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C R Y O S P H E R I C
R E S E A R C H
S I N C E
CONTENTS
NOTES
FWinter 2008
Conference News
Products & Services
Citing NSIDC Data
Contact Information & Submissions
ISSUE NO. 62
NSIDC NEWS
Nobel Peace Prize Honors Climate Change
Experts: NSIDC Scientists Contribute to
Winning Effort
The 2007 Nobel Peace Prize was awarded to the Intergovernmental
Panel on Climate Change (IPCC) and to former U.S. Vice President Al
Gore for informing the world about the important issue of humancaused climate change. NSIDC scientists were among the many experts
who contributed to the IPCC's efforts.
The Nobel committee recognized the IPCC reports on climate change
as significantly contributing to worldwide understanding of this issue.
The IPCC reports represent a unique scientific collaboration on a globally important topic; thousands of experts in their scientific fields compiled the reports under the direction of the IPCC. The reports,
released in 2007, discuss the physical science; impacts, adaptations,
and vulnerability; and mitigation of climate change.
NSIDC involvement was particularly strong concerning the science
behind global warming—the causes, observations, and future projections at the foundation of the discussion. NSIDC Director Roger
Barry served as a Review Editor, and Senior Scientist Tingjun Zhang
served as a Lead Author for Chapter 4: “Observations: Changes in
Snow, Ice and Frozen Ground”. Barry is an Arctic climatologist and
has led NSIDC since its founding in 1976. Zhang, a frozen ground
and permafrost expert, has been with NSIDC for eleven years.
Contributing authors from NSIDC included scientists Oliver Frauenfeld, Bruce Raup, and Andrew Slater. Additional contributors were
from NSIDC scientists Richard Armstrong, James McCreight, Walt
Meier, Ted Scambos, and Mark Serreze. The awarding of the Nobel
Peace Prize to the IPCC and to Mr. Gore has given NSIDC a renewed
sense of the importance of our work in climate science. We offer our
congratulations to the thousands of international experts to whom
this honor belongs.
For more information, visit the Nobel Foundation's online summary
at http://nobel prize.org/nobel_prizes/peace/laureates/2007/
speedread.html. Read the IPCC's official response to the prize at
http://www.ipcc.ch/press/prpnp12oct07.htm
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http://nsidc.org
Atmospheric Science Librarians International
Honorable Mention Award
Atmospheric Science Librarians International (ASLI) selected the book
Global Outlook for Ice & Snow as 2007 ASLI's Choice - Honorable Mention in the Scientific and Technical category for making complex science understandable for the general audience. Dr. Roger Barry was the
lead author for Chapter 4, Snow..
NSIDC Seeks New Director
The Cooperative Institute for Research in Environmental Sciences (CIRES), NSIDC’s host institute has announced the
search for a new Director of NSIDC. Dr. Roger Barry, the current Director, intends to step down this year, and the University of Colorado (CU) and CIRES have started the search for
a replacement. The position is a tenured faculty position at CU
Boulder. Details and position requirements may be found at
the CIRES Web site: http://cires.colorado.edu/jobs. Dr. Barry
will remain as a CU faculty member and research scientist, on
a half-time basis.
Former Vice President Al Gore Visits NSIDC
NSIDC hosted former U.S. Vice President Al Gore for a private
science briefing, 3 October 2007, at the request of Mr. Gore.
CIRES Director and Greenland ice sheet expert Konrad Steffen
and NSIDC Director and Arctic climatologist Roger Barry hosted
the briefing at NSIDC on the University of Colorado at Boulder
campus. After brief presentations concerning the latest scientific
research on Arctic sea ice, snow, glaciers, permafrost, and ice
sheets, an extensive and lively discussion with NSIDC research
scientists ensued. Mr. Gore expressed interest in Arctic sea ice,
permafrost, and climate interactions, as well as changes occurring
in our planet’s cold regions. He also encouraged NSIDC scientists
and the larger climate science community to be direct about their
research results. NSIDC was honored to host the former Vice
President to discuss our research. For press inquiries, contact
Stephanie Renfrow at [email protected] or +1 303.492.1497.
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CONFERENCE NEWS
NSIDC Scientist Discusses Sea Ice at AGU
Nye Lecture
On behalf of the American Geophysical Union (AGU) Cryospheric
Focus Group, NSIDC Senior Scientist Mark Serreze delivered the Nye
Lecture at the 2007 Fall Meeting in San Francisco. Following is an
adaptation of geophysicist Ray Pierrehumbert’s RealClimate.org synopsis of the talk.
