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Improving Arctic Sea-Ice Thickness Estimates with the Assimilation of CryoSat-2 Summer Observations

التفاصيل البيبلوغرافية
العنوان: Improving Arctic Sea-Ice Thickness Estimates with the Assimilation of CryoSat-2 Summer Observations
المؤلفون: Chao Min, Qinghua Yang, Hao Luo, Dake Chen, Thomas Krumpen, Nabir Mamnun, Xiaoyu Liu, Lars Nerger
المصدر: Ocean-Land-Atmosphere Research, Vol 2 (2023)
بيانات النشر: American Association for the Advancement of Science (AAAS), 2023.
سنة النشر: 2023
المجموعة: LCC:Oceanography
LCC:Meteorology. Climatology
مصطلحات موضوعية: Oceanography, GC1-1581, Meteorology. Climatology, QC851-999
الوصف: Rapidly shrinking Arctic sea ice has had substantial impacts on the Earth system. Therefore, reliably estimating the Arctic sea-ice thickness (SIT) using a combination of available observations and numerical modeling is urgently needed. Here, for the first time, we assimilate the latest CryoSat-2 summer SIT data into a coupled ice-ocean model. In particular, an incremental analysis update scheme is implemented to overcome the discontinuity resulting from the combined assimilation of biweekly SIT and daily sea-ice concentration (SIC) data. Along with improved estimates of sea-ice volume, our SIT estimates corrected the overestimation of SIT produced by the reanalysis that assimilates only SIC in summer in areas where the sea ice is roughest and experiences strong deformation, e.g., around the Fram Strait and Greenland. This study suggests that the newly developed CryoSat-2 SIT product, when assimilated properly using our approach, has great potential for Arctic sea-ice simulation and prediction.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2771-0378
Relation: https://doaj.org/toc/2771-0378
DOI: 10.34133/olar.0025
URL الوصول: https://doaj.org/article/a2eddf41ae254433a4ec8b4dee8789a2
رقم الأكسشن: edsdoj.2eddf41ae254433a4ec8b4dee8789a2
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:27710378
DOI:10.34133/olar.0025