Estimation and changes of long-time global solar radiation at China’s Antarctic Zhongshan Station and Great Wall Station ...

• Main Authors: Zeng, Zhaoliang, Ding, Minghu
• Format: Conference Object
• Language: unknown
• Published: GFZ German Research Centre for Geosciences 2023
• Subjects: Antarctic; Great Wall Station; Zhongshan; Zhongshan Station; Antarc*; Antarctica; Ice Sheet; Sea ice
• Online Access: https://dx.doi.org/10.57757/iugg23-1999; https://gfzpublic.gfz-potsdam.de/pubman/item/item_5017544

<!--!introduction!--> Solar radiation drives numerous geophysical and biological processes in Antarctica, including sea ice melting, ice sheet mass balance, and the photosynthetic processes of phytoplankton in the polar marine environment. Despite the ability of reanalysis and satellite products to provide valuable insights into global-scale solar radiation, the ground-based solar radiation in the polar region remains poorly understood due to the harsh conditions in Antarctica. This study evaluated the performance of empirical models and machine learning models to establish a long-term daily global solar radiation (DGSR) dataset using meteorological observation data from Zhongshan Station and the Great Wall Station. The machine learning method was found to outperform the empirical formula method, with the random forest (XGBoost) model demonstrating the best performance in terms of DGSR hindcast estimation at the Zhongshan Station (Great Wall Station). The annual DGSR at both stations showed a similar ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ...