Journal
EARTH SYSTEM SCIENCE DATA
Volume 13, Issue 6, Pages 3057-3074Publisher
COPERNICUS GESELLSCHAFT MBH
DOI: 10.5194/essd-13-3057-2021
Keywords
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Funding
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA19070103]
- National Natural Science Foundation of China [41971081]
- Project for Outstanding Youth Innovation Team in the Universities of Shandong Province [2019KJH011]
- Outstanding Youth Fund of Shandong Provincial Universities [ZR2016JL030]
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A comprehensive compilation of observed records is presented in the AntSMB dataset, which is crucial for accurately quantifying the Antarctic contribution to global sea level change. The dataset includes various types of measurement methods and covers different temporal resolutions, providing valuable information for investigating temporal and spatial variability in surface mass balance over Antarctica.
A comprehensive compilation of observed records is needed for accurate quantification of surface mass balance (SMB) over Antarctica, which is a key challenge for calculation of Antarctic contribution to global sea level change. Here, we present the AntSMB dataset: a new quality-controlled dataset of a variety of published field measurements of the Antarctic Ice Sheet SMB by means of stakes, snow pits, ice cores, ultrasonic sounders, and ground-penetrating radar (GPR). The dataset collects 3579 individual multi-year-averaged observations, 687 annually resolved time series from 675 sites extending back over the past 1000 years, and daily resolved records covering 245 years from 32 sites across the whole ice sheet. These records are derived from ice cores, snow pits, stakes/stake farms, and ultrasonic sounders. Furthermore, GPR multi-year-averaged measurements are included in the dataset, covering an area of 22 025 km(2). This is the first ice-sheet-scale compilation of SMB records at different temporal (daily, annual, and multi-year) resolutions from multiple types of measurement and is available at https://doi.org/10.11888/Glacio.tpdc.271148 (Wang et al., 2021). The database has potentially wide applications such as the investigation of temporal and spatial variability in SMB, model validation, assessment of remote sensing retrievals, and data assimilation As a case of model estimation, records of the AntSMB dataset are used to assess the performance of ERAS for temporal and spatial variability in SMB over Antarctica.
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