Shrub plant weight on Alaska's North Slope (30 m)
What it measures. Maps showing how much plant matter is growing across Alaska's North Slope, broken into total aboveground plant weight, the share that is shrubs, and how dominant shrubs are, at 30-meter detail.
How it's made. Built by combining on-the-ground plant harvest measurements from 28 field studies with greenness readings from Landsat 5 and 7 satellite imagery.
How & where you'd use it. Useful for tracking shrub expansion in the Arctic, studying tundra change, and estimating how much carbon is stored in northern vegetation.
What's measured
Coverage & cadence
- Time span2007-06-01 → 2016-08-31
- Measured byLANDSAT-5 (TM) · MODELS (Computer) · FIELD SURVEYS (STEEL MEASURING TAPE) · LANDSAT-7 (ETM+)
- Processing levelLevel 3
- Spatial extent-168.576, 64.7265, -111.551, 76.226
- Formatsmultiple
- StatusCOMPLETE
What you can do with it
- Track deforestation, fire scars and land-cover change
- Monitor crop and vegetation health (NDVI/EVI)
- Map how built-up vs. green an area is over time
Official description
This dataset includes 30-m gridded estimates of total plant aboveground biomass (AGB), the shrub AGB, and the shrub dominance (shrub/plant AGB) for non-water portions of the Beaufort Coastal Plain and Brooks Foothills ecoregions of the North Slope of Alaska. The estimates were derived by linking biomass harvests from 28 published field site datasets with NDVI from a regional Landsat mosaic derived from Landsat 5 and 7 satellite imagery. The data cover the period 2007-06-01 to 2016-08-31.
Get the data
import earthaccess
earthaccess.login(strategy="netrc") # free Earthdata Login
results = earthaccess.search_data(
short_name="Maps_AGB_North_Slope_AK_1565",
version="1",
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 ORNL_CLOUD Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package. Official links
- Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data. GET DATA
- Collection Bundle URL GET DATA
- A file in KMZ format which provides the study site locations VIEW RELATED INFORMATION
- ORNL DAAC Data Set Documentation VIEW RELATED INFORMATION
- A PDF of the guide VIEW RELATED INFORMATION
- A file in comma-separated 9.csv) format of the filed data VIEW RELATED INFORMATION