Author(s)

Ali Madad, Mossayeb Jamshid, Ali Reza Gharagozlou, Ali Reza Vafaei Nejad, Ali Javidane, Hamid Reza Ranjbar

Department of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Department of GIS/RS, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Department of Science/Florida Southern College, Lakeland, Florida, USA.
Faculty of Civil and Passive Defense, Malek Ashtar University of Technology, Tehran, Iran.
Surveying and Geomatics Group, Engineering Faculty, Tehran University, Tehran, Iran.
Surveying Department, National Cartographic Center, Tehran, Iran.

Global warming and climate change are the most important ecological issues of our time. The most well-known factor in this phenomenon is the redundancy of carbon dioxide in the atmosphere. Over the past 50 years the amount of residual CO₂ in the atmosphere has risen from 40% to 45%. Reducing CO₂ redundancy requires precise knowledge of the gas sources and sinks throughout the atmosphere. Despite having a leading role in residual gas levels of atmosphere, the diagnosis and types of changes of absorbing carbon dioxide are very much in doubt. Atmospheric measurements of CO₂ concentrations are highly precise and provide a reliable measure of increase of CO₂ in the atmosphere every year but they do not lead to the location of sources and sinks. Studies about understanding CO₂ cycles began mainly around 1990 and most of these studies have been focused on non-spatial analysis. By ignoring the spatial effects, an important property such as closeness (adjacent) has been disregarded. The emission sources of gas are stronger than their sink sources i.e., whenever a sink is adjacent to a strong emission source, the measurements will show a massive existence of CO₂ gas in that region although there exists a fine CO₂ gas sink at below. Using the global measurements of CO₂ and applying spatial analysis approach to “Leave One Out” method, our studies reveal the most probable spots of CO₂ sources and sinks and that Negev Desert in Middle East is a distinguished CO₂ sink region.

Carbon Dioxide Sink, Spatial Autocorrelation, Interpolation, Jackknife, Negev Desert

Madad, A. , Jamshid, M. , Gharagozlou, A. , Nejad, A. , Javidane, A. and Ranjbar, H. (2014) Spatial Analysis Approach in Revealing the Global Sinks of Atmosphere Carbon Dioxide through “Leave One Out” Method. Journal of Geographic Information System, 6, 286-297. doi: 10.4236/jgis.2014.64026.