Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/105306
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Land Surveying and Geo-Informatics | - |
dc.contributor | Research Institute for Land and Space | - |
dc.creator | Chen, J | - |
dc.creator | Cazenave, A | - |
dc.creator | Wang, SY | - |
dc.creator | Li, J | - |
dc.date.accessioned | 2024-04-12T06:51:29Z | - |
dc.date.available | 2024-04-12T06:51:29Z | - |
dc.identifier.uri | http://hdl.handle.net/10397/105306 | - |
dc.language.iso | en | en_US |
dc.publisher | Molecular Diversity Preservation International (MDPI) | en_US |
dc.rights | © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). | en_US |
dc.rights | The following publication Chen J, Cazenave A, Wang S-Y, Li J. Caspian Sea Level Change Observed by Satellite Altimetry. Remote Sensing. 2023; 15(3):703 is available at https://doi.org/10.3390/rs15030703. | en_US |
dc.subject | Atmospheric pressure | en_US |
dc.subject | Caspian sea level | en_US |
dc.subject | Inverted barometer | en_US |
dc.subject | Satellite altimeter | en_US |
dc.title | Caspian sea level change observed by satellite altimetry | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.volume | 15 | - |
dc.identifier.issue | 3 | - |
dc.identifier.doi | 10.3390/rs15030703 | - |
dcterms.abstract | We analyze satellite altimeter observed Caspian Sea level (CSL) changes over the period January 1993 to December 2021 using the lake level series from the Hydroweb project and global sea level anomalies (SLA) grids provided by the Copernicus Marine Environment Monitoring Service (CMEMS). The two altimeter-based CSL series agree well at interannual and longer time scales, but show significantly large discrepancies at seasonal and shorter time scales. The large discrepancies are found to be introduced by the approximately inverted barometer (IB) correction applied to the CMEMS SLA over the Caspian Sea. The IB correction over the Caspian Sea or any enclosed lakes needs to be treated separately from the ocean by using the correct reference mean pressure. The actual IB effects over the Caspian Sea are significantly smaller than those applied in the CMEMS SLA grids. After applying an improved IB correction using the global mean sea level pressure fields from the European Centre for Medium-Range Weather Forecasts (ECMWF) ERA5 reanalysis atmospheric model, the two CSL series agree remarkably well. Altimeter observed CSL series show a significant decreasing trend on top of strong seasonal variations. The estimated linear trends for the Hydroweb and CMEMS CSL series are −5.37 ± 0.11 and −5.40 ± 0.11 cm/yr, respectively. Annual amplitudes are 17.03 ± 1.33 vs. 15.79 ± 1.30 cm, with nearly the same phases. The CSL change shows notable acceleration in the decreasing trend since around 2005, and the estimated trends have increased to −8.86 ± 0.10 and −8.81 ± 0.10 cm/yr, respectively for the two-altimeter CSL series. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Remote sensing, Feb. 2023, v. 15, no. 3, 703 | - |
dcterms.isPartOf | Remote sensing | - |
dcterms.issued | 2023-02 | - |
dc.identifier.scopus | 2-s2.0-85147950874 | - |
dc.identifier.eissn | 2072-4292 | - |
dc.identifier.artn | 703 | - |
dc.description.validate | 202403 bcvc | - |
dc.description.oa | Version of Record | en_US |
dc.identifier.FolderNumber | OA_Scopus/WOS | en_US |
dc.description.fundingSource | others | en_US |
dc.description.fundingText | PolyU SHS; LSGI Internal Research Funds; Natural Science Foundation of China; Natural Science Foundation of Shanghai; Opening Project of the Shanghai Key Laboratory of Space Navigation and Positioning Techniques, and made use of the High-Performance Computing Resource in the Core Facility for Advanced Research Computing at Shanghai Astronomical Observatory, Chinese Academy of Sciences | en_US |
dc.description.pubStatus | Published | en_US |
dc.description.oaCategory | CC | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
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remotesensing-15-00703-v2.pdf | 3.26 MB | Adobe PDF | View/Open |
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