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}NASA Earthdata CMR + NASA Data Portal2026 · Image data
NISAR Provisional Geocoded Unwrapped Interferogram Product (Version 1)The NASA-ISRO Synthetic Aperture Radar (NISAR) Geocode Unwrapped Interferogram (GUNW) product is a Level 2 product derived from the Range Doppler Wrapped Interferogram (RIFG) and Range Doppler Unwrapped Interferogram (RUNW) products by geocoding the unwrapped phase and associated data layers (i.e., coherence magnitude, ionospheric phase screen) on a geographical grid at 80 m posting. Geocoding is
NASA Earthdata CMR + NASA Data Portal2026 · Image data
NISAR Provisional Range Doppler Pixel Offsets (Version 1)The NASA-ISRO Synthetic Aperture Radar (NISAR) Range Doppler Pixel Offsets (ROFF) product contains a collection of dense pixel offset layers obtained from applying incoherent cross-correlation on a pair of coarsely coregistered Level 1 Range Doppler Single Look Complex (RSLC) products in the range-Doppler geometry of the earlier reference RSLC product. The pair of RSLCs used to produce ROFF is fir
NASA Earthdata CMR + NASA Data Portal2026 · Image data
NISAR Provisional Geocoded Polarimetric Covariance Product (Version 1)The NASA-ISRO Synthetic Aperture Radar (NISAR) Geocoded Polarimetric Covariance (GCOV) product is a Level 2 product derived from the Level 1 Range Doppler Single Look Complex (RSLC). The GCOV product provides terrain-corrected polarimetric covariance projected onto a predefined Universal Transverse Mercator (UTM) or polar stereographic projection system grid. RSLC radar samples, organized as a pol
NASA Earthdata CMR + NASA Data Portal2026 · Image data
NISAR Provisional Range Doppler Unwrapped Interferogram Product (Version 1)The NASA-ISRO Synthetic Aperture Radar (NISAR) Range Doppler Unwrapped Interferogram (RUNW) product represents the unwrapped, ellipsoid- and topography-flattened, multi-looked interferogram generated from two Level 1 Range Doppler Single Look Complex (RSLC) products in the earlier reference acquisition range-Doppler geometry. The RUNW product has a nominal posting of 80 meters on the ground, irres
NASA Earthdata CMR + NASA Data Portal2026 · Image data
NISAR Provisional Range Doppler Single Look Complex Product (Version 1)The NASA-ISRO Synthetic Aperture Radar (NISAR) Range Doppler Single Look Complex (RSLC) product is in the zero-Doppler radar geometry convention. The output image is on a grid characterized by constant azimuth time interval and one-way slant range spacing. The output grid is also characterized by a fixed starting slant range, azimuth time interval, and slant range spacing values for easy interpola
NASA Earthdata CMR + NASA Data Portal2026 · Image data
NISAR Provisional Geocoded Pixel Offsets (Version 1)The NASA-ISRO Synthetic Aperture Radar (NISAR) Geocoded Pixel Offsets (GOFF) product is a Level 2 product derived from the Range Doppler Pixel Offsets (ROFF) product by geocoding the pixel offset layers and its associated data layers (i.e., SNR) on a geographical grid at 80 m posting. Geocoding uses the orbit of the reference Range Doppler Single Look Complex (RSLC) product and a Digital Elevation
NASA Earthdata CMR + NASA Data Portal2026 · Image data
NISAR Provisional Range Doppler Wrapped Interferogram Product (Version 1)The NASA-ISRO Synthetic Aperture Radar (NISAR) Range Doppler Wrapped Interferogram (RIFG) product represents the ellipsoid and topography flattened wrapped interferogram generated from two Level 1 Range-Doppler Single Look Complex (RSLC) products in the range-Doppler geometry of the earlier reference acquisition. The WGS84 ellipsoid is used as the reference surface for flat earth correction. The R
NASA Earthdata CMR + NASA Data Portal2026 · Image data
NISAR Provisional Geocoded Single Look Complex Product (Version 1)The NASA-ISRO Synthetic Aperture Radar (NISAR) Geocoded Single Look Complex (GSLC) product is a Level 2 product derived from the Level 1 Range Doppler Single Look Complex (RSLC) product by geocoding the input RSLC into a geocoded map coordinate system such as the UTM/Polar stereographic projection system. The geocoding is performed by inverse mapping of the map coordinates with their topographic h
NASA Earthdata CMR + NASA Data Portal2026 · Array · HDF5
