Abstract
Carbon dioxide (CO2) is one of the most important greenhouse gases; its concentration and distribution have important implications on climate change. The El Ni?o Southern Oscillation (ENSO) is the Earth’s strongest climate fluctuation on inter-annual time scales and has global impacts. However, to date, there is no research on how ENSO affects the spatial distribution of CO2 concentration. In this study, we used spatial CO2 data from the ENVIronmentSATellite (ENVISAT) and the Greenhouse Gases Observing Satellite (GOSAT), the long duration monthly mean atmospheric CO2 from Mauna Loa Observatory, Multivariate ENSO Index (MEI) from Earth System Research Laboratory to analyze the way that ENSO affects spatial distribution of CO2 concentration in South America, which is affected by ENSO seriously. Our research revealed that monthly CO2 growth rate has a moderate, positive correlation relationship with MEI. We used geostatistics to predict and simulate the spatial distribution of CO2 and found that in south of 12°S, CO2 concentration of ENSO warm episode is lower than the one of ENSO cold and neutral episodes. ENSO impacts CO2 spatial distribution mainly in November, December, January and February; moderate-high concentration zone of ENSO warm episode more concentrates in the northern part of South America.
Highlights
Climate change is one of the great challenges of the 21st century [1], Carbon dioxide (CO2) is the most importantHow to cite this paper: Sun, Z.Y., Wang, X.F., Tani, H., Zhong, G.S. and Yin, S. (2016) Spatial Distribution of CO2 Concentration over South America during El Niño Southern Oscillation (ENSO) Episodes by Using Gases Observing Satellite (GOSAT) Data
This study explored the spatial distribution of CO2 concentration of different ENSO episodes and predicted the uncertainty distribution of CO2 concentration in this El Niño which started in 2015, by using the distribution changes of CO2 concentration in recent event, and explored the CO2 concentration and distribution change during ENSO episode at a large spatial scale
South America as one of zones most influenced by ENSO event was selected as the study area
Summary
Climate change is one of the great challenges of the 21st century [1], Carbon dioxide (CO2) is the most importantHow to cite this paper: Sun, Z.Y., Wang, X.F., Tani, H., Zhong, G.S. and Yin, S. (2016) Spatial Distribution of CO2 Concentration over South America during ENSO Episodes by Using GOSAT Data. Climate change is one of the great challenges of the 21st century [1], Carbon dioxide (CO2) is the most important. Global temperatures in 2015 were the warmest on record, according to data published by meteorologists in the UK and US [8]. According to the Earth’s CO2 Home, the average global carbon dioxide (CO2) concentration in December 2015 was 401.85 ppm, which is 3 ppm greater than in December 2014 [9]. ENSO can affect global average temperatures; for example, in 1998 temperatures were significantly enhanced by strong El Niño conditions. 1998 remained the warmest year until 2005 and 2010 and the temperature of both of these years was enhanced by El Niño periods. The large margin by which 2015 is the warmest year is attributed to another strong El Niño. The only El Niño events in NOAA’s 1950-2015 database comparable in strength to the one developing occurred in 1982-1983 and 1997-1998 from the records ONI and MEI
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
