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- W4322006068 abstract "In the polar regions satellite sea level observations are limited by the sea ice. Thanks to a dedicated processing, sea level can however be estimated within fractures in the ice (leads) enabling to produce continuous sea level maps including the ice-covered region.Maps of sea level of the Arctic (Prandi et al., 2021) and Southern (Auger et al., 2022) ocean were produced over 2011-2021 by combining measurements of 3 satellites from 50°N/S to 88°N/S through optimal interpolation. The three satellite missions (Sentinel-3A, SARAL/AltiKa and Cryosat-2) are processed using the same standards and are in great agreement. The along-track data were ingested in the new CNES/CLS22 mean sea surface solution and in a prototype of global sea level maps. The products are provided on the Aviso Regional Products portal and serve as demonstration products for the future generation of operational CMEMS-SLTAC products.The sea level maps are validated against hourly Gloss/Clivar tide gauge at Prudoe Bay and monthly PSMSL tide gauges. It is also compared to bottom pressure recorders at the north pole and in the Beaufort sea (BGEP project) showing great correlation at monthly timescale. At inter-annual timescale, the product sea level and steric height from in-situ profiles (BGEP project) show the same evolution in the Beaufort sea. Sea level trends are also estimated from this product and compared to model trends.Arctic sea level is influenced by the atmospheric circulation. At large scale, the product sea level is correlated to the arctic oscillation index. At smaller scale in the Kara and Laptev sea regions, the product sea level is well correlated with zonal wind producing cross-shelf sea level accumulation." @default.
- W4322006068 created "2023-02-26" @default.
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- W4322006068 date "2023-05-15" @default.
- W4322006068 modified "2023-09-27" @default.
- W4322006068 title "Sea level maps of the Arctic (and southern) ocean from satellite altimetry from 2011 to 202" @default.
- W4322006068 doi "https://doi.org/10.5194/egusphere-egu23-7859" @default.
- W4322006068 hasPublicationYear "2023" @default.
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