Array · collection · 2025
PACE SPEXone Level-3 Global Mapped Aerosol Optical Properties, RemoTAP Algorithm - Near Real-time (NRT) Data, version 4.0
Listed in NASA Earthdata CMR
The Ocean Biology DAAC produces near real-time (NRT) products using the best-available combination of ancillary data from meteorological and ozone data.
Description
As such, the inputs and the calibration used are less than optimal. Near real-time products provide a snapshot of the data during a short time period within a single orbit.
AER_RTAP provides aerosol properties retrieved using the RemoTAP algorithm. The suite includes variables for characterizing aerosol loading, size, and absorption. Use AER_RTAP for air-quality and climate studies, aerosol context for ocean-color atmospheric correction, and model evaluation.
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Geophysical variables in this suite include: - angstrom_440_670 — Aerosol Ångström exponent, 440–670 nm (unitless) - aot — Aerosol optical thickness (unitless) - fmf — Aerosol fine mode fraction (unitless) - fvf — Aerosol fine mode volume fraction (unitless) - lidar_bsca_total — Aerosol lidar backscatter coefficient (sr⁻¹ m⁻¹) - lidar_depol_ratio — Aerosol lidar depolarization ratio (unitless) - lidar_p11_pi — Aerosol phase function p11 at backscatter direction (unitless) - mi — Aerosol refractive index, imaginary part (unitless) - mr — Aerosol refractive index, real part (unitless) - reff_coarse — Aerosol effective radius, coarse mode (µm) - reff_fine — Aerosol effective radius, fine mode (µm) - ssa — Aerosol single scattering albedo (unitless)
Links
Get the data
Documentation and papers
- PACE Homepage earthdata.nasa.gov/data/platforms/space-based-platforms/PACE ↗
documentation · from NASA CMR
- SPEXone Homepage earthdata.nasa.gov/data/instruments/SPEXone ↗
documentation · from NASA CMR
- nasa.github.io /oceandata-notebooks ↗
Satellite data procesing can be difficult. We're here to help! Visit the Oceandata Help Hub to navigate learning content for accessing visualizing, and analyzing data products.
documentation · from NASA CMR
- oceandata.sci.gsfc.nasa.gov /files/atbd/atbd-obdaac-aerosol-from-RemoTAP.pdf ↗
ATBD for Aerosol Optical Properties, RemoTAP Algorithm - Near Real-time (NRT)
documentation · from NASA CMR
- oceandata.sci.gsfc.nasa.gov /files/reprocessing/PACE_SPEXone_V4_Release_Notes.pdf ↗
Product Release Notes for PACE SPEXone, Version 4
documentation · from NASA CMR
- oceandata.sci.gsfc.nasa.gov /files/reprocessing/PACE_Science_Data_V3_Release_Notes.pdf ↗
Product Release Notes for PACE SPEXone, Version 3
documentation · from NASA CMR
- oceandata.sci.gsfc.nasa.gov /files/reprocessing/PACE_Science_Data_V2_Release_Notes.pdf ↗
Product Release Notes for PACE SPEXone, Version 2
documentation · from NASA CMR
- oceandata.sci.gsfc.nasa.gov /files/reprocessing/PACE_Science_Data_V1_Release_Notes.pdf ↗
Product Release Notes for PACE SPEXone, Version 1
documentation · from NASA CMR
Catalogue records · 3
- CMR record cmr.earthdata.nasa.gov/search/concepts/C4126554792-OB_CLOUD.html ↗
catalogue entry · from NASA CMR
- oceandata.sci.gsfc.nasa.gov /opendap ↗
OPeNDAP Site for PACE SPEXone Standard Mapped Image (SMI) Product
metadata API · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C4126554792-OB_CLOUD.umm_json ↗
metadata API · from NASA CMR
Topics
Provenance · 1 source records, 13 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C4126554792-OB_CLOUD | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:spexone | 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-particle-properties | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:pace | 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 |
| 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 |