It was probably around the year 2000 when Mark had an epiphany. A
realization, after years of sitting on the fence, that the changes unfolding in the Arctic were too persistent, and too coherent among different
parts of the system, to be simply dismissed as natural climate fluctuations. Seven years have passed, and despite imprints of natural variability, the Arctic has continued along a warming path.
What changed Serreze's mind? Improvements in climate models made
it easier to see the anthropogenic component of climate, as did a few
more years of the anthropogenic global warming signal rising above
the background variability. This was true not just for global means, but
also for regional climate. More importantly, there has been persistent
warming and sea ice retreat despite circulation changes.
Since 2005, alone, we have seen a 25 percent decline in Arctic sea ice
at the time of the fall minimum, equal to the combined area of Texas
and California. What is more, the drop in 2007 was greatly below the
already steep trend line for 1978–2002. Serreze asked the question,
“Why?”. Factors contributing to the unusual 2007 drop include an
unusual pattern of atmospheric circulation, with high pressure over
the Central Arctic and low pressure over Siberia. He said that this
change in circulation brought a lot of warm air into the Arctic—and
over an ice pack that was already thin and vulnerable.
Serreze compared sea ice observations with simulated trends from the
Intergovernmental Panel on Climate Change Fourth Assessment Report Global Climate Models (GCM). The observed rate of ice loss was
much faster than expected. Even before 2007, the downward trend
was at least twice the GCM trend. The GCM simulations suggest that
40 percent of the sea ice loss was anthropogenically forced between
1953 and 2006, growing to 50 percent between 1979 and 2006. However, the evidence is strong that the models are underestimating the
sensitivity of the sea ice cover to greenhouse gas warming. Models are
getting better, he pointed out, but reality is exceeding expectations.
Serreze pointed next to a simulation from the National Center for Atmospheric Research (NCAR) Community Climate System model
(CCSM3). Of all the models examined, CCSM3 is one of the best
performers. One of the simulations from CCSM3 shows a gradual sea
ice decline until 2020, when a kick from natural variability causes a
sudden and near-total disappearance of the thinned sea ice in summer.
The state of sea ice thickness observed in spring 2007 was quite similar
to the modeled state in 2020, suggesting that rapid sea ice loss may be
imminent. Climate models have long shown that warming at the surface will be seen first and will be most pronounced over the Arctic
Ocean. Based on a detailed comparison of observed patterns of Arctic warming with GCM patterns including anthropogenic forcing, Serreze declared, “Arctic Amplification is here.” The simulated patterns
strongly agree with the observed patterns, both with regard to seasonal
cycle (warming is greatest in the cold seasons) and vertical structure
(warming is most pronounced near the ground).
Serreze pointed to some noticeable impacts of sea ice loss:
-A decline in prime polar bear habitat
-The Northwest Passage opened in fall 2007
-Greenland ice melt has accelerated
-Major vegetation changes are occurring in the Arctic
-Permafrost temperatures have increased.
In summary, Serreze stated that the emerging surprise was the rapidity
of change. In many ways, he said, it seems that reality has exceeded expectations and our vision of the Arctic's future is already upon us.
While climate models tell us that sea ice extent should be declining in
response to greenhouse gas loading, observed trends are actually much
steeper: current trends are perhaps 30 years ahead of schedule. The
signal appears to be firm and growing in strength—will 2007 be remembered as the tipping point for sea ice? He concluded, “Only time
will tell.”
* Reference: Raymond Pierrehumbert: Web Blog: Live (almost) from
AGU–Dispatch #2 (http://www.realclimate.org/ index.php/archives/
2007/12/live-almost-from-agu%E2%80%93 dispatch-2/)
NSIDC Researcher Wins 2007
AGU Young Investigators Award
A recent postdoctoral researcher from NSIDC won last year’s Young
Investigator Award from the American Geophysical Union (AGU).
Dr. Ian Howat accepted the award during the AGU Fall Meeting in
December 2007 in San Francisco. The AGU Cryospheric Focus
Group confers the award annually to recognize young scientists’ significant contributions to cryospheric science and technology. Howat
recently published work in the polar science special issue of Science
magazine with co-authors Ted Scambos, lead scientist at NSIDC, and
Ian Joughin of the University of Washington’s Applied Physics Lab.
The research revealed rapid changes in the dynamics of Greenland's
glaciers.
