Inter-Comparisons of Daily Sea Surface Temperatures and In-Situ Temperatures in the Coastal Regions
In this study, seven, global, blended, sea surface temperature (SST) analyses, including Operational SST and Sea Ice Analysis (OSTIA), Canadian Meteorological Centre (CMC) analysis, Optimum Interpolation SST (OISST), Remote Sensing System (REMSS) analysis, Multi-scale Ultra-high Resolution SST (MURS...
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ftmdpi:oai:mdpi.com:/2072-4292/12/10/1592/ 2023-08-20T04:09:46+02:00 Inter-Comparisons of Daily Sea Surface Temperatures and In-Situ Temperatures in the Coastal Regions Hye-Jin Woo Kyung-Ae Park agris 2020-05-16 application/pdf https://doi.org/10.3390/rs12101592 EN eng Multidisciplinary Digital Publishing Institute Ocean Remote Sensing https://dx.doi.org/10.3390/rs12101592 https://creativecommons.org/licenses/by/4.0/ Remote Sensing; Volume 12; Issue 10; Pages: 1592 sea surface temperature (SST) satellite SST analysis accuracy assessment inter-comparison coastal region Text 2020 ftmdpi https://doi.org/10.3390/rs12101592 2023-07-31T23:30:43Z In this study, seven, global, blended, sea surface temperature (SST) analyses, including Operational SST and Sea Ice Analysis (OSTIA), Canadian Meteorological Centre (CMC) analysis, Optimum Interpolation SST (OISST), Remote Sensing System (REMSS) analysis, Multi-scale Ultra-high Resolution SST (MURSST), Merged Satellite and In situ Data Global Daily SST (MGDSST), and Geo-Polar Blended SST (Blended SST) were conducted. In-situ temperature measurements were used for the years 2014–2018, from 35 narrowly-spaced buoys distributed along the Korean Peninsula coast, to investigate how well the SST analyses represent the temperatures at the coastal regions. Contrary to the overall accuracy of the SSTs in the global ocean and offshore regions, the root-mean-square errors for the analyses were relatively large over 1.27 K. Specifically, all SST analyses resulted in warm biases over 0.31 K, which became quite distinctive in the western and the southwestern coastal regions. Investigation of the errors identified relationships with the coastal zones of vigorous tidal mixing, shallow bathymetry, and absence of microwave measurements. Overall, temporal wavelet coherency between in-situ measurements and SST products revealed high coherency of greater than 0.8 in periods longer than 180 days, however, low coherency (<0.5) in the period shorter than 10 days was observed. Inter-comparisons between the SST analyses illustrated clear spatial differences in the correlations at both the coastal regions, along the southwestern coast of the Korean Peninsula and in the frontal regions, and in the marginal seas of the Northwest Pacific. Overall, the results emphasized on the importance of using real-time in-situ measurements as much as possible, to overcome the increasing SST errors in coastal regions. Text Sea ice MDPI Open Access Publishing Pacific Remote Sensing 12 10 1592 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
sea surface temperature (SST) satellite SST analysis accuracy assessment inter-comparison coastal region |
spellingShingle |
sea surface temperature (SST) satellite SST analysis accuracy assessment inter-comparison coastal region Hye-Jin Woo Kyung-Ae Park Inter-Comparisons of Daily Sea Surface Temperatures and In-Situ Temperatures in the Coastal Regions |
topic_facet |
sea surface temperature (SST) satellite SST analysis accuracy assessment inter-comparison coastal region |
description |
In this study, seven, global, blended, sea surface temperature (SST) analyses, including Operational SST and Sea Ice Analysis (OSTIA), Canadian Meteorological Centre (CMC) analysis, Optimum Interpolation SST (OISST), Remote Sensing System (REMSS) analysis, Multi-scale Ultra-high Resolution SST (MURSST), Merged Satellite and In situ Data Global Daily SST (MGDSST), and Geo-Polar Blended SST (Blended SST) were conducted. In-situ temperature measurements were used for the years 2014–2018, from 35 narrowly-spaced buoys distributed along the Korean Peninsula coast, to investigate how well the SST analyses represent the temperatures at the coastal regions. Contrary to the overall accuracy of the SSTs in the global ocean and offshore regions, the root-mean-square errors for the analyses were relatively large over 1.27 K. Specifically, all SST analyses resulted in warm biases over 0.31 K, which became quite distinctive in the western and the southwestern coastal regions. Investigation of the errors identified relationships with the coastal zones of vigorous tidal mixing, shallow bathymetry, and absence of microwave measurements. Overall, temporal wavelet coherency between in-situ measurements and SST products revealed high coherency of greater than 0.8 in periods longer than 180 days, however, low coherency (<0.5) in the period shorter than 10 days was observed. Inter-comparisons between the SST analyses illustrated clear spatial differences in the correlations at both the coastal regions, along the southwestern coast of the Korean Peninsula and in the frontal regions, and in the marginal seas of the Northwest Pacific. Overall, the results emphasized on the importance of using real-time in-situ measurements as much as possible, to overcome the increasing SST errors in coastal regions. |
format |
Text |
author |
Hye-Jin Woo Kyung-Ae Park |
author_facet |
Hye-Jin Woo Kyung-Ae Park |
author_sort |
Hye-Jin Woo |
title |
Inter-Comparisons of Daily Sea Surface Temperatures and In-Situ Temperatures in the Coastal Regions |
title_short |
Inter-Comparisons of Daily Sea Surface Temperatures and In-Situ Temperatures in the Coastal Regions |
title_full |
Inter-Comparisons of Daily Sea Surface Temperatures and In-Situ Temperatures in the Coastal Regions |
title_fullStr |
Inter-Comparisons of Daily Sea Surface Temperatures and In-Situ Temperatures in the Coastal Regions |
title_full_unstemmed |
Inter-Comparisons of Daily Sea Surface Temperatures and In-Situ Temperatures in the Coastal Regions |
title_sort |
inter-comparisons of daily sea surface temperatures and in-situ temperatures in the coastal regions |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2020 |
url |
https://doi.org/10.3390/rs12101592 |
op_coverage |
agris |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Remote Sensing; Volume 12; Issue 10; Pages: 1592 |
op_relation |
Ocean Remote Sensing https://dx.doi.org/10.3390/rs12101592 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/rs12101592 |
container_title |
Remote Sensing |
container_volume |
12 |
container_issue |
10 |
container_start_page |
1592 |
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