EXCESSIVE FERTILIZER USAGE DRIVES AGRICULTURE GROWTH BUT DEPLETES WATER QUALITY

The present study investigated the space–time variability of XCH₄ over coal fields, power plants, and wetlands using long-term GOSAT and S5/TROPOMI data.  The XCH4 variability associated with the heterogenous sources present in the south Asian (India) region and their implications for atmospheric XCH4 concentrations were evaluated. The CH₄ concentrations were mapped against the emissions in the agro-climatic zones, and a statistically high correlation was found in the Indo-Gangetic Plain region.

Present study retrieved improved dry column averaged concentrations of CO2, CH4, CO and N2O using Solar Spectra over the Shadnagar region of India using GFIT model. It is the only site which is equipped with FTIR 125M for measuring the solar spectra to retrieve the precise column GHG while meeting the TCCON standards. Present study also attempted preliminary validation of satellite retrieved column averaged concentrations of CO2 and CO against ground-based FTIR retrieved concentrations.