Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
IPY Research Awards (and Awards-To-Be-Made) Resulting from Second NSF IPY Competition, with International Partnerships 0732656 Martinson, Douglas G. (Columbia University, Lamont Doherty Earth Observatory) IPY: SASSI Mooring Array in Western Antarctic Peninsula The Office of Polar Programs, Antarctic Ocean and Atmospheric Sciences Program has made this award to support a research program to observe and understand the role of the ocean in the dramatic warming of the Western Antarctic Peninsula Region. The Antarctic Peninsula region has undergone the most marked climate change on the globe over the past 50 years. In particular, it has undergone rapid winter regional surface atmospheric warming in winter that exceeds the global average fivefold. The rising temperatures have been accompanied by retreat of the perennial sea ice cover and over 85% of regional glaciers, as well as pronounced ecosystem changes. The source for the heat in winter, when the atmosphere is cold, must be the ocean but direct observations of the ocean are limited primarily to the austral summer season. Antarctic circumpolar current (ACC) water is relatively warm and is known to periodically make its way onto the canyon-incised, relatively narrow shelves of the Peninsula via upwelling processes. It is thought that the canyons may serve as conduits for the upwelled water but it is not known how frequently and on what scale warm water incursions occur. It is proposed to obtain and interpret time-series observations from an array of temperature, pressure and current sensing moorings to address these issues. An optimization scheme will be applied to the placement of the sensors on the moorings in order to effectively capture the signals of interest. In combination with ongoing hydrographic work, including recently funded improved spatial coverage by gliders, which is part of the Palmer Long Term Ecosystem Research (LTER) program, regional ocean heat budgets will be determined. The relationship of the warm water incursions with measures of larger scale atmospheric dynamics such as the El Nino Southern Oscillation and Antarctic Dipole will also be examined. Broader impacts: The primary impact of this work will be to understand one of the major drivers of the marked change along the Antarctic Peninsula. Provision of key physical context information to the Palmer LTER extends its impact to the understanding of a rich ecosystem undergoing change. This project is a contribution to the Synoptic Antarctic Shelf-Slope Interactions Study (SASSI) and to the Climate of Antarctica and the Southern Ocean (CASO) program. Both of these were endorsed by the International Council for Science as a part of their IPY honeycomb of endorsed activities and are tied into the objectives a number of international science planning communities. This research is collaborative with the Polar Research Institute of China. The Chinese will emplace complementary moorings to the ones proposed here as an International Polar Year marine science contribution. The investigators will make quality controlled data accessible through national archives. Polar Research Institute of China ICSU: 8 1 0732921, 0732738, 0732651, 0732602, 0732655 Scambos, Ted A. (University of Colorado Boulder) Petit, Erin C (Portland State University) Gordon, Arnold L. and Huber, Bruce A. (Columbia University, Lamont Doherty Earth Observatory) Truffer, Martin (University of Alaska Fairbanks) Mosley-Thompson, Ellen and Thompson, Lonnie G. (Ohio State University) Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System – A Multidisciplinary Approach, Cryosphere and Oceans Like no other region on Earth, the northern Antarctic Peninsula represents a spectacular natural laboratory of climate change and provides the opportunity to study the record of past climate and ecological shifts alongside the present-day changes in one of the most rapidly warming regions on Earth. This award supports the cryospheric and oceanographic components of an integrated multi-disciplinary program to address these rapid and fundamental changes now taking place in Antarctic Peninsula (AP). By making use of a marine research platform (the RV NB Palmer and on-board helicopters) and additional logistical support from the Argentine Antarctic program, the project will bring glaciologists, oceanographers, marine geologists and biologists together, working collaboratively to address fundamentally interdisciplinary questions regarding climate change. The project will include gathering a new, high-resolution paleoclimate record from the Bruce Plateau of Graham Land, and using it to compare Holocene- and possibly glacial-epoch climate to the modern period; investigating the stability of the remaining Larsen Ice Shelf and rapid post-breakup glacier response – in particular, the roles of surface melt and ice-ocean interactions in the speed-up and retreat; observing the contribution of, and response of, oceanographic systems to ice shelf disintegration and ice-glacier interactions. Helicopter support on board will allow access to a wide range of glacial and geological areas of interest adjacent to the Larsen embayment. At these locations, long-term in situ glacial monitoring, isostatic uplift, and ice flow GPS sites will be established, and high-resolution ice core records will be obtained using previously tested lightweight drilling equipment. Long-term monitoring of deep water outflow will, for the first time, be integrated into changes in ice shelf extent and thickness, bottom water formation, and multi-level circulation by linking near-source observations to distal sites of concentrated outflow. The broader impacts of this international, multidisciplinary effort are that it will significantly advance our understanding of linkages amongst the earth's systems in the Polar Regions, and are proposed with international participation (UK, Spain, Belgium, Germany and Argentina) and interdisciplinary engagement in the true spirit of the International Polar Year (IPY). It will also provide a means of engaging and educating the public in virtually all aspects of polar science and the effects of ongoing climate change. The research team has a long record of involving undergraduates in research, educating high-performing graduate students, and providing innovative and engaging outreach products to the K-12 education and public media forums. Moreover, forging the new links both in science and international Antarctic programs will provide a continuing legacy, beyond IPY, of improved understanding and 2 cooperation in Antarctica. North Wollongong, Australia Civil Engineering and Geosciences, University of Newcastle, UK Scott Polar Research Institute, Cambridge, UK University of Wales, Aberystwyth, UK University of Southampton, UK Alfred Wegener Polar Institute, Germany University of Ghent, Belgium Queens University, Canada Argentine Antarctic Institute, Argentina University of Barcelona, Spain ICSU: 0732983 Vernet, Maria (University of California – San Diego, Scripps Institute of Oceanography) Van Dover, Cindy L. (Duke University) Smith, Craig R. (University of Hawaii) McCormick, Michael L. (Hamilton College) Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System – A Multidisciplinary Approach, Marine Ecosystems A profound transformation in ecosystem structure and function is occurring in coastal waters of the western Weddell Sea, with the collapse of the Larsen B ice shelf. This transformation appears to be causing the rapid demise of the extraordinary seep ecosystem discovered beneath the ice shelf. This event provides an ideal opportunity to examine fundamental aspects of ecosystem transition associated with climate change. The project will use a remotely operated vehicle, shipboard samplers, and moored sediment traps to characterize the seep community and to compare these areas to the open sea-ice zone. These changes will be placed within the geological, glaciological and climatological context that led to ice-shelf retreat, through companion research projects funded in concert with this effort. The research features international collaborators from Argentina, Belgium, Canada, Germany, Spain and the United Kingdom. The broader impacts include participation of a science writer; broadcast of science segments by members of the Jim Lehrer News Hour (Public Broadcasting System); material for summer courses in environmental change; mentoring of graduate students and postdoctoral fellows; and showcasing scientific activities and findings to students and public through podcasts. Civil Engineering and Geosciences, University of Newcastle, UK Scott Polar Research Institute, Cambridge, UK University of Wales, Aberystwyth, UK University of Southampton, UK Alfred Wegener Polar Institute, Germany University of Ghent, Belgium Queens University, Canada 3 Argentine Antarctic Institute, Argentina University of Barcelona, Spain ICSU: 0732995 and 0732940 Barbeau, David L.; co-PI Robert C. Thunell (University of South Carolina at Columbia) Scher, Howard D. (University of California, Santa Cruz) Collaborative Research in IPY: Testing the Polar Gateway Hypothesis: An Integrated Record of Drake Passage Opening and Antarctic Glaciation This project studies the relationship between opening of the Drake Passage and formation of the Antarctic ice sheet. Its goal is to answer the question: What drove the transition from a greenhouse to icehouse world thirty-four million years ago? Was it changes in circulation of the Southern Ocean caused by the separation of Antarctica from South America or was it a global effect such as decreasing atmospheric CO2 content? This study constrains the events and timing through fieldwork in South America and Antarctica and new work on marine sediment cores previously collected by the Ocean Drilling Program. It also involves an extensive, multidisciplinary analytical program. Compositional analyses of sediments and their sources will be combined with (U-Th)/He, fission-track, and Ar-Ar thermochronometry to constrain uplift and motion of the continental crust bounding the Drake Passage. Radiogenic isotope studies of fossil fish teeth found in marine sediment cores will be used to trace penetration of Pacific seawater into the Atlantic. Oxygen isotope and trace metal measurements on foraminifera will provide additional information on the timing and magnitude of ice volume changes. The broader impacts include graduate and undergraduate education; outreach to the general public through museum exhibits and presentations, and international collaboration with scientists from Argentina, Ukraine, UK and Germany. The project is supported under NSF's International Polar Year (IPY) research emphasis area on "Understanding Environmental Change in Polar Regions". This project is also a key component of the IPY Plates & Gates initiative (IPY Project #77), focused on determining the role of tectonic gateways in instigating polar environmental change. CADIC/CONICET (Ministerio de Educación, Ciencia y Tecnologia e innovación Productiva, Consejo Nacional de Investigaciones Cientificas y Técnicas, Centra Austral de Investigaciones Cientificas, Tierra del Fuego, Argentina Servicio Geológico Minero Nacional (SEGEMAR), Buenos Aires, Argentina National Taras Shevchenko University of Kiev, Ukraine IPY Plates & Gates Project, School of Earth & Environment, University of Leeds, Leeds, UK IPY Plates & Gates Project, Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany ICSU: 77 4 0732946 Steffen, Konrad; co-PI Eric Rignot (University of Colorado Boulder) IPY: Stability of Larsen C Ice Shelf in a Warming Climate This award supports a field experiment, with partners from Chile and the Netherlands, to determine the state of health and stability of Larsen C ice shelf in response to climate change. Significant glaciological and ecological changes are taking place in the Antarctic Peninsula in response to climate warming that is proceeding at 6 times the global average rate. Following the collapse of Larsen A ice shelf in 1995 and Larsen B in 2002, the outlet glaciers that nourished them with land ice accelerated massively, losing a disproportionate amount of ice to the ocean. Further south, the much larger Larsen C ice shelf is thinning and measurements collected over more than a decade suggest that it is doomed to break up. The intellectual merit of the project will be to contribute to the scientific knowledge of one of the Antarctic sectors where the most significant changes are taking place at present. The project is central to a cluster of International Polar Year activities in the Antarctic Peninsula. It will yield a legacy of international collaboration, instrument networking, education of young scientists, reference data and scientific analysis in a remote but globally relevant glaciological setting. The broader impacts of the project will be to address the contribution to sea level rise from Antarctica and to bring live monitoring of climate and ice dynamics in Antarctica to scientists, students, the non-specialized public, the press and the media via live web broadcasting of progress, data collection, visualization and analysis. Existing data will be combined with new measurements to assess what physical processes are controlling the weakening of the ice shelf, whether a break up is likely, and provide baseline data to quantify the consequences of a breakup. Field activities will include measurements using the Global Positioning System (GPS), installation of automatic weather stations (AWS), ground penetrating radar (GPR) measurements, collection of shallow firn cores and temperature measurements. These data will be used to characterize the dynamic response of the ice shelf to a variety of phenomena (oceanic tides, iceberg calving, ice-front retreat and rifting, time series of weather conditions, structural characteristics of the ice shelf and bottom melting regime, and the ability of firn to collect melt water and subsequently form water ponds that over-deepen and weaken the ice shelf). This effort will complement an analysis of remote sensing data, ice-shelf numerical models and control methods funded independently to provide a more comprehensive analysis of the ice shelf evolution in a changing climate. Institute for Marine and Atmospheric Research, Utrecht University, Utrecht, The Netherlands Centro de Estudios Cientificos, Valdivia, Chile ICSU: 0732906, 