ASDC | CER_SSF_NOAA20-FM6-VIIRS

CERES Level 2

Entry Title: CERES Single Scanner Footprint (SSF) TOA/Surface Fluxes, Clouds and Aerosols NOAA20-FM6-VIIRS Edition1C

Entry ID: CER_SSF_NOAA20-FM6-VIIRS_Edition1C

Aerosols Clouds Radiation Budget

Description

CER_SSF_NOAA20-FM6-VIIRS_Edition1C is the NOAA-20 Single Scanner Footprint (SSF) Clouds and the Earth's Radiant Energy System (CERES) Level 2 observed Top of Atmosphere (ToA) broadband radiances and fluxes Edition1C data product. The last CERES instrument, Flight Model (FM) 6, was launched on board the Joint Polar-Orbiting Satellite System 1 (JPSS-1) satellite, now known as NOAA-20, on November 18, 2017. The data product begins May 1, 2018, 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 FM6 Earth viewing footprints filtered radiances for the total, shortwave (SW), and longwave (LW) broadband channels and the unfiltered SW, LW (determined from the difference between total and SW), and LW channel radiances. The SW, LW, and LW-channel 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.

Besides providing flux observations, the SSF product can be used to understand how clouds and aerosols change the amount of radiation reflected or emitted by the Earth. A follow-on instantaneous gridded product, SSF1deg-Hour, provides similar information on a 1-degree equal area grid.

CERES is a key component of the Earth Observing System (EOS) program. The last CERES instrument, FM6, was launched on board the Joint Polar-Orbiting Satellite System 1 (JPSS-1) satellite, now known as NOAA-20, on November 18, 2017.

DOI

10.5067/NOAA20/CERES/SSF-FM6_L2.001C

Citation Styles for this Dataset

VIEW RELATED INFORMATION

ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)

NASA EOS ATB Documents: CERES

DATA CITATION GUIDELINES

How to cite ASDC data

DATA PRODUCT SPECIFICATION

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

GENERAL DOCUMENTATION

CERES Overview of NOAA-20

PROCESSING HISTORY

CERES Single Scanner Footprint TOA/Surface Fluxes and Clouds (SSF) Data Set Abstract

PRODUCT HISTORY

CERES Input Data Sources

PRODUCT QUALITY ASSESSMENT

Quality Summary: CERES_SSF_NOAA-20_Edition 1C (3/10/2022)

USER'S GUIDE

Single Satellite Footprint TOA/Surface Fluxes and Clouds (SSF) Collection Guide Document Release 2 Version 1

From GCMD Science Keywords:

CLOUD PROPERTIES
ATMOSPHERIC EMITTED RADIATION
CLOUD EMISSIVITY > CLOUD RADIATIVE TRANSFER
LIDAR DEPOLARIZATION RATIO
CLOUD TOP PRESSURE > CLOUD PROPERTIES
CLOUDS
CLOUD OPTICAL DEPTH/THICKNESS > CLOUD MICROPHYSICS
LIDAR
RADIATIVE FLUX
CLOUD FRACTION > CLOUD PROPERTIES
CLOUD DROPLET CONCENTRATION/SIZE > CLOUD MICROPHYSICS
OUTGOING LONGWAVE RADIATION
LIDAR BACKSCATTER
AEROSOLS
AEROSOL OPTICAL DEPTH/THICKNESS
INFRARED WAVELENGTHS
CLOUD RADIATIVE TRANSFER
SURFACE RADIATIVE PROPERTIES
CLOUD MICROPHYSICS
CLOUD BASE HEIGHT > CLOUD PROPERTIES
CLOUD LIQUID WATER/ICE > CLOUD MICROPHYSICS
CLOUD BASE PRESSURE > CLOUD PROPERTIES
ATMOSPHERIC RADIATION

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: Not provided
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

GLOBAL

Temporal Information

Temporal Coverage: 2018-05-01 - Present

Platforms

Earth Observation Satellites

NOAA-20

Joint Polar Satellite System - 1

CERES-FM6

Clouds and the Earth's Radiant Energy System - Flight Model 6

Total Detector Shortwave Detector Longwave Detector

VIIRS

Visible-Infrared Imager-Radiometer Suite

Metadata Dates

Created on 2024-02-23

Last updated on 2024-08-06