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Methods of editing cloud and atmospheric layer affected pixels from satellite dataPractical methods of computer screening cloud-contaminated pixels from data of various satellite systems are proposed. Examples are given of the location of clouds and representative landscape features in HCMM spectral space of reflectance (VIS) vs emission (IR). Methods of screening out cloud affected HCMM are discussed. The character of subvisible absorbing-emitting atmospheric layers (subvisible cirrus or SCi) in HCMM data is considered and radiosonde soundings are examined in relation to the presence of SCi. The statistical characteristics of multispectral meteorological satellite data in clear and SCi affected areas are discussed. Examples in TIROS-N and NOAA-7 data from several states and Mexico are presented. The VIS-IR cluster screening method for removing clouds is applied to a 262, 144 pixel HCMM scene from south Texas and northeast Mexico. The SCi that remain after cluster screening are sited out by applying a statistically determined IR limit.
Document ID
19830007475
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Nixon, P. R. (Agricultural Research Service Weslaco, TX, United States)
Wiegand, C. L. (Agricultural Research Service Weslaco, TX, United States)
Richardson, A. J. (Agricultural Research Service Weslaco, TX, United States)
Johnson, M. P. (Agricultural Research Service Weslaco, TX, United States)
Date Acquired
September 4, 2013
Publication Date
November 1, 1982
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
E83-10103
NASA-CR-169679
NAS 1.26:169679
Accession Number
83N15746
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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