Global Long-term River Width (GLOW)

This repository archives the Global LOng term river Width (GLOW) dataset measured from Landsat for 1984-2020. There are three datasets in this repository: Width, Cross_section, and Environmental_parameter_global. Width contains the GLOW dataset, which has three attributes: ID, date (mm/dd/yyyy), and width (unit: meters). Each cross-section is identified by a unique ID in the format of R########XS#######. The dataset is grouped into eight regions based on the geospatial location. Cross-section contains the shapefiles indicating the GLOW cross-section locations, which have three attributes: ID, lat (latitude), and lon (longitude). Environmental_parameter_global contains the environmental parameters generated in this study for the Random Forest analysis, which has eighteen parameters for all global rivers at the river reach level, including the temporal trend slope, interquartile range, 25th percentile, and 75th percentile of air temperature, snowmelt, precipitation, evapotranspiration, and river discharge. Please refer to the following paper for more details: Feng, D., Gleason C.J., Yang X., Allen G.H., and Pavelsky T.M., How have global river widths changed over time? Water Resources Research本仓库归档了1984-2020年间基于陆地卫星（Landsat）遥感测量得到的全球长期河道宽度（Global LOng term river Width, GLOW）数据集。本仓库共包含三类数据集：Width、Cross_section与Environmental_parameter_global。其中Width数据集即为GLOW数据集本体，包含三项属性：唯一标识ID、观测日期（格式为mm/dd/yyyy）及河道宽度（单位：米）。每个河道断面均采用格式为R########XS#######的唯一ID进行标识，该数据集按地理空间位置划分为八个区域。Cross_section数据集包含用于标注GLOW河道断面位置的矢量形状文件（shapefiles），其包含三项属性：ID、纬度（lat）与经度（lon）。Environmental_parameter_global数据集包含本研究为随机森林（Random Forest）分析生成的全球环境参数，涵盖全球所有河段的18项参数，包括气温、融雪量、降水量、蒸散量与河道径流量的时间趋势斜率、四分位距、25百分位数与75百分位数。更多详细信息请参阅以下论文：Feng, D., Gleason C.J., Yang X., Allen G.H. 与 Pavelsky T.M.，《全球河道宽度随时间的变化趋势》，《水资源研究（Water Resources Research）》