Imaging · collection · 2024
MAIAC Daily V01
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/epic/dscovr/maiac-daily_l2.001
DSOCVR EPIC_L2 MAIAC-Daily_01 contains plots of data generated from DSCOVR_EPIC_L2_MAIAC_03, the DSCOVR EPIC L2 Multi-Angle Implementation of Atmospheric Correction (MAIAC) Version 03 data product.
Description
Data collection for this product is ongoing. The datasets visualized include Aerosol Layer Height (ALH), Aerosol Optical Depth, and Single Scattering Albedo at 340nm, 388nm, 443nm, 551 nm, 680nm, and 780nm.
Level 2 Multi-Angle Implementation of Atmospheric Correction (MAIAC) provides an interdisciplinary suite of products for the Deep Space Climate Observatory (DSCOVR) Earth Polychromatic Imaging Camera (EPIC). The current version 3 reports the following products: a) Atmosphere: cloud mask, global aerosol optical depth at 443nm and 551nm, fine mode fraction (over the ocean), aerosol layer height (ALH) globally, and spectral aerosol absorption for detected biomass burning or mineral dust aerosols.
Read the rest (3 more)
The absorption information includes single scattering albedo at 340-780nm range, imaginary refractive index at 680nm (k0), and Spectral Absorption Exponent (SAE) characterizing spectral increase of imaginary refractive index from Red towards UV wavelengths. The aerosol optical properties {AOD, ALH, k0, SAE} are retrieved simultaneously by matching EPIC measurements in the UV-NIR range, including atmospheric oxygen A- and B-bands. b) Land: atmospherically corrected spectral bidirectional reflectance factors (BRF) along with Lambertian surface reflectance and bidirectional reflectance distribution function (BRDF) for the backscattering view geometries of EPIC.
The BRDF is represented by three parameters of the Ross-Thick Li-Sparse model. c) Ocean: Water leaving reflectance (non-dimensional) at Ultraviolet-Visible (UV-Vis) bands. The parameters are provided at 10 km resolution on a zonal sinusoidal grid with a 1—to 2-hour temporal frequency. MAIAC version 03 also provides gap-filled global composite products for the Normalized Difference Vegetation Index (NDVI) over land and water, leaving reflectance in 5 UV-Vis bands over the global ocean.
The composite products represent a weighted running average where the weight of the latest observation is maximized towards the local noon and low aerosol conditions.
Links
Get the data
- Resource doi.org/10.5067/epic/dscovr/maiac-daily_l2.001 ↗
DOI data set landing page for DSCOVR_EPIC_L2_MAIAC-DAILY_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
- PNG asdc.larc.nasa.gov/static/images/project_logos/dscovr.png ↗
download · preview image · from data nasa gov, NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C3860110100-LARC_CLOUD ↗
Earthdata Search for DSCOVR_EPIC_L2_MAIAC-DAILY_01 (NASA Application to search, discover, visualize, refine, and access NASA Earth Observation data)
download · from NASA CMR
- cmr.earthdata.nasa.gov /virtual-directory/collections/C3860110100-LARC_CLOUD ↗
Virtual Directory for DSCOVR_EPIC_L2_MAIAC-DAILY_01
download · from NASA CMR
- Resource epic.gsfc.nasa.gov/science/pubs ↗
download · project · from data nasa gov, NASA CMR
- Resource asdc.larc.nasa.gov/project/DSCOVR ↗
download · project · from data nasa gov, NASA CMR
- Resource epic.gsfc.nasa.gov ↗
download · project · from data nasa gov, NASA CMR
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C3860110100-LARC_CLOUD.iso19115 ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/maiac-daily-v01-0b4af ↗
landing page · from data nasa gov
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3860110100-LARC_CLOUD.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=3bc87e17-da48-445f-9b10-3ad8e5d30… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3860110100-LARC_CLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Aerosol Absorption · Aerosol Optical Depth/Thickness · Aerosol Particle Properties · Albedo · Deep Space Climate Observatory · Energetic Particle and Ion Composition (Geotail)
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Imaging 75%
Provenance · 2 source records, 21 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3860110100-LARC_CLOUD | 8 d ago | JSON v1 |
| NASA Data Portal | 3bc87e17-da48-445f-9b10-3ad8e5d309d2 | 5 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| 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:epic | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/aerosols/aerosol-absorption | 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-particle-properties | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-radiation/albedo | 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 · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |