Global Inherent Optical Properties from ADEOS-I OCTS Satellite

ADEOS-I OCTS Level-3 Global Binned Inherent Optical Properties (IOP) Data provides per-pixel coefficients describing seawater light absorption and scattering. The dataset, version 2022.0, is produced by OB_CLOUD and contains processed satellite observations from the ADEOS-I mission. The data was last updated in June 1997.

Use Cases

• Modeling underwater light fields using the total absorption coefficient (a) and total backscattering coefficient (bb).
• Estimating phytoplankton biomass by analyzing the phytoplankton absorption coefficient at 443 nm (aph_443).
• Assessing water clarity and dissolved organic matter by examining the combined CDOM and detritus absorption coefficient (adg_443) and its spectral slope (adg_s).
• Studying particulate matter in seawater through the particulate backscattering coefficient at 443 nm (bbp_443) and its spectral shape (bbp_s).
• Evaluating retrieval uncertainty for biogeochemical models using uncertainty columns like aph_unc_443 and bbp_unc_443.

Strengths

• Provides global spatial coverage for oceanographic studies.
• Includes uncertainty estimates for key optical properties like aph_unc_443 and bbp_unc_443.
• Derived using the Generalized Inherent Optical Properties (GIOP) model framework for consistency.

Limitations

• Data is temporally limited, with the last update in 1997, making it unsuitable for contemporary trend analysis.
• The specific row count, column count, and file size are unknown, complicating resource planning.

Provenance

Source

OB_CLOUD, processed from NASA's ADEOS-I OCTS sensor.

Collection Method

Retrieved from spectral Remote Sensing Reflectance (Rrs) using the Generalized Inherent Optical Properties (GIOP) model framework.

Time Range

Coverage corresponds to the ADEOS-I mission period, culminating in data processed by June 1997.

Freshness

Data last updated on 1997-06-30.

Geography

Global ocean coverage.