“This is really a testament to the support I’ve gotten, the shoulders
that I’ve stood on,” Howat said. He credits all his academic advisers for
“pointing me in the right direction and keeping me motivated.”
Howat’s undergraduate adviser was Eugene Domack of Hamilton College in New York. His doctoral adviser was Slawek Tulaczyk of the
University of California at Santa Cruz. Scambos of NSIDC and
Joughin of the University of Washington were his postdoctoral
advisers.
Howat is now an Assistant Professor at the Byrd Polar Research Center
at Ohio State University. He maintains research collaborations with
NSIDC, the University of Washington’s Applied Physics Lab, the University of California at Santa Cruz, the Institute of Arctic and Alpine
Research at the University of Colorado at Boulder, and Scripps Institution of Oceanography. He served as an NSIDC postdoctoral researcher from August 2006 to December 2007.
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PRODUCTS & SERVICES
NSIDC Metadata Now Accessible
Data set-level metadata are now available on NSIDC's Web site for all
data products. The catalog page for each data set now includes a "View
Metadata Record" link below the data set summary, which accesses a
dynamically-generated Web page with metadata that conform to the
Global Change Master Directory (GCMD) Directory Interchange Format (DIF) standard. Included on the page is a dynamic Google Map
that displays the spatial coverage for the data set. Current metadata
output options include DIF as well as U.S. Federal Geographic Data
Committee (FGDC) Content Standard for Digital Geospatial Metadata
(CSDGM) in either HTML, plain text, or Extensible Markup Language
(XML). For further help on using this utility, please see:
http://nsidc.org/cgi-bin/get_metadata.pl.
In addition, metadata for all of our holdings are now available in XML
files for both DIF and FGDC standards at the following FTP site:
ftp://sidads.colorado.edu/pub/DATASETS/metadata/. Updated on
a daily basis, these folders are provided to allow other organizations to
regularly harvest our metadata collection for inclusion in data discovery
and access portals.
EOS Data Gateway (EDG) Transition
In the Spring of 2008 NSIDC's EDG interface will be transitioned to
the Warehouse Inventory Search Tool (WIST) interface. Prior to this
transition, registered users will receive information by e-mail about the
new interface, including enhancements, changes, and registered user
migration.
ICESat/GLAS Product Updates
ICESat/GLAS Release-28 data are now available for the following
laser time periods. Some of these data were reprocessed, and some
were released for the first time.
Laser
Time Period
Status
Laser 1
Laser 2A
Laser 2B
Laser 3A
Laser 3B
Laser 3C
Laser 3D
Laser 3E
Laser 3F
Laser 3G
Laser 3H
2003-02-20 to 2003-03-21
2003-09-25 to 2003-11-18
2004-02-17 to 2004-03-21
2004-10-03 to 2004-11-08
2005-02-17 to 2005-03-24
2005-05-20 to 2005-06-23
2005-10-21 to 2005-11-24
2006-02-22 to 2006-03-27
2006-05-24 to 2006-06-26
2006-10-25 to 2006-11-27
2007-03-12 to 2007-04-14
Reprocessed
Reprocessed
Reprocessed
Reprocessed
First Release
First Release
Reprocessed
First Release
First Release
First Release
First Release
Release-28 includes all fifteen products, GLA01 to GLA15, though
not all products are available for all laser time periods. All Release-28
altimetry products contain an improved correction to the surface elevation for saturated returns, the saturation elevation correction. Release- 28 provides several additional enhancements, such as improved flags to aid users in data selection, and better descriptions of the
altimetry products.
For more information about Release- 28, see the ICESat/GLAS Data
Releases Web page: http://nsidc.org/data/icesat/detailed_ disclaimer.html. For ordering options, see the ICESat/GLAS Order Data
Web page: http://nsidc.org/data/icesat/order.html.
NEW AMSR-E Soil Moisture Validation Data Sets
Several ground soil moisture and satellite remote sensing data sets for
the Soil Moisture Experiment 2003 (SMEX03) campaign have recently
been made available at NSIDC. Documentation and data access for
these and all other SMEX data sets are available from the AMSR-E
Validation Data: Soil Moisture Web site (http://nsidc.org/data/
amsr_validation/soil_moisture/).
