Array · collection · 2023
VIIRS/NOAA20 Deep Blue Level 3 daily aerosol data, 1 degree x 1 degree grid
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/viirs/aerdb_d3_viirs_noaa20.002
Description
The Visible Infrared Imaging Radiometer Suite (VIIRS) NASA standard Level-3 (L3) daily Deep Blue aerosol products from the NOAA-20 — formerly known as the Joint Polar Satellite System (JPSS-1) — satellite provide satellite-derived measurements of Aerosol Optical Thickness (AOT) and their properties over land and ocean as gridded aggregates with daily global coverage. The Deep Blue algorithm draws its heritage from previous applications to retrieve AOT from the Sea‐viewing Wide Field‐of‐view Sensor (SeaWiFS) over both land and ocean, and the Moderate Resolution Imaging Spectroradiometer (MODIS) measurements over land.
This daily aggregated product (Short-name: AERDB_D3_VIIRS_NOAA20) is derived from the Version-2.0 (V2.0) L2 6-minute swath-based products (AERDB_L2_VIIRS_NOAA20), and is provided in a 1 x 1 degree horizontal resolution grid. Each data field, in most cases, represents the arithmetic mean of all the cells whose latitude and longitude coordinates positions them within each grid element’s bounding limits. Other measures like standard deviation are also provided.
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This aggregated product is derived using only the best-estimate QA-filtered retrievals. Using only cells that were measured on the day of interest, the algorithm requires at least three retrieved measurements to render a given grid as valid on any given day. This daily product record starts from February 17th, 2018.
This L3 daily product, in netCDF, contains 45 Science Data Set (SDS) layers that include the following: 1. Aerosol_Optical_Thickness_550_Land_Count 2. Aerosol_Optical_Thickness_550_Land_Maximum 3.
Aerosol_Optical_Thickness_550_Land_Mean 4. Aerosol_Optical_Thickness_550_Land_Minimum 5. Aerosol_Optical_Thickness_550_Land_Ocean_Count 6.
Aerosol_Optical_Thickness_550_Land_Ocean_Maximum 7. Aerosol_Optical_Thickness_550_Land_Ocean_Mean 8. Aerosol_Optical_Thickness_550_Land_Ocean_Minimum 9.
Aerosol_Optical_Thickness_550_Land_Ocean_Standard_Deviation 10. Aerosol_Optical_Thickness_550_Land_Standard_Deviation 11. Aerosol_Optical_Thickness_550_Ocean_Count 12.
Aerosol_Optical_Thickness_550_Ocean_Maximum 13. Aerosol_Optical_Thickness_550_Ocean_Mean 14. Aerosol_Optical_Thickness_550_Ocean_Minimum 15.
Aerosol_Optical_Thickness_550_Ocean_Standard_Deviation 16. Aerosol_Type_Land_Ocean_Histogram 17. Aerosol_Type_Land_Ocean_Mode 18.
Aerosol_Types 19. Angstrom_Exponent_Land_Maximum 20. Angstrom_Exponent_Land_Mean 21.
Angstrom_Exponent_Land_Minimum 22. Angstrom_Exponent_Land_Ocean_Maximum 23. Angstrom_Exponent_Land_Ocean_Mean 24.
Angstrom_Exponent_Land_Ocean_Minimum 25. Angstrom_Exponent_Land_Ocean_Standard_Deviation 26. Angstrom_Exponent_Land_Standard_Deviation 27.
Angstrom_Exponent_Ocean_Maximum 28. Angstrom_Exponent_Ocean_Mean 29. Angstrom_Exponent_Ocean_Minimum 30.
Angstrom_Exponent_Ocean_Standard_Deviation 31. Fine_Mode_Fraction_550_Ocean_Mean 32. Fine_Mode_Fraction_550_Ocean_Standard_Deviation 33.
Land_Bands 34. Latitude 35. Latitude_1D 36.
Longitude 37. Longitude_1D 38. Ocean_Bands 39.
Spectral_Aerosol_Optical_Thickness_Land_Count 40. Spectral_Aerosol_Optical_Thickness_Land_Mean 41. Spectral_Aerosol_Optical_Thickness_Land_Standard_Deviation 42.
Spectral_Aerosol_Optical_Thickness_Ocean_Count 43. Spectral_Aerosol_Optical_Thickness_Ocean_Mean 44. Spectral_Aerosol_Optical_Thickness_Ocean_Standard_Deviation 45.
Unsuitable_Pixel_Fraction_Land_Ocean Consult the VIIRS Deep Blue Aerosol product user guide for additional information regarding the global attributes, data field attributes, quality flags, software to handle and use these data products, etc.
Links
Get the data
- Data product documentation deepblue.gsfc.nasa.gov/publications ↗
documentation · download · from NASA CMR, data nasa gov
- SNPP VIIRS Deep Blue Aerosol User Guide V1.1 ladsweb.modaps.eosdis.nasa.gov/api/v2/content/archives//Document%20Archive/Science%20Data%20P… ↗
documentation · download · from NASA CMR, data nasa gov
- SNPP VIIRS Deep Blue Aerosol Product ATBD ladsweb.modaps.eosdis.nasa.gov/api/v2/content/archives/Document%20Archive/Science%20Data%20Pr… ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2600305784-LAADS.iso19115 ↗
download · from data nasa gov
- search.earthdata.nasa.gov /search/granules?p=C2600305784-LAADS ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
- Search and order products from LAADS website. ladsweb.modaps.eosdis.nasa.gov/search/order/1/AERDB_D3_VIIRS_NOAA20--5200 ↗
download · from NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/viirs-noaa20-deep-blue-level-3-daily-aerosol-data-1-de… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/viirs/aerdb_d3_viirs_noaa20.002 ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CKAN API data.nasa.gov/api/3/action/package_show?id=bdc897f8-55e2-417d-9f54-3a4826f95… ↗
metadata API · from data nasa gov
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2600305784-LAADS.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2600305784-LAADS.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Aerosol Optical Depth/Thickness · Angstrom Exponent · National Oceanic & Atmospheric Administration-20 · Visible-Infrared Imager-Radiometer Suite
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Atmospheric aerosols 75% · Imaging 75%
Related
Provenance · 2 source records, 20 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2600305784-LAADS | 7 d ago | JSON v1 |
| NASA Data Portal | bdc897f8-55e2-417d-9f54-3a4826f954a1 | 4 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:field:370103 | enrichment · NASA CMR | taxonomy-embedding@1.0.0 | title+keywords+description (75%) |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[instrument].gcmd_instrument:viirs | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/aerosols/aerosol-optical-depth-thickness | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/aerosols/aerosol-optical-depth-thickness/angstrom-exponent | 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-20 | 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 · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |