CERES and GEO-Enhanced TOA, Within-Atmosphere and Surface Fluxes, Clouds and Aerosols One-Hourly Terra-NPP Edition1A

Description

CER_SYN1deg-1Hour_Terra-NPP_Edition1A is the Clouds and the Earth's Radiant Energy System (CERES) and geostationary (GEO)-Enhanced Top-of-Atmosphere (TOA) Within-Atmosphere and Surface Fluxes, Clouds and Aerosols One-Hourly Terra-Suomi National Polar-orbiting Partnership (NPP) Edition 1A data product. Data was collected using the CERES Imaging Radiometers on Geostationary Satellites; CERES Flight Model 1 (FM1), FM2, CERES Scanner, and Moderate-Resolution Imaging Spectroradiometer (MODIS) on Terra; and FM5, CERES Scanner, and Visible-Infrared Imager-Radiometer Suite (VIIRS) on SUOMI-NPP. Data collection for this product is complete. The CERES Synoptic Radiative Fluxes and Clouds (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 calculated fluxes are produced using the Langley Fu-Liou radiative transfer model. Computations use MODIS, geostationary satellite cloud properties, and atmospheric profiles provided by the 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 one-hourly temporal resolution and 1°-regional spatial scales. Fluxes are provided for clear-sky and all-sky conditions in the long-wave (LW), shortwave (SW), and window (WN) regions. The CERES SYN1deg products use 1-hourly radiances and cloud property data from geostationary (GEO) imagers to model variability between CERES observations accurately. 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 narrow-band 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 NPP satellite on October 28, 2011. The newest CE

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+NPP%2FCERES%2FSYN1DEG-1HOUR_L3.01A
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 CER_SYN1deg-1Hour_Terra-NPP_Edition1A https://doi.org/10.5067/TERRA+NPP/CERES/SYN1DEG-1HOUR_L3.01A
21 Earthdata Search for CER_SYN1deg-1Hour_Terra-NPP_Edition1A (NASA Application to search, discover, visualize, refine, and access NASA Earth Observation data) https://search.earthdata.nasa.gov/search/granules?p=C1424862290-LARC_ASDC
21 How to cite ASDC data https://asdc.larc.nasa.gov/citing-data
33 CERES SYN1deg Data Set Abstract https://asdc.larc.nasa.gov/documents/ceres/guide/cer_syn1deg.pdf
33 Quality Summary: CERES_SYN1deg_Ed1A (10/3/2017) https://ceres.larc.nasa.gov/documents/DQ_summaries/CERES_SYN1deg_Ed1A_DQS.pdf
21 NASA EOS ATB Documents: CERES https://eospso.gsfc.nasa.gov/atbd-category/40
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: 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
33 ASDC List of CERES Examples: Spatial Extent and Scan Modes https://asdc.larc.nasa.gov/documents/ceres/examples.pdf
21 TERRA Overview https://terra.nasa.gov/?section=60
21 NASA Earth Observatory Article: Clouds in the Balance https://earthobservatory.nasa.gov/features/CloudsInBalance
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 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
21 CERES Overview of NPP https://ceres.larc.nasa.gov/instruments/satellite-missions/#npp
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 Ordering 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-1Hour_Terra-NPP_Edition1A https://asdc.larc.nasa.gov/data/CERES/SYN1deg-1Hour/Terra-NPP_Edition1A/
21 OPeNDAP data access for CER_SYN1deg-1Hour_Terra-NPP_Edition1A https://opendap.larc.nasa.gov/opendap/CERES/SYN1deg-1Hour/Terra-NPP_Edition1A/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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