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Datasets/SENTINEL-1_INTERFEROMETRIC_WIDE_GRDH_HIGHRES
d026·dataset

Radar that sees through clouds & dark

Sentinel-1 GRD (Ground Range Detected)
ASF DAAC SENTINEL-1_INTERFEROMETRIC_WIDE_GRDH_HIGHRES 10 m (high-res GRD) 12-day (single satellite) / 6-day (when constellation) GeoTIFFSAFE landoceanwaterdeformation

Calibrated C-band SAR backscatter at 10 m. The workhorse for flood mapping, sea-ice classification, ship detection, agriculture monitoring.

Sentinel-1 GRD (Ground Range Detected)

Calibrated C-band SAR backscatter at 10 m. The workhorse for flood mapping, sea-ice classification, ship detection, agriculture monitoring.

Access

Gotchas

  • SAR speckle is real noise; multilook before interpreting
  • SAFE bundles are 4-8 GB; large for casual exploration
  • Use OPERA RTC-S1 for analysis-ready
  • Other datasets: d027

Sources

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

Quick access (cloud-direct)

sentinel-1_interferometric_wide_grdh_highres_access.py
import earthaccess
earthaccess.login(strategy="netrc")

results = earthaccess.search_data(
    short_name="SENTINEL-1*",
    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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1 matching entry in the Knowledge Base:

§14 Glossary
ID
DAAC