2009-2020年全球1km下行长波辐射逐日产品

数据集包括2009-2020年全球每日的下行长波辐射产品。下行长波辐射是地表处接收的3-100微米范围内的红外辐射，代表整层大气的辐射作用，是地表辐射收支的重要分量。利用FY3/VIRR瞬时遥感大气和云产品、0.25度的ERA5大气再分析数据，并采用下行长波辐射参数化模型，得到1km瞬时下行长波辐射。

This dataset contains global daily downward longwave radiation products spanning 2009 to 2020. Downward longwave radiation refers to the infrared radiation within the 3–100 micrometer wavelength range received at the Earth's surface, representing the radiative effect of the entire atmospheric column and serving as a critical component of the surface radiation budget. The 1km-resolution instantaneous downward longwave radiation products were derived using FY3/VIRR instantaneous remotely sensed atmospheric and cloud products, 0.25° ERA5 atmospheric reanalysis data, and a downward longwave radiation parameterization model.

搜集汇总

背景与挑战

背景概述

该数据集是2009年至2020年全球范围的1km分辨率逐日下行长波辐射产品，通过结合FY3/VIRR遥感数据、ERA5大气再分析数据和参数化模型生成，用于研究地表辐射预算。数据产品经过验证，全球均方根误差为28.3W/m²，具有较高的时空连续性。