Geoid and sea surface topography derived from ERS-1 altimeter data by the adjoint method
A method for splitting sea surface height measurements from satellite altimetry into geoid undulations and sea surface topography is presented. The method is based on a combination of the information from altimeter data and a dynamic sea surface height model. The model consists of geoid undulations...
Main Authors: | , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | unknown |
Subjects: | |
Online Access: | https://kramerius.lib.cas.cz/view/uuid:aefa96a5-b99f-4c91-a3b3-25a4471d0d8f https://doi.org/10.1023/A:1022080011849 |
id |
ftczechacademysc:oai:kramerius.lib.cas.cz:uuid:aefa96a5-b99f-4c91-a3b3-25a4471d0d8f |
---|---|
record_format |
openpolar |
spelling |
ftczechacademysc:oai:kramerius.lib.cas.cz:uuid:aefa96a5-b99f-4c91-a3b3-25a4471d0d8f 2024-03-17T08:59:15+00:00 Geoid and sea surface topography derived from ERS-1 altimeter data by the adjoint method Blinken, Robert Koch, Karl-Rudolf, 1935- print média svazek https://kramerius.lib.cas.cz/view/uuid:aefa96a5-b99f-4c91-a3b3-25a4471d0d8f https://doi.org/10.1023/A:1022080011849 unknown https://kramerius.lib.cas.cz/view/uuid:aefa96a5-b99f-4c91-a3b3-25a4471d0d8f issn:0039-3169 doi:https://doi.org/10.1023/A:1022080011849 policy:private satelitní altimetrie výška hladiny moře zvlnění geoidu topografie povrchu moří satellite altimetry sea surface heights geoid undulations sea surface topography quasi-geostrophic model adjoint method 7 550 model:article ftczechacademysc https://doi.org/10.1023/A:1022080011849 2024-02-19T22:56:34Z A method for splitting sea surface height measurements from satellite altimetry into geoid undulations and sea surface topography is presented. The method is based on a combination of the information from altimeter data and a dynamic sea surface height model. The model consists of geoid undulations and a quasi-geostrophic model for expressing the sea surface topography. The goal is the estimation of those values of the parameters of the sea surface height model that provide a least-squares fit of the model to the data. The solution is accomplished by the adjoint method which makes use of the adjoint model for computing the gradient of the cost function of the least-squares adjustment and an optimization algorithm for obtaining improved parameters. The estimation is applied to the North Atlantic. ERS-1 altimeter data of the year 1993 are used. The resulting geoid agrees well with the geoid of the EGM96 gravity model. Robert Blinken, Karl-Rudolf Koch. Obsahuje bibliografii Article in Journal/Newspaper North Atlantic Czech Academy of Sciences: dKNAV |
institution |
Open Polar |
collection |
Czech Academy of Sciences: dKNAV |
op_collection_id |
ftczechacademysc |
language |
unknown |
topic |
satelitní altimetrie výška hladiny moře zvlnění geoidu topografie povrchu moří satellite altimetry sea surface heights geoid undulations sea surface topography quasi-geostrophic model adjoint method 7 550 |
spellingShingle |
satelitní altimetrie výška hladiny moře zvlnění geoidu topografie povrchu moří satellite altimetry sea surface heights geoid undulations sea surface topography quasi-geostrophic model adjoint method 7 550 Blinken, Robert Koch, Karl-Rudolf, 1935- Geoid and sea surface topography derived from ERS-1 altimeter data by the adjoint method |
topic_facet |
satelitní altimetrie výška hladiny moře zvlnění geoidu topografie povrchu moří satellite altimetry sea surface heights geoid undulations sea surface topography quasi-geostrophic model adjoint method 7 550 |
description |
A method for splitting sea surface height measurements from satellite altimetry into geoid undulations and sea surface topography is presented. The method is based on a combination of the information from altimeter data and a dynamic sea surface height model. The model consists of geoid undulations and a quasi-geostrophic model for expressing the sea surface topography. The goal is the estimation of those values of the parameters of the sea surface height model that provide a least-squares fit of the model to the data. The solution is accomplished by the adjoint method which makes use of the adjoint model for computing the gradient of the cost function of the least-squares adjustment and an optimization algorithm for obtaining improved parameters. The estimation is applied to the North Atlantic. ERS-1 altimeter data of the year 1993 are used. The resulting geoid agrees well with the geoid of the EGM96 gravity model. Robert Blinken, Karl-Rudolf Koch. Obsahuje bibliografii |
format |
Article in Journal/Newspaper |
author |
Blinken, Robert Koch, Karl-Rudolf, 1935- |
author_facet |
Blinken, Robert Koch, Karl-Rudolf, 1935- |
author_sort |
Blinken, Robert |
title |
Geoid and sea surface topography derived from ERS-1 altimeter data by the adjoint method |
title_short |
Geoid and sea surface topography derived from ERS-1 altimeter data by the adjoint method |
title_full |
Geoid and sea surface topography derived from ERS-1 altimeter data by the adjoint method |
title_fullStr |
Geoid and sea surface topography derived from ERS-1 altimeter data by the adjoint method |
title_full_unstemmed |
Geoid and sea surface topography derived from ERS-1 altimeter data by the adjoint method |
title_sort |
geoid and sea surface topography derived from ers-1 altimeter data by the adjoint method |
url |
https://kramerius.lib.cas.cz/view/uuid:aefa96a5-b99f-4c91-a3b3-25a4471d0d8f https://doi.org/10.1023/A:1022080011849 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://kramerius.lib.cas.cz/view/uuid:aefa96a5-b99f-4c91-a3b3-25a4471d0d8f issn:0039-3169 doi:https://doi.org/10.1023/A:1022080011849 |
op_rights |
policy:private |
op_doi |
https://doi.org/10.1023/A:1022080011849 |
_version_ |
1793769667400040448 |