Journal of Geo-information Science >
Spatial and Temporal Distribution Characteristics of CO2 Column Concentration in China from 2009 to 2010
Received date: 2013-05-23
Revised date: 2013-10-20
Online published: 2014-03-10
Data adopted was the official near the ground surface (975hPa) CO2 concentration L4B retrieval data products of GOSAT-the world's first Greenhouse Gases Observing Satellite "Breathing No." - with a passive infrared detector (TANSO) from June 2009 to May 2010, which was jointly developed by Japan Aerospace Exploration Agency (JAXA), Japanese Environment Agency (MOE) and the Japan Institute for Environmental Studies (NIES). Based on the ArcGIS Geostatistical Analytical Method, authenticity inspection was processed by comparing the data mentioned above with the ground observation data of the Global Atmospheric Background Station (Waliguan), in order to analyze Chinese CO2 concentration spatial and temporal variations near the ground surface. The results show that: (i) Chinese CO2 concentration near the ground surface is concentrated and has a high value in the East, a low value in the West; (ii) Chinese CO2 concentration has an obviously seasonal variation characteristic that monthly average concentration has a largest amount in April (spring) and a smallest in July (summer); (iii) Combining with 2009 Chinese population density, total energy consumption (coal), GDP and other auxiliary data from the China Statistical Yearbook 2012, we find that the reasons of Chinese CO2 spatial and temporal distribution near the ground surface are various, and cannot be attributed easily to human or nature.
Key words： CO2; near the ground surface; GOSAT; spatial and temporal distribution
ZHAO Jing, CUI Weihong . Spatial and Temporal Distribution Characteristics of CO2 Column Concentration in China from 2009 to 2010[J]. Journal of Geo-information Science, 2014 , 16(2) : 207 -213 . DOI: 10.3724/SP.J.1047.2014.00207
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