Array · collection · 2024
PACE HARP2 Level-2 Regional Cloud Optical Properties, GISS Polarimetric Cloud (GPC) 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.
The CLOUD_GPC suite provides cloud properties derived from the GISS Polarimetric Cloud (GPC) algorithm, along with additional variables obtained through combination with the OCI CLOUD suite. Given the novelty of implementing a polarimetric algorithm on a global scale, note that several experimental variables—particularly those intended for diagnostic purposes and future refinement—are included and may change in subsequent, more mature versions.
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Core geophysical variables in this suite include: - cloud_droplet_effective_radius / variance - Cloud droplet effective radius and variance (µm, unitless) - cloud_droplet_number_concentration - Droplet number concentration (combining with OCI CLOUD) (cm⁻³) - cloud_liquid_water_path - Cloud liquid water path (combining with OCI CLOUD) (g m⁻²) - cloud_liquid_index - Index measuring polarized primary bow strength (unitless) - cloud_optical_thickness - Cloud optical thickness (from OCI CLOUD) (unitless) - cloud_bow_extinction_cross_section_Xnm – 355/532 nm extinction cross section based on Cloud Bow retrievals - cloud_bow_lidar_ratio_Xnm – 355/532 lidar ratios based on Cloud Bow retrievals - cloud_rft_* - Retrievals from Rainbow Fourier Transform (experimental and exploratory, intended for future substantial refinements) - cloud_top_properties - Cloud top altitude (m), pressure (hPa), and temperature (K) (from OCI CLOUD)
Links
Get the data
Documentation and papers
- HARP2 Homepage earthdata.nasa.gov/data/instruments/HARP2 ↗
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 HARP2, Version 3 oceandata.sci.gsfc.nasa.gov/files/reprocessing/PACE_Science_Data_V3_Release_Notes.pdf ↗
documentation · from NASA CMR
- Product Release Notes for PACE HARP2, 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 HARP2, Version 1 oceandata.sci.gsfc.nasa.gov/files/reprocessing/PACE_Science_Data_V1_Release_Notes.pdf ↗
documentation · from NASA CMR
- Product Release Notes for PACE HARP2, Version 4 oceandata.sci.gsfc.nasa.gov/files/reprocessing/PACE_HARP2_V4_Release_Notes.pdf ↗
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/C4126552646-OB_CLOUD.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C4126552646-OB_CLOUD.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Clouds · Hyper-Angular Rainbow Polarimeter 2 · Plankton, Aerosol, Cloud, ocean Ecosystem mission
- Inferred from text
- Oceanography 69%
Provenance · 1 source records, 13 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C4126552646-OB_CLOUD | 12 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 (69%) |
| concepts[instrument].gcmd_instrument:harp2 | 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[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 |