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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
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
69286
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 [Data set]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/CJAALTQUCLO2 Date Accessed: 2026-05-01

Documents

READ-ME

Publications Citing This Dataset

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Title Year Author Topic
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. Atmospheric Ozone, Land Use/Land Cover Classification, Cloud Fraction, Cloud Top Pressure, ULTRAVIOLET RADIANCE, Sea Level Pressure, Surface Pressure, U/V Wind Components, U/V Wind Components, Potential Vorticity, Vertical Wind Velocity/Speed, Vertical Profiles, Upper Air Temperature, Air Temperature, Relative Humidity, Specific Humidity, Atmospheric Water Vapor, Cloud Liquid Water/Ice, Altitude, Geopotential Height, Ozone Profiles, Albedo, Anisotropy, Reflectance, Surface Temperature, Skin Temperature, Dew Point Temperature, Cloud Top Temperature, Atmospheric Winds, Surface Winds, Upper Level Winds, Atmospheric Pressure, Sea Level Pressure, Total Precipitable Water, Oxygen Compounds, Boundary Layer Winds, Total Ozone
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 Cloud Fraction, Cloud Top Pressure, Formaldehyde, Atmospheric Ozone, ULTRAVIOLET RADIANCE, Albedo, Anisotropy, Reflectance, Geopotential Height, Altitude, Surface Temperature, Skin Temperature, Upper Air Temperature, Dew Point Temperature, Air Temperature, Cloud Top Temperature, Atmospheric Winds, Surface Winds, U/V Wind Components, Upper Level Winds, U/V Wind Components, Vertical Wind Velocity/Speed, Atmospheric Pressure, Sea Level Pressure, Sea Level Pressure, Surface Pressure, Specific Humidity, Total Precipitable Water, Cloud Liquid Water/Ice, Atmospheric Water Vapor, Oxygen Compounds, Boundary Layer Winds, Total Ozone
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