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  • HRIR/Nimbus-2 Images of Nighttime Brightness Temperature on 70 mm Film V001 (HRIRN2IM) at GES DISC

    https://cmr.earthdata.nasa.gov/search/concepts/C1273652153-GES_DISC.xml
    Description:

    HRIRN2IM is the Nimbus-2 High-Resolution Infrared Radiometer (HRIR) data product containing scanned negatives of photofacsimile 70mm film strips. The images contain orbital nighttime (3.5 to 4.1 microns) brightness temperature values showing cloud cover and the Earth's surface temperature. Each orbital swath picture is gridded with geographic coordinates and covers a distance approximately from the north pole to the south pole. The images are saved as JPEG 2000 digital files. About 7 days of images are archived into a TAR file. The processing techniques used to produce the data set and a full description of the data are contained in section 3.4.1 of the "Nimbus II Users' Guide. "The HRIR instrument was designed to perform two major functions: first to map the Earth's cloud cover at night to complement the television coverage during the daytime portion of the orbit, and second to measure the temperature of cloud tops and terrain features. This HRIR instrument was launched on the Nimbus-2 satellite and was operational from May 15, 1966 through November 15, 1966. This product was previously available from the NSSDC with the identifier ESAD-00226 (old ID 66-040A-03B).

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

    GES_DISC Short Name: HRIRN2IM Version ID: 001 Unique ID: C1273652153-GES_DISC

  • HRIR/Nimbus-2 Level 1 Meteorological Radiation Data V001 (HRIRN2L1) at GES DISC

    https://cmr.earthdata.nasa.gov/search/concepts/C1273652154-GES_DISC.xml
    Description:

    HRIRN2L1 is the High Resolution Infrared Radiometer (HRIR) Nimbus-2 Level 1 Meteorological Radiance Data (NMRT) product and contains infrared radiances converted to equivalent black-body temperature or "brightness" temperature values. The data, originally written on IBM 360 machines, were recovered from magnetic tapes, also referred to as Nimbus Meteorological Radiation Tapes (NMRT). The data are archived in their original IBM 36-bit word proprietary format, also referred to as a binary TAP file. The HRIR instrument was designed to perform two major functions: first to map the Earth's cloud cover at night to complement the television coverage during the daytime portion of the orbit, and second to measure the temperature of cloud tops and terrain features. The HRIR instrument was launched on the Nimbus-2 satellite and was operational from May 16, 1966 through November 15, 1966. Measurements taken during daytime do not reveal true surface temperatures since the radiometer operates in the 3.5 to 4.1 micron region, and reflected solar radiation is added to emitted surface radiation. However, reflected sunlight in this spectral region does not saturate the radiometer output and usable pictures can be made. This product was previously available from the NSSDC with the identifier ESAD-00108 (old ID 66-040A-03A).

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

    GES_DISC Short Name: HRIRN2L1 Version ID: 001 Unique ID: C1273652154-GES_DISC

  • MRIR/Nimbus-2 Images of Daytime Brightness Temperature on 4 x 5 inch Film Sheets V001 (MRIRN2IM) at GES DISC

    https://cmr.earthdata.nasa.gov/search/concepts/C1273652167-GES_DISC.xml
    Description:

    MRIRN2IM is the Nimbus-2 Medium Resolution Infrared Radiometer (MRIR) data product consisting of 4 x 5 inch photographic film sheets. Each film sheet contains an entire orbit (daylight portion) of brightness temperatures measured at five wavelength bands: 6.4-6.9, 10-11, 14-16, 5-30, and 0.2-4.0 micrometers. There are also associated latitude grids, time, and gray scales representing different temperatures. The images are saved as JPEG 2000 digital files. About 3 weeks of images are archived into a TAR file. The processing techniques used to produce the data set and a full description of the data set are contained in section 4.3.4 of the "Nimbus II Users' Guide." The MRIR experiment measured the intensity and distribution of electromagnetic radiation emitted by and reflected from the earth and its atmosphere in five selected wavelength intervals from 0.2 to 30 micrometers. Data for heat balance of the earth-atmosphere system were obtained, as well as measurements of water vapor distribution, surface or near-surface temperatures, and seasonal changes of stratospheric temperature distribution. The MRIR experiment was successful, and good data were obtained from launch on May 15 1966 until the recorder failed on July 29, 1966. This product was previously available from the NSSDC with the identifier ESAD-00003 (old ID 66-040A-04B).

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

    GES_DISC Short Name: MRIRN2IM Version ID: 001 Unique ID: C1273652167-GES_DISC

  • MRIR/Nimbus-2 Level 1 Meteorological Radiation Data V001 (MRIRN2L1) at GES DISC

    https://cmr.earthdata.nasa.gov/search/concepts/C1273652195-GES_DISC.xml
    Description:

    The Nimbus 2 Medium Resolution Infrared Radiometer (MRIR) was designed to measure electromagnetic radiation emitted and reflected from the earth and its atmosphere at 5 wavelengths. The five wavelengths regions are as follows: * 6.7 to 6.9 microns: This channel covers the 6.7 micron water vapor absorption band. Its purpose is to provide information on water vapor distribution in the upper troposphere and, in conjunction with the other channels to provide relative humidities at these altitudes * 10 to 11 microns: This channel measures surface or near surface temperatures over clear portions of the atmosphere. It also provides cloud cover and cloud height information (day and night). * 14 to 16 microns: This channel, centered about the strong absorption band of C02 at 15 microns, measures radiation which emanates primarily from the stratosphere. * 5 to 30 microns: This channel measures the emitted long wavelength infrared energy and, in conjunction with the reflected solar radiation channel furnishes data on the heat budget of the planet. * 0.2 to 4.0 microns: This channel covers more than 99% of the solar spectrum and yields information on the intensity of the reflected solar energy from the earth and its atmosphere. The Nimbus 2 HRIR data are stored in a binary TAP format (proprietary Tape emulated format) .The MRIR instrument was launched on the Nimbus-2 satellite and was operational from May 15, 1966 through July 28, 1966.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -80.8 -180 80.8 180

