48 datasets

NASA Earthdata CMR2025 · collection

Thematic collection: Bulk processed ERS-1/2 SAR IMP and Envisat ASAR IMP/APP Precision Level 1 products covering the Scandinavia mountains

NASA Earthdata CMR2025 · collection

Thematic collection: Bulk processed ERS-1/2 SAR IMP and Envisat ASAR IMP/APP Precision Level 1 products covering the Iceland mountains.

NASA Earthdata CMR2025 · collection

Thematic collection: Bulk processed ERS-1/2 SAR IMP and Envisat ASAR IMP/APP Precision Level 1 products covering the European Alps.

NASA Earthdata CMR2025 · collection

Thematic collection: Bulk processed ERS-1/2 SAR IMP and Envisat ASAR IMP/APP Precision Level 1 products covering the Pyrenees mountains

NASA Earthdata CMR2025 · collection

Thematic collection: ESAR OTF bulk processed ERS-1/2 SAR and Envisat ASAR Image Mode Single Look Complex (IMS) Level 1 products covering Italian volcanoes.

NASA Earthdata CMR2025 · collection

Thematic collection: Bulk processed ERS-1/2 SAR and Envisat ASAR Image Mode Single Look Complex (IMS) and Precision (IMP) Level 1 products covering Austria generated by EODC.

NASA Earthdata CMR2025 · collection

Thematic collection: Bulk processed ERS-1/2 SAR IMP and Envisat ASAR IMP/APP Precision Level 1 products covering Alaska Mountains.

NASA Earthdata CMR2022 · Array · NetCDF

This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, contains four, as-complete-as-possible 450 m resolution reference maps of ice component velocities for the Antarctic ice sheet. Maps are available for 1995 – 2001; 2007 – 2009; 2014 – 2017; and 2020 – 2022. Velocities are derived by applying phase analysis and speckle tracking to s

NASA Earthdata CMR2021 · collection

This dataset contains permafrost extent data produced as part of the European Space Agency's (ESA) Climate Change Initiative (CCI) Permafrost project. It forms part of the second version of their Climate Research Data Package (CRDP v2). It is derived from a thermal model driven and constrained by satellite data. Grid products of CDRP v2 are released in annual files, covering the start to the end o

NASA Earthdata CMR2021 · collection

This dataset contains permafrost ground temperature data produced as part of the European Space Agency's (ESA) Climate Change Initiative (CCI) Permafrost project. It forms part of the second version of their Climate Research Data Package (CRDP v2). It is derived from a thermal model driven and constrained by satellite data. Grid products of CDRP v2 are released in annual files, covering the start

NASA Earthdata CMR2021 · collection

This dataset contains permafrost active layer thickness data produced as part of the European Space Agency's (ESA) Climate Change Initiative (CCI) Permafrost project. It forms part of the second version of their Climate Research Data Package (CRDP v2). It is derived from a thermal model driven and constrained by satellite data. Grid products of CDRP v2 are released in annual files, covering the st

NASA Earthdata CMR2021 · collection

This dataset comprises estimates of forest above-ground biomass for the years 2010, 2017 and 2018. They are derived from a combination of Earth observation data, depending on the year, from the Copernicus Sentinel-1 mission, Envisat’s ASAR instrument and JAXA’s Advanced Land Observing Satellite (ALOS-1 and ALOS-2), along with additional information from Earth observation sources. The data has

NASA Earthdata CMR2020 · collection

The ASAR Alternating Polarization Mode Level 0 (Co-polar and Cross-polar H and V) products contain time-ordered Annotated Instrument Source Packets (AISPs) corresponding to one of the three possible polarisation combinations: HH & HV, VV & VH and HH & VV, respectively. The echo samples in the AISPs have been compressed to 4 bits/sample using FBAQ. This is a high-rate, narrow swath mode, so data is

NASA Earthdata CMR2019 · collection

This dataset comprises high spatial- and temporal-resolution maps of coastal landfast sea ice (fast ice) distribution in the vicinity of the Cape Darnley Polynya in East Antarctica, in the June-November (winter-spring) periods of 2008 and 2009. The maps were derived from cross-correlation of pairs of spatially-overlapping Envisat Advanced Synthetic Aperture Radar (ASAR) images, using a modified ve

