The Effects of Atmospheric and Thermohaline Variability on the Validation of the GEOSAT Altimeter Oceanographic Signal between Scotland and Iceland
Atmospheric and oceanographic profiles from the area between Scotland and Iceland are analysed in order to predict the magnitudes of the errors they can induce in satellite altimeter measurements of sea-surface topography. This is the area where the second phase of the COMPASS project will take plac...
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ftdtic:ADA189324 2023-05-15T16:47:11+02:00 The Effects of Atmospheric and Thermohaline Variability on the Validation of the GEOSAT Altimeter Oceanographic Signal between Scotland and Iceland Minnett, P J SACLANT ASW RESEARCH CENTRE LA SPEZIA (ITALY) 1987-10 text/html http://www.dtic.mil/docs/citations/ADA189324 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA189324 en eng http://www.dtic.mil/docs/citations/ADA189324 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Physical and Dynamic Oceanography Meteorology *ALTIMETERS *EARTH ATMOSPHERE ARTIFICIAL SATELLITES CALIBRATION EXPENDABLE ICELAND MEASUREMENT OCEAN SURFACE OCEANOGRAPHIC DATA PROBES PROFILES RANGE FINDING SCOTLAND SIGNALS SPACEBORNE SPATIAL DISTRIBUTION TEMPERATURE TOPOGRAPHY VALIDATION BATHYTHERMOGRAPH DATA MARINE ATMOSPHERES SALINITY VARIABLES ERROR ANALYSIS TRANSPONDERS MICROWAVE EQUIPMENT SEA WATER IONOSPHERE NORTH ATLANTIC OCEAN NATO furnished COMPASS project GEOSAT satellites Ocean surface topography Text 1987 ftdtic 2016-02-19T10:46:32Z Atmospheric and oceanographic profiles from the area between Scotland and Iceland are analysed in order to predict the magnitudes of the errors they can induce in satellite altimeter measurements of sea-surface topography. This is the area where the second phase of the COMPASS project will take place in early 1988, and the aim is to provide absolute calibration data for the GEOSAT altimeter by using coastal land-based active microwave transponders. While most of the variability in the sea-surface topography can be ascribed to variations in the temperature profile, the spatial changes in the temperature-salinity relationship are such that errors in the sea-surface topography predicted from measured temperature profiles can not be neglected. This means that the validation of the altimeter oceanographic signal can not be done in this area by using only the more readily-available temperature profiles from expendable probes. The atmospheric variability characteristic of this area can induce errors in the altimeter range measurement comparable to the oceanographic signal, and careful corrections are necessary. These will have to faithfully reflect the changes in atmospheric properties along the COMPASS arc. Text Iceland North Atlantic Defense Technical Information Center: DTIC Technical Reports database |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
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ftdtic |
language |
English |
topic |
Physical and Dynamic Oceanography Meteorology *ALTIMETERS *EARTH ATMOSPHERE ARTIFICIAL SATELLITES CALIBRATION EXPENDABLE ICELAND MEASUREMENT OCEAN SURFACE OCEANOGRAPHIC DATA PROBES PROFILES RANGE FINDING SCOTLAND SIGNALS SPACEBORNE SPATIAL DISTRIBUTION TEMPERATURE TOPOGRAPHY VALIDATION BATHYTHERMOGRAPH DATA MARINE ATMOSPHERES SALINITY VARIABLES ERROR ANALYSIS TRANSPONDERS MICROWAVE EQUIPMENT SEA WATER IONOSPHERE NORTH ATLANTIC OCEAN NATO furnished COMPASS project GEOSAT satellites Ocean surface topography |
spellingShingle |