    GES_DISC Short Name: MRIRN2L1 Version ID: 001 Unique ID: C1273652195-GES_DISC

  • Nimbus Advanced Vidicon Camera System Remapped Visible Imagery Daily L3, GeoTIFF V001

    https://cmr.earthdata.nasa.gov/search/concepts/C191091721-NSIDC_ECS.xml
    Description:

    This data set (NmAVCS3G) consists of daily image composites constructed from Nimbus 1 (1964) and Nimbus 2 (1966) Advanced Vidicon Camera System (AVCS) imagery for the region between 60 N and 60 S. Data are provided as GeoTIFFs. For the HDF5 formatted version of these data, see <a href="http://dx.doi.org/10.5067/NIMBUS/NmAVCS3H">Nimbus Advanced Vidicon Camera System Remapped Visible Imagery Daily L3, HDF5</a>.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -60 -180 60 180

    NSIDC_ECS Short Name: NmAVCS3G Version ID: 1 Unique ID: C191091721-NSIDC_ECS

  • Nimbus Advanced Vidicon Camera System Remapped Visible Imagery Daily L3, HDF5 V001

    https://cmr.earthdata.nasa.gov/search/concepts/C191091722-NSIDC_ECS.xml
    Description:

    This data set (NmAVCS3H) consists of daily, global image composites constructed from Nimbus 1 (1964) and Nimbus 2 (1966) Advanced Vidicon Camera System (AVCS) imagery. Each composite is provided as a set of three HDF5-formatted files: separate North and South Polar projections in the 5 km Equal-Area Scalable Earth Grid (EASE-Grid) and an equatorial projection in a 10 km equidistant grid for the region between 60 N and 60 S.

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

    NSIDC_ECS Short Name: NmAVCS3H Version ID: 1 Unique ID: C191091722-NSIDC_ECS

  • Nimbus Advanced Vidicon Camera System Visible Imagery L1, HDF5 V001

    https://cmr.earthdata.nasa.gov/search/concepts/C190766001-NSIDC_ECS.xml
    Description:

    The Nimbus Advanced Vidicon Camera System Visible Imagery L1, HDF5 (NmAVCS1H) data set consists of black-and-white images captured by the Advanced Vidicon Camera Systems onboard the Nimbus 1 (1964) and Nimbus 2 (1966) satellites. Data are provided as HDF5-formatted files. Browse images are also available.

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

    NSIDC_ECS Short Name: NmAVCS1H Version ID: 1 Unique ID: C190766001-NSIDC_ECS

  • Nimbus High Resolution Infrared Radiometer Digital Swath Data L1, HDF5 V001

    https://cmr.earthdata.nasa.gov/search/concepts/C1696506410-NSIDC_ECS.xml
    Description:

    The Nimbus High Resolution Infrared Radiometer Digital Swath Data L1, HDF data set (NmHRIR1H) consists of High Resolution Infrared Radiometer (HRIR) brightness temperatures obtained by the Nimbus 1, Nimbus 2, and Nimbus 3 satellites during 1964, 1966, and 1969. A correction has been applied to minimize seemingly random alignment errors that caused clouds edges and land features to appear jagged in the original 1960s data.

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

    NSIDC_ECS Short Name: NmHRIR1H Version ID: 1 Unique ID: C1696506410-NSIDC_ECS

  • Nimbus High Resolution Infrared Radiometer Grayscale Swath Data L1, TIFF V001

    https://cmr.earthdata.nasa.gov/search/concepts/C1703453177-NSIDC_ECS.xml
    Description:

    This data set consists of daily, global grayscale TIFF images derived from radiative temperatures measured in the 3.4 to 4.2 ┬Ám window. These data were detected by the High Resolution Infrared Radiometer (HRIR) on board the Nimbus 1, Nimbus 2, and Nimbus 3 satellites during 1964, 1966, and 1969-1970. The Nimbus HRIR sensor was used to map the earth's nighttime cloud cover and to measure cloud top temperatures or surface temperatures. Note: This data set is not georeferenced and contains some gaps in temporal coverage because of missing data.

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

    NSIDC_ECS Short Name: NmHRIR1T Version ID: 1 Unique ID: C1703453177-NSIDC_ECS

  • Nimbus High Resolution Infrared Radiometer Remapped Digital Data Daily L3, GeoTIFF V001

    https://cmr.earthdata.nasa.gov/search/concepts/C1701027796-NSIDC_ECS.xml
    Description:

    This data set (NmHRIR3G) consists of daily composites constructed from Nimbus 1, Nimbus 2, and Nimbus 3 satellites High Resolution Infrared Radiometer (HRIR) data for the region between 60 N and 60 S. Measurements were obtained during 1964, 1966, and 1969. Data are available as GeoTIFFs and browse images. For the HDF5 formatted version of these data, see the <a href="http://dx.doi.org/10.5067/NIMBUS/NmHRIR3H">Nimbus High Resolution Infrared Radiometer Remapped Digital Data Daily L3, HDF5</a> data set.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -60 -180 60 180

    NSIDC_ECS Short Name: NmHRIR3G Version ID: 1 Unique ID: C1701027796-NSIDC_ECS