ASDC | CER_SSF_NPP-FM5-VIIRS

CERES Level 2

Entry Title: CERES Single Scanner Footprint (SSF) TOA/Surface Fluxes, Clouds and Aerosols NPP-FM5 Edition2B

Entry ID: CER_SSF_NPP-FM5-VIIRS_Edition2B

Aerosols Clouds Radiation Budget

Description

CER_SSF_NPP-FM5-VIIRS_Edition2B is the Suomi National Polar-orbiting Partnership (NPP) Single Scanner Footprint (SSF) Clouds and the Earth's Radiant Energy System (CERES) Level 2 observed Top of Atmosphere (ToA) broadband radiances and fluxes Edition2B data product. The CERES instrument, Flight Model (FM) 5, was launched on board the Suomi NPP satellite on October 28, 2011. The data product begins September 30, 2023, and is in progress. The CERES footprint has a nominal 24-kilometer (km) resolution at nadir and a swath width of approximately 3,000 km. The product provides global coverage over a day.

The SSF granule contains instantaneous CERES FM5 Earth viewing footprints filtered radiances for the total, shortwave (SW), and window (WN) broadband channels and the unfiltered SW, LW (determined from the difference between total and SW), and WN channel radiances. The SW, LW, and WN radiances at spacecraft altitude are converted to Top of Atmosphere (ToA) fluxes based on the Visible Infrared Imaging Radiometer Suite (VIIRS) imager-defined scene. These ToA fluxes are used to estimate surface fluxes. The VIIRS radiances are used with CERES-specific cloud masks and retrievals to provide pixel-level cloud properties, and this data is averaged over the larger CERES footprint for up to two distinct non-overlapping cloud layers. Each cloud layer has properties such as amount, height, temperature, pressure, optical depth, emissivity, phase, water path, and water particle size. Each footprint contains the VIIRS aerosol optical depth and imager radiance values. Only footprints with adequate imager coverage are included on the SSF product, much less than the full set of footprints that can be found on the CERES ERBE-like Instantaneous TOA Estimates (ES8) product.

The product is distributed in hourly network Common Data Format (netCDF) 4 files, each containing approximately six-tenths of an orbit.

DOI

10.5067/NPP/CERES/SSF_NPP-FM5_L2.002B

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DATA QUALITY

Quality Summary: CERES_SSF_NPP Edition 2A (3/17/2022)

GENERAL DOCUMENTATION

CERES General Product Info
CERES Overview of NPP

PROCESSING HISTORY

CERES Data Products Catalog for Edition4-1 Single Scanner Footprint TOA/Surface Fluxes and Clouds (SSF)

USER'S GUIDE

From GCMD Science Keywords:

CLOUD BASE PRESSURE > CLOUD PROPERTIES
CLOUD TOP PRESSURE > CLOUD PROPERTIES
CLOUD TOP TEMPERATURE > CLOUD PROPERTIES
CLOUD BASE TEMPERATURE > CLOUD PROPERTIES
CLOUD TOP HEIGHT > CLOUD PROPERTIES
INFRARED WAVELENGTHS
CLOUD PROPERTIES
SURFACE RADIATIVE PROPERTIES
SHORTWAVE RADIATION
OUTGOING LONGWAVE RADIATION
CLOUD OPTICAL DEPTH/THICKNESS > CLOUD MICROPHYSICS
RADIATIVE FLUX
CLOUD FRACTION > CLOUD PROPERTIES
AEROSOL OPTICAL DEPTH/THICKNESS
CLOUD LIQUID WATER/ICE > CLOUD MICROPHYSICS
SOLAR IRRADIANCE
CLOUD EMISSIVITY > CLOUD RADIATIVE TRANSFER

Cloud Base Pressure
Cloud Infrared Emissivity
Cloud Layer Area
Cloud Overlap
Cloud Particle Phase
Ice Particle Diameter
Ice Water Path
Liquid Water Path
Longwave (LW) Flux
Longwave (LW) Unfiltered Radiance
Shortwave (SW) Flux
Shortwave (SW) Unfiltered Radiance
Surface (Radiative) Flux
Surface Type
TOA (Top of Atmosphere) Flux
Vertical Aspect Ratio
Visible Optical Depth
Water Particle Radius
Window (Wn) Flux
Window (Wn) Unfiltered Radiance

Data Distribution

File Format(s):

netCDF-4

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Spatial Information

Spatial Coverage: (S: -90, N: 90), (W: -180, E: 180)
Spatial Coverage Type: Horizontal
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

GLOBAL

Temporal Information

Temporal Coverage: 2023-09-30 - Present

Platforms

Earth Observation Satellites

Suomi-NPP

Suomi National Polar-orbiting Partnership

CERES-FM5

Clouds and the Earth's Radiant Energy System - Flight Model 5

Total Detector Shortwave Detector Window Detector

VIIRS

Visible-Infrared Imager-Radiometer Suite

Metadata Dates

Created on 2025-01-29