Digital Object Identifier
Entry information for CLAAS_V001

DOI for scientific and technical data

10.5676/EUM_SAF_CM/CLAAS/V001

Title

CLAAS: CM SAF CLoud property dAtAset using SEVIRI - Edition 1 - Hourly / Daily Means, Pentad Means, Monthly Means / Monthly Mean Diurnal Cycle / Monthly Histograms

Citation

Stengel, Martin; Kniffka, Anke; Meirink, Jan Fokke; Riihelä, Aku; Trentmann, Jörg; Müller, Richard; Lockhoff, Maarit; Hollmann, Rainer (2013): CLAAS: CM SAF CLoud property dAtAset using SEVIRI - Edition 1 - Hourly / Daily Means, Pentad Means, Monthly Means / Monthly Mean Diurnal Cycle / Monthly Histograms, Satellite Application Facility on Climate Monitoring, DOI:10.5676/EUM_SAF_CM/CLAAS/V001, https://doi.org/10.5676/EUM_SAF_CM/CLAAS/V001.

Publisher

Satellite Application Facility on Climate Monitoring (CM SAF)

Publication year

2013

Author(s)

Stengel, Martin; Kniffka, Anke; Meirink, Jan Fokke; Riihelä, Aku; Trentmann, Jörg; Müller, Richard; Lockhoff, Maarit; Hollmann, Rainer

Description

The first edition of the SEVIRI cloud property dataset has recently been generated and released by the EUMETSAT Satellite Application Facility on Climate Monitoring (CM SAF). The CLAAS dataset contains cloud properties at various processing levels from pixel-based data (approx. 4km spatial resolution) to daily and monthly averages (0.05° x 0.05° latitude-longitude grid). In addition, spatially resolved monthly mean diurnal cycles (0.25° x 0.25°) and monthly histograms (0.05° x 0.05°) are available. Input to the retrieval schemes were inter-calibrated effective radiances of Meteosat-8 and 9, allowing the current version of the dataset to homogeneously span 8 years from 2004 to 2011. Along with the data, a comprehensive documentation of the algorithms used, the generation of the dataset as well as validation studies and user guidance are available, with a brief summary given in Stengel et al. (2013). With this dataset, small, regional and large scale cloud processes at temporal scales of hours to years can be studied. Subsequently to the derivation of the cloud properties, surface albedo (pentad and monthly means) and radiation budget products are inferred (daily and monthly means).

Format

NetCDF

Version

Edition 1

Size

3.2 TB

Documentation

• Cloud properties: Product User Manual (PUM) for dataset edition 1
• Cloud properties: Validation Report (VAL) for dataset edition 1
• Cloud properties: Algorithm Theoretical Basis Document (ATBD) for dataset edition 1
• Cloud physical products: Algorithm Theoretical Basis Document (ATBD) for dataset edition 1
• Surface Albedo: Product User Manual (PUM) for dataset edition 1
• Surface Albedo: Validation Report (VAL) for dataset edition 1
• Surface Albedo: Algorithm Theoretical Basis Document (ATBD) for dataset edition 1
• Radiation products: Product User Manual (PUM) for dataset edition 1
• Radiation products: Validation Report (VAL) for dataset edition 1
• Radiation products: Algorithm Theoretical Basis Document (ATBD) for dataset edition 1
• Spectrally Resolved Surface Irradiance: Product User Manual (PUM) for dataset edition 1
• Spectrally Resolved Solar Surface Irradiance: Validation Report (VAL) for dataset edition 1
• Spectrally Resolved Solar Surface Irradiