Copernicus High Resolution Water Snow and Ice Monitoring: Gap-filled Fractional Snow Cover (GFSC) 60m

The Daily Cumulative Gap-filled Fractional Snow Cover (GFSC) product is generated on a daily basis at European scale based on synthetic aperture radar data from the Sentinel-1 constellation and optical imaging data from the Sentinel-2 constellation. The product provides the extent of the snow cover per pixel as a percentage (0% – 100%) with a spatial resolution of 60 m x 60 m.
GFSC is one of the products of the pan-European High-Resolution Water Snow & Ice portfolio (HR-WSI), which are provided at high spatial resolution from the Sentinel-2 and Sentinel-1 constellations data from September 1, 2016 onwards.
The GFSC product is distributed in raster files covering an area of 110 km by 110 km with a pixel size of 60 m by 60 m in UTM/WGS84 projection, which corresponds to the Sentinel-2 input L1C product tile. Each product is composed of separate files corresponding to the different layers of the product, and another metadata file.

每日累积间隙填充积雪分数覆盖（Daily Cumulative Gap-filled Fractional Snow Cover, GFSC）产品以欧洲全域为覆盖范围，每日基于哨兵-1（Sentinel-1）星座的合成孔径雷达（synthetic aperture radar）数据与哨兵-2（Sentinel-2）星座的光学成像数据生成。该产品以0%至100%的百分比形式给出每个像素的积雪覆盖占比，空间分辨率为60米×60米。
GFSC是泛欧洲高分辨率水、雪与冰产品包（pan-European High-Resolution Water Snow & Ice portfolio, HR-WSI）的旗下产品之一，该数据集自2016年9月1日起，依托哨兵-1（Sentinel-1）与哨兵-2（Sentinel-2）星座的遥感数据，提供高空间分辨率的相关产品。
GFSC产品以栅格文件格式分发，单文件覆盖范围为110千米×110千米，像素尺寸为60米×60米，采用通用横轴墨卡托（UTM）/世界大地测量系统1984（WGS84）投影，与哨兵-2（Sentinel-2）的L1C级输入产品瓦片相匹配。每份产品由对应产品不同图层的多个独立文件，以及一份元数据文件共同组成。