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Description

The Hyper-Angular Rainbow Polarimeter #2 (HARP2) instrument, flying aboard the PACE spacecraft, is a wide-angle imaging polarimeter designed to measure aerosol particles and clouds, as well as properties of land and water surfaces. HARP2 will combine data from multiple along-track viewing angles (up to 60), four spectral bands in the visible and near infrared ranges, and three angles of linear polarization to measure the microphysical properties of the atmospheric particles including their size distribution, amount, refractive indices and particle shape. The Ocean Biology DAAC produces near real-time (quicklook) products using the best-available combination of ancillary data from meteorological and ozone data. As such, the inputs and the calibration used are less than optimal. Quicklook products provide a snapshot of the data during a short time period within a single orbit.

Version Description

Reprocessing of Ocean Color (OC) Datasets

Product Summary

Platforms
PACE
Instruments
HARP2
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Geographic Region
GLOBAL OCEAN
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2024-02-05 to Present
Data Partner
Ocean Biology Processing Group (OBPG) ,
Ocean Biology Distributed Active Archive Center (OB.DAAC), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/GCDC/OB.DAAC)
Concept ID
C3600170019-OB_CLOUD
Data State
ACTIVE
Number of Files/Granules
330
Processing Level
3
Published
Updated
Science Keywords
Ocean Color

Documents

Variables

Variables are a set of physical properties whose values determine the characteristics or behavior of something. For example, temperature and pressure are variables of the atmosphere. Parameters and variables can be used interchangeably. Variable level attributes provide individual information for each variable.

The Name in this table is the variable name. Fill value indicates missing or undefined data points in a variable. Valid range is the range of values the variable can store. Scale factor is used to increase or decrease the size of an object and can be used to correct for distortion. For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor
cloud_bow_droplet_effective_radius Cloud droplet effective radius obtained using Cloud Bow. N/A float32 -32767 3 to 53.400001525879 N/A
cloud_bow_droplet_effective_variance Cloud droplet effective variance obtained using Cloud Bow. micron float32 -32767 0.0015000000130385 to 0.5 N/A
cloud_bow_fit_correlation Correlation of data fit to retrieved cloud droplet radius and variance obtained using Cloud Bow. N/A float32 -32767 -1 to 1 N/A
cloud_bow_rms Root mean square of data fit to retrieved cloud droplet radius and variance obtained using Cloud Bow. N/A float32 -32767 0 to 300 N/A
cloud_liquid_index Index indicating the strength of the primary rainbow in the observed polarized reflectances owing to scattering on liquid drops N/A float32 -32767 -10 to 10 N/A
cloud_rft_mode_fraction_0 Cloud droplet modes effective radius from RFT retrievals for mode 0. micron float32 -32767 0 to 100 N/A
cloud_rft_mode_fraction_1 Cloud droplet modes effective radius from RFT retrievals for mode 1. micron float32 -32767 0 to 100 N/A
lat Latitude degrees_north float32 -999 -90 to 90 N/A
lon Longitude degrees_east float32 -999 -180 to 180 N/A
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