This set of layers show CERES-observed temporally interpolated and spatially gridded surface incoming and outgoing observed flux or radiance (W/m2) contained within the SYN1deg product, which is a primary input to the EBAF product. Each layer is specific to a broadband channel (longwave: 3.5-50 µm, shortwave: 0.2-5 µm), under all-sky conditions or clear-sky conditions. CERES footprints (20 km nominal resolution) are classified as clear if they contain 99% of pixels identified as clear by the CERES-MODIS clear-sky mask.
The Clouds and the Earth’s Radiant Energy System (CERES) instruments are a collection of instruments carried on different satellites, the first launched in 1999 (Terra) as a follow-on to the successful Earth Radiation Budget Experiment (ERBE) mission, and as a flagship component of the Earth Observing System (EOS) program. The second satellite (Aqua) was launched in 2002. There are two identical CERES instruments aboard both the Terra and Aqua satellites, that measure the Earth's total radiation budget and provide cloud property estimates that enable scientists to assess clouds' roles in radiative fluxes from the surface to the top of the atmosphere. One of the instruments operates in a cross-track scan mode and the other in a biaxial scan mode. The cross-track mode data is what is used to align the CERES measurements with ERBE and the Tropical Rainfall Measuring Mission (TRMM), essentially extending the data record. For observations derived from the Terra and Aqua satellite instruments, the measurements are diurnally averaged using ERBE (constant meteorology) flux temporal interpolation algorithm to interpolate between the instruments, which make passes over the earth at varying times.
The Untuned Longwave | Shortwave Surface Flux, Up | Down, All-Sky | Clear-Sky layers are available from the CERES instruments on the Terra and Aqua satellites. The sensor resolution is 1 degree, imagery resolution is 2 km, and the temporal resolution is monthly.
Data parameters:
Untuned_Total_Sky_LW_Surface_Down - Untuned Longwave Surface Flux (Monthly, Down, All-Sky)
Untuned_Clear_Sky_LW_Surface_Down - Untuned Longwave Surface Flux (Monthly, Down, Clear-Sky)
Untuned_Total_Sky_LW_Surface_Up - Untuned Longwave Surface Flux (Monthly, Up, All-Sky)
Untuned_Clear_Sky_LW_Surface_Up - Untuned Longwave Surface Flux (Monthly, Up, Clear-Sky)
Untuned_Total_Sky_SW_Surface_Down - Untuned Shortwave Surface Flux (Monthly, Down, All-Sky)
Untuned_Clear_Sky_SW_Surface_Down - Untuned Shortwave Surface Flux (Monthly, Down, Clear-Sky)
Untuned_Total_Sky_SW_Surface_Up - Untuned Shortwave Surface Flux (Monthly, Up, All-Sky)
Untuned_Clear_Sky_SW_Surface_Up - Untuned Shortwave Surface Flux (Monthly, Up, Clear-Sky)
Data product: CER_SYN1deg-Month_Terra-Aqua-MODIS_Edition4A
This set of layers show CERES-observed temporally interpolated and spatially gridded diffuse and direct observed shortwave flux (W/m2) contained within the SYN1deg product, which is a primary input to the EBAF product. These layers are for the shortwave broadband channel (0.2-5 µm), under all-sky conditions or clear-sky conditions. CERES footprints (20 km nominal resolution) are classified as clear if they contain 99% of pixels identified as clear by the CERES-MODIS clear-sky mask.
The Clouds and the Earth’s Radiant Energy System (CERES) instruments are a collection of instruments carried on different satellites, the first launched in 1999 (Terra) as a follow-on to the successful Earth Radiation Budget Experiment (ERBE) mission, and as a flagship component of the Earth Observing System (EOS) program. The second satellite (Aqua) was launched in 2002. There are two identical CERES instruments aboard both the Terra and Aqua satellites, that measure the Earth's total radiation budget and provide cloud property estimates that enable scientists to assess clouds' roles in radiative fluxes from the surface to the top of the atmosphere. One of the instruments operates in a cross-track scan mode and the other in a biaxial scan mode. The cross-track mode data is what is used to align the CERES measurements with ERBE and the Tropical Rainfall Measuring Mission (TRMM), essentially extending the data record. For observations derived from the Terra and Aqua satellite instruments, the measurements are diurnally averaged using ERBE (constant meteorology) flux temporal interpolation algorithm to interpolate between the instruments, which make passes over the earth at varying times.
The Diffuse | Direct Shortwave Surface Flux (All-Sky | Clear-Sky) layers are available from the CERES instruments on the Terra and Aqua satellites. The sensor resolution is 1 degree, imagery resolution is 2 km, and the temporal resolution is monthly.
Data parameters:
Total_Sky_SW_Surface_Flux_Diffuse - Diffuse Shortwave Surface Flux (Monthly, All-Sky)
Clear_Sky_SW_Surface_Flux_Diffuse - Diffuse Shortwave Surface Flux (Monthly, Clear-Sky)
Total_Sky_SW_Surface_Flux_Direct - Direct Shortwave Surface Flux (Monthly, All-Sky)
Clear_Sky_SW_Surface_Flux_Direct - Direct Shortwave Surface Flux (Monthly, Clear-Sky)
Data product: CER_SYN1deg-Month_Terra-Aqua-MODIS_Edition4A
The Surface UV Index (Monthly, All-Sky) layer shows CERES-observed temporally interpolated and spatially gridded observed Surface UV Index under all-sky conditions contained within the SYN1deg product, which is a primary input to the EBAF product.
The Clouds and the Earth’s Radiant Energy System (CERES) instruments are a collection of instruments carried on different satellites, the first launched in 1999 (Terra) as a follow-on to the successful Earth Radiation Budget Experiment (ERBE) mission, and as a flagship component of the Earth Observing System (EOS) program. The second satellite (Aqua) was launched in 2002. There are two identical CERES instruments aboard both the Terra and Aqua satellites, that measure the Earth's total radiation budget and provide cloud property estimates that enable scientists to assess clouds' roles in radiative fluxes from the surface to the top of the atmosphere. One of the instruments operates in a cross-track scan mode and the other in a biaxial scan mode. The cross-track mode data is what is used to align the CERES measurements with ERBE and the Tropical Rainfall Measuring Mission (TRMM), essentially extending the data record. For observations derived from the Terra and Aqua satellite instruments, the measurements are diurnally averaged using ERBE (constant meteorology) flux temporal interpolation algorithm to interpolate between the instruments, which make passes over the earth at varying times.
The Surface UV Index (Monthly, All-Sky) layer is available from the CERES instruments on the Terra and Aqua satellites. The sensor resolution is 1 degree, imagery resolution is 2 km, and the temporal resolution is monthly.
Data parameters: Total_Sky_Surface_UV_Index
Data product: CER_SYN1deg-Month_Terra-Aqua-MODIS_Edition4A