全球变化科学紫荆论坛（第255期）： An Arctic reanalysis of ocean and sea-ice and its uncertainty evaluation
报告人:
Dr. Jiping Xie
Nansen Environmental and Remote Sensing Center
报告时间:
2018-07-01 09:30
报告地点:
清华地学系蒙民伟科技大楼南楼S818
主办单位:
地球系统科学系
简介:
In the global climate system, the Arctic ocean plays an important role especially illuminated by the recent warming and changes. Although hampered by the sparseness of the concerned, the ocean and sea ice states have been constructed and become an invaluable resource for understanding the potential relations among the dynamics variables in the past. However, recent inter-comparison studies suggest a large spread within the ensembles of the reanalyses. Based on the HYCOM and the ensemble Kalman filter, a coupled ocean and sea-ice data assimilation system using 100 members has been operationally implemented focusing on the Arctic forecast since 2008.
