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Research Week 2009‐2010 University of Mauritius A Sookun, R Boojhawon, SDDV Rughooputh 1 What and Why? Definitions… A carbon budget is a set amount of carbon that can be emitted in a given amount of time, either by the whole economy, or a pre-selected sub-population or set of activities The carbon footprint is a measure of the impact human activities have on the environment in terms of the amount of GHG’s produced, measured in tonnes of carbon dioxide (CO2). A Sookun, R Boojhawon, SDDV Rughooputh 2 What and Why? Problem statement… As climate change becomes more and more a central issue in local, national, and international discussions, understanding the global carbon budget, and how it influences trends in global warming, will become increasingly crucial. Mauritius has undergone various structural changes as reflected by its land use characteristics and the various production and consumption patterns as more developments are ongoing and the need for transportation What, how and where in the local context, contributes to climate change through carbon emissions and removals. A Sookun, R Boojhawon, SDDV Rughooputh 3 Aims To show how Geographical Information System (GIS) and Geo-Statistics can provide methods to look at dispersion of air emissions and its receptors that are human beings and the environment, particularly the vegetations that act as sinks. Develop GIS systems and Models to estimate the carbon emissions and removals within the different land use categories of Mauritius Explore possibilities to mitigate climate change processes through simulated projects involving avoided emissions or natural carbon sequestrations A Sookun, R Boojhawon, SDDV Rughooputh 4 Specific objectives Understand the processes responsible for adding carbon (sources) to the atmosphere and for removing it (sinks) Study of Land Use patterns Map the sources and sinks of GHG’s Develop the appropriate method to calculate the emissions and removals of GHG’s at the level of ground details such as roads, rivers built-up areas, forestry and agriculture Develop models A Sookun, R Boojhawon, SDDV Rughooputh 5 Coverage of Research Carbon budget should cover all Mauritian greenhouse gas, BUT mainly carbon dioxide, emissions/removals within the mainland Carbon footprint should depict ‘responsibility’ of various geographic areas (land categories) as well as socio-economic sectors, by indicating respective emission/removal rates of carbon A Sookun, R Boojhawon, SDDV Rughooputh 6 The Carbon Cycle Source: Annual Review of Earth and Planetary Science, 2007 A Sookun, R Boojhawon, SDDV Rughooputh 7 Literature Survey Inter-governmental Panel on Climate Change (IPCC) fourth assessment report 2007 Understanding the Global Carbon Budget, Richard Houghton, Senior Scientist, Carbon Research, 2007 National Air Emission Inventory (NAEI) – UK, 2008 Carbo Euro GHG Project 2003 New Zealand Carbon Budget Project 2005 Mind Map A Sookun, R Boojhawon, SDDV Rughooputh 9 Materials and Methods The use of extrapolation methods such as krigging in geostatistics has been applied to generate contour maps of pollution levels. Application of GIS to study land use patterns in Mauritius Sampling techniques and surveys to collect geographical, household, business and scientific data to estimate both the ‘direct’ and ‘embedded’ carbon emission attributable to household and business consumptions; IPCC based methods will be used in calculations. Other approaches include on line calculators A Sookun, R Boojhawon, SDDV Rughooputh 10 Methods The calculations are based on the following equation: = Σ ij ij E A F , where E: Emission of pollutant; A ij : Activity statistic, i.e. amount of fuel burnt; F ij : emission factor, i.e. emission per unit of fuel burnt, i: fuel type and j: fuel combustion plant or site. A Sookun, R Boojhawon, SDDV Rughooputh 11 Methods Let i i i i X X X 1 2 3 4 , , denote the average of the amount of emissions for , SO2, CO, and NOx over the seven period respectively for the ith sample point (13 locations with no missing values) over the island which is standardised standardise as follows For each set of standardised data, we develop layers in the form of indices, ji A combined layer is then developed for the ith location, using the index, i I , A Sookun, R Boojhawon, SDDV Rughooputh 12 GIS Source:InWent, Germany A Sookun, R Boojhawon, SDDV Rughooputh 13 Data sources • Household and Business surveys, micro-data – Available for researchers, upon request from Central Statistics Office CEB – fuel used for electricity generation AREU/Min.of Housing/MSIRI: Land use patterns Forestry Satellite Data Others A Sookun, R Boojhawon, SDDV Rughooputh 14 Satellite Image Landsat satellite image of Mauritius, 2000 (Source: Global Land Cover Facility) A Sookun, R Boojhawon, SDDV Rughooputh 15 Outcomes Visual display of sites or regions where air pollutants are destined and where monitoring programs need to be improved. GIS maps of regional carbon budget and carbon footprint A Sookun, R Boojhawon, SDDV Rughooputh 16 Land Use Patterns Source: Prof SDDV Rughooputh A Sookun, R Boojhawon, SDDV Rughooputh 17 CO2 Emissions Trend, Mauritius, 1970 – 2006 (Data Source: J.Baguant , Energy Data Book 1988) CO2 emissions, Mauritius, 1970 - 2006 3500.00 CO2 em issions 3000.00 2500.00 2000.00 1500.00 1000.00 500.00 2006 2004 2002 2000 1998 1996 1994 1992 1990 1988 1986 1984 1982 1980 1978 1976 1974 1972 0.00 1970 CO2 emissions, tons 4000.00 Year A Sookun, R Boojhawon, SDDV Rughooputh 18 CO2 emissions by sector , Mauritius, 2000 – 2006, Source: Central Statistics Office A Sookun, R Boojhawon, SDDV Rughooputh 19 Some Results Map for CO2 Emissions A Sookun, R Boojhawon, SDDV Rughooputh 20 Map for SO2 Emissions A Sookun, R Boojhawon, SDDV Rughooputh 21 Map for CO Emissions A Sookun, R Boojhawon, SDDV Rughooputh 22 Map for Combined Emissions Using Composite Index 23 A Sookun, R Boojhawon, SDDV Rughooputh On-Going and Future works Road traffic emissions Statistical modelling and Spatio-temporal modelling Processing of Satellite data Development of Carbon budget Models Development of carbon offset strategies for scenario analysis that will complement policy related work; Development of a robust understanding of the links between lifestyles, societal values and the environment. A Sookun, R Boojhawon, SDDV Rughooputh 24 Acknowlegement • TEC Sponsored MPhil/PhD Research @ UoM • Central Statistics Office CEB – fuel used for electricity generation A Sookun, R Boojhawon, SDDV Rughooputh 25 Contacts A. Sookun1: [email protected] R. Boojhawon1: [email protected] SDDV Rughooputh2: [email protected] 1 Department of Mathematics 2 Department of Physics Faculty of Science University of Mauritius A Sookun, R Boojhawon, SDDV Rughooputh 26