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Description

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.

Product Summary

Platforms
Suomi-NPP
Instruments
OMPS
Projects
NPP-JPSS
Spatial Extent

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

Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2011-11-13 to Present
Data Partner
Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Terrestrial Information Systems Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/TISL/GESDI
Concept ID
C1701674727-GES_DISC
Data State
ACTIVE
Number of Files/Granules
71344
Processing Level
2
Published
Updated
Science Keywords
Cloud Fraction ,
Cloud Top Pressure

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Joiner, J. (2020). OMPS-NPP L2 NM Cloud Pressure and Fraction swath orbital V2 [Dataset]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/CJAALTQUCLO2 Date Accessed: 2026-10-06

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Publications Citing This Dataset

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Title Authors Year Referenced Datasets
Global retrieval of stratospheric and tropospheric BrO columns from the
  • Chong, Heesung, Gonzalez Abad, Gonzalo, Nowlan, Caroline R., Chan Miller, Christopher, Saiz-Lopez, Alfonso, Fernandez, Rafael P., Kwon, Hyeong-Ahn, Ayazpour, Zolal, Wang, Huiqun, Souri, Amir H., Liu, Xiong, Chance, Kelly, O'Sullivan, Ewan, Kim, Jhoon, Koo, Ja-Ho, Simpson, William R., Hendrick, Francois, Querel, Richard, Jaross, Glen, Seftor, Colin, Suleiman, Raid M.
Global Formaldehyde Products From the Ozone Mapping and Profiler Suite (OMPS) Nadir Mappers on Suomi NPP and NOAA20
  • Nowlan, Caroline R., Gonzalez Abad, Gonzalo, Kwon, HyeongAhn, Ayazpour, Zolal, Chan Miller, Christopher, Chance, Kelly, Chong, Heesung, Liu, Xiong, OSullivan, Ewan, Wang, Huiqun, Zhu, Lei, De Smedt, Isabelle, Jaross, Glen, Seftor, Colin, Sun, Kang
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