Observations of winter polynyas and fractures using NOAA AVHRR TIR images and Nimbus-7 SMMR sea ice concentration charts

The validity of the daily sea ice concentration charts obtained from Nimbus-7 SMMR data is tested against thermal IR NOAA AVHRR-4 images with a 1.1 x 1.1 km resolution. Polynyas and fractures recorded in both data sets are compared for the same times over the same areas. Although the coarser resolut...

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Bibliographic Details
Main Authors: Dey, B., Feldman, Uri
Format: Other/Unknown Material
Language:unknown
Published: 1989
Subjects:
48
Sea ice
Online Access:http://ntrs.nasa.gov/search.jsp?R=19900047009
id ftnasantrs:oai:casi.ntrs.nasa.gov:19900047009
record_format openpolar
spelling ftnasantrs:oai:casi.ntrs.nasa.gov:19900047009 2023-05-15T18:17:32+02:00 Observations of winter polynyas and fractures using NOAA AVHRR TIR images and Nimbus-7 SMMR sea ice concentration charts Dey, B. Feldman, Uri Unclassified, Unlimited, Publicly available Nov 1, 1989 http://ntrs.nasa.gov/search.jsp?R=19900047009 unknown http://ntrs.nasa.gov/search.jsp?R=19900047009 Accession ID: 90A34064 Copyright Other Sources 48 Remote Sensing of Environment; 30; 141-149 1989 ftnasantrs 2012-02-15T18:30:13Z The validity of the daily sea ice concentration charts obtained from Nimbus-7 SMMR data is tested against thermal IR NOAA AVHRR-4 images with a 1.1 x 1.1 km resolution. Polynyas and fractures recorded in both data sets are compared for the same times over the same areas. Although the coarser resolution of SMMR data leads to a loss of detail, it is found that the ice concentration charts provide valuable data on openings in the ice. The SMMR data on the location, orientation, and size of polynyas and fractures are shown to be in good agreement with the AVHRR data. Also, the results suggest that the location and orientation of plynyas and fractures are related to the direction of surface winds. Other/Unknown Material Sea ice NASA Technical Reports Server (NTRS)
institution Open Polar
collection NASA Technical Reports Server (NTRS)
op_collection_id ftnasantrs
language unknown
topic 48
spellingShingle 48
Dey, B.
Feldman, Uri
Observations of winter polynyas and fractures using NOAA AVHRR TIR images and Nimbus-7 SMMR sea ice concentration charts
topic_facet 48
description The validity of the daily sea ice concentration charts obtained from Nimbus-7 SMMR data is tested against thermal IR NOAA AVHRR-4 images with a 1.1 x 1.1 km resolution. Polynyas and fractures recorded in both data sets are compared for the same times over the same areas. Although the coarser resolution of SMMR data leads to a loss of detail, it is found that the ice concentration charts provide valuable data on openings in the ice. The SMMR data on the location, orientation, and size of polynyas and fractures are shown to be in good agreement with the AVHRR data. Also, the results suggest that the location and orientation of plynyas and fractures are related to the direction of surface winds.
format Other/Unknown Material
author Dey, B.
Feldman, Uri
author_facet Dey, B.
Feldman, Uri
author_sort Dey, B.
title Observations of winter polynyas and fractures using NOAA AVHRR TIR images and Nimbus-7 SMMR sea ice concentration charts
title_short Observations of winter polynyas and fractures using NOAA AVHRR TIR images and Nimbus-7 SMMR sea ice concentration charts
title_full Observations of winter polynyas and fractures using NOAA AVHRR TIR images and Nimbus-7 SMMR sea ice concentration charts
title_fullStr Observations of winter polynyas and fractures using NOAA AVHRR TIR images and Nimbus-7 SMMR sea ice concentration charts
title_full_unstemmed Observations of winter polynyas and fractures using NOAA AVHRR TIR images and Nimbus-7 SMMR sea ice concentration charts
title_sort observations of winter polynyas and fractures using noaa avhrr tir images and nimbus-7 smmr sea ice concentration charts
publishDate 1989
url http://ntrs.nasa.gov/search.jsp?R=19900047009
op_coverage Unclassified, Unlimited, Publicly available
genre Sea ice
genre_facet Sea ice
op_source Other Sources
op_relation http://ntrs.nasa.gov/search.jsp?R=19900047009
Accession ID: 90A34064
op_rights Copyright
_version_ 1766191822006124544

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