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Systematic Scatterometer Wind Errors Near Coastal Mountains

Satellite scatterometers provide the only regular observations of surface wind vectors over vast swaths of the world oceans, including coastal regions, which are of great scientific and societal interest but still present challenges for remote sensing. Here we demonstrate systematic scatterometer wi...

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Detalles Bibliográficos
Autores principales: Kilpatrick, Thomas, Xie, Shang‐Ping, Tokinaga, Hiroki, Long, David, Hutchings, Nolan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6919418/
https://www.ncbi.nlm.nih.gov/pubmed/31894202
http://dx.doi.org/10.1029/2019EA000757
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author Kilpatrick, Thomas
Xie, Shang‐Ping
Tokinaga, Hiroki
Long, David
Hutchings, Nolan
author_facet Kilpatrick, Thomas
Xie, Shang‐Ping
Tokinaga, Hiroki
Long, David
Hutchings, Nolan
author_sort Kilpatrick, Thomas
collection PubMed
description Satellite scatterometers provide the only regular observations of surface wind vectors over vast swaths of the world oceans, including coastal regions, which are of great scientific and societal interest but still present challenges for remote sensing. Here we demonstrate systematic scatterometer wind errors near Hawaii's Big Island: Two counter‐rotating lee vortices, which are clear in the International Comprehensive Ocean‐Atmosphere Data Set ship‐based wind climatology and in aircraft observations, are absent in the Jet Propulsion Laboratory and Remote Sensing Systems scatterometer wind climatologies. We demonstrate similar errors in the representation of transient Catalina Eddy events in the Southern California Bight. These errors likely arise from the nonuniqueness of scatterometer wind observations, that is, an “ambiguity removal” is required during processing to select from multiple wind solutions to the geophysical model function. We discuss strategies to improve the ambiguity selection near coastal mountains, where small‐scale wind reversals are common.
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spelling pubmed-69194182019-12-30 Systematic Scatterometer Wind Errors Near Coastal Mountains Kilpatrick, Thomas Xie, Shang‐Ping Tokinaga, Hiroki Long, David Hutchings, Nolan Earth Space Sci Research Articles Satellite scatterometers provide the only regular observations of surface wind vectors over vast swaths of the world oceans, including coastal regions, which are of great scientific and societal interest but still present challenges for remote sensing. Here we demonstrate systematic scatterometer wind errors near Hawaii's Big Island: Two counter‐rotating lee vortices, which are clear in the International Comprehensive Ocean‐Atmosphere Data Set ship‐based wind climatology and in aircraft observations, are absent in the Jet Propulsion Laboratory and Remote Sensing Systems scatterometer wind climatologies. We demonstrate similar errors in the representation of transient Catalina Eddy events in the Southern California Bight. These errors likely arise from the nonuniqueness of scatterometer wind observations, that is, an “ambiguity removal” is required during processing to select from multiple wind solutions to the geophysical model function. We discuss strategies to improve the ambiguity selection near coastal mountains, where small‐scale wind reversals are common. John Wiley and Sons Inc. 2019-10-18 2019-10 /pmc/articles/PMC6919418/ /pubmed/31894202 http://dx.doi.org/10.1029/2019EA000757 Text en ©2019. The Authors. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Kilpatrick, Thomas
Xie, Shang‐Ping
Tokinaga, Hiroki
Long, David
Hutchings, Nolan
Systematic Scatterometer Wind Errors Near Coastal Mountains
title Systematic Scatterometer Wind Errors Near Coastal Mountains
title_full Systematic Scatterometer Wind Errors Near Coastal Mountains
title_fullStr Systematic Scatterometer Wind Errors Near Coastal Mountains
title_full_unstemmed Systematic Scatterometer Wind Errors Near Coastal Mountains
title_short Systematic Scatterometer Wind Errors Near Coastal Mountains
title_sort systematic scatterometer wind errors near coastal mountains
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6919418/
https://www.ncbi.nlm.nih.gov/pubmed/31894202
http://dx.doi.org/10.1029/2019EA000757
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