NISAR Provisional Radar Raw Signal Science Data (Version 1)The NASA-ISRO Synthetic Aperture Radar (NISAR) Level 0B Radar Raw Signal Data (RRSD) product comprises time-sorted unpacked recordings of raw radar echo pulses and related radar instrument telemetry. It is comparable to the Level 0 raw data products delivered by SAR sensors worldwide (e.g., L1.0 by ESA and JAXA). The RRSD data is focused to a NISAR Radar Single Look Complex (RSLC) product before u
NASA Earthdata CMR2026 · collection
Collaborative Research: Imaging the 3D Viscosity Structure of the Antarctic Mantle with Existing Observations from GPS and Relative Sea LevelGiven the imminent threat posed by rising sea levels across much of the globe, there is a critical need to better understand past, present, and future Antarctic ice mass change and the resulting solid Earth deformation. The latter process is referred to as glacial isostatic adjustment. A key parameter that determines the rate of this deformation is the viscosity of the deforming material. To date,
NASA Earthdata CMR + NASA Data Portal2026 · Image data
OPERA Surface Displacement from Sentinel-1 Static Layers validated product (Version 1)The Observational Products for End-Users from Remote Sensing Analysis (OPERA) Surface Displacement (DISP) from Sentinel-1 (S1) Static Layers (DISP-S1-STATIC) validated product contains static radar geometry layers associated with the OPERA Surface Displacement (DISP) from Sentinel-1 (DISP-S1) validated product. Due to the S1 mission’s narrow orbital tube, radar-geometry layers such as incidence an
NASA Earthdata CMR + NASA Data Portal2026 · Image data
NISAR Beta Range Doppler Unwrapped Interferogram Product (Version 1)The NASA-ISRO Synthetic Aperture Radar (NISAR) Range Doppler Unwrapped Interferogram (RUNW) product represents the unwrapped, ellipsoid- and topography-flattened, multi-looked interferogram generated from two Level 1 Range Doppler Single Look Complex (RSLC) products in the earlier reference acquisition range-Doppler geometry. The RUNW product has a nominal posting of 80 meters on the ground, irres
NASA Earthdata CMR + NASA Data Portal2026 · Image data
NISAR Beta Range Doppler Single Look Complex Product (Version 1)The NASA-ISRO Synthetic Aperture Radar (NISAR) Range Doppler Single Look Complex (RSLC) product is in the zero-Doppler radar geometry convention. The output image is on a grid characterized by constant azimuth time interval and one-way slant range spacing. The output grid is also characterized by a fixed starting slant range, azimuth time interval, and slant range spacing values for easy interpola
NASA Earthdata CMR + NASA Data Portal2026 · Image data
NISAR Beta Range Doppler Pixel Offsets (Version 1)The NASA-ISRO Synthetic Aperture Radar (NISAR) Range Doppler Pixel Offsets (ROFF) product contains a collection of dense pixel offset layers obtained from applying incoherent cross-correlation on a pair of coarsely coregistered Level 1 Range Doppler Single Look Complex (RSLC) products in the range-Doppler geometry of the earlier reference RSLC product. The pair of RSLCs used to produce ROFF is fir
NASA Earthdata CMR + NASA Data Portal2026 · Image data
NISAR Beta Geocoded Single Look Complex Product (Version 1)The NASA-ISRO Synthetic Aperture Radar (NISAR) Geocoded Single Look Complex (GSLC) product is a Level 2 product derived from the Level 1 Range Doppler Single Look Complex (RSLC) product by geocoding the input RSLC into a geocoded map coordinate system such as the UTM/Polar stereographic projection system. The geocoding is performed by inverse mapping of the map coordinates with their topographic h
NASA Earthdata CMR + NASA Data Portal2026 · Image data
NISAR Beta Range Doppler Wrapped Interferogram Product (Version 1)The NASA-ISRO Synthetic Aperture Radar (NISAR) Range Doppler Wrapped Interferogram (RIFG) product represents the ellipsoid and topography flattened wrapped interferogram generated from two Level 1 Range-Doppler Single Look Complex (RSLC) products in the range-Doppler geometry of the earlier reference acquisition. The WGS84 ellipsoid is used as the reference surface for flat earth correction. The R
NASA Earthdata CMR + NASA Data Portal2026 · Image data
NISAR Beta Geocoded Unwrapped Interferogram Product (Version 1)The NASA-ISRO Synthetic Aperture Radar (NISAR) Geocode Unwrapped Interferogram (GUNW) product is a Level 2 product derived from the Range Doppler Wrapped Interferogram (RIFG) and Range Doppler Unwrapped Interferogram (RUNW) products by geocoding the unwrapped phase and associated data layers (i.e., coherence magnitude, ionospheric phase screen) on a geographical grid at 80 m posting. Geocoding is
