Data · collection · 2024
JPSS-2 CrIS IMG: Collocated VIIRS level 1 / cloud mask statistical summary V3.0 (SNDRJ2CrISL1BIMG)
Listed in NASA Earthdata CMR
The Cross-track Infrared Sounder (CrIS) Level 1B Full Spectral Resolution (FSR) data files contain radiance measurements along with ancillary spacecraft, instrument, and geolocation data of the CrIS instrument on the Joint Polar Satellite System-2 (JPSS-2) platform.
Description
This platform is also know as NOAA-21 (National Oceanic and Atmospheric Administration). The IMG product supplements the CrIS Level 1B (L1B) hyperspectral radiance product by providing collocated high-spatial resolution data from the Visible Infrared Imaging Radiometer Suite (VIIRS) imager located on the same platform.
VIIRS radiance and cloud mask values are grouped and aggregated for every CrIS field of view (FOV) and made available in a format intended for use alongside the CrIS L1B data. The collocated VIIRS level 1 / cloud mask statistical summary is the main product and consists of collocated CrIS field of views with the VIIRS cloud mask and radiances/reflectances. This can be thought of as a match-up between CrIS and VIIRS.
Read the rest (3 more)
The supplementary product, array indices for collocated VIIRS observations (collection name SNDRJ2CrISL1BIMGC), consists of array indices for collocated VIIRS observations and provides the collocated indices of the VIIRS pixels within each CrIS footprint. The FSR files have 2,223 channels (*2211 apodized channels): 637 (*633) shortwave channels from 3.9 to 4.7 microns (2555 to 2150 cm-1), 869 (*865) midwave channels from 5.7 to 8.05 microns (1752.5 to 1242.5 cm-1), and 717 (*713)longwave channels from 9.1 to 15.41 microns (1096.25 to 648.75 cm-1).
Each CrIS field-of-regard (FOR) contains 9 field-of-views (FOVs) arranged in a 3X3 array. The Level 1B files contain 30 FORs in the cross track direction and 45 in the along track direction. Data products are constructed on six minute boundaries.
The Visible Infrared Imaging Radiometer Suite (VIIRS) has 22 imaging and radiometric bands covering wavelengths from 0.41 to 12.5 microns. It provides the sensor data records for clouds, sea surface temperature, ocean color, and others. This IMG product primarily contains statistics of the VIIRS cloud mask and VIIRS L1B data within each CrIS footprint.
Links
Get the data
- search.earthdata.nasa.gov /search/granules?p=C3113907977-GES_DISC ↗
Use the Earthdata Search to find and retrieve data sets across multiple data centers.
download · from NASA CMR
- Access the data via HTTPS. sounder.gesdisc.eosdis.nasa.gov/data/JPSS2_Sounder_Level1/SNDRJ2CrISL1BIMG.3.0 ↗
download · from NASA CMR
Where it is published
- disc.gsfc.nasa.gov /datacollection/SNDRJ2CrISL1BIMG_3.0.html ↗
Access the dataset landing page from the GES DISC website.
landing page · from NASA CMR
Documentation and papers
- docserver.gesdisc.eosdis.nasa.gov /repository/Mission/SNPP_Sounder/3.3_ScienceDataProductDocument… ↗
Joint Polar Satellite System (JPSS) Cross-track Infrared Sounder (CrIS) Sensor Data Records (SDR) Algorithm Theoretical Basis Document (ATBD).
documentation · from NASA CMR
- docserver.gesdisc.eosdis.nasa.gov /public/project/SNPP/CrIS_L1B_SNPP.DeltaATBD_V2.0.pdf ↗
NASA SNPP Cross-track Infrared Sounder (CrIS) Level 1B Delta Algorithm Theoretical Basis Document (ATBD)
documentation · from NASA CMR
- docserver.gesdisc.eosdis.nasa.gov /public/project/Sounder/README.beta.SNDRJ2CrISL1BIMGC.v3.0.pdf ↗
NASA SNPP Cross-track Infrared Sounder (CrIS) IMG/IMG_COL Product Users’ Guide
documentation · from NASA CMR
- docserver.gesdisc.eosdis.nasa.gov /repository/Mission/SNPP_Sounder/3.3_ScienceDataProductDocument… ↗
NASA SNPP Cross-track Infrared Sounder (CrIS) Level 1B Quality Flags Description Document
documentation · from NASA CMR
- Sample Image docserver.gesdisc.eosdis.nasa.gov/public/project/Images/SNDRJ2CrISL1BIMG_3.0.png ↗
preview image · from NASA CMR
Catalogue records · 3
- Access the data via the OPeNDAP protocol. cmr.earthdata.nasa.gov/virtual-directory/collections/C3113907977-GES_DISC ↗
metadata API · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3113907977-GES_DISC.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3113907977-GES_DISC.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Brightness Temperature · Cosmic Ray Isotope Spectrometer · Infrared Radiance · Joint Polar Satellite System - 2 · Visible Flux · Visible-Infrared Imager-Radiometer Suite · Visible Radiance
- Inferred from text
- Imaging 75%
Provenance · 1 source records, 18 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3113907977-GES_DISC | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:cris | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:viirs | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/infrared-wavelengths/brightness-temperature | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/infrared-wavelengths/infrared-radiance | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/visible-wavelengths/visible-flux | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/visible-wavelengths/visible-radiance | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:imaging | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[platform].gcmd_platform:noaa-21 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| updated_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |