Datasets and results of 'Glacier mass balance and its climatic and non-climatic drivers in the Ladakh region during 2000-2021 from remote sensing data'

In this repository, we provide processed elevation change rasters, CSV files containing individual glacier mass balance and other attributes, as well as processed elevation change points using ICESat-2 datasets for both WL and EL regions. These datasets and results are associated with the article 'Glacier mass balance and its climatic and non-climatic drivers in the Ladakh region during 2000-2021 from remote sensing data', published in Journal of Glaciology. Further details for each data file are provided below.

Elevation change raster files (.tif) have undergone several processing steps. Please refer to Sections 3.2, 3.3, and 3.5 in the published paper. 'WL_ASTER2017_', 'WL_ASTER_2021', 'EL_ASTER_2020', 'EL_ASTER_2021' represent the elevation change between 2000-2017, 2000-2021, 2000-2020, and 2000-2021.

In the CSV files (WL_MB_, EL_MB_), individual glaciers are labeled with their RGIId. Columns such as dh_mean, dh_mean_err, mb, mb_err, mb_err_year represent the total elevation change (m), total elevation change error (m), total mass balance (m w.e.), mass balance error (m w.e.), and mass balance per year (m w.e./year). Additionally, other topographical attributes are provided for each surveyed glacier.

In the CSV files (icesat2_dh_.. for WL and EL), x, y, and h_li refer to the x and y coordinates of the ICESat-2 laser pulse footprint, with its land ice elevation (m). Columns dem_elev and diff_elev refer to the elevation (m) of the same data point in SRTM DEM (of the year 2000) and the elevation difference between ICESat-2 and SRTM points, respectively. The 'on_ice' column indicates whether the point was taken over ice or bare surfaces.

Please contact the corresponding author of the article (Arindan Mandal; [e-mail]) if you need any further information regarding the datasets.

本研究仓库提供了经过预处理的高程变化栅格数据、包含单条冰川物质平衡与其他属性的CSV文件，以及针对WL、EL区域采用ICESat-2数据集处理得到的高程变化点数据。上述数据集与研究结果关联发表于《Journal of Glaciology》（冰川学杂志）的论文《基于遥感数据的2000-2021年拉达克地区冰川物质平衡及其气候与非气候驱动因子》（原文标题：Glacier mass balance and its climatic and non-climatic drivers in the Ladakh region during 2000-2021 from remote sensing data）。下文将详述各数据文件的详细信息。

高程变化栅格文件（.tif格式）已完成多步预处理流程，具体可参见已发表论文的3.2、3.3与3.5节。文件名'WL_ASTER2017_'、'WL_ASTER_2021'、'EL_ASTER_2020'、'EL_ASTER_2021'分别对应2000-2017年、2000-2021年、2000-2020年以及2000-2021年的高程变化。

在WL_MB_、EL_MB_格式的CSV文件中，每条冰川以其RGIId（Randolph Glacier Inventory Identifier，兰多夫冰川目录标识符）进行标识。dh_mean、dh_mean_err、mb、mb_err、mb_err_year等字段分别代表总高程变化（单位：米）、总高程变化误差（单位：米）、总物质平衡（单位：米水当量，m w.e.）、物质平衡误差（单位：米水当量）以及年物质平衡（单位：米水当量/年，m w.e./year）。此外，文件还提供了每条调研冰川的其他地形属性数据。

针对WL与EL区域的icesat2_dh_..格式CSV文件中，x、y与h_li分别代表ICESat-2激光脉冲足迹的x、y坐标，以及对应陆冰的高程（单位：米）。dem_elev与diff_elev字段分别代表同一数据点在2000年SRTM DEM（Shuttle Radar Topography Mission Digital Elevation Model，航天飞机雷达地形测绘任务数字高程模型）中的高程（单位：米），以及ICESat-2观测高程与SRTM DEM高程的差值。on_ice字段用于标识该数据点采集于冰面还是裸地表层。

若需获取该数据集的更多信息，请联系论文通讯作者Arindan Mandal（邮箱：[e-mail]）。