Landsat Fractional Snow Covered Area Product是一套30米的雪比例產品（含雲掩膜）
、
該產品包括2部分。一是雪比例產品fSCA，產品文件說明
LXSS_US_HHHVVV_YYYYMMDD_yyyymmdd_CCC_VVV_PACKAGE.tar
(e.g., LE07_CU_003011_200008285_20170918_C01_V01_SNOW.tar)
L Landsat
X Sensor (“C” = OLI/TIRS, “E” = ETM+, “T” = TM)
SS Satellite (“08” = Landsat 8, “07” = Landsat 7, “05” = Landsat 5, “04” = Landsat 4)
US Regional grid of the U.S. (“CU” = CONUS, “AK” = Alaska)
HHH Horizontal tile number
VVV Vertical tile number
YYYY Acquisition year
MM Acquisition month
DD Acquisition day
yyyy ARD tile Production year
mm ARD tile Production month
dd ARD tile Production day
CCC Level 1 Collection number (“C01”, “C02”, etc.)
VVV Analysis Ready Data (ARD) Version number (“V01”, “V02”, etc.)
PACKAGE Data package (“SNOW” = Fractional Snow Covered Area package)
產品內容是雲比例，縮放因子0.001。
二是雲掩膜產品REVCM，產品文件說明
LXSS_US_HHHVVV_YYYYMMDD_yyyymmdd_CCC_VVV_PRODUCT.ext
(e.g., LE07_CU_003011_200008285_20170918_C01_V01_REVCM.tif)
L Landsat
X Sensor (“C” = OLI/TIRS, “E” = ETM+, “T” = TM)
SS Satellite (“08” = Landsat 8, “07” = Landsat 7, “05” = Landsat 5, “04” = Landsat 4)
US Regional grid of the U.S. (“CU” = CONUS, “AK” = Alaska)
HHH Horizontal tile number
VVV Vertical tile number
YYYY Acquisition year
MM Acquisition month
DD Acquisition day
yyyy ARD tile Production year
mm ARD tile Production month
dd ARD tile Production day
CCC Level 1 Collection number (“C01”, “C02”)
VVV Analysis Ready Data (ARD) Version number (“V01”, “V02”)
PRODUCT Data product (“SNOW” = Fractional Snow Covered Area, “REVCM” = Revised Cloud Mask)
ext File extension (“.tif” = GeoTIFF, “.xml” = Extensible Markup Language)
產品內容說明
數據下載，使用EarthExplorer，在 Landsat 類別下, Landsat Collection 1 Level-3 子類, 選擇 Fractional Snow Covered Area.
但該產品僅覆蓋美西和阿拉斯加地區。
該產品用戶手冊鏈接
該產品覆蓋區域鏈接