ERA5-SH: A global grided scale height dataset for tropospheric parameters based on ERA5 reanalysis (Part Ⅰ: ZTDSH, ZHDSH, ZWDSH)

The scale height (SH) represents the height increment for a certain parameter to decrease to 36.7% (1/e) of its value at a certain height. We utilized extensive atmospheric profile data from the ERA5 dataset over a 10-year period (2013-2022) to accurately calculate the values of these six key tropospheric parameters. Subsequently, we performed exponential fitting to determine their respective scale heights, leading to the development of a dataset termed ERA5-SH. This dataset contains the scale heights of six crucial tropospheric parameters from 2013 to 2022, with a temporal resolution of one hour and a spatial resolution of one degree, covering 65,160 grid sites worldwide. This is the first part of the dataset, which includes ten years of data for three parameters (ZTDSH, ZHDSH, and ZWDSH). Each parameter is stored as a separate MAT file for each year.

尺度高度（Scale Height，SH）指某一参数的数值在某一高度处降至其原值的36.7%（即1/e）时所需的高度增量。本研究利用2013-2022年共10年的ERA5数据集海量大气廓线数据，精准计算了6种关键对流层参数的数值。随后通过指数拟合得到各参数对应的尺度高度，由此构建了命名为ERA5-SH的数据集。该数据集涵盖2013至2022年6种关键对流层参数的尺度高度数据，时间分辨率为1小时，空间分辨率为1°，覆盖全球65160个网格点。本数据集为第一部分，包含ZTDSH、ZHDSH及ZWDSH共3种参数的10年数据。每年的各参数数据均以独立的MAT文件存储。