0732804, 0732869, 0732730, 0732926, 0732844 Bindschadler, Robert A. (NASA Goddard Space Flight Center) McPhee, Miles G. (McPhee Research Company) Holland, David M. (New York University) 5 Truffer, Martin (University of Alaska Fairbanks) Stanton, Timothy, and Shaw, William J. (Naval Postgraduate School and University of California, Santa Barbara) Anandakrishnan, Sridhar (Pennsylvania State University) Collaborative Research in IPY: Ocean-Ice Interaction in the Amundsen Sea Sector of West Antarctica The Office of Polar Programs, Antarctic Integrated and System Science Program has made this award to support an interdisciplinary study of the effects of the ocean on the stability of glacial ice in the most dynamic region the West Antarctic Ice Sheet, namely the Pine Island Glacier in the Amundsen Sea Embayment. This collaborative project is being jointly supported with NASA. Recent observations indicate a significant ice loss, equivalent to 10% of the ongoing increase in sea-level rise, in this region. These changes are largest along the coast and propagate rapidly inland, indicating the critical impact of the ocean on ice sheet stability in the region. While a broad range of remote sensing and ground-based instrumentation is available to characterize changes of the ice surface and internal structure (deformation, ice motion, melt) and the shape of the underlying sediment and rock bed, instrumentation has yet to be successfully deployed for observing boundary layer processes of the ocean cavity which underlies the floating ice shelf and where rapid melting is apparently occurring. Innovative, mini ocean sensors that can be lowered through boreholes in the ice shelf (about 500 m thick) will be developed and deployed to automatically provide ocean profiling information over at least three years. Their data will be transmitted through a conducting cable frozen in the borehole to the surface where it will be further transmitted via satellite to a laboratory in the US. Geophysical and remote sensing methods (seismic, GPS, altimetry, stereo imaging, radar profiling) will be applied to map the geometry of the ice shelf, the shape of the sub iceshelf cavity, the ice surface geometry and deformations within the glacial ice. NASA is supporting satellite measurements and the deployment of a robotic-camera system to explore the environment in the ocean cavity underlying the ice shelf. To integrate the seismic, glaciological and oceanographic observations, a new 3-dimensional coupled iceocean model is being developed which will be the first of its kind. The project builds on the knowledge gained by the highly successful West Antarctic Ice Sheet program. Broader impacts: This project is motivated by the potential societal impacts of rapid sea level rise and should result in critically needed improvements in characterizing and predicting the behavior of coupled ocean-ice systems. It is a contribution to the International Polar Year and was endorsed by the International Council for Science as a component of the “Multidisciplinary Study of the Amundsen Sea Embayment” proposal #258 of the honeycomb of endorsed IPY activities. The research involves substantial international partnerships with the British Antarctic Survey and the University of Bristol in the UK. The investigators will partner with the previously funded “Polar Palooza” education and outreach program in addition to undertaking a diverse set of outreach activities of their own. Eight graduate students and one undergraduate as well as one post doc will be integrated into this research project. School of Geographical Sciences, University of Bristol, UK British Antarctic Survey, UK 6 ICSU: 258 0732885 Tweedie, Craig E. (University of Texas at El Paso) IPY: Back to the Future (BTF) – Resampling Old Research Sites To Assess Change in High Latitude Terrestrial Ecosystem Structure and Function Craig Tweedie of the University of Texas at El Paso will determine how key structural and functional characteristics of high latitude terrestrial ecosystems in the Arctic have changed over the past 25 or more years and predict whether such changes are likely to continue. The PI will play a leading role in the international Back to the Future project (IPY project #214). He will establish a focused international Back to the Future coordination and information web portal; rescue data and re-establish and re-sample four principal ecological study sites including the International Biological Program (IBP) site near Barrow, Alaska, the Research in Arctic Terrestrial Ecosystems (RATE) site near Atqasuk, Alaska, and the PhD dissertation sites of two well known and respected Arctic plant ecologists, Pat Webber (Central Baffin Island) and Terry Callaghan, Disko Island (West Greenland); and coordinate two international Back to the Future synthesis meetings. Date will be archived for open access at the National Snow and Ice Data Center (NSDIC). Students will assist in re-sampling historical research sites and gain hands-on research experience under the mentorship of Webber and Callaghan as the latter resample sites of their own Ph.D. research approximately 40 years after they were established. The project will elucidate decadal scale ecosystem changes in multiple land cover types across the Arctic; validate and improve models of environmental change based on remote sensing; assess the impact of global change on ecosystem structure and function including arctic plant biodiversity; and improve our knowledge feedback mechanisms between land and atmospheric subsystems of the arctic. Undergraduate students, a graduate student, and a postdoctoral fellow will be trained and mentored at a leading minority serving institution. The students will be mentored by pioneering and accomplished Arctic researchers. of Alberta, Canada International Tundra Experiment (ITEX), University of British Columbia St. Petersburg State University, Russia Abisko Naturvetenskapliga Station, Sweden (International BTF proposals are pending for other investigators in Sweden, Norway, Iceland, Russia, and UK ICSU: 214 0733074 Schimel, Joshua P. (University of California – Santa Barbara Reardon, Kenneth F. and Wallenstein, Matthew D. (Colorado State University) Weintraub, Michael N. (University of Toledo) 7 IPY: Microbial Winter Survival Physiology: A Driver on Microbial Community Composition and Carbon Cycling Arctic landscapes are changing rapidly. The "greening" and "shrubification" of the Arctic drive climate feedbacks (via albedo and energy exchange) as well as affecting human activities directly. Vegetation change, however, is driven belowground by nutrient availability, a result of microbial feedbacks that also have independent effects on the climate system (e.g. CO2 and CH4 emissions). The microbial system, therefore, plays a key role in regulating the functioning of the overall Arctic System. As organisms migrate and spread across the Arctic, the processes they regulate migrate with them. Predicting changes in the pattern of tundra biogeochemistry therefore requires understanding the factors that regulate the distribution and functioning of key groups of microbes. Are bacteria and fungi regulated simply by the chemical substrates available to