Ocean Longwave Radiation Fluxes from GEWEX SRB Project

Global ocean-only fields contain 26 longwave radiative parameters at the surface, Top of Atmosphere, and atmospheric pressure levels. The dataset, produced by the NASA WCRP/GEWEX Surface Radiation Budget Project, provides monthly averages from January 2010 through June 2017. It is an extension of the Release 4 Integrated Product, generated due to a missing input in the main dataset.

Use Cases

• Analyzing outgoing longwave radiation (OLR) trends over global oceans using the TOA upward flux parameters.
• Studying cloud radiative forcing by comparing all-sky, clear-sky, and pristine-sky fluxes at the surface and tropopause.
• Validating climate model simulations of atmospheric heating profiles with upward/downward flux data at 200hPa and 500hPa levels.
• Investigating the impact of cloud properties on longwave radiation using the included status flag for filled cloud data.

Strengths

• Contains 26 specific longwave radiative parameters for detailed energy budget analysis.
• Provides a 7.5-year temporal record from January 2010 to June 2017 for trend assessment.
• Integrates inputs from multiple authoritative sources including ISCCP, SeaFlux, and MERRA-2.

Limitations

• Conflicting last updated dates exist: one source states 2026-03-13, another states 2017-06 30.
• The dataset is limited to ocean-only regions, excluding land and ice-covered areas.
• Specific column names, row counts, and file sizes are not provided by any source.

Provenance

Source

NASA World Climate Research Programme/Global Energy and Water-Cycle Experiment (WCRP/GEWEX) Surface Radiation Budget (SRB) Project.

Collection Method

Derived using a Longwave algorithm with inputs from ISCCP HXS (clouds), ISCCP nnHIRS (meteorology), SeaFlux SST, and MERRA-2.

Time Range

January 2010 through June 2017

Freshness

2026-03-13 02:35:18.362847

Geography

Global ocean-only coverage