Analysis of sensors to detect the planetary boundary value of atmospheric aerosol loading caused by anthropocentric activities.

As per Rockstrom, many thresholds have been crossed by the anthropocentric activities. These thresholds are called as planetary boundaries. The atmospheric aerosol loading is one of the thresholds, but its proper value is not determined entirely. This paper firstly explains the social and scientific reasons and later on analyses various technologies that can detect the aerosol loadings. One of the technology being NASA’s MODIS (Moderate Resolution Imaging Spectroradiometer) on Terra and Aqua satellites. The recent finding from this sensor has suggested that there is a decrease in atmospheric aerosol loading in North American Monsoon and so on. The variation of the atmospheric aerosol loading over various areas has also been discussed so that its impact on the climate is understood.