CERES and GEO-Enhanced TOA, Within-Atmosphere, and Surface Fluxes Clouds and Aerosols Monthly Terra Edition4A

Description

CER_SYN1deg-Month_Terra-MODIS_Edition4A is the Clouds and the Earth's Radiant Energy System (CERES) and and geostationary (GEO)-Enhanced Top of Atmosphere (TOA), Within-Atmosphere and Surface Fluxes Clouds and Aerosols Monthly Terra Edition4A data product, which was collected using Imaging Radiometers on Geostationary Satellites platform as well as CERES Flight Model 1 (FM1), CERES FM2, and MODIS on Terra. Data collection for this product is complete. CERES Synoptic (SYN) 1-degree products provide CERES-observed temporally interpolated TOA radiative fluxes and coincident MODIS-derived cloud and aerosol properties and include geostationary-derived cloud properties and broadband fluxes that have been carefully normalized with CERES fluxes to maintain the CERES calibration. They also contain computed initial TOA, in-atmosphere, surface fluxes, and computed fluxes adjusted or constrained to the CERES-observed TOA fluxes. The computed fluxes are produced using the Langley Fu-Liou radiative transfer model. Computations use MODIS, geostationary satellite cloud properties, and atmospheric profiles provided by the NASA Global Modeling and Assimilation Office (GMAO). The adjustments to clouds and atmospheric properties are also provided. The computations are for all-sky, clear-sky, pristine (clear-sky without aerosols), and all-sky without aerosol conditions. This product offers parameters on a three-hourly temporal resolution and 1°-regional spatial scales. Fluxes are provided for clear-sky and all-sky conditions in the longwave (LW), shortwave (SW), and window (WN) regions. CERES SYN1deg products use 1-hourly radiances and cloud property data from geostationary (GEO) imagers to accurately model variability between CERES observations. Several steps are involved in using GEO data to enhance diurnal sampling. First, GEO radiances are cross-calibrated with the MODIS imager using only data that is coincident in time and ray-matched in angle. Next, the GEO cloud retrievals are inferred from the calibrated GEO radiances. The GEO radiances are converted from narrowband to broadband using empirical regressions and then to broadband GEO TOA fluxes using Angular Distribution Models (ADMs) and directional models. A normalization technique ensures GEO and CERES TOA fluxes are consistent. Instantaneous matched gridded fluxes from CERES and GEO are regressed against one another over a month from 5°x5 ° latitude-longitude regions. The regression relation is then applied to all GEO fluxes to remove biases that depend upon cloud amount, solar and view zenith angles, and regional dependencies. The regional means are determined for 1° equal-angle grid boxes calculated by first interpolating each parameter for any missing times of the CERES/GEO observations to produce a complete 1-hourly time series for the month. Monthly means are calculated using the combination of observed and interpolated parameters from all days containing at least one CERES observation. CERES is a key Earth Observing System (EOS) program component. The CERES instruments provide radiometric measurements of the Earth's atmosphere from three broadband channels. The CERES missions follow the successful Earth Radiation Budget Experiment (ERBE) mission. The first CERES instrument, the protoflight model (PFM), was launched on November 27, 1997, as part of the Tropical Rainfall Measuring Mission (TRMM). Two CERES instruments (FM1 and FM2) were launched into polar orbit on board the Earth Observing System (EOS) flagship Terra on December 18, 1999. Two additional CERES instruments (FM3 and FM4) were launched on board Earth Observing System (EOS) Aqua on May 4, 2002. The CERES FM5 instrument was launched on board the Suomi National Polar-orbiting Partnership (NPP) satellite on October 28, 2011. The newest CERES instrument (FM6) was launched on board the Joint Polar-Orbiting Satellite System 1 (JPSS-1) satellite, now called NOAA-20, on November 18, 2017.

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FTERRA%2FCERES%2FSYN1DEGMONTH_L3.004A
21 CERES project home page https://ceres.larc.nasa.gov/
21 ASDC Data and Information for CERES https://asdc.larc.nasa.gov/project/CERES
21 DOI data set landing page for CERES SYN 1 degree Month Level 3 Edition 4A data products https://doi.org/10.5067/TERRA+AQUA/CERES/SYN1DEGMONTH_L3.004A
21 Earthdata Search for CER_SYN1deg-Month_Terra-MODIS_Edition4A (NASA Application to search, discover, visualize, refine, and access NASA Earth Observation data) https://search.earthdata.nasa.gov/search/granules?p=C1419910530-LARC_ASDC
57 Read Software Package - SYN1deg - Direct File Download (.zip) https://asdc.larc.nasa.gov/documents/ceres/read_software/TISAavg_SampleRead_SYN1deg_R5-922.zip
33 CERES SYN1deg Data Set Abstract https://asdc.larc.nasa.gov/documents/ceres/guide/cer_syn1deg.pdf
21 How to cite ASDC data https://asdc.larc.nasa.gov/citing-data
33 Quality Summary: CERES_SYN1deg_Ed4A (10/3/2017) https://ceres.larc.nasa.gov/documents/DQ_summaries/CERES_SYN1deg_Ed4A_DQS.pdf
21 NASA EOS ATB Documents: CERES https://eospso.gsfc.nasa.gov/atbd-category/40
21 NASA Earth Observeratory Article: A Delicate Balance: Signs of Change in the Tropics - New data sets were also used from NASA's Clouds and the Earth's Radiant Energy System (CERES) instruments that fly aboard the Tropical Rainfall Measuring... https://earthobservatory.nasa.gov/features/DelicateBalance/balance2.php
21 NASA Earth Observatory Article: Aqua CERES First Light: Image of the Day - The Clouds and the Earth's Radiant Energy System (CERES) instrument is one of six on board the Aqua satellite. https://earthobservatory.nasa.gov/images/2654/aqua-ceres-first-light
21 NASA Earth Observatory Article: CERES Detects Earth's Heat and Energy: Image of the Day - Clouds and the Earth's Radiant Energy System (CERES) monitors solar energy reflected from the Earth and heat energy emitted from the Earth. https://earthobservatory.nasa.gov/images/563/ceres-detects-earths-heat-and-energy
21 NASA Earth Observatory Article: CERES Global Cloud Fraction - Each map combines observations from the CERES sensors on NASA's Terra and Aqua satellites collected on December 27, 2008 https://earthobservatory.nasa.gov/images/36518/ceres-global-cloud-fraction
21 NASA Earth Observatory Article: Does the Earth Have an Iris Analog - Sensors on the TRMM and Terra satellite missions routinely measure these cloud physical properties, which scientists will match in time and space with CERES. https://earthobservatory.nasa.gov/features/Iris/iris3.php
21 NASA Earth Observatory Article: First Monthly CERES Global Longwave and Shortwave Radiation - These measurements were acquired by NASA's Clouds and the Earth's Radiant Energy System (CERES) sensors during March 2000. https://earthobservatory.nasa.gov/images/600/first-monthly-ceres-global-longwave-and-shortwave-radiation
21 NASA Earth Observatory Article: Net Radiation - The measurements were made by the Clouds and the Earth's Radiant Energy System (CERES) sensors on NASA's Terra and Aqua satellites. https://earthobservatory.nasa.gov/global-maps/CERES_NETFLUX_M
21 NASA Earth Observatory Article: Space-based Observations of the Earth (Thermal radiation emitted from the Earth's surface and clouds on March 1, 2000 as seen by the Clouds and Earth's Radiant Energy System (CERES)) https://earthobservatory.nasa.gov/features/Observing/obs_5.php
21 NASA Earth Observatory Article: Terra Spacecraft Fact Sheet - Clouds and the Earth's Radiant Energy System (CERES) CERES will measure the Earth's energy balance—comparing the amount of energy from the sun that... https://earthobservatory.nasa.gov/features/AM1/terra_animations.php
21 NASA Earth Observatory Article: The Arctic Is Absorbing More Sunlight - The radiation measurements were made by NASA's Clouds and the Earth's Radiant Energy System (CERES) instruments which fly on multiple satellites. https://earthobservatory.nasa.gov/images/84930/the-arctic-is-absorbing-more-sunlight
21 NASA Earth Observatory Article: The Water Cycle - MODIS, CERES, and AIRS all collect data relevant to the study of clouds. https://earthobservatory.nasa.gov/features/Water/page4.php
21 NASA Earth Observatory Article: Tropical Cloud Systems and CERES: Image of the Day - CERES detects the amount of outgoing heat and reflected sunlight leaving the planet. https://earthobservatory.nasa.gov/images/2984/tropical-cloud-systems-and-ceres
21 Overview of HDF https://asdc.larc.nasa.gov/tools-and-services
21 Overview of view hdf: A Visualization and Analysis Tool for HDF Files https://asdc.larc.nasa.gov/tools-and-services
33 ASDC List of CERES Examples: Spatial Extent and Scan Modes https://asdc.larc.nasa.gov/documents/ceres/examples.pdf
21 CERES Documentation https://ceres.larc.nasa.gov/data/documentation/
21 CERES Documentation: Data Products Catalog https://ceres.larc.nasa.gov/data/documentation/#data-products-catalog
21 CERES General Product Info https://ceres.larc.nasa.gov/data/general-product-info/
21 CERES Input Data Sources https://ceres.larc.nasa.gov/data/general-product-info/#ceres-input-data-sources
21 CERES Overview of Terra https://ceres.larc.nasa.gov/instruments/satellite-missions/#terra
33 CERES/Terra Regional Mean TOA Flux Uncertainties https://asdc.larc.nasa.gov/documents/ceres/readme/region_mean_attach_C.pdf
21 View HDF Version 5 Readme https://asdc.larc.nasa.gov/documents/ceres/readme/README.txt
33 View HDF: A Visualization and Analysis Tool for HDF Files (overview of and resources for using view_hdf) https://asdc.larc.nasa.gov/documents/ceres/readme/view_hdf.pdf
21 CERES Data Page https://ceres.larc.nasa.gov/data/#syn1deg-level-3
21 CERES Order Tool https://ceres-tool.larc.nasa.gov/ord-tool/jsp/SYN1degEd41Selection.jsp
34 Mission Logo https://asdc.larc.nasa.gov/static/images/project_logos/ceres.png
21 ASDC Direct Data Download for CER_SYN1deg-Month_Terra-MODIS_Edition4A https://asdc.larc.nasa.gov/data/CERES/SYN1deg-Month/Terra-MODIS_Edition4A/
21 OPeNDAP data access for CER_SYN1deg-Month_Terra-MODIS_Edition4A https://opendap.larc.nasa.gov/opendap/CERES/SYN1deg-Month/Terra-MODIS_Edition4A/contents.html

Tags

  • atmospheric-radiation
  • biosphere
  • national-geospatial-data-asset
  • atmospheric-water-vapor
  • aerosols
  • atmosphere
  • atmospheric-temperature
  • ngda
  • vegetation
  • atmospheric-pressure
  • clouds
  • earth-science

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