Improved 8-day version 6.1 Terra–Aqua MODIS cloud-free snow cover and Randolph Glacier Inventory 6.0 product for high-mountain Asia between 2002 and 2022

The product contains improved MODIS 8-day Terra (MOD10A2) and Aqua (MYD10A2) collection 6.1 snow-cover composite product merged with Randolph Glacier Inventory (RGI6.0). The product is generated using MODIS Terra and Aqua 8-day snow cover products MOD10A2 and MYD10A2 collection 6.1 (C61), respectively. The data covers High Mountain Asia (HMA) covering latitude 24.32 − 49.19 N and Longitude 58.22 − 122.48 E. The data is available with eight-day temporal resolution and 500 m spatial resolution covering the period between 2002 and 2022. The name of the product is derived from MODIS Terra (MOD) MODIS Aqua (MYD), and Glacier (GL), Version 6.1 (61) as M*D10A2V61GL. The product is described in ordinal date and there are 46 eight-day composite images each year in GeoTIFF file format. The data is described by the values:25 - No Snow classes, 50 - Cloud, 198 - Snow only in Terra, 199 - Snow only in Aqua, 200 - Snow in both Terra and Aqua, 238 - Debris-covered ice with Terra Snow, 239 - Debris-covered ice with Aqua Snow, 240 - Exposed debris-covered ice, 242 - Debris-covered ice with Snow in both Terra and Aqua, 248 - Debris-free ice with Terra Snow, 249 - Debris-free ice with Aqua Snow, 250 - Exposed debris-free ice, 252 - Debris-free ice with snow in both Terra and Aqua.

该产品包含改进的MODIS（Moderate Resolution Imaging Spectroradiometer）8天Terra（MOD10A2）和Aqua（MYD10A2）集合6.1雪覆盖复合产品，与Randolph冰川目录（RGI6.0）合并而成。该产品通过使用MODIS Terra和Aqua 8天雪覆盖产品MOD10A2和MYD10A2集合6.1（C61）分别生成。数据覆盖了高山亚洲（HMA），涵盖纬度24.32 − 49.19 N和经度58.22 − 122.48 E。数据具有8天的时序分辨率和500米的空間分辨率，覆盖了2002年至2022年间的数据。该产品的名称由MODIS Terra（MOD）、MODIS Aqua（MYD）和冰川（GL），版本6.1（61）组合而成，命名为M*D10A2V61GL。产品以序数日期描述，每年有46个八天复合图像，并以GeoTIFF文件格式存储。数据通过以下值进行描述：25 - 无雪类别，50 - 云，198 - 仅在Terra中存在雪，199 - 仅在Aqua中存在雪，200 - Terra和Aqua中都存在雪，238 - Terra雪覆盖的碎屑冰，239 - Aqua雪覆盖的碎屑冰，240 - 暴露的碎屑冰，242 - Terra和Aqua中都存在雪的碎屑冰，248 - Terra雪覆盖的无碎屑冰，249 - Aqua雪覆盖的无碎屑冰，250 - 暴露的无碎屑冰，252 - Terra和Aqua中都存在雪的无碎屑冰。