Array · collection · 2024
PACE OCI Level-2 Regional Cloud Optical Properties - Near Real-time (NRT) Data, version 3.1
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.
The CLOUD data suite provides per-pixel microphysics and macrophysics to support cloud/climate applications. Typical uses: screening clouds for atmospheric correction, evaluating cloud–radiation interactions, and joint analyses with ocean-color variables (e.g., chlorophyll, Rrs).
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- NOTE - All CLOUD L2 and L3 files with acquisition dates on or after May 1, 2026, include the following additional products cer_16_21, cwp_16_21, cot_16_21. These products will be extended to the full mission record during a future reprocessing of the OCI CLOUD L2 and L3 product suites. Core geophysical variables in this suite include: - cloud_fraction — Cloud fraction (unitless; 0–1) - ice_cloud — Ice cloud fraction (unitless; 0–1) - water_cloud — Water cloud fraction (unitless; 0–1) - cer_16 / cer_21 / cer_22 — Cloud particle effective radius (µm) retrieved from two-channel methods using near-IR bands (1.6, 2.1, or 2.2 µm) paired with a non-absorbing band - cot_16 / cot_21 / cot_22 — Cloud optical thickness (unitless) retrieved from two-channel methods using near-IR bands - cwp_16 / cwp_21 / cwp_22 — Cloud water path (g m⁻²) retrieved from two-channel methods using near-IR bands - cth — Cloud top height (m) - ctp — Cloud top pressure (hPa) - ctt — Cloud top temperature (K) ARRAY(0x559cebcee688)
Links
Get the data
Documentation and papers
- OCI Homepage earthdata.nasa.gov/data/instruments/OCI ↗
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
- Product Release Notes for PACE OCI, Version 3 oceandata.sci.gsfc.nasa.gov/files/reprocessing/PACE_OCI_V3_Release_Notes.pdf ↗
documentation · from NASA CMR
- Product Release Notes for PACE OCI, Version 2 oceandata.sci.gsfc.nasa.gov/files/reprocessing/PACE_Science_Data_V2_Release_Notes.pdf ↗
documentation · from NASA CMR
- Product Release Notes for PACE OCI, Version 1 oceandata.sci.gsfc.nasa.gov/files/reprocessing/PACE_Science_Data_V1_Release_Notes.pdf ↗
documentation · from NASA CMR
- oceandata.sci.gsfc.nasa.gov /files/atbd/legacy/atbd-obdaac-cloud-optical-properties.pdf ↗
ATBD for Cloud Optical Properties - Near Real-time (NRT)
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/C3620139797-OB_CLOUD.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3620139797-OB_CLOUD.umm_json ↗
metadata API · from NASA CMR
Topics
Provenance · 1 source records, 16 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3620139797-OB_CLOUD | 7 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:oci | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/clouds | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/clouds/cloud-microphysics | 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 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/visible-wavelengths | 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 |