Preliminary results from the ASF/GPS ice classification algorithm
The European Space Agency Remote Sensing Satellite (ERS-1) satellite carried a C-band synthetic aperture radar (SAR) to study the earth's polar regions. The radar returns from sea ice can be used to infer properties of ice, including ice type. An algorithm has been developed for the Alaska SAR...
Main Authors: | , , |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
1992
|
Subjects: | |
Online Access: | http://ntrs.nasa.gov/search.jsp?R=19930063706 |
id |
ftnasantrs:oai:casi.ntrs.nasa.gov:19930063706 |
---|---|
record_format |
openpolar |
spelling |
ftnasantrs:oai:casi.ntrs.nasa.gov:19930063706 2023-05-15T18:17:34+02:00 Preliminary results from the ASF/GPS ice classification algorithm Cunningham, G. Kwok, R. Holt, B. Unclassified, Unlimited, Publicly available 1992 http://ntrs.nasa.gov/search.jsp?R=19930063706 unknown http://ntrs.nasa.gov/search.jsp?R=19930063706 Accession ID: 93A47703 Copyright Other Sources 48 In: IGARSS '92; Proceedings of the 12th Annual International Geoscience and Remote Sensing Symposium, Houston, TX, May 26-29, 1992. Vol. 1 (A93-47551 20-43); p. 573-575. 1992 ftnasantrs 2012-02-15T20:12:20Z The European Space Agency Remote Sensing Satellite (ERS-1) satellite carried a C-band synthetic aperture radar (SAR) to study the earth's polar regions. The radar returns from sea ice can be used to infer properties of ice, including ice type. An algorithm has been developed for the Alaska SAR facility (ASF)/Geophysical Processor System (GPS) to infer ice type from the SAR observations over sea ice and open water. The algorithm utilizes look-up tables containing expected backscatter values from various ice types. An analysis has been made of two overlapping strips with 14 SAR images. The backscatter values of specific ice regions were sampled to study the backscatter characteristics of the ice in time and space. Results show both stability of the backscatter values in time and a good separation of multiyear and first-year ice signals, verifying the approach used in the classification algorithm. Other/Unknown Material Sea ice Alaska NASA Technical Reports Server (NTRS) |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
48 |
spellingShingle |
48 Cunningham, G. Kwok, R. Holt, B. Preliminary results from the ASF/GPS ice classification algorithm |
topic_facet |
48 |
description |
The European Space Agency Remote Sensing Satellite (ERS-1) satellite carried a C-band synthetic aperture radar (SAR) to study the earth's polar regions. The radar returns from sea ice can be used to infer properties of ice, including ice type. An algorithm has been developed for the Alaska SAR facility (ASF)/Geophysical Processor System (GPS) to infer ice type from the SAR observations over sea ice and open water. The algorithm utilizes look-up tables containing expected backscatter values from various ice types. An analysis has been made of two overlapping strips with 14 SAR images. The backscatter values of specific ice regions were sampled to study the backscatter characteristics of the ice in time and space. Results show both stability of the backscatter values in time and a good separation of multiyear and first-year ice signals, verifying the approach used in the classification algorithm. |
format |
Other/Unknown Material |
author |
Cunningham, G. Kwok, R. Holt, B. |
author_facet |
Cunningham, G. Kwok, R. Holt, B. |
author_sort |
Cunningham, G. |
title |
Preliminary results from the ASF/GPS ice classification algorithm |
title_short |
Preliminary results from the ASF/GPS ice classification algorithm |
title_full |
Preliminary results from the ASF/GPS ice classification algorithm |
title_fullStr |
Preliminary results from the ASF/GPS ice classification algorithm |
title_full_unstemmed |
Preliminary results from the ASF/GPS ice classification algorithm |
title_sort |
preliminary results from the asf/gps ice classification algorithm |
publishDate |
1992 |
url |
http://ntrs.nasa.gov/search.jsp?R=19930063706 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
Sea ice Alaska |
genre_facet |
Sea ice Alaska |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19930063706 Accession ID: 93A47703 |
op_rights |
Copyright |
_version_ |
1766191940964974592 |