03338nam a2200409 4500 20260818214058.0 280998s1989 th r 0000|0 eng d .b10603499 AIT Thesis no. ET-89-03 Islam, Md. Rafiqul Simulation of NOAA-AVHRR-APT data for insolation estimation using GMS-VISSR-HRFAX data Bangkok : Asian Institute of Technology, 1989 85 p. + 1 online resource Thesis ; no. ET-89-3 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering Thesis (M.Eng.) - Asian Institute of Technology, 1989 A theoretical investigation has been conducted through the method of simulation to study the applicability of the Automatic Picture Transmissions (APT) of NOAA polar orbiting weather satellite for insolation estimation. Simulated data equivalent to NOAA-AVHRR-APT near infrared band data have been produced from GMS-HRFAX visible images, which are then used to determine the "cloudiness" of the atmosphere. The "cloudiness" is a measure of cloud cover over a target on the earth's surface affecting incoming solar radiation. "Cloudiness" shows a linear correlation with atmospheric transmissivity of solar radiation under some simplified assumptions. When global solar radiation has been estimated from a very simple linear model, and compared with that actually measured at ground by pyranometer, a good agreement between them has been found with average standard errors of estimate 16.4% and 11% of measured means for hourly and daily estimations respectively. In a cross test between two different seasons by estimation for one season using model of the other season, the r.m.s errors of estimate were found to be less than 22% and 19% of measured means for hourly and daily estimations respectively. The improvement in the assumptions used for simplification of the model will improve the accuracy of estimation. It has been found that APT data are theoretically feasible for insolation estimation. Finally, an operational coverage of radiation mapping APT data. Solar radiation Simulation Exell, R.H.B., Chairperson Mohanty, Brahmanand, Examination committee Lukens, J.E., Examination committee Government of France, Scholarship donor Asian Institute of Technology. Thesis ; no. ET-89-3 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B17667 .b10603499 mnait x 240410 2 951012 m a x 0 mnait mnait mnarc 20 40 Barcode : 30050003105011 CREATED : 1995-10-15 RECORD # : i10764197 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050003105003 CREATED : 1995-10-15 RECORD # : i10764203 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120344576 CREATED : 2016-06-15 RECORD # : i13039945 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 107171 107171 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. ET-89-03 30050003105011 2026-08-18 21:40:58 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. ET-89-03 30050003105003 2026-08-18 21:40:58 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. ET-89-03 30050120344576 2026-08-18 21:40:58 2026-08-18 40