OMPS-NPP L2 NM Cloud Pressure and Fraction swath orbital V2 (OMPS_NPP_NMCLDRR_L2) at GES DISC

The OMPS-NPP L2 NM Cloud Pressure and Fraction swath orbital product provides effective cloud fraction and effective cloud pressure retrievals from the Ozone Mapping and Profiling Suite (OMPS) Nadir-Mapper (NM) instrument on the Suomi-NPP satellite. The cloud pressure algorithm retrieves effective cloud pressus, a.k.a optical centroid pressure (OCP) and effective cloud fraction (ECF) using a concept of Mixed Lambert Equivalent Reflectivity (MLER) at 354.1 nm.

Each granule contains data from the daylight portion of each orbit measured for a full day. Spatial coverage is global (-90 to 90 degrees latitude), and there are about 14.5 orbits per day each measuring three limb profiles spaced approximately 250 km in the cross-track direction. The profiles are measured from the ground up to about 80 km with a vertical resolution of the retrieved profiles of approximately 1.8 km.

The files are written using the Hierarchical Data Format Version 5 or HDF5.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated June 23, 2026, 03:38 (UTC)
Created April 1, 2025, 18:19 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 759d4dbc-a051-43c3-bf40-718df020af4f
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/CJAALTQUCLO2
license https://www.usa.gov/government-works
modified 2026-06-15T22:16:03Z
programCode {026:000}
publisher NASA/GSFC/SED/ESD/TISL/GESDISC
resource-type Dataset
source_datajson_identifier true
source_hash 4b4377f559856ed49ccb706f73d29043a8a44e22478242974e506d9c92601836
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -180, "NorthBoundingCoordinate": 90, "EastBoundingCoordinate": 180, "SouthBoundingCoordinate": -90}]]
temporal 2011-11-13/2026-06-15
theme {"Earth Science"}