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005 20260818214058.0
008 280998s1989 th r 0000|0 eng d
035 _a.b10603499
099 9 _aAIT Thesis no. ET-89-03
100 1 _aIslam, Md. Rafiqul
245 1 0 _aSimulation of NOAA-AVHRR-APT data for insolation estimation using GMS-VISSR-HRFAX data
260 _aBangkok :
_bAsian Institute of Technology,
_c1989
300 _a85 p. +
_e1 online resource
490 1 _aThesis ;
_vno. ET-89-3
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering
502 _aThesis (M.Eng.) - Asian Institute of Technology, 1989
520 _aA 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.
650 0 _aSolar radiation
_xSimulation
700 1 _aExell, R.H.B.,
_eChairperson
700 1 _aMohanty, Brahmanand,
_eExamination committee
700 1 _aLukens, J.E.,
_eExamination committee
710 2 _aGovernment of France,
_eScholarship donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. ET-89-3
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B17667
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