JAGUAR Data Assimilation System Whole neutral Atmosphere Reanalysis (JAWARA)

JAWARA is a long-term reanalysis dataset produced from the data assimilation system JAGUAR-DAS that covers the whole neutral atmosphere, from the surface up to the lower thermosphere (z = 0-115 km). The horizontal grid spacing is about 2.8 degrees, while the vertical spacing is about 1 km. JAGUAR-DAS uses 4D-LETKF and assimilates satellite observations of temperature from Aura MLS and TIMED SABER and radiances from DMSP SSMIS, as well as conventional operational meteorological observations. Temperature, three-dimensional winds, geopotential height, temperature tendency from diabatic heating, zonal and meridional forcings from gravity wave parameterization, and data assimilation increments are provided at pressure levels.

搜集汇总

背景与挑战

背景概述

JAWARA是一个长期再分析数据集，覆盖整个中性大气层（从地表到低热层，0-115公里），使用JAGUAR-DAS数据同化系统，结合卫星和常规观测，提供高分辨率网格数据（水平约2.8度，垂直约1公里），时间范围从2004年9月至今，持续更新，适用于大气科学研究和气候分析。