Detailed elevation map of Greenland (GeoEye, WorldView)
What it measures. A detailed elevation map of the Greenland Ice Sheet, showing the height of the ice surface at very fine resolution.
How it's made. Created from pairs of overlapping high-resolution images taken at slightly different angles by the GeoEye and WorldView commercial satellites, then aligned to ICESat-2 laser measurements for accuracy.
How & where you'd use it. Helps scientists measure the shape and changing height of Greenland's ice, a key piece of tracking ice loss and sea level rise.
What's measured
Coverage & cadence
- Time span2008-05-15 → 2020-11-19
- Measured byGEOEYE-1 (CAMERAS) · WORLDVIEW-1 (CAMERAS) · WORLDVIEW-2 (CAMERAS) · WORLDVIEW-3 (CAMERAS)
- Processing levelLevel 3
- Spatial extent-75, 60, -14, 83
- FormatsGeoTIFF
- StatusCOMPLETE
What you can do with it
- Measure sea ice, snow cover and glaciers
- Watch ice-sheet elevation change
- Track freeze/thaw and permafrost
Official description
This data set consists of an enhanced resolution digital elevation model (DEM) for the Greenland Ice Sheet, derived from sub-meter resolution, panchromatic stereoscopic imagery collected by the GeoEye-1, WorldView-1, -2, and -3 satellites operated by Maxar Technologies. The DEM was created from in-track image pairs (i.e., both images collected minutes apart along the same orbital pass) and cross-track images (i.e., from different orbits) within the in-track imaging geometry and maximum time separation criteria. The DEM is registered to ATLAS/ICESat-2 L3A Land Ice Height, Version 5 (ATL06, V5) data collected in the summers of 2019 and 2020. See <a href="http://nsidc.org/data/measures/gimp">Greenland Ice Mapping Project (GrIMP)</a> for related data
Get the data
import earthaccess
earthaccess.login(strategy="netrc") # free Earthdata Login
results = earthaccess.search_data(
short_name="NSIDC-0715",
version="2",
bounding_box=(-122.5, 37.2, -121.8, 37.9), # your area (W,S,E,N)
temporal=("2024-01-01", "2024-12-31"), # your dates
)
files = earthaccess.open(results) # stream straight from NSIDC_CPRD Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package. Official links
- Search and order NASA Earth Science data using spatial and temporal filters. Reformatting, reprojecting, and subsetting options are available for some data sets. GET DATA
- Quickly download a few files using a web browser, or access data through a command-line utility such as WGET. GET DATA
- Search data by spatial and/or temporal ranges or file name. Choose from various download options, including a Python script. GET DATA
- A Python library to search and access NASA Earth science data with just a few lines of code GET DATA
- Find more data access options and help resources. VIEW RELATED INFORMATION
- MEaSUREs Greenland Ice Mapping Project (GrIMP) Digital Elevation Model from GeoEye and WorldView Imagery, Version 2 User Guide VIEW RELATED INFORMATION
- Greenland Ice Mapping Project 2 (GIMP-2) Algorithm Theoretical Basis Document VIEW RELATED INFORMATION