Imaging · collection · 2019
DSCOVR EPIC Level 2 EPICAERUV-Fast
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/dscovr/dscovr/dscovr_epic_l2_aerf.01
DSCOVR_EPIC_L2_AER_03 is the Deep Space Climate Observatory (DSCOVR) Enhanced Polychromatic Imaging Camera (EPIC) Level 2 UV Aerosol Version 3 data product.
Description
Observations for this data product are at 340 and 388 nm and are used to derive near UV (ultraviolet) aerosol properties. The EPIC aerosol retrieval algorithm (EPICAERUV) uses a set of aerosol models to account for the presence of carbonaceous aerosols from biomass burning and wildfires (BIO), desert dust (DST), and sulfate-based (SLF) aerosols.
These aerosol models are identical to those assumed in the OMI (Ozone Monitoring Instrument) algorithm (Torres et al., 2007; Jethva and Torres, 2011). Aerosol data products generated by the EPICAERUV algorithm are aerosol extinction optical depth (AOD) and single scattering albedo (SSA) at 340, 388, and 500 nm for clear sky conditions. AOD of absorbing aerosols above clouds is also reported (Jethva et al., 2018).
Read the rest (2 more)
In addition, the UV Aerosol Index (UVAI) is calculated from 340 and 388 nm radiances for all sky conditions. AOD is a dimensionless measure of the extinction of light y aerosols due to the combined effect of scattering and absorption. SSA represents the fraction of extinction solely due to aerosol scattering effects.
The AI is simply a residual parameter that quantifies the difference in spectral dependence between measured and calculated near UV radiances, assuming a purely molecular atmosphere. Because most of the observed positive residuals are associated with the presence of absorbing aerosols, this parameter is commonly known as the UV Absorbing Aerosol Index. EPIC-derived aerosol parameters are reported at a 10 km (nadir) resolution.
Links
Get the data
- Resource doi.org/10.5067/dscovr/dscovr/dscovr_epic_l2_aerf.01 ↗
DOI data set landing page for DSCOVR_EPIC_L2_AERF_01
landing page · download · DOI / persistent id · from NASA CMR, data nasa gov
- How to cite ASDC data asdc.larc.nasa.gov/citing-data ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C3860110024-LARC_CLOUD.iso19115 ↗
download · from data nasa gov
- search.earthdata.nasa.gov /search/granules?p=C3860110024-LARC_CLOUD ↗
Earthdata Search for DSCOVR_EPIC_L2_AERF_01 (NASA Application to search, discover, visualize, refine, and access NASA Earth Observation data)
download · from NASA CMR
- Virtual Directory for DSCOVR_EPIC_L2_AERF_01 cmr.earthdata.nasa.gov/virtual-directory/collections/C3860110024-LARC_CLOUD ↗
download · from NASA CMR
- Resource epic.gsfc.nasa.gov/science/products/uv ↗
download · project · from data nasa gov, NASA CMR
- Resource asdc.larc.nasa.gov/project/DSCOVR ↗
download · project · from data nasa gov, NASA CMR
- PNG asdc.larc.nasa.gov/static/images/project_logos/dscovr.png ↗
download · preview image · from data nasa gov, NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/dscovr-epic-level-2-epicaeruv-fast-a1ab6 ↗
landing page · from data nasa gov
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3860110024-LARC_CLOUD.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=d9de3711-b928-41c9-857c-aff890b68… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3860110024-LARC_CLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Aerosol Optical Depth/Thickness · Aerosols · Atmospheric Chemistry · Cloud Fraction · Cloud Optical Depth/Thickness · Deep Space Climate Observatory · Dust/Ash/Smoke · Energetic Particle and Ion Composition (Geotail) · Particulate Matter · Uv Aerosol Index
- From keywords
- Astronomy & Astrophysics · Chemistry · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Atmospheric sciences 70% · Imaging 75%
Provenance · 2 source records, 27 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3860110024-LARC_CLOUD | 7 d ago | JSON v1 |
| NASA Data Portal | d9de3711-b928-41c9-857c-aff890b685a1 | 4 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3701 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (70%) |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:chemistry | 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:epic | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/aerosols | 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/uv-aerosol-index | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/aerosols/dust-ash-smoke | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/aerosols/particulate-matter | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/clouds/cloud-microphysics/cloud-optical-depth-thickness | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/clouds/cloud-properties/cloud-fraction | 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:dscovr | 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 |