Atmospheric Gas

Atmospheric Gas products


Large amounts of gases(Rn, He ,CO, CH4, etc) emitted from the active fault zones before, during and after great earthquakes. With the development of hyperspectral remote sensing technology, the anomalous variations of some gases components in the atmosphere have been retrieved with the hyperspectral remote data. We provide atmospheric gas(CH4,CO,O3) 8-days/monthly/yearly background data and their image products-average background (1 degree and 1 degree spatial resolution) over Asian-Pacific region from 2017. Atmospheric gas satellite data from the AQUA Atmospheric Infrared Sounder (AIRS) were used for study. It was obtained from the NASA satellite data Earth Sciences Data and Information Services Center (DISC) (http://disc.gsfc.nasa.gov/AIRS/ index.shtml/).


For the CH4 product, we have use the Version 6 and Level 3 standard gridded product of 8-day/monthly CH4 volume-mixing ratios(the upper middle troposphere 300 hPa, approximately 7 km) in a descending model (local night-time), with 1 degree * 1 degree of spatial resolution.


For the CO product, we have use the Version 6 and Level 3 standard gridded product of 8-day/monthly CO volume-mixing ratios(500 hPa) in a descending model (local night-time), with 1 degree * 1 degree of spatial resolution. Because the peak sensitivity of the AIRS retrieval to carbon monoxide occurs at 500 hPa. The total column values reported for CO constituents are dominated by the initial guess of each and should not be used for research purposes.


For O3, we have use the Version 6 and Level 3 standard gridded product of 8-day/monthly Total O3 column product in a descending model (local night-time), with 1 degree * 1 degree of spatial resolution.