DISP

Overview¶

The Surface Displacement from Sentinel-1 (DISP-S1) product provides high-quality InSAR-derived surface-displacement time series with reduced decorrelation noise, generated using a hybrid Persistent Scatterer (PS) and Distributed Scatterer (DS) processing approach. DISP-S1 supports OPERA’s surface-displacement and vertical-land-motion mission objectives.

Product level & distribution¶

• Processing level: Level-3

• DAAC: ASF DAAC

• Project: NASA OPERA (JPL)

Applications¶

• Tectonic deformation and earthquake displacement monitoring

• Land subsidence from groundwater and hydrocarbon extraction

• Landslide and slow-slip event detection

• Infrastructure and critical-facility stability monitoring

Inputs¶

• OPERA Level-2 Coregistered Single-Look Complex (CSLC-S1) time series

• CSLC-S1 static geometry layers

• Water masks and ionospheric correction data

• Digital elevation model and Sentinel-1 orbit ephemerides

Coverage¶

The United States and U.S. territories, Canada within 200 km of the U.S. border, and mainland countries from the southern U.S. border through Panama.

References¶

• OPERA project page: https://www.jpl.nasa.gov/go/opera

• ASF DAAC: https://asf.alaska.edu

• DISP-S1 at ASF: https://www.earthdata.nasa.gov/data/catalog/asf-opera-l3-disp-s1-v1-1