Array · collection · 2024
PACE SPEXone Level-2 Regional Land 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_RTAPLAND provides aerosol and land‐surface properties over land retrieved using the RemoTAP algorithm. Because RemoTAP jointly models surface and atmosphere over land, the suite also provides spectrally resolved land-surface BRDF and BPDF parameters for reflectance and polarization. Typical uses: air-quality and climate studies, aerosol context for ocean-color/land analyses, radiative transfer, and model evaluation.
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Core geophysical variables in this suite include: - alh — Aerosol layer height (km) - angstrom_440_670 / angstrom_440_870 / angstrom_490_670 — Aerosol Ångström exponents (unitless) - aot / aot550 / aot_fine / aot_coarse — Aerosol optical thickness (unitless) - bpdf_scale, ross_thick, li_sparse, snow_coef — BRDF/BDPF kernel coefficients (unitless) - chla — Chlorophyll-a concentration (mg m⁻³) - fmf / fvf — Aerosol fine mode fraction and fine mode volume fraction (unitless) - lidar_bsca_total / lidar_depol_ratio / lidar_ratio — Aerosol lidar diagnostics (sr⁻¹ m⁻¹, unitless) - mi / mr — Aerosol refractive index (imaginary/real part, unitless) - reff_fine / reff_coarse — Aerosol effective radius (µm) - sph — Aerosol spherical fraction (unitless) - ssa — Aerosol single scattering albedo (unitless) - vd / veff_fine / veff_coarse — Aerosol volume density (µm³ µm⁻²) and effective variance (unitless) - waterfrac_inland — Water fraction for inland pixels (unitless) - wind_speed — Ocean surface wind speed (m s⁻¹)
Links
Get the data
Documentation and papers
- 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 Land Properties, RemoTAP Algorithm - Near Real-time (NRT)
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
- 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
- PACE Homepage earthdata.nasa.gov/data/platforms/space-based-platforms/PACE ↗
documentation · from NASA CMR
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C4126554445-OB_CLOUD.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C4126554445-OB_CLOUD.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Aerosol Particle Properties · Aerosols · Plankton, Aerosol, Cloud, ocean Ecosystem mission · Spectro-polarimeter for Planetary Exploration one
- Inferred from text
- Oceanography 72%
Provenance · 1 source records, 14 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C4126554445-OB_CLOUD | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3708 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (72%) |
| 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 |