AMSR-E Daily SWE & 12.5 km Sea Ice
Time Series in Data Pool
The entire time series of AMSR-E/Aqua Daily L3 Global Snow Water
Equivalent (SWE) EASE-Grids (AE_DySno) and AMSR-E/Aqua
Daily L3 12.5 km Tb, Sea Ice Conc., & Snow Depth Polar Grids
(AE_SI12) data are now available on the NSIDC Data Pool. The data
sets span from 18 June 2002 to present. Data can be accessed using
the
Data
Pool
search
and
order
interface
(http://nsidc.org/data/data_pool/index.html) or directly from the
FTP site (ftp://n4ftl01u.ecs.nasa.gov/SAN/AMSA).Documentation
for these data sets is available on the AMSR-E Data Summaries Web
page (http://nsidc.org/data/amsre/data_summaries.html).
AMSR-E Level-2B Reprocessing
Reprocessing has begun on 12 December 2007 for the AMSR-E/Aqua
Level-2B Soil Moisture (AE_Land), Rain (AE_Rain), and Ocean
(AE_Ocean) products. Data are being reprocessed to Version 2 from
the start of the AMSR-E mission until the date the Version 2 Algorithm was implemented in forward processing for each product.
Data will be available via the Data Pool and the EOS Data Gateway
(EDG) as the products are reprocessed. Please see the AMSR-E Web
site (http://nsidc.org/data/amsre) for documentation, ordering options, and version information.
AVHRR Polar Pathfinder Twice-Daily 5km
EASE-Grid Composites
NSIDC has recently updated t the AVHRR Polar Pathfinder TwiceDaily 5km EASE-Grid Composites data set. This update extended
the time series to 30 June 2005. The data in this update is still considered Version 3. This update included:
-A change in filename to now include the platform (for example,
a14_s005_1996001_1400_albd.v3, where a14 =NOAA-14)
-Data beginning on day 2001060 are collected by AVHRR on
NOAA-16.
-A dual Channel 3 is now included for better cloud detection.
Channel 3A collects data during the day at 1.6 microns, and Channel 3B collects data during the night at 3.7 microns.
-Due to a problem with the NOAA-16 scan motor, all the channel
data is shifted sporadically between 2001 and 2005, causing the
channels to contain data from another channel; thus, the derived
parameters also contain errors during this time-period. See Table
12 in the Error Sources section of the data set documentation for
specific dates.
For additional information about this product update, see the product
Web page: http://nsidc.org/data/nsidc-0066.htm. If you have questions, please contact NSIDC User Services at [email protected].
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PRODUCTS & SERVICES
Nimbus-7 SMMR Pathfinder Daily EASEGrid Brightness Temperatures
NSIDC is changing distribution methods for the Nimbus-7 SMMR
Pathfinder Daily EASE-Grid Brightness Temperatures data. All of the
SMMR EASE-Grid data (1978-1987) are now available on FTP. The
FTP data are the same format as on the CD, but the file naming convention has changed. Details of the change are included in the documentation. The SMMR EASE-Grid data and documentation can
beaccessed from the product Web page: http://nsidc.org/data/
nsidc-0071.html.
Northern Hemisphere EASE-Grid Weekly Snow
Cover and Sea Ice Extent
NSIDC is pleased to announce that the Northern Hemisphere EASEGrid Weekly Snow Cover and Sea Ice Extent Version 3 data are now
available through 24 June 2007 via FTP.
The Northern Hemisphere EASE-Grid Weekly Snow Cover and Sea
Ice Extent Version 3 product combines snow cover and sea ice extent
at weekly intervals from 23 October 1978 through 24 June 2007, and
snow cover alone from 3 October 1966 through 23 October 1978. Sea
ice data were not available prior to 23 October 1978. This data set is
designed to facilitate study of Northern Hemisphere seasonal fluctuations of snow cover and sea ice extent. Data are provided in the
Northern Hemisphere 25 km Equal-Area Scalable Earth Grid (NSIDC
NL EASE-Grid).
Links to detailed documentation, browse animations, and FTP access
to this data set are at http://nsidc.org/data/nsidc-0046.html.
Satellite-derived 8-day Global Snow Water
Equivalent Data Released
NSIDC has released the Global EASE-Grid 8-day Blended SSM/I
and MODIS Snow Cover data set, suitable for continental- to hemispheric-scale seasonal fluctuations of Snow-Covered Area (SCA) and
Snow Water Equivalent (SWE). This data set comprises global, 8-day
SWE data from 2000 through 2007, enhanced with snow-covered area
derived from MODIS.
