Invariability of Arctic Top‐of‐Atmosphere Radiative Response to Surface Temperature Changes
Abstract Recent studies have used satellite data to estimate the response of top‐of‐atmosphere (TOA) radiative fluxes to surface temperature changes in the Arctic. The satellite‐observed radiative response is indicative of Arctic climate sensitivity that determines future Arctic warming. However, it...
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ftdoajarticles:oai:doaj.org/article:587d3d7ac5614845ab0bcb9bf3391841 2023-05-15T13:10:58+02:00 Invariability of Arctic Top‐of‐Atmosphere Radiative Response to Surface Temperature Changes Jiwon Hwang Yong‐Sang Choi Hui Su Jonathan H. Jiang 2020-11-01T00:00:00Z https://doi.org/10.1029/2020EA001316 https://doaj.org/article/587d3d7ac5614845ab0bcb9bf3391841 EN eng American Geophysical Union (AGU) https://doi.org/10.1029/2020EA001316 https://doaj.org/toc/2333-5084 2333-5084 doi:10.1029/2020EA001316 https://doaj.org/article/587d3d7ac5614845ab0bcb9bf3391841 Earth and Space Science, Vol 7, Iss 11, Pp n/a-n/a (2020) Astronomy QB1-991 Geology QE1-996.5 article 2020 ftdoajarticles https://doi.org/10.1029/2020EA001316 2022-12-31T05:23:31Z Abstract Recent studies have used satellite data to estimate the response of top‐of‐atmosphere (TOA) radiative fluxes to surface temperature changes in the Arctic. The satellite‐observed radiative response is indicative of Arctic climate sensitivity that determines future Arctic warming. However, it remains ambiguous whether the satellite‐observed radiative response is invariable because the time period covered by satellite data reflects a rapidly changing transient Arctic climate state with considerable sea ice loss. Using NASA's Clouds and Earth's Radiant Energy System (CERES) observations from 2000 to 2018, this study evaluates the invariability of the radiative response by comparing the radiative response of the high sea ice concentration (SIC) period to that of the low SIC period. The results show that the net radiative response remains approximately unchanged regardless of the SIC (−0.19 ± 0.44 and 0.15 ± 0.16 W m−2 K−1 for high and low SIC periods, respectively). In addition, seven of the 11 models from the Coupled Model Intercomparison Project Phase 6 (CMIP6) demonstrated that the modeled radiative responses are stable. The ERA‐interim reanalysis estimates show that regionally confined changes in individual radiative feedbacks such as albedo, lapse rate, water vapor, and clouds do not vary considerably. Consequently, we infer that the radiative response in the Arctic may remain stable even under rapid Arctic climate change. Hence, the Arctic climate sensitivity can be quantified with present satellite observations. Article in Journal/Newspaper albedo Arctic Climate change Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Earth and Space Science 7 11 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Astronomy QB1-991 Geology QE1-996.5 |
spellingShingle |
Astronomy QB1-991 Geology QE1-996.5 Jiwon Hwang Yong‐Sang Choi Hui Su Jonathan H. Jiang Invariability of Arctic Top‐of‐Atmosphere Radiative Response to Surface Temperature Changes |
topic_facet |
Astronomy QB1-991 Geology QE1-996.5 |
description |
Abstract Recent studies have used satellite data to estimate the response of top‐of‐atmosphere (TOA) radiative fluxes to surface temperature changes in the Arctic. The satellite‐observed radiative response is indicative of Arctic climate sensitivity that determines future Arctic warming. However, it remains ambiguous whether the satellite‐observed radiative response is invariable because the time period covered by satellite data reflects a rapidly changing transient Arctic climate state with considerable sea ice loss. Using NASA's Clouds and Earth's Radiant Energy System (CERES) observations from 2000 to 2018, this study evaluates the invariability of the radiative response by comparing the radiative response of the high sea ice concentration (SIC) period to that of the low SIC period. The results show that the net radiative response remains approximately unchanged regardless of the SIC (−0.19 ± 0.44 and 0.15 ± 0.16 W m−2 K−1 for high and low SIC periods, respectively). In addition, seven of the 11 models from the Coupled Model Intercomparison Project Phase 6 (CMIP6) demonstrated that the modeled radiative responses are stable. The ERA‐interim reanalysis estimates show that regionally confined changes in individual radiative feedbacks such as albedo, lapse rate, water vapor, and clouds do not vary considerably. Consequently, we infer that the radiative response in the Arctic may remain stable even under rapid Arctic climate change. Hence, the Arctic climate sensitivity can be quantified with present satellite observations. |
format |
Article in Journal/Newspaper |
author |
Jiwon Hwang Yong‐Sang Choi Hui Su Jonathan H. Jiang |
author_facet |
Jiwon Hwang Yong‐Sang Choi Hui Su Jonathan H. Jiang |
author_sort |
Jiwon Hwang |
title |
Invariability of Arctic Top‐of‐Atmosphere Radiative Response to Surface Temperature Changes |
title_short |
Invariability of Arctic Top‐of‐Atmosphere Radiative Response to Surface Temperature Changes |
title_full |
Invariability of Arctic Top‐of‐Atmosphere Radiative Response to Surface Temperature Changes |
title_fullStr |
Invariability of Arctic Top‐of‐Atmosphere Radiative Response to Surface Temperature Changes |
title_full_unstemmed |
Invariability of Arctic Top‐of‐Atmosphere Radiative Response to Surface Temperature Changes |
title_sort |
invariability of arctic top‐of‐atmosphere radiative response to surface temperature changes |
publisher |
American Geophysical Union (AGU) |
publishDate |
2020 |
url |
https://doi.org/10.1029/2020EA001316 https://doaj.org/article/587d3d7ac5614845ab0bcb9bf3391841 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
albedo Arctic Climate change Sea ice |
genre_facet |
albedo Arctic Climate change Sea ice |
op_source |
Earth and Space Science, Vol 7, Iss 11, Pp n/a-n/a (2020) |
op_relation |
https://doi.org/10.1029/2020EA001316 https://doaj.org/toc/2333-5084 2333-5084 doi:10.1029/2020EA001316 https://doaj.org/article/587d3d7ac5614845ab0bcb9bf3391841 |
op_doi |
https://doi.org/10.1029/2020EA001316 |
container_title |
Earth and Space Science |
container_volume |
7 |
container_issue |
11 |
_version_ |
1766245392713777152 |