them, and thus by plant distribution? Or alternatively, are microbes independently regulated by the challenges of tolerating the freezing conditions of winter? What are microbial adaptations to low temperature, and what are their ecological consequences? These are interesting questions for basic microbial ecology, but are also important in the context of the changing Arctic. The core hypotheses of this project are: 1) the distribution of specific microbial groups is controlled primarily by plant community composition, but 2) the challenge of acclimating to winter requires changes in membrane composition, cryoprotectants, and freeze-tolerance proteins that involve physiological costs to microbes that have important implications for overall ecosystem function. Hypotheses will be tested by analyzing patterns of microbial distribution and physiology across toposequences in Alaska (low Arctic) and Greenland (high Arctic), capturing latitude and plant community variation. Seasonal changes (pre- and post-freeze, pre- and post-thaw) will be assessed by using clone library and quantitative genetic analyses (QPCR) to evaluate microbial community composition. Microbial membrane chemistry (phospholipids) and cryoprotectants (amino acids, trehalose, polyols) will be assessed by chemical analyses. Shifts in protein production patterns, including anti-freeze proteins, chaperones, and others will be assessed using proteomic techniques. This work will be supported by laboratory studies evaluating specific aspects of freezing stress: rate, temperature, and duration. It will be integrated with other studies on pan-Arctic microbial population dynamics by collaboration with the ICSU MERGE network. This will be the first ever study on how stress physiology regulates microbial distributions. Life Sciences Faculty, University of Vienna, Austria Netherlands Institute of Ecology, Unit for Polar Ecology, Yerseke, The Netherlands School of Biosphere Science, Hiroshima University, Japan ICSU: 55 0732168 Post, Eric S. (Pennsylvania State University) IPY: Establishing a Legacy for International Collaboration Investigating Ecological Consequences of Arctic Climate Change Funding was provided to Pennsylvania State University to support for a one-year 8 residence for Dr. Eric Post at the Danish Ministry of Environment during the International Polar Year. In Denmark, Dr. Post will coordinate his ecological research at Kangerlussuaq, West Greenland with research conducted by Danish colleagues at Zackenberg, Northeast Greenland. This collaborative research seeks to understand fundamental aspects of the ecology of Arctic organisms and how they are responding to environmental change. The PI's residence at the Danish Ministry of Environment will promote formal collaboration, the development of infrastructure, and data-sharing that will foster deeper understanding of Arctic ecology and the likely effects of climate change. Specific focus will be given to comparisons and contrasts between the interaction between plants and animals at high- and low-Arctic sites. The funding also will be used to formalize the exchange of students and post-doctoral fellows studying ecology at Kangerlussuaq (Pennsylvania State) and at Zackenberg laboratory (Danish Ministry of Environment). The collaborative effort will integrate research from the low-Arctic site (Kangerlussuaq) and the high-Arctic site (Zackenberg) with three foci: (1) individual- and species-level responses to climatic warming (how to the sequences of life history events of individuals respond to warming in high and low-Arctic communities); (2) community-level response to climatic warming (integrating long-term observations of the timing of biological processes and changes in that timing to determine whether responses to warming differ according to trophic level and between the high- and low Arctic); and (3) ecosystem-level response to climatic warming (investigating the role of plant-animal interactions in vegetation response to climatic warming in low- and high-Arctic environments). The funding will foster international mentoring of graduate students and postdoctoral fellows; establish the infrastructure for long-term, international scientific collaboration in Greenland; and enhance public awareness of Arctic ecology and threats posed by global warming. Danish Ministry of the Environment, Denmark ICSU: 0732758 Chapin, F. Stuart (Terry); co-PIs Taqulik Hepa, Gary Kofinas, T. Scott Rupp (University of Alaska Fairbank; Hepa is with the North Slope Borough) IPY: Impact of High-Latitude Climate Change on Ecosystem Services and Society The Arctic System is undergoing unprecedented changes, many of which are consequences of global warming trends that are amplified at high latitudes. Arctic change is regionally variable for both biophysical and cultural reasons. Ecosystem services, which are the benefits that society derives from ecosystems, are the critical links between these environmental changes, ecological impacts, and their consequences for society. The goals of the proposed research are to: (1) document the current status and trends in ecosystem services in the arctic and boreal forest, (2) project future trends in these 9 services, and (3) assess the societal consequences of altered ecosystem services. The intellectual merit of this research derives from several sources, including: (1) provision of a qualitative assessment of status and trends in a comprehensive suite of ecosystem services at scales ranging from individual communities to the pan-arctic, (2) provision of a quantitative regional assessment of historical and likely future trends of those ecosystem services that are of greatest concern to Alaskan communities, substantially enhancing the capacity to predict the societal consequences of climate change for Alaskan communities and policy makers, (3) involvement of Alaskan communities in the design, implementation, and use of research to ensure from the outset that the research directly meets stakeholder needs, (4) networking with other research groups to share research results as an integral component of the program, and (5) collaboration with similar research programs in other arctic nations to achieve a panarctic synthesis of status and trends in ecosystem services. The broader impacts include: (1) inclusion of indigenous communities as integral components of the research team (rather than as passive recipients of research results), empowering local communities to understand present and future options for adaptation to climate change, (2) communication of research products that are immediately useful for policy formulation by communities and agencies as an integral component of the process, (3) training of Alaska Natives at PhD, undergraduate, and high-school levels to conduct research on the ecological and societal consequences of climate change, (4) directly addressing critical a missing link in most global change research - quantitative assessment of causes, consequences, and likely future trajectories of those ecosystem services that are of greatest concern to society, and (5) leaving a legacy of spatially explicit time series of data and maps of ecosystem services and their likely future trends. The