OpenSearch

Using the NASA EOSDIS Common Metadata Repository

Collection Search

  • Contours for the Amery Region map dated November 2002.

    https://cmr.earthdata.nasa.gov/search/concepts/C1214308546-AU_AADC.xml
    Description:

    Contours for the Amery Region map published by the Australian Antarctic Data Centre in November 2002 (see link below). This contour data were derived from Russian space photography, ERS-1 and ERS-2 Radar altimeter data (BKG, Germany) and the Antarctic Digital Database, Version 2. Refer to the contour source diagram - digital data (refer to metadata record ERS_CONT_SOURCE_AMERY) or view map (see link below). The contour interval is 500 metres from 500 to 3000 metres. There are also 200 metre contours. ESA's two European Remote Sensing (ERS) satellites, ERS-1 and 2, were launched into the same orbit in 1991 and 1995 respectively. Their payloads included a synthetic aperture imaging radar, radar altimeter and instruments to measure ocean surface temperature and wind fields. ERS-2 added an additional sensor for atmospheric ozone monitoring. The two satellites acquired a combined data set extending over two decades. The ERS-1 mission ended on 10 March 2000 and ERS-2 was retired on 05 September 2011.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -77.1 56 -67.4 80

    AU_AADC Short Name: ERS_CONT_MERGED_AMERY Version ID: 1 Unique ID: C1214308546-AU_AADC

  • Data from the Scatterometer Climate Record Pathfinder

    https://cmr.earthdata.nasa.gov/search/concepts/C1214611941-SCIOPS.xml
    Description:

    Enhanced resolution sigma-0 image data from various historic and present radar scatterometers along with derived products such as sea ice extent, sea ice motion, improved ambiguity selection, melt onset, etc.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    SCIOPS Short Name: Scatt_Climate_Record_Pathfinder Version ID: Not provided Unique ID: C1214611941-SCIOPS

  • Data generated from slope corrected orthometric heights of Antarctica derived from ERS Radar Altimetry

    https://cmr.earthdata.nasa.gov/search/concepts/C1214313453-AU_AADC.xml
    Description:

    Data generated from slope corrected orthometric heights derived from ERS radar altimetry as described in the paper 'A Digital Terrain Ice Model of Antarctica derived by ERS Radar Altimeter Data' by J. Ihde, J. Eck, U. Schirmer. The data products (and their metadata records): the original point data as a shapefile (GRI_ORT_SLC_FIN); a shapefile showing data and no data areas for the original point data (ERS_REL_ANT); a triangulated irregular network (TIN) generated from the point data (ERS_DTM_TIN_ANT); 500 m interval contours interpolated from the TIN (ERS_CONT_500_ANT); a raster grid with 5 km cell size interpolated from the TIN (ERS_DTM_GRID_ANT); a contour shapefile for the Amery Region map published by the Australian Antarctic Data Centre in November 2002 - contours sourced from ERS radar altimetry, the Antarctic Digital Database Version 2 and Russian space photography (ERS_CONT_MERGED_AMERY); a shapefile used for the contour source diagram for the Amery Region map (ERS_CONT_SOURCE_AMERY). ESA's two European Remote Sensing (ERS) satellites, ERS-1 and 2, were launched into the same orbit in 1991 and 1995 respectively. Their payloads included a synthetic aperture imaging radar, radar altimeter and instruments to measure ocean surface temperature and wind fields. ERS-2 added an additional sensor for atmospheric ozone monitoring. The two satellites acquired a combined data set extending over two decades. The ERS-1 mission ended on 10 March 2000 and ERS-2 was retired on 05 September 2011.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -82 -180 -65 180

    AU_AADC Short Name: ERS_DTM Version ID: 1 Unique ID: C1214313453-AU_AADC

  • Digital SAR Mosaic and Elevation Map of the Greenland Ice Sheet, Version 1

    https://cmr.earthdata.nasa.gov/search/concepts/C1386206960-NSIDCV0.xml
    Description:

    The Digital SAR Mosaic and Elevation Map of the Greenland Ice Sheet combines the most detailed synthetic aperture radar (SAR) image mosaic available with the best current digital elevation model. The mosaic image shows both the location of the ice edge and the distribution of melt-related 'scatterers' on the surface. These scatterers include ice lenses and complex layered structure in the percolation zone and bare ice of the ablation zone. Other melt-related features that can be seen include lake and surface meltwater stream channels at lower elevations, as well as ice-marginal lakes. This characterization of the ice sheet provides a reference against which future change can be measured. Changing conditions resulting from climatic variation should show up as changes in the ice margin and shifts in the hydrologic zones. It is hoped that the standard reference provided by this data set can facilitate activities aimed at change detection and promote other work aimed at understanding the processes operating on the ice sheet. The image data are derived from SAR image swaths acquired by the ERS-1 satellite during August of 1992. The mosaic was assembled at the Jet Propulsion Laboratory (JPL) and Goddard Space Flight Center (GSFC). Its component images are a copyrighted product of the European Space Agency. The mosaic, a value-added derived product, is available to individuals and non-profit organizations for research oriented purposes only. The Danish geodetic and cadastral agency Kort-og Matrikelstyrelsen (KMS) compiled the elevation data provided with the product from a number of sources, including field surveys, aerial photographs, and the ERS-1 radar altimeter. The elevation data are also provided only to individuals and non-profit organizations for research oriented purposes. Included with the data is NSIDC's limb (large image map browser) software, which was developed in-house and allows UNIX users to easily select and view portions of the mosaic image with elevation contours derived from the elevation data overlain. Limb is provided as 'freeware' for general use. NSIDC distributes the Digital SAR Mosaic and Elevation Map of the Greenland Ice Sheet on CD-ROM at no charge.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 60 -73 84 -10

    NSIDCV0 Short Name: NSIDC-0052 Version ID: 1 Unique ID: C1386206960-NSIDCV0

  • Digital terrain model of Antarctica in ESRI Grid format, derived from ERS Radar Altimeter data.

    https://cmr.earthdata.nasa.gov/search/concepts/C1214308548-AU_AADC.xml
    Description:

    ESRI formatted raster grid of the Antarctic continental terrain, derived from ERS radar altimeter data. The data is in a Polar Stereographic projection with true scale at 71 degrees South. The grid has 'no data' cells in latitudes south of 82 degrees South and steep areas of the continent, particularly along the coast. ESA's two European Remote Sensing (ERS) satellites, ERS-1 and 2, were launched into the same orbit in 1991 and 1995 respectively. Their payloads included a synthetic aperture imaging radar, radar altimeter and instruments to measure ocean surface temperature and wind fields. ERS-2 added an additional sensor for atmospheric ozone monitoring. The two satellites acquired a combined data set extending over two decades. The ERS-1 mission ended on 10 March 2000 and ERS-2 was retired on 05 September 2011.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -82 -180 -65 180

    AU_AADC Short Name: ERS_DTM_GRID_ANT Version ID: 1 Unique ID: C1214308548-AU_AADC

  • Enhanced resolution C-band sigma-0 images of the earth 1992-2001

    https://cmr.earthdata.nasa.gov/search/concepts/C1214609020-SCIOPS.xml
    Description:

    This ERS AMI scatterometer data set consists of enhanced resolution radar backscatter (sigma0) images of the Earth's surface. Images are generated on polar stereographic and Lambert equal area grids at a pixel resolution of 8.9 km. The images cover from 1992 through January 2001. Sigma0 is the normalized radar backscatter. Images are made from ERS scatterometer data using the Scatterometer Image Reconstruction (SIR) algorithm. For highest possible spatial resolution as well as to ensure full coverage over the images, multiple orbit passes are combined. Images of sigma0 at 40 deg incidence angle (A) in dB and the slope of sigma0 versus incidence angle (B) in dB/deg, along with auxilary parameters, are available. As the first C-band wind scatterometers ERS-1 and ERS-2 helped ] demonstrated the utility of scatterometer data in land and ice studies. The spatial resolution of the original sigma0 measurements is nominally 50 km resolution on a 25 km equally-space grid over a 500 km swath. Originally developed to measure winds over the ocean from space, scatterometer data has proved to be very useful in a variety of studies including polar ice and tropical vegetation. In particular, scatterometer measurements have demonstrated utility in monitoring melting in Greenland, a leading indicator of global warming. Because the scatterometer radar signal can penetrate the surface, a scatterometer can resolve subsurface limate related features in snow pack. For more information link to the Scatterometer Climate Record Pathfinder (SCP) at URL "http://www.scp.byu.edu/" With their rapid global coverage, day or night and all-weather operation, scatterometers offer a unique tools for long-term climate studies. The goal of the SCP is to provide scatterometer-based datasets to researchers involved in climate studies.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    SCIOPS Short Name: ERS_scatt_sigma0_images Version ID: Not provided Unique ID: C1214609020-SCIOPS

  • ERS SAR Data held by the National Institute for Space Research (INPE), Brazil

    https://cmr.earthdata.nasa.gov/search/concepts/C1214585821-SCIOPS.xml
    Description:

    INPE's only receiving station for ERS-1 and ERS-2 SAR is located in Cuiaba, MT (geographic coordinates approx. 15.5S/56.0W). The SAR tapes recorded at Cuiaba are air shipped to the processing and distribution center in Cachoeira Paulista, SP, where they are kept. A copy of all recorded tapes is sent to the ESA PAF at the DLR facilities in Germany. Early ERS-1 SAR data were acquired primarily for station checkout and Principal Investigator service. A small number of passes, 15 seconds to 2 minutes long, were acquired from August, 1991 to March, 1992, during the Commissioning and Ice phases where the repeat cycle was 3 days but the ground coverage was sparse. More extensive and regular acquisitions began in April, 1992, with the satellite already in the so-called Multidisciplinary phase (full ground coverage and 35-day repeat cycle). INPE is allowed to service user requests originated in Brazil only. Only digital products are available. Requests for products and for image search listings will be handled directly by the processing center (listed at the Data Center entry), through contacts by mail, phone or fax. No online remote access is available, although plans exist to implement it, including the International Directory protocols. No firm date is speculated for that, but hopes are that it can be made before 1998. Requests from countries other that Brazil must be routed to the ESA licensed regional distributors. Information can be obtained with the ESA ERS-1 Order Desk, c/o ESRIN, C.P. 64, I-00044 Frascati, Italy. The phone numbers are +39.6.941-80600 (voice) and +39.6.941-80510 (fax).

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -40 -80 8 -33

    SCIOPS Short Name: INPE_ER_SAR Version ID: Not provided Unique ID: C1214585821-SCIOPS

  • ERS-1 10-m Vector Wind Data in netCDF Format

    https://cmr.earthdata.nasa.gov/search/concepts/C1214607679-SCIOPS.xml
    Description:

    The University of Washington Joint Institute for the Study of the Atmosphere and Ocean (JISAO) offers ERS-1 10-m Vector Wind data in netCDF format. The winds were time-spaced filtered and averaged into 1-degree latitude-longitude regions by Mr. Lixin Zeng (lixin@atmos.washington.edu), with the time-space filtering employed to remove spurious features associated with sampling (Zeng and Levy, 1995, J. Geophys. Res.,100,5133-5142). Datasets Available ------------------ - The zonal wind component in netCDF format. (4.2 Mb) - The meridional wind component in netCDF format. (4.2 Mb) This data may be freely downloaded from the JISAO WWW site. Link to: http://jisao.washington.edu/data_sets/ers-1/index.html [Summary Adapted from the JISAO Homepage]

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 45.15 -125.15 49.39 -116.53

    SCIOPS Short Name: JISAO_ERS-1_10M_WIND Version ID: Not provided Unique ID: C1214607679-SCIOPS

  • ERS-1 Gridded Level 3 Enhanced Resolution Sigma-0 from BYU

    https://cmr.earthdata.nasa.gov/search/concepts/C1723369747-PODAAC.xml
    Description:

    This European Remote Sensing (ERS) Sigma-0 dataset is generated by the Scatterometer Climate Record Pathfinder (SCP) project at Brigham Young University (BYU) and is generated using a Scatterometer Image Reconstruction (SIR) technique developed by Dr. David Long at BYU. The dataset provides SIR processed Sigma-0 data from the ERS-1 C-band scatterometer, which is also known as the Active Microwave Instrument (AMI). AMI is a multimode radar operating at a frequency of 5.3 GHz (C-band), using vertically polarized antennas for both transmission and reception. The SIR technique results in an enhanced resolution image reconstruction and gridded on an equal-area grid (for non-polar regions) at 8.9 km pixel resolution stored in SIR files; polar regions are gridded at the same resolution using a polar-stereographic technique. A non-enhanced version is provided at 44.5 km pixel resolution in a format known as GRD (i.e., gridded) files. All files are produced in IEEE formatted binary. All data files are separated and organized by region, parameter, and sampling technique (i.e., SIR vs. GRD). The regions of China and Japan are combined into a single region. In addition to Sigma-0, various statistical parameters are provided for added guidance, including but not limited to: standard deviation, measurement counts, pixel time, Sigma-0 error, and average incidence angle. This dataset was once distributed on tape, but has been made available on FTP thanks to the BYU SCP.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -79.7 -180 88.2 180

    PODAAC Short Name: ERS-1_BYU_L3_OW_SIGMA0_ENHANCED Version ID: 1 Unique ID: C1723369747-PODAAC

  • ERS-1/2 ATSR ARC L2P/L3U [UPA-L2P_GHRSST/L3U_GHRSST]

    https://cmr.earthdata.nasa.gov/search/concepts/C1965336896-ESA.xml
    Description:

    The L2P product contains full resolution dual-view Sea Surface Temperature (SST) values. These SST use the ARC SST retrieval and cloud screening which differ from the methods used to produce the Gridded Surface Temperature (ATS_NR__2P) products. In addition to SST, the L2P products contain the ATSR Saharan Dust Index (ASDI) and the clear-sky probability estimated by the ARC cloud detection algorithm.The L2P processor also generates L3U products; these are the L2P products averaged onto a regular grid at 0.1 degree resolution (they are therefore similar to the AR / Meteo Envisat-format products).The L2P and L3U products are provided in NetCDF-4 format following GHRSST Data Specifications (GDS) v2.The L2P/L3U archive has been reprocessed with a new processor based upon the ARC SST; the changes are outlined in full in the L2P Reprocessing User Note.https://earth.esa.int/documents/10174/481651/AATSR_L2P_Reprocessing_User_Note_v1-0

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -82 -180 82 180

    ESA Short Name: ERS.UPA-L2P-L3U Version ID: NA Unique ID: C1965336896-ESA