A multidisciplinary study of earth resources imagery of Australia, Antarctica and Papua, New Guinea
The author has identified the following significant results. A thirteen category recognition map was prepared, showing forest, water, grassland, and exposed rock types. Preliminary assessment of classification accuracies showed that water, forest, meadow, and Niobrara shale were the most accurately...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19750020417 2023-05-15T13:59:21+02:00 A multidisciplinary study of earth resources imagery of Australia, Antarctica and Papua, New Guinea Fisher, N. H. Unclassified, Unlimited, Publicly available Mar 1, 1975 application/pdf http://hdl.handle.net/2060/19750020417 unknown Document ID: 19750020417 Accession ID: 75N28490 http://hdl.handle.net/2060/19750020417 No Copyright CASI EARTH RESOURCES AND REMOTE SENSING E75-10352 NASA-CR-143154 1975 ftnasantrs 2019-07-21T11:12:40Z The author has identified the following significant results. A thirteen category recognition map was prepared, showing forest, water, grassland, and exposed rock types. Preliminary assessment of classification accuracies showed that water, forest, meadow, and Niobrara shale were the most accurately mapped classes. Unsatisfactory results, were obtained in an attempt to discrimate sparse forest cover over different substrates. As base elevation varied from 7,000 to 13,000 ft, with an atmospheric visibility of 48 km, no changes in water and forest recognition were observed. Granodiorite recognition accuracy decreased monotonically as base elevation increased, even though the training set location was at 10,000 ft elevation. For snow varying in base elevation from 9400 to 8420 ft, recognition decreases from 99% at the 9400 ft training set elevation to 88% at 8420 ft. Calculations of expected radiance at the ERTS sensor from snow reflectance measured at the site and from Turner model calculations of irradiance, transmission and path radiance, reveal that snow signals should not be clipped, assuming that calculations and ERTS calibration constants were correct. Other/Unknown Material Antarc* Antarctica NASA Technical Reports Server (NTRS) |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
EARTH RESOURCES AND REMOTE SENSING |
spellingShingle |
EARTH RESOURCES AND REMOTE SENSING Fisher, N. H. A multidisciplinary study of earth resources imagery of Australia, Antarctica and Papua, New Guinea |
topic_facet |
EARTH RESOURCES AND REMOTE SENSING |
description |
The author has identified the following significant results. A thirteen category recognition map was prepared, showing forest, water, grassland, and exposed rock types. Preliminary assessment of classification accuracies showed that water, forest, meadow, and Niobrara shale were the most accurately mapped classes. Unsatisfactory results, were obtained in an attempt to discrimate sparse forest cover over different substrates. As base elevation varied from 7,000 to 13,000 ft, with an atmospheric visibility of 48 km, no changes in water and forest recognition were observed. Granodiorite recognition accuracy decreased monotonically as base elevation increased, even though the training set location was at 10,000 ft elevation. For snow varying in base elevation from 9400 to 8420 ft, recognition decreases from 99% at the 9400 ft training set elevation to 88% at 8420 ft. Calculations of expected radiance at the ERTS sensor from snow reflectance measured at the site and from Turner model calculations of irradiance, transmission and path radiance, reveal that snow signals should not be clipped, assuming that calculations and ERTS calibration constants were correct. |
format |
Other/Unknown Material |
author |
Fisher, N. H. |
author_facet |
Fisher, N. H. |
author_sort |
Fisher, N. H. |
title |
A multidisciplinary study of earth resources imagery of Australia, Antarctica and Papua, New Guinea |
title_short |
A multidisciplinary study of earth resources imagery of Australia, Antarctica and Papua, New Guinea |
title_full |
A multidisciplinary study of earth resources imagery of Australia, Antarctica and Papua, New Guinea |
title_fullStr |
A multidisciplinary study of earth resources imagery of Australia, Antarctica and Papua, New Guinea |
title_full_unstemmed |
A multidisciplinary study of earth resources imagery of Australia, Antarctica and Papua, New Guinea |
title_sort |
multidisciplinary study of earth resources imagery of australia, antarctica and papua, new guinea |
publishDate |
1975 |
url |
http://hdl.handle.net/2060/19750020417 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
CASI |
op_relation |
Document ID: 19750020417 Accession ID: 75N28490 http://hdl.handle.net/2060/19750020417 |
op_rights |
No Copyright |
_version_ |
1766267886371864576 |