research addresses IPY/understanding environmental change because it focuses on: (1) understanding relationships among climate changes, ecosystems and society, including mechanisms that control these relationships at multiple spatial scales, (2) understanding relationships among environmental change and ecosystem services and their socio-economic consequences in polar regions, (3) launching new initiatives that are interdisciplinary in nature, leave a data legacy, and eng gage the public, and (4) using LTER and AON sites and building on international collaborations. (Université du Québec en Abitibi-Témiscamigue), Quebec, Canada Canadian Wildlife Service, and Coordinator of CircumArctic Rangifer Monitoring and Assessment (CARMA) Network, Canada CAVIAR (Community Adaptation and Vulnerability In Arctic Regions); Department of Geography, University of Guelph, Canada Plant Ecology and Biogeography, University of Lapland, Arctic Centre, Rovaniemi, Finland Dept. of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden Forestry Faculty, University of Joensuu, Finland ICSU: 162, 157 10 0732713 Harlow, Henry J., Ben-David, Meerav (University of Wyoming) Adaptive Long-Term Fasting in Land- and Ice-Bound Polar Bears: Coping with Ice Loss in the Arctic? The population biology of polar bears occupying land in summer months is comparatively well known. Much less is known about the larger fraction of polar bear populations which stays on the ice through the summer. A better understanding of the physiology of fasting in both summer habitats is needed to understand how reduced sea ice cover in the Arctic will impact polar bear populations. Bears that stay ashore in summer have almost no access to food and tend to be inactive. Those that stay on the ice, however, have continued access to prey and make extensive movements. This project pairs scientists from the University of Wyoming and the U. S. Geological Service to follow the movements of bears in both habitats and monitor their body temperature, muscle condition, blood chemistry, and metabolism. They will determine the physiological implications of summering on the ice versus on shore. The physiological data will be added to spatially-explicit individual-based population models to predict population response to reduced ice cover. The results will provide information important to management by indigenous, U.S., and international management and conservation agencies and address the interests of policy makers and the public. IUCN (World Conservation Union) Polar Bear Specialist Group ICSU: 0732726 and 0732739 Pfeffer, W. Tad; co-PIs Ian M. Howat (University of Washington) and Shad R. O’Neel (University of Colorado Boulder) Conway, Howard B. (University of Washington) Collaborative Research in IPY: Dynamic Controls on Tidewater Glacier Retreat Intellectual merit. The Principal Investigators will study both ongoing and historical changes in dynamics at the rapidly retreating Columbia Glacier, in south central Alaksa. Tidewater glaciers (TWGs) like Columbia Glacier terminate in the ocean and merit special attention because they exhibit some of the largest and strongly non-linear dynamic volume changes of all glaciers worldwide. In addition, most ice sheet mass loss occurs at marine-ending outlet glaciers that display dynamic instabilities very similar to TWG. Yet, the response of these glaciers to climate forcing remains very poorly understood. They will continue an unmatched 30-year record of observations at Columbia Glacier and to study the similarities between it and the rapidly retreating Greenland outlet glaciers. Project goals are aimed at a predictive capability for future TWG volume changes, which are a dominant constituent of global sea level rise. A variety of measurements including vertical aerial photogrammetry (and subsequent featuretracking), terrestrial time-lapse photogrammetry, airborne radar, GPS surveying, and meteorological monitoring will provide robust constraints for both inverse and forward modeling of the stress and flow fields. The need for a better understanding of the 11 interaction between climate forcing, glacier dynamics and ice volume change is widely recognized and has led to recommendations for better glacier observations in the the IPCC 2007 Summary for Policymakers, the SEARCH Implementation Plan, the IPY E.U. initiative GLACIODYN, and the NSF call for an Arctic Observing Network. Both the SEARCH Implementation Plan and GLACIODYN list Columbia Glacier specifically as a key glaciological site. This study strongly aligned with the goals of GLACIODYN, and has been endorsed by the steering committee. Broader impacts. Because of their large numbers, small glaciers still dominate the cryosphere's contribution to global sea level rise. The largest uncertainties in this contribution are from TWG where volume changes are controlled by unmeasured and poorly understood dynamical processes. Rapid freshwater inputs of glaciers and ice sheets directly affect ocean currents, and catastrophic retreats have affected global climate, as evidenced through Heinrich Events. Regional and local changes from rapid volume change at TWGs affect fjord geometry and circulation while exposing new landmass, which causes large changes in terrestrial ecosystems including some of the strongest observed isostatic rebound signals. This study will create new partnerships through collaborations with European colleagues interested in advancing terrestrial photogrammetric methodology, and through a forward modeling collaboration with A. Vieli. The activity is a collaboration between researchers from the Universities of Colorado and Washington, and has a strong educational component, involving undergraduates, and two graduate students. Outreach will occur through channels offered by INSTAAR and National Snow and Ice Data Center (NSIDC), local outreach activities conducted by the Principal Investigators in Valdez, Alaska and University of Washington. Data will be provided to the GLACIODYN outreach coordinator, who will use Virtual Globe technology for project visualization. Results will appear in pee reviewed journals, presentations at national and international meetings, and small workshops focusing on software and algorithm development, and will be archived at NSIDC and UNAVCO. Field Sites include Greenland. IASC Working Group on Arctic Glaciology/GLACIODYN Coordinator, University of Utrecht, Meteorology, The Netherlands Dept. of Geography, University of Durham, UK Earth Sciences, University of Silesia, Poland Stuttgart University of Applied Sciences or HFT, Stuttgart, Germany ICSU: 37 0732925 Persson, Ola P.G. (University of Colorado Boulder) IPY: Remote Sensing of the Macro and Microphysical Structure of Arctic Clouds During ASCOS (Arctic Summer Clouds Ocean Study) The international Arctic Summer-Clouds Ocean Study (ASCOS) will provide an opportunity during the International Polar Year (IPY) to obtain measurements of macroand microphysical properties of clouds over the pack ice in the high Arctic. These measurements will be particularly unique and valuable because they will be co-located 12 with fine-scale measurements of the Arctic boundary-layer structure and processes and of aerosol concentrations