The new data set blends visible and microwave data at higher temporal
resolution (8-day) than NSIDC has offered before. It is our first SWE
product to make use of the SSM/I 85 GHz data to derive SWE in
areas with shallow snow, and it is our first snow cover product to be
released in netCDF format, specifically at the request of modelers.
Global SWE data are derived from the Special Sensor Microwave Imager (SSM/I) on the Defense Meteorological Satellites Program
(DMSP) and are enhanced with MODIS/Terra Snow Cover 8-Day
Level 3 Global 0.05 degree Climate Modeling Grid (CMG) data.
Produced in the 25-kilometer Equal-Area Scaleable Earth Grid
(EASE-Grid), the new product is unique in blending information from
both passive microwave and visible sensors on a global scale for the period when both types of sensor data are available. Periodic updates are
planned and will be made available on the NSIDC FTP site as new
data from both sources become available.
Further details are included in the full data set documentation, accessible from the product Web page http://nsidc.org/data/nsidc0321.html. Data
are free and available on anonymous FTP at ftp://sidads.colorado.edu
/pub/DATASETS/snow/nsidc0321v01/.
Global Monthly EASE-Grid Snow Water
Equivalent Climatology
NSIDC is pleased to announce that the Global Monthly EASE-Grid
Snow Water Equivalent Climatology are now available through May
2007 via FTP.
This data set comprises global, monthly satellite-derived Snow Water
Equivalent (SWE) climatologies. Global data are gridded to the Northern and Southern 25 km Equal-Area Scalable Earth Grids (EASEGrids). Global SWE is derived from the Scanning Multichannel
Microwave Radiometer (SMMR) and selected Special Sensor Microwave/Imagers (SSM/I). Northern Hemisphere data are enhanced
with snow cover frequencies derived from the Northern Hemisphere
EASE-Grid Weekly Snow Cover and Sea Ice Extent Version 3 data.
These data are suitable for continental-scale time-series studies of
snow cover and water equivalent.
Links to detailed documentation, the browse animations, and FTP
access to this data set are at http://nsidc.org/data/nsidc-0271.html.
Northern hemisphere (left) and zoomed area (right) example of shallow snow
algorithm improvement in the new blended SSM/I and MODIS snow cover data.
Standard NSIDC deep snow algorithm (top), with MODIS SCA area > 25%, (middle, note large areas with MODIS snow, but no deep snow), and with shallow
snow added in areas with MODIS SCA (bottom).
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PRODUCTS & SERVICES
AGDC
The Antarctic Glaciological Data Center (AGDC) NSIDC archives
and distributes Antarctic glaciological and cryospheric system data collected by the U.S. Antarctic Program. For more information, see:
http://nsidc.org/agdc/. The AGDC recently published the following
data collections:
Ablation Rates of Taylor Glacier, Antarctica
This data set provides glacier surface ablation rates for a network of
approximately 250 sites on Taylor Glacier for year 2003. For more information, see the product Web page: http://nsidc.org/data/nsidc0326.html
Surface Velocities of Taylor Glacier, Antarctica
This data set contains surface velocities of Taylor Glacier, Antarctica,
for the year 2003. The measurement period was roughly 12 months.
There are approximately 250 locations in this data set. For more information, see the product Web page: http://nsidc.org/data/nsidc-0324.html..
Stable Isotopes of Ice on the Surface of Taylor Glacier,
Antarctica
This data set contains Oxygen and Deuterium isotope ratios for approximately 980 sites on the surface of the ablation zone of Taylor
Glacier, Antarctica. For more information, see the product Web page:
http://nsidc.org/data/nsidc-0323.html.
Atmospheric CO2 and Climate: Taylor Dome Ice Core,
Antarctica
Using new and existing ice core CO2 data from 65 - 30 thousand years
before present, a new chronology for Taylor Dome ice core CO2 is established and synchronized with Greenland ice core records to study
how high latitude climate change and the carbon cycle were linked during the last glacial period. The new data and chronology should provide
a better target for models attempting to explain CO2 variability and
abrupt climate change. For more information, see the product Web
page: http://nsidc.org/data/nsidc-0315.html.
Atmospheric CO2 and Climate: Byrd Ice Core,
Antarctica
Using new and existing ice core CO2 data from 65 ∼ 30 thousand
years before present, a new chronology for CO2 is established and
synchronized with Greenland ice core records to study how high latitude climate change and the carbon cycle were linked during the last
glacial period. For more information, see the product Web page:
http://nsidc.org/data/nsidc-0314.html.
