Understanding the cause of sea level rise along coastal zone for 2005–2021
Understanding the coastal sea level budget (SLB) is essential to revealing the causes of sea level rise and predicting future sea level change. Here we present the coastal SLB based on multiple sets of sea level observations, including satellite altimetry, satellite gravimetry, and Argo floats over...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | Environmental Research Communications |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2515-7620/acc91d |
| _version_ | 1797844699276378112 |
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| author | Yuanyuan Yang Dapeng Mu Min Zhong Yulong Zhong Yanli Yao |
| author_facet | Yuanyuan Yang Dapeng Mu Min Zhong Yulong Zhong Yanli Yao |
| author_sort | Yuanyuan Yang |
| collection | DOAJ |
| description | Understanding the coastal sea level budget (SLB) is essential to revealing the causes of sea level rise and predicting future sea level change. Here we present the coastal SLB based on multiple sets of sea level observations, including satellite altimetry, satellite gravimetry, and Argo floats over 2005 to 2021. The coastal zone is defined within 500 km from the coast and covered by all Argo products. We find that sea level observations enable a closure for the coastal SLB for 2005-2015. However, since 2016, the coastal SLB shows a substantially larger discrepancy, consistent with the global mean SLB. The coastal SLB is unclosed for 2005-2021, with a mean sea level rise of 4.06 ± 0.27 mm yr ^−1 , a 0.74 ± 0.21 mm yr ^−1 rate for ocean mass, and a 2.27 ± 0.53 mm yr ^−1 for the steric component. Systematic Argo buoy salinity drift after 2016 is the main cause for the non-closure of coastal SLB over 2005-2021. Ignoring the suddenly unrealistic coastal salinity trends, the global coastal SLB from 2005 to 2021 is closed with a residual trend of 0.46 ± 0.63 mm yr ^−1 . Our results confirm that the coastal 500 km range does not need to be deliberately masked and ignored in global SLB research. |
| first_indexed | 2024-04-09T17:26:31Z |
| format | Article |
| id | doaj.art-f1d7bcbd3ea44aa68380363ff8aa76af |
| institution | Directory Open Access Journal |
| issn | 2515-7620 |
| language | English |
| last_indexed | 2024-04-09T17:26:31Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Communications |
| spelling | doaj.art-f1d7bcbd3ea44aa68380363ff8aa76af2023-04-18T13:49:29ZengIOP PublishingEnvironmental Research Communications2515-76202023-01-015404100110.1088/2515-7620/acc91dUnderstanding the cause of sea level rise along coastal zone for 2005–2021Yuanyuan Yang0https://orcid.org/0000-0002-6164-3160Dapeng Mu1https://orcid.org/0000-0002-4237-4559Min Zhong2Yulong Zhong3Yanli Yao4School of City and Regional Planning, Yancheng Teachers University , Yancheng, People’s Republic of China; StateKey Laboratory of Geodesy and Earth’s Dynamics, Institute of Geodesy andGeophysics, Innovation Academy for Precision Measurement Science andTechnology, Chinese Academy of Sciences, Wuhan, People’s Republic of ChinaInstitute of Space Sciences, Shandong University , Weihai, People’s Republic of ChinaSchool of Geospatial Engineering and Science, Sun Yat-Sen University , Zhuhai, People’s Republic of ChinaSchool of Geography and Information Engineering, China University of Geosciences (Wuhan) , Wuhan, People’s Republic of ChinaSchool of City and Regional Planning, Yancheng Teachers University , Yancheng, People’s Republic of ChinaUnderstanding the coastal sea level budget (SLB) is essential to revealing the causes of sea level rise and predicting future sea level change. Here we present the coastal SLB based on multiple sets of sea level observations, including satellite altimetry, satellite gravimetry, and Argo floats over 2005 to 2021. The coastal zone is defined within 500 km from the coast and covered by all Argo products. We find that sea level observations enable a closure for the coastal SLB for 2005-2015. However, since 2016, the coastal SLB shows a substantially larger discrepancy, consistent with the global mean SLB. The coastal SLB is unclosed for 2005-2021, with a mean sea level rise of 4.06 ± 0.27 mm yr ^−1 , a 0.74 ± 0.21 mm yr ^−1 rate for ocean mass, and a 2.27 ± 0.53 mm yr ^−1 for the steric component. Systematic Argo buoy salinity drift after 2016 is the main cause for the non-closure of coastal SLB over 2005-2021. Ignoring the suddenly unrealistic coastal salinity trends, the global coastal SLB from 2005 to 2021 is closed with a residual trend of 0.46 ± 0.63 mm yr ^−1 . Our results confirm that the coastal 500 km range does not need to be deliberately masked and ignored in global SLB research.https://doi.org/10.1088/2515-7620/acc91dcoastal sea level budgetsalinity driftaltimetryGRACEArgo |
| spellingShingle | Yuanyuan Yang Dapeng Mu Min Zhong Yulong Zhong Yanli Yao Understanding the cause of sea level rise along coastal zone for 2005–2021 Environmental Research Communications coastal sea level budget salinity drift altimetry GRACE Argo |
| title | Understanding the cause of sea level rise along coastal zone for 2005–2021 |
| title_full | Understanding the cause of sea level rise along coastal zone for 2005–2021 |
| title_fullStr | Understanding the cause of sea level rise along coastal zone for 2005–2021 |
| title_full_unstemmed | Understanding the cause of sea level rise along coastal zone for 2005–2021 |
| title_short | Understanding the cause of sea level rise along coastal zone for 2005–2021 |
| title_sort | understanding the cause of sea level rise along coastal zone for 2005 2021 |
| topic | coastal sea level budget salinity drift altimetry GRACE Argo |
| url | https://doi.org/10.1088/2515-7620/acc91d |
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