and types. The data set will be a legacy of IPY. In particular, they provide critical data for validation of climate model parameterizations of Arctic clouds, addressing a key issue identified in current climate models. Funds are provided to: 1) Deploy a cloud radar, a microwave radiometer, and a ceilometer onboard the icebreaker R/V Oden to obtain measurements from which the PI will derive cloud macroand microphysical properties. The measurements will be obtained in Arctic all-liquid, allice, and mixed-phase clouds near the North Pole during the international ASCOS field program in July- September, 2008. The macrophysical properties will include cloud base, cloud top, cloud fraction, cloud duration, and cloud reflectivity. The microphysical properties will include cloud phase, liquid water path, and profiles of ice water content, ice particle effective radius, liquid water content, effective drop radius, vertical velocity, and turbulent dissipation rate. 2) Compare these properties during this pack-ice transition season to cloud properties similarly derived by the project participants and others over the pack ice during SHEBA, at Arctic Ocean coastal sites near Barrow, Alaska, and at the SEARCH site in Eureka, Canada. 3) Temporally and spatially link these cloud properties to the evolution of the boundarylayer wind and thermodynamic structure and to the evolution and distribution of aerosols measured by other researchers during ASCOS. This objective will provide insights to key processes for the current climate and for Arctic climate change, and is highly linked to work by other ASCOS participants, hence requiring significant international scientific collaboration. Dept. of Meteorology, Stockholm University, Sweden Dept. of Meteorology, Stockholm University, Sweden EU - DAMOCLES IASOA ICSU: 40 0732556 Shepson, Paul B. (Purdue University) IPY: Halogen Chemistry and Ocean-Atmosphere-Sea Ice-Snowpack (OASIS) Chemical Exchange During IPY The objective of this project is to develop a novel instrument for ultra-trace level determination of the halogen atom (Cl, Br, and I) and radical (ClO, BrO and IO) concentrations in the air above the Arctic Ocean. The development of the instrument will help to address the hypothesis that halogen atom chemistry derived from salt associated with the surface of the sea ice has a very large impact on the oxidizing power of the Arctic atmospheric boundary layer. This in turn results in production of cloud condensation nuclei, which in turn influence cloud cover. However, the ability to directly 13 measure halogen atom concentrations needs to be developed, so that this important chemistry (that results in rapid depletion of ozone and mercury during Arctic spring) can be monitored as sea ice cover changes in the coming decades. The instrument to be developed involves sampling air into a quartz flowtube, in which the halogen atoms react rapidly with trifluoropropene, to produce a halogenated ketone that can be detected with great sensitivity using chromatographic techniques. During this project the development of this field-calibrated method will be completed, and it will be implemented in a variety of polar marine environments during the International Polar Year. Fieldwork will be done aboard the Canadian icebreaker 'Amundsen' in spring 2008 and the Swedish icebreaker 'Oden' in summer 2008, and at Barrow and a pack ice camp in early spring 2009. Interpretation of the field measurements will be aided by 1-D, multiphase, numerical modeling of interactions among reactive species, and mixing and transport. An important outcome of the project will be a fully-tested, robust, portable sampling device that will facilitate long-term measurements of halogen atom chemistry as part of the Arctic Observing Network as the sea ice cover in the Arctic changes. Broader impacts include (1) participation in the fieldwork of a writer, Peter Lourie, who is planning to write a book about global climate change, and (2), development of public outreach and graduate courses related to Arctic climate change in partnership with the Purdue Climate Research Center. Dept. of Meteorology, Stockholm University, Sweden Dept. of Meteorology, Stockholm University, Sweden Atmospheric Science and Technology Division, Science and Technology Branch, Environment Canada Centre for Earth Observation Science, University of Manitoba, Canada ICSU: 38 0732796 and 0732875 Pekar, Stephen F. (CUNY Queens College) Speece, Marvin A. (Montana Tech. of the University of Montana) Collaborative Research in IPY: Using New Tools to Explore Undiscovered Country: Understanding the Tectonic and Stratigraphic History of Offshore New Harbor, Ross Sea, Antarctica This project studies the Earth's transition thirty four million years ago from a greenhouse state with forests in Antarctica to its current icehouse state with ice caps at both poles. This time interval--the Eocene-Oligocene--had atmospheric CO2 levels similar to those predicted for the Earth in the next century. Sedimentary records of this period can thus help us understand how the Earth's climate will change in the near future. This project investigates the transition in Antarctica by collecting seismic and gravity data from offshore New Harbor (ONH). The work's ultimate goal is to select areas for future drilling as part of the ANDRILL Program, a multinational initiative that aims to recover stratigraphic records of Antarctica's climatic and glacial history over the past 50 million years. ONH is an ideal locale to sample these sedimentary archives as existing data suggest that substantial strata deposited from the Eocene through mid-Oligocene. The work uses new over-ice seismic techniques that employ a snowstreamer and air gun to quickly acquire seismic reflection data. A complementary high resolution gravity survey 14 will also be performed to determine structural patterns. The outcomes will be tied to information from other surveys and drill holes to characterize this region. The study will also help understand the link between formation of the sedimentary basin and the adjacent mountain range. In terms of broader impacts, this project has an integrated educational and mentoring program targeting sixth through tenth grade students from groups typically underrepresented in the sciences. This will be highlighted by a teacher accompanying the expedition. In addition, this project provides support for two graduate and two undergraduate students. The project is supported under NSF's International Polar Year (IPY) research emphasis area on "Understanding Environmental Change in Polar Regions". This project will leave an important legacy for IPY by characterizing drilling sites relevant to understanding global warming. The project is also international in scope by including scientists from New Zealand. In addition, this project will help educate the next generation of Antarctic researchers through education at the K12 through graduate student levels. University of Otago, New Zealand ANDRILL Executive Director ANDRILL Science Committee Chair, Antarctic Research Centre, Victorian University of Wellington, New Zealand Earth Sciences, University of Parma, Italy Instituto Nazionale de Geofysica e Vulcanologia