NASA Earthdata CMR + NASA Data Portal2026 · Image data
NISAR Beta Geocoded Polarimetric Covariance Product (Version 1)The NASA-ISRO Synthetic Aperture Radar (NISAR) Geocoded Polarimetric Covariance (GCOV) product is a Level 2 product derived from the Level 1 Range Doppler Single Look Complex (RSLC). The GCOV product provides terrain-corrected polarimetric covariance projected onto a predefined Universal Transverse Mercator (UTM) or polar stereographic projection system grid. RSLC radar samples, organized as a pol
NASA Earthdata CMR + NASA Data Portal2026 · Image data
NISAR Beta Geocoded Pixel Offsets (Version 1)The NASA-ISRO Synthetic Aperture Radar (NISAR) Geocoded Pixel Offsets (GOFF) product is a Level 2 product derived from the Range Doppler Pixel Offsets (ROFF) product by geocoding the pixel offset layers and its associated data layers (i.e., SNR) on a geographical grid at 80 m posting. Geocoding uses the orbit of the reference Range Doppler Single Look Complex (RSLC) product and a Digital Elevation
NASA Earthdata CMR2025 · Array ·
Collaborative Research: Conference: Conference support for the 2nd RAID Science Planning WorkshopTechnical Abstract The Antarctic ice sheets are a critical element of Earth’s climate system and are undergoing rapid but poorly quantified change. The East Antarctic Ice Sheet is the largest repository of fresh water on the planet and represents the greatest potential contribution to sea-level rise, yet little is known about its thermal and mechanical conditions, as well as its potential for ice-
NASA Earthdata CMR + NASA Data Portal2025 · Image data
OPERA Surface Displacement from Sentinel-1 validated product (Version 1)The Level-3 OPERA Sentinel-1 Surface Displacement (DISP) product is generated through interferometric time-series analysis of Level-2 Coregistered Sentinel-1 Single Look Complex (CSLC) datasets. Using a hybrid Persistent Scatterer (PS) and Distributed Scatterer (DS) approach, this product quantifies Earth's surface displacement in the radar line-of-sight. The DISP products enable the detection of
NASA Earthdata CMR + NASA Data Portal2025 · Image data
OPERA Radiometric Terrain Corrected SAR Backscatter from Sentinel-1 validated product (Version 1)The Observational Products for End-Users from Remote Sensing Analysis (OPERA) Radiometric Terrain Corrected (RTC) SAR Backscatter from Sentinel-1 (S1) validated product consists of radar backscatter normalized with respect to the topography. The product maps signals related to the physical properties of ground scattering objects, such as surface roughness and soil moisture and/or vegetation. The O
NASA Earthdata CMR2025 · collection
Antarctica within Rodinia: Testing the Laurentia ConnectionTechnical Abstract This research evaluates whether the small Coats Land crustal block of East Antarctica is a tectonic tracer linking Kalahari and southern Laurentia within the Neoproterozoic supercontinent of Rodinia across an orogenic suture. A Pan-African (~600 Ma) suture separates the small Coats Land block from the main Mawson Craton indicating that this crustal block had an independent pre-P
NASA Earthdata CMR2025 · collection
Collaborative Research: The Tectonic and Magmatic Structure and Dynamics of Back-arc Rifting in Bransfield Strait: An International Seismic ExperimentOne of the fundamental processes in plate tectonics is the rifting or separating of continental crust creating new seafloors which can widen and ultimately form new ocean basins, the latter is a process known as seafloor spreading. The Bransfield Strait, separating the West Antarctic Peninsula from the South Shetland Islands, formed and is presently widening as a result of the separation of contin
NASA Earthdata CMR2024 · Archive
ALOS-2 PALSAR-2 Level 1 ScanSAR ProductThe Advanced Land Observing Satellite-2 (ALOS-2), launched May 14, 2014, is a follow-on mission to ALOS. ALOS-2 features an imaging microwave radar, PALSAR-2 (Phased Array type L-band Synthetic Aperture Radar-2). With a wider range of observation modes PALSAR-2 improves on its predecessor PALSAR (which flew onboard ALOS). PALSAR-2 observes in the L-band, specifically 1257.5 MHz which is adjustable