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Datasets/NISAR_L3_GUNW
d029·dataset

How the ground shifts (radar maps)

NISAR L3 Geocoded Unwrapped Interferograms
ASF DAAC NISAR_L3_GUNW cloud-native ~30 m 12-day pairs GeoTIFFNetCDF deformationcryospherehydrology

Analysis-ready L-band interferograms — InSAR time-series at L-band wavelength. Detects mm-scale deformation with long-baseline coherence that C-band cannot match.

NISAR L3 Geocoded Unwrapped Interferograms

Analysis-ready L-band interferograms — InSAR time-series at L-band wavelength. Detects mm-scale deformation with long-baseline coherence that C-band cannot match.

Access

Gotchas

  • Long-baseline coherence is the L-band advantage; still maturing operationally
  • Geocoding accuracy depends on the reference DEM
  • Same data-volume caveats as L1B
  • Other datasets: d028

Sources

The access details, code, and sources below are kept in the original English for technical accuracy.

Quick access (cloud-direct)

nisar_l3_gunw_access.py
import earthaccess
earthaccess.login(strategy="netrc")

results = earthaccess.search_data(
    short_name="NISAR_L3*",
    bounding_box=(-122.5, 37.2, -121.8, 37.9),
    temporal=("2024-01-01", "2024-12-31"),
)
files = earthaccess.open(results)   # stream from ASF DAAC
Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package.

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