ICSU: 256 0733007 Parsons, David B.; co-PIs Dale Barker, Terrance Hock, Jordan Powers (National Center for Atmospheric Research) IPY: NCAR Facility Support, Scientific Contributions and Collaborative Research to Understand Environmental Change in Antarctica through Participation in CONCORDIASI The Office of Polar Programs, Antarctic Ocean and Atmospheric Science Program and Geosciences Directorate, Atmospheric Science Division have made this award to support the deployment of innovative driftsonde gondolas on super high pressure balloons to be launched from McMurdo by the French Centre National D'Etudes Spatiales. The instrumented balloons will be released during August to November 2008 in the polar stratospheric vortex as part of the international CONCORDIASI atmospheric science project. The long-duration balloons will drift for up to several months carrying driftsondes comprised of up to 60 miniature dropsondes that can be released remotely upon demand to vertically profile the atmosphere from flight level to the ground for temperature, humidity, pressure and wind speed. The data will be posted and made accessible in near real time. Broader impacts: The driftsonde data to be contributed by NCAR are essential to the atmospheric studies targeted by CONCORDIASI ranging from the understanding of 15 gravity wave propagation in the stratosphere to stratospheric cloud particle formation and ozone depletion to validation of satellite sensors that promise to lead to improved operational forecasting for Antarctica. Meteo France plans to use the driftsonde data to calibrate the Infrared Advanced Sounder Interferometer (IASI) sensor launched on the European METOP satellite in October 2006 for operational forecasting applications in polar regions. Additional ground based atmospheric soundings are to be undertaken at several other locations including the newly established Italian-French research station CONCORDIA on Dome C. CONCORDIASI (which is a contraction of CONCORDIA and IASI) stems from a French-US partnership involving a number of institutions, namely NCAR, UWyoming,and UCLA in the US, and CNES. Meteo France, Laboratoire de Meteorologie Dynamique, Institut Paul Emile Victor and the Laboratoire de Glaciologie et Geophysique de l'Environment in France. CONCORDIASI is a contribution to the IPY-The Observing System Research and Predictability Experiments (THORPEX) cluster of activities approved by the ICSU-WMO panel. THORPEX is a ten-year program within the World Weather Research Program. Centre Spatial de Toulouse Sous-Direction Ballons, Equipe Projects Ballons, Centre National d’Études Spatiales (CNES), France Laboratoire de Météorologie Dynamique, Ecole Polytechnique, France Météo-France Laboratoire glaciologie et géophysique de l’énvironnement, France European Center for Medium Range Weather Forecasting ENEA and PNRA, Italy Bureau of Meteorology Research Centre, Australia ICSU: 41, 121 0732535 Arrigo, Kevin R. (Stanford University) Shedding Dynamic Light on Iron Limitation: The Interplay of Iron Limitation and Dynamic Irradiance Conditions in Governing the Phytoplankton Distribution in the Ross Sea The Southern Ocean plays an important role in the global carbon cycle, accounting for approximately 25% of total anthropogenic CO2 uptake by the oceans, mainly via primary production by phytoplankton. Previous studies show that iron, light availability, and the quality of the light climate play a major role in defining where and when the different phytoplankton taxa bloom. The proposed research will examine how the interaction between iron limitation and irradiance govern phytoplankton distributions and will result in improved models for ocean, ice and atmosphere interactions. The models will generate future climate scenarios to test the impact of climate change on the phytoplankton community structure, distribution, primary production and carbon export in the Southern Ocean. Outreach will include participation in Stanford’s Summer Program for Professional Development for Science Teachers, Stanford’s School of Earth Sciences high school internship program, and development of curriculum for local science training centers, including the Chabot Space and Science Center. Alfred Wegener Institute for Polar and Marine Research, Germany 16 University of Groningen. The Netherlands Royal Netherlands Institute of Sea Research IPY-GEOTRACES Program; IPY- Polar Aquatic Microbial Ecology ICSU: 0732327 McGovern, Thomas (CUNY Hunter College) IPY: Long-Term Human Ecodynamics in the Norse North Atlantic: Cases of Sustainability, Survival and Collapse Why do societies succeed or fail when confronted with climate change, culture contact, and the unexpected outcomes of long term human impact upon landscape and resources? North Atlantic provides some unique case studies for the collaborative, cross-disciplinary study of these fundamental questions. Just over 1000 years ago, a wave of Viking-Age Scandinavian colonization brought a common culture, language, and set of economic strategies from Norway to Newfoundland. By 1800, these once uniform island communities had experienced radically different fates: the Greenland colony was totally extinct, Icelanders were barely surviving in a heavily eroded landscape, and the Faroese were continuing a stable and successfully sustainable thousand year long adaptation with apparently little erosion or population loss. These contrasting case studies provide the focus for an international, interdisciplinary project that makes use of the International Polar Year (IPY) initiative to bring together scholars, students, and local community members from Greenland, Iceland, and the Faroe Islands in a cooperative effort to; 1) Understand the complex dynamics of human-environment interaction on the millennial scale, human impact on island flora, fauna, and soils, sustainable and unsustainable resource use, the impacts of climate change, interactions between subsistence and exchange economies; 2) Collect and analyze directly comparable data sets (artifacts, zooarchaeology, archaeobotany, geoarchaeology) from coordinated regional-scale excavations taking place on all three islands as an IPY surge activity, sharing gear, specialists, and excavation staff for inter-comparability, 3) Involve local communities in the research effort and aid them in making inter-island connections which will aid their own outreach efforts, 4) Engage US and international students at high school, undergraduate, and graduate level in fieldwork and in the development of K-12 classroom materials. Dept. of Geography and Geosciences, The University of St. Andrews, Scotland, UK Dept. of Archaeology, Durham University, UK Dept. of Archeological Sciences, University of Bradford, UK Greenland National Museum and Archives National Museum of Denmark National Museum of the Faroe Islands Institute of Geography, University of Edinburgh, Scotland, UK Archaeology, University of Iceland School of Biological and Environmental Sciences, University of Stirling, UK ICSU: 17 0732787 University of Alaska Fairbanks IPY: Documentation of Alaskan and Neighboring Languages 18 This project centers on definitive documentation in the form of dictionaries and/or grammars of ten endangered