Slope derived from 1" SRTM DEM-S
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资源简介：
Slope measures the inclination of the land surface from the horizontal. The percent slope and degrees slope products represent this inclination as the ratio of change in height to distance.
The slope (percentage) and slope (degrees) products were derived from the Smoothed Digital Elevation Model (DEM-S; ANZCW0703014016), which was derived from the 1 second resolution SRTM data acquired by NASA in February 2000. The calculation of slope from DEM-S accounted for the varying spacing between grid points in the geographic projection.
The 3 second resolution slope products were generated from the 1 second percent slope/degrees slope products and masked by the 3” water and ocean mask datasets.
坡度（Slope）用于衡量地表相对于水平面的倾斜程度。百分比坡度和角度坡度产品通过高度变化与距离的比值来表示这种倾斜度。
百分比坡度和角度坡度产品源自平滑数字高程模型（DEM-S；ANZCW0703014016），该模型基于美国国家航空航天局（NASA）于2000年2月获取的1秒分辨率SRTM数据生成。基于DEM-S计算坡度时，已考虑地理投影中网格点间距的变化。
3秒分辨率的坡度产品由1秒分辨率的百分比坡度/角度坡度产品生成，并通过3英寸（3"）水域和海洋掩膜数据集进行掩膜处理。
提供机构：
Terrestrial Ecosystem Research Network