Physical and Dynamic Oceanography Meteorology *ALTIMETERS *EARTH ATMOSPHERE ARTIFICIAL SATELLITES CALIBRATION EXPENDABLE ICELAND MEASUREMENT OCEAN SURFACE OCEANOGRAPHIC DATA PROBES PROFILES RANGE FINDING SCOTLAND SIGNALS SPACEBORNE SPATIAL DISTRIBUTION TEMPERATURE TOPOGRAPHY VALIDATION BATHYTHERMOGRAPH DATA MARINE ATMOSPHERES SALINITY VARIABLES ERROR ANALYSIS TRANSPONDERS MICROWAVE EQUIPMENT SEA WATER IONOSPHERE NORTH ATLANTIC OCEAN NATO furnished COMPASS project GEOSAT satellites Ocean surface topography Minnett, P J The Effects of Atmospheric and Thermohaline Variability on the Validation of the GEOSAT Altimeter Oceanographic Signal between Scotland and Iceland |
topic_facet |
Physical and Dynamic Oceanography Meteorology *ALTIMETERS *EARTH ATMOSPHERE ARTIFICIAL SATELLITES CALIBRATION EXPENDABLE ICELAND MEASUREMENT OCEAN SURFACE OCEANOGRAPHIC DATA PROBES PROFILES RANGE FINDING SCOTLAND SIGNALS SPACEBORNE SPATIAL DISTRIBUTION TEMPERATURE TOPOGRAPHY VALIDATION BATHYTHERMOGRAPH DATA MARINE ATMOSPHERES SALINITY VARIABLES ERROR ANALYSIS TRANSPONDERS MICROWAVE EQUIPMENT SEA WATER IONOSPHERE NORTH ATLANTIC OCEAN NATO furnished COMPASS project GEOSAT satellites Ocean surface topography |
description |
Atmospheric and oceanographic profiles from the area between Scotland and Iceland are analysed in order to predict the magnitudes of the errors they can induce in satellite altimeter measurements of sea-surface topography. This is the area where the second phase of the COMPASS project will take place in early 1988, and the aim is to provide absolute calibration data for the GEOSAT altimeter by using coastal land-based active microwave transponders. While most of the variability in the sea-surface topography can be ascribed to variations in the temperature profile, the spatial changes in the temperature-salinity relationship are such that errors in the sea-surface topography predicted from measured temperature profiles can not be neglected. This means that the validation of the altimeter oceanographic signal can not be done in this area by using only the more readily-available temperature profiles from expendable probes. The atmospheric variability characteristic of this area can induce errors in the altimeter range measurement comparable to the oceanographic signal, and careful corrections are necessary. These will have to faithfully reflect the changes in atmospheric properties along the COMPASS arc. |
author2 |
SACLANT ASW RESEARCH CENTRE LA SPEZIA (ITALY) |
format |
Text |
author |
Minnett, P J |
author_facet |
Minnett, P J |
author_sort |
Minnett, P J |
title |
The Effects of Atmospheric and Thermohaline Variability on the Validation of the GEOSAT Altimeter Oceanographic Signal between Scotland and Iceland |
title_short |
The Effects of Atmospheric and Thermohaline Variability on the Validation of the GEOSAT Altimeter Oceanographic Signal between Scotland and Iceland |
title_full |
The Effects of Atmospheric and Thermohaline Variability on the Validation of the GEOSAT Altimeter Oceanographic Signal between Scotland and Iceland |
title_fullStr |
The Effects of Atmospheric and Thermohaline Variability on the Validation of the GEOSAT Altimeter Oceanographic Signal between Scotland and Iceland |
title_full_unstemmed |
The Effects of Atmospheric and Thermohaline Variability on the Validation of the GEOSAT Altimeter Oceanographic Signal between Scotland and Iceland |
title_sort |
effects of atmospheric and thermohaline variability on the validation of the geosat altimeter oceanographic signal between scotland and iceland |
publishDate |
1987 |
url |
http://www.dtic.mil/docs/citations/ADA189324 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA189324 |
genre |
Iceland North Atlantic |
genre_facet |
Iceland North Atlantic |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA189324 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766037270476881920 |