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The CERES instruments scans the Earth with a view zenith angle varying from 0 to 65 degrees on each side of the satellite when in cross track mode. There are about 86 footprints on the SSF per scan with separation growing with view zenith angle. The footprints are about 8 km apart at nadir and growi...

The cloud effective height and pressure are values that is obtained strictly from the infrared radiance obtained by the imager. A certain amount of water droplets are needed before the infrared signal becomes strong enough to be detected by a passive instrument such as MODIS or VIIRS. This can be lo...

The second statement is correct, "A phase of 1 indicates all cloud pixels are liquid while a phase of 2 means ice. A phase of 1.5 is a cloud region where half of the MODIS pixels are ice and the other half are liquid." The cloud phase is calculated as below in CERES processing: Cloud Parti...

The Terra and Aqua SRFs remained the same starting with May 2020.

I have attached the Aqua SW SRFs for 2018, 2019, and 2020.

SRF_Aqua-FM3_SW_2019.pdf: Aqua Shortwave Channel SRF for 2019 (12 monthly values); (215.68 KiB) Downloaded 159 times

SRF_Aqua-FM3_SW_2019.pdf: Aqua Shortwave Channel SRF for 2019 (12 monthly values); (215.68 KiB) Downloaded 159 times

SRF_Aqua-FM3_SW_2019.pdf: Aqua Shortwave Channel SRF for 2019 (12 monthly values); (215.68 KiB) Downloaded 159 times

The Terra and Aqua SRFs remained the same starting with May 2020.

I have attached the Aqua TOT SRFs for 2018, 2019, and 2020.

SRF_Aqua-FM3_TOT_2018.pdf: Aqua Total Channel SRF for 2018 (12 monthly values); (347.75 KiB) Downloaded 113 times

SRF_Aqua-FM3_TOT_2018.pdf: Aqua Total Channel SRF for 2018 (12 monthly values); (347.75 KiB) Downloaded 113 times

SRF_Aqua-FM3_TOT_2018.pdf: Aqua Total Channel SRF for 2018 (12 monthly values); (347.75 KiB) Downloaded 113 times

The Terra and Aqua SRFs remained the same starting with May 2020.

I have attached the Terra SW SRFs for 2018, 2019, and 2020.

SRF_Terra-FM1_SW_2020.pdf: Terra Shortwave Channel SRF for 2020 (12 monthly values); (217.5 KiB) Downloaded 95 times

SRF_Terra-FM1_SW_2020.pdf: Terra Shortwave Channel SRF for 2020 (12 monthly values); (217.5 KiB) Downloaded 95 times

SRF_Terra-FM1_SW_2020.pdf: Terra Shortwave Channel SRF for 2020 (12 monthly values); (217.5 KiB) Downloaded 95 times

SRF_Terra-FM1_TOT_2018.pdf: Terra Total Channel SRF for 2018 (12 monthly values); (348.85 KiB) Downloaded 103 times

The Terra and Aqua SRFs remained the same starting with May 2020.

I have attached the Terra TOT SRFs for 2018, 2019, and 2020.

SRF_Terra-FM1_TOT_2018.pdf: Terra Total Channel SRF for 2018 (12 monthly values); (348.85 KiB) Downloaded 103 times

SRF_Terra-FM1_TOT_2018.pdf: Terra Total Channel SRF for 2018 (12 monthly values); (348.85 KiB) Downloaded 103 times

Each CERES instrument has their own Spectral Response File. These files are updated monthly except for NOAA-20 FM6. Please provide which instrument and time period you are interested.

SW flux narrowband to broadband conversions are used in the SYN1deg. There is also a solar zenith cutoff of 60 degrees for the SW flux narrowband to broadband conversions being performed, but this does not impact the cloud properties. Where sun glint is identified in the GEO observations, the clouds...

For GOES, the 0.5 GMT image (30 minutes after) for each GMT hour increment is used (for example 0 to 1 GMT, 1-2 GMT, etc). The four 15 minute images for an hour are not averaged. A 6-km subset of the GOES-16 native resolution imagery is used. If a MODIS swath occurs for that GMT hour, then the MODIS...

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Search found 21 matches

Re: CERES 'definition of SSF instantaneous footprint information for Level 2 products

Re: Problems related to cloud properties of CERES clouds in spherical radiation budget systems

Re: How to obtain ice cloud fraction?

Re: CERES data

Re: CERES data

Re: CERES data

Re: CERES data

Re: CERES data

Re: SYN1deg cloud locations/timing

Re: SYN1deg cloud locations/timing