northern languages in or near Alaska. These belong to four families: Athabaskan-Eyak-Tlingit, Tsimshianic, Eskimo-Aleut, and IndoEuropean (Kodiak Russian Creole). Four are at the very brink of extinction: Southern Tsimshian, has one speaker, age 94 ; Eyak, one speaker, 88; Kodiak Russian Creole perhaps 5 speakers, average age 90; Attuan Aleut, one rememberer, 80. The rest range in viability from Han Athabaskan, with perhaps 9 speakers, youngest in sixties, to Central Alaskan Yupik, still with children speakers in perhaps 15 of 67 villages. The 10 linguists are all proven senior scholars in their field. Their experience in the languages or language families averages almost 40 years, one being a native speaker of her North Slope Inupiaq, Edna Ahgeak MacLean. In most cases this project will enable these scholars to finish work which is the result of a lifetime or decades of work, based in every case on all previous documentation of the language and their own fieldnotes. The intent is to produce comprehensive documentation, both grammar and lexicon (with priority on lexicon)-- unless either is otherwise already available, or possible at a later point, or available at least for a closely related dialect or language. The languages are in Alaska, Canada, and Russia; the scholars are based in Canada (Ritter, Tarpent), Russia (Kibrik, Golovko), Japan (Miyaoka), the rest in the U.S. Listing follows: ▪Han Athabaskan, Willem de Reuse, mostly lexicon; ▪Upper Kuskokwim Athabaskan, Andrej Kibrik, lexicon and grammar; ▪Eyak, Michael Krauss, lexicon and grammar; ▪Tlingit, Jeff Leer, lexicon; ▪Southern Tsimshian, Marie-Lucie Tarpent, lexicon and grammar; this divergent form of Tsimshianic, recognized only since the 1970s, is especially important for comparative purposes. The work will proceed in a comparative framework, including Macro-Penutian; ▪North Slope Inupiaq, Edna Ahgeak MacLean, lexicon; ▪Central Alaskan Yupik, Osahito Miyaoka, grammar; ▪Central Siberian Yupik, Steven Jacobson, lexicon; an extremely important data source, the card-file of N. M. Emel?ianova, will be processed in St. Petersburg for this; ▪Alutiiq, Jeff Leer, lexicon; ▪Kodiak Russian Creole, Evgenii Golovko; virtually no documentation yet exists; it remains unclear how far it diverges from Ninilchik or Kenai Russian Creole; it was natively spoken on Afognak Strait until the earthquake and tsunami of 1964; ▪Atuuan Aleut, Evgenii Golovko; another exceptional situation; 12 phonograph cylinders of text (ca. 30 minutes) recorded in 1909 by Jochelson still need to be transcribed, of which 7 are chanted ? the only instance of such attested in this part of the world; Golovko will work with Moses Dirks and John Golodoff, raised on Attu 1927-1942, to transcribe them; ▪Alaska-Yukon Border Athabaskan (Han, Kutchin, Tanacross, Upper Tanana), John Ritter; to provide an account of especially complex tone movement or assimilation in this area, necessary even for text orthography and pedagogy. All subprojects of course involve participation of native speakers of these 19 communities, and are recognized there as vital to the future of each of the languages. Russian Academy of Sciences and Moscow State University, Russia European University at St. Petersburg, Hertzen Pedagogical University St. Petersburg, Russian Academy of Sciences, Russia Osaka Gakuin University, Japan Mount Saint Vincent University , Halifax, Nova Scotia, Canada ICSU: 0732665 and 0732822 Saito, Mak (Woods Hole Oceanographic Institution) Allen, Andrew (The Institute for Genomic Research) Collaborative Research in IPY: Comparative Genomic and Proteomic Survey of Major Antarctic Marine Phytoplankton: A Foundation for Polar Phytoplankton Genomics The application of molecular tools to polar phytoplankton and biogeochemical studies has been hindered thus far by the lack of sequence data. The research will create a foundation for polar marine phytoplankton genomics and proteomics by surveying three of the major phytoplankton species found in Antarctic waters, using primarily expressed sequence tags libraries (EST). These expressed sequence tag libraries will be developed under environmentally relevant conditions, in particular under iron limitation, to improve gene models of key genes involved in important polar biogeochemical processes. The P.I.’s will work with a freelance journalist and National Public Radio reporter to develop a series of stories for distribution in local and national radio markets. In addition, a high school teacher will be hosted at TIGR. A polar genomics module will be developed for the Venter Institute’s mobile outreach laboratory: DISCOVER GENOMICS! Finally, the proposed EST sequencing and bioinformatic data management program will be synergistic and collaborative with the European Union funded functional genomics DIATOMICS project that involves laboratories from 5 European countries and Israel. Centre National de la Recherche Scientifique (CNRS), France EU DIATOMICS project ICSU: 0733033 Wayne, Robert K (University of California Los Angeles) (with Marco Musiani and John Novembre) IPY: Genomic-Scale SNP Genotyping of the Arctic Wolf: Ecology and Adaptation over Space and Time The era of the genome has arrived and environmental applications of technology that have emerged from this effort are numerous. New molecular technology resulting from the federally funded dog genome project will be applied to questions about genetic diversity and adaptation of gray wolves, a close relative of the dog. The utility of past genetic studies of wolves has been limited to only about ten molecular markers and DNA sequence data from but one gene. The new 127,000 marker dog genotyping chip can be used on wolves, providing far more information on genetic diversity and migration 20 patterns than previous studies. Critically, some of these markers are located near genes that affect adaptation and thus may permit the discovery of genes that influence function and the response of wolves to environmental change. Genetic variation in gray wolves will be characterized from six genetically defined populations across the Arctic to assess genetic diversity and how it corresponds to environmental and phenotypic variation. Further, how these genes have changed in the past as a result of climate fluctuations will be studied by genetic analysis of ancient wolf remains. Previous research on such ancient specimens has revealed dramatic population turnover and the extinction of a unique form of North American wolf. This study will be one of the first to apply high-throughput SNP genotyping chips to natural populations and will provide new analytical tools for such analyses. This project should reveal ecologically and genetically important regions of the wolf genome, and yield insights into how environmental change has shaped variation in the genome through time. The unique historical and spatial scale of our analysis will improve our understanding of how climate change can affect genetic variation in general and identify populations under the greatest threat. Environmental Design, University of Calgary, Canada Center for Bioinformatics, University of Copenhagen, Denmark Dept. of Biological Sciences, University of Alberta, Canada ICSU: 21