Antarctic Ice Cores: Methyl Chloride and Methyl Bromide
This data set is an analysis of methyl chloride (CH3Cl) and methyl
bromide (CH3Br) in Antarctic ice core samples. Investigators reported
mixing ratios of methyl chloride gas extracted from samples taken
from the South Pole Remote Earth Science and Seismological Observatory (SPRESSO) core, drilled as part of the International Trans
Antarctic Science Expedition (ITASE). For more information, see the
product Web page: http://nsidc.org/data/nsidc-0313.html.
NOAA@NSIDC
Sea Ice Charts of the Russian Arctic in Gridded Format,
1933-2006 Published
The Arctic and Antarctic Research Institute (AARI) in St. Petersburg,
Russia, produces ice charts for safety of navigation in the polar regions
and for other operational and scientific purposes. Chart coverage focuses on the Northern Sea Route. The charts were compiled from a variety of data sources, with heavy reliance on regular reconnaissance
flights for most of the series until 1992. The entire series, including
later charts that were produced entirely digitally, were converted to Sea
Ice Grid (SIGRID) and EASE-Grid in a joint AARI and NSIDC project. The data set consists of files for total ice concentration, as well as
partial concentrations for multiyear, first-year, new/young ice (ice
younger than first-year ice), and fast ice. Browse images are also available.
The record length of this sea ice chart series makes it especially valuable. The AARI record covers the Arctic warm period in the 1930s
and 1940s (a 20th century warm interval of comparable magnitude to
that of the 1990s), a cold period in 1960s and 1970s, and it precedes
the later rapid increase in atmospheric greenhouse gas concentrations.
In contrast, the satellite instrument sea ice record does not reliably
begin until 1978.
This data set replaces the data sets AARI 10-Day Arctic Ocean EASEGrid Sea Ice Observations, and the Russian Arctic charts on the Environmental Working Group Joint U.S.-Russian Arctic Sea Ice Atlas.
For more information, see the product Web page: http://nsidc.org/
data/g02176.html.
Seeking repeat photographs of glaciers
NSIDC is seeking Repeat Photographs of Glaciers to add to our Glacier Photograph Collection. The repeat photography should be of the
same glacier, taken from the same vantage point, and taken at the same
time of year many years apart. Photographs should meet the guidelines
listed on NSIDC's "Submitting Repeat Glacier Photographs" Web site.
Please see http://nsidc.org/data/glacier_photo/submission.html for
submission guidelines and policies.
Virtual Globes Updates
Visit our Virtual Globes site to see the latest updates which include a
new Google Earth (KMZ) file with sea ice images from 16 July
through 16 September 2007, leading up to the record Arctic sea ice
minimum. Even if you have seen our thousands of glacier photographs on Google Earth before, get our updated file with new Greenland and New Zealand glacier photographs. A new time series of the
Nordic Seas ice edge (monthly means) from 1967-2002 is also available. For more information and to download these files, please visit
our Virtual Globes Web site: http://nsidc.org/data/virtual_globes/
5
University of Colorado at Boulder
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder, CO 80309-0449
Non-Profit Org.
U.S. POSTAGE
PAID
Boulder, CO
Permit No. 257
NSIDC Notes
Winter 2008, Issue No. 62
CITING NSIDC DATA
Please acknowledge NSIDC as the source when you obtain data from
us. Refer to the data set documentation for suggested forms of acknowledgement and citation, or contact User Services for more information.
NSIDC also requests one reprint or the exact reference of any publication that was supported by data received from NSIDC. We also greatly
appreciate reprints of any publication related to snow and ice research,
for inclusion in the World Data Center Information Center collection.
to the scientific community, please contact User Services to discuss the
content, form, and size of the data set. A list of guidelines for submitting data in electronic format is available.
If you have published data that you wish to archive and make available
SUBSCRIPTION, SUBMISSION & CONTACT INFORMATION
For information about any of the products or services offered by
NSIDC, or to subscribe to NSIDC Notes, please contact User Services.
NSIDC welcomes the submission of short items from our readers that
are of interest to the cryospheric community. Please use the following
address to submit news items, publication notes, research notices, or
brief articles for publication in NSIDC Notes.
View back issues on the NSIDC Web site
(http://nsidc.org/pubs/notes/).
NSIDC User Services
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder, CO 80309-0449
Phone: +1 303.492.6199
Fax: +1 303.492.2468
E-mail: [email protected]
http://nsidc.org
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