NASA Earthdata CMR2019 · Array · NetCDF

This data set, as part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, combines interferometric phases from multiple satellite interferometric synthetic-aperture radar systems to derive the first comprehensive phase-based map of Antarctic ice velocity. The precision in ice speed and flow direction over 80% of Antarctica is better than prior mapping

NASA Earthdata CMR2019 · collection

The Level-1B data product offered by ESA from the ASAR Wide-Swath Mode (WS) is the multi-look detected product (ASA_WSM_1P), intended to support applications that exploit intensity data. In order to support the development of new applications with the ASAR ScanSAR data, a WSM product providing phase information has been developed and implemented in the ESA ASAR processor, the Wide-Swath Single-Loo

NASA Earthdata CMR2019 · collection

This strip-line product has been generated from Level 0 data collected when the instrument was in Wide Swath Mode. The product includes slant range to ground range corrections and it covers a continuous area along the imaging swath. It is intended to perform applications-oriented analysis on large scale phenomena over a wide region and for multi-temporal imaging. This is the standard product for A

NASA Earthdata CMR2019 · collection

This ASAR Wave Mode product is created by inverting the cross-spectra which is computed from inter-look processing of the SLC wave imagettes in order to derive the directional ocean product ocean wave spectra. Auxiliary ADSs included with the product remains the same as for the ASAR Wave Mode Cross-Spectra product (_$$ASA_WVS_1P$$ https://earth.esa.int/eogateway/catalog/envisat-asar-wave-imagette-

NASA Earthdata CMR2019 · collection

This data product represents a single-look, complex, slant-range, digital image generated from Level 0 ASAR data collected when the instrument is in Image Mode. Seven possible swaths in HH or VV polarisation are available. The product is primarily intended for use in SAR quality assessment and calibration or applications requiring complex SAR images such as interferometry, and can be used to deriv

NASA Earthdata CMR2019 · collection

This ASAR Wave Mode product is extracted from the combined SLC and Cross Spectra product,(_$$ASA_WVI_1P$$ https://earth.esa.int/eogateway/catalog/envisat-asar-wave-slc-and-cross-spectra-imagettes-l1-asa_wvi_1p-), which is generated from data collected when the instrument was in Wave Mode using the Cross Spectra methodology. The product is meant for Meteo users. The spatial coverage is up to 20 spe

NASA Earthdata CMR2019 · collection

This is the basic Level 1B ASAR Wave Mode product, including up to 400 single-look, complex, slant range, imagettes generated from Level 0 data, and up to 400 imagette power spectra computed using the cross-spectra methodology. The auxiliary parameters used are the most up to date at the time of processing. A minimum number of corrections and interpolations are performed in order to allow the end-

NASA Earthdata CMR2019 · collection

This is a multi-look, ground range, digital Precision Image generated from Level 0 data collected when the instrument was in Image Mode (7 possible swaths HH or VV polarisation). The product includes slant range to ground range correction. It is for users wishing to perform applications-oriented analysis and applies to multi-temporal imaging and to derive backscattering coefficients. The stand-alo

NASA Earthdata CMR2019 · collection

This product has been generated from Level 0 data collected when the instrument was in Global Monitoring Mode. One product covers a full orbit. The product includes slant range to ground range corrections. This strip-line product is the standard for ASAR Global Monitoring Mode. It is processed to approximately 1 km resolution using the SPECAN algorithm. The swath width is approximately 400 km. The

NASA Earthdata CMR2019 · collection

The WS Mode Level 0 product consists of time-ordered AISPs collected while the instrument was is in Wide Swath Mode. The echo samples in the AISPs have been compressed to 4 bits/sample using FBAQ. This is a high-rate, wide swath (ScanSAR) mode so data is only acquired for partial orbit segments and is composed of data from five image swaths (SS1 to SS5). The Level 0 product is produced systematica

NASA Earthdata CMR2019 · collection

The ASAR Image Mode source packets Level 0 data product offers Level 0 data for possible images processing on an other processing site. It includes some mandatory information for SAR processing. The Image Mode Level 0 product consists of time-ordered Annotated Instrument Source Packets (AISPs) collected by the instrument in Image Mode. The echo samples contained in the AISPs are compressed to 4 bi