The present study evaluates the performance of NASA's Modern-Era Retrospective Analysis for Research and Applications Aerosol Reanalysis (MERRAero) over Indian cities by validating its PM2.5 concentrations (reconstructed using individual species concentrations) against that of the real-time hourly observations. The study period of the present analysis is between 2013 and 2015. Several performance statistics (mean bias, mean absolute bias, mean fraction, correlation coefficient, FAC2) are derived for the assessment, which was carried out on various temporal scales.
(*B. Mahesh, B.V. Rama, B. Spandana, M.S.S.R.K.N. Sarma, and K. Niranjan are other authors of this paper.)