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Description

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.
Core geophysical variables in this suite include:
• bpdf_scale — Bi-directional surface polarization distribution function scaling parameter (unitless)
• ross_thick — BRDF Ross–Thick kernel coefficient (unitless)
• f_isotropic — Surface isotropic scaling parameter (unitless)
• li_sparse — BRDF Li–Sparse kernel coefficient (unitless)

Version Description

Reprocessing of Ocean Color (OC) Datasets

Product Summary

Platforms
PACE
Instruments
SPEXone
Spatial Extent

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

Location
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
C3555840263-OB_CLOUD
Data State
ACTIVE
Number of Files/Granules
2
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
bpdf_scale Bi-directional surface polarization distribution function scaling parameter N/A float32 -32767 0 to 10 N/A
f_isotropic Surface isotropic scaling parameter N/A float32 -32767 0 to 1 N/A
lat Latitude degrees_north float32 -999 -90 to 90 N/A
li_sparse Bi-directional surface reflectance distribution function li-sparse kernel coefficient N/A float32 -32767 0 to 1 N/A
lon Longitude degrees_east float32 -999 -180 to 180 N/A
palette palette N/A uint8 N/A N/A N/A
ross_thick Bi-directional surface reflectance distribution function ross-thick kernel coefficient N/A int16 -32767 0 to 2 N/A
wavelength wavelengths nm int32 -32767 0 to 20000 N/A
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