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Full catalog/ASF_ECMWF_SMST
ASF_ECMWF_SMST·v1·dataset

Weather-model soil moisture and temperature

ECMWF SMST Data
atmosphere NASA ASF Level 4 active netCDF-3
In plain English

What it measures. Soil moisture and soil temperature values that come from a weather model rather than from a satellite sensor.

How it's made. A selected subset of products from the European weather agency ECMWF, prepared as supporting input for NASA's NISAR radar mission.

How & where you'd use it. Serves as background reference data that helps process and interpret NISAR observations; it's a behind-the-scenes input rather than a standalone product for general use.

What's measured

ATMOSPHERE › ATMOSPHERIC TEMPERATUREATMOSPHERE › PRECIPITATIONBIOSPHERE › VEGETATION › VEGETATION INDEX › LEAF AREA INDEX (LAI)AGRICULTURE › SOILSTERRESTRIAL HYDROSPHERE › SNOW/ICE › SNOW DEPTH

Coverage & cadence

  • Time span2025-08-01 → ongoing
  • Measured byECMWF
  • Processing levelLevel 4
  • Spatial extent-180, -90, 180, 90
  • FormatsnetCDF-3
  • StatusACTIVE

What you can do with it

  • Map air pollutants — NO₂, aerosols, ozone
  • Track greenhouse gases and Earth's energy budget
  • Feed weather and air-quality analysis
Official description

Subset of ECMWF products used for creation of products for the NISAR mission.

Get the data

asf_ecmwf_smst_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="ASF_ECMWF_SMST",
    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 ASF
Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package.