[1]. Alam, K., Trautmann, T., Blaschke, T., 2011, Aerosol Optical Properties and radiative forcing over mega city Karachi. Journal of Atmospheric Research, doi: 10.1016/ j.atmosres.2011.05.007.
[2]. Alpert, P., Kaufman, Y.J., Shay-El, Y., Tanre, D., da Silva, A., Schubert, S., Joseph, J.H., 1998, Quantification of dust-forced heating of the lower atmosphere, Nature 395, 367–370.
[3]. Chu, D., Y. Kaufman, C. Ichoku, L. Remer, D. Tanré, and B. Holben, 2002, Validation of MODIS aerosol optical depth retrieval over land,Geophysical Research Letters, 29, 8007, doi:10.1029/2001/GL013205.
[4]. Chu, D.A., Kaufman, Y.J., Zibordi, G., Chern, J.D., Mao, J., Li, C., Holben, B.N., 2003, Global monitoring air pollution over land from the earth observing systemterra moderate resolution imaging spectroradiometer (MODIS), Journal of Geophysical Research 108, D21, doi:10.1029/2002JD003179.