地理遥感与城市以官方为准
Key facts
Contents & fields
SRTMGL1 V003 data are provided in 1°×1° tiles with .HGT extension. Each tile contains a single elevation band in 16-bit signed integer (int16) with units in meters. The following variable is documented:
- DEM——Elevation in meters, data type int16, fill value -32768, valid range -32767 to 32767.
Research uses
Suitable for terrain analysis, hydrological modeling, surface process studies, orthorectification of remote sensing imagery, and other geoscience and ecological research requiring global 30 m DEM.
This card was drafted from the source page; institution, coverage, time span, scale, fields and license are subject to the official page (pending human review).
Keywords
Why this is hard to get on your own
When acquiring global 30 m DEM, note the data format is HGT not GeoTIFF, and download requires Earthdata login.