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OAS accession Detail for 0244196
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accessions_id: 0244196 | archive
Title: GHRSST Level 2P Global Sea Surface Skin Temperature from the Moderate Resolution Imaging Spectroradiometer (MODIS) on the NASA Aqua satellite (GDS2) for 2021-12-14 (NCEI Accession 0244196)
Abstract: NASA produces skin sea surface temperature (SST) products from the Infrared (IR) channels of the Moderate-resolution Imaging Spectroradiometer (MODIS) onboard the Aqua satellite. Aqua was launched by NASA on May 4, 2002, into a sun synchronous, polar orbit with a daylight ascending node at 1:30 pm, formation flying in the A-train with other Earth Observation Satellites (EOS), to study the global dynamics of the Earth atmosphere, land and oceans. MODIS captures data in 36 spectral bands at a variety of spatial resolutions. Two SST products can be present in these files. The first is a skin SST produced for both day and night (NSST) observations, derived from the long wave IR 11 and 12 micron wavelength channels, using a modified nonlinear SST algorithm intended to provide continuity of SST derived from heritage and current NASA sensors. At night, a second SST product is generated using the mid-infrared 3.95 and 4.05 micron wavelength channels which are unique to MODIS; the SST derived from these measurements is identified as SST4. The SST4 product has lower uncertainty, but due to sun glint can only be used at night. MODIS L2P SST data have a 1 km spatial resolution at nadir and are stored in 288 five minute granules per day. Full global coverage is obtained every two days, with coverage poleward of 32.3 degree being complete each day. The production of MODIS L2P SST files is part of the Group for High Resolution Sea Surface Temperature (GHRSST) project and is a joint collaboration between the NASA Jet Propulsion Laboratory (JPL), the NASA Ocean Biology Processing Group (OBPG), and the Rosenstiel School of Marine and Atmospheric Science (RSMAS). Researchers at RSMAS are responsible for SST algorithm development, error statistics and quality flagging, while the OBPG, as the NASA ground data system, is responsible for the production of daily MODIS ocean products. JPL acquires MODIS ocean granules from the OBPG and reformats them to the GHRSST L2P netCDF specification with complete metadata and ancillary variables, and distributes the data as the official Physical Oceanography Data Archive (PO.DAAC) for SST. The R2019.0 supersedes the previous R2014.0 datasets.
Date received: 20211222
Start date: 20211214
End date: 20211214
Seanames: World-Wide Distribution
West boundary: -78.9432
East boundary: 176.859
North boundary: 43.1814
South boundary: -85.0412
Observation types: satellite data
Instrument types: MODIS
Datatypes: CHLOROPHYLL A CONCENTRATION, SEA SURFACE TEMPERATURE, WIND SPEED
Submitter: Armstrong, Edward M.
Submitting institution: US NASA; Jet Propulsion Laboratory; Physical Oceanography Distributed Active Archive Center
Collecting institutions: US NASA; Jet Propulsion Laboratory; Physical Oceanography Distributed Active Archive Center
Contributing projects: GHRSST
Platforms: Aqua (33V4)
Number of observations:
Supplementary information: Descriptive information for this dataset was provided by the GDAC collection search service at https://podaac.jpl.nasa.gov/ws/metadata/dataset?format=iso&itemsPerPage=1&shortName=MODIS_A-JPL-L2P-v2019.0.

In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number.
Availability date:
Metadata version: 2
Keydate: 2021-12-15 13:38:37+00
Editdate: 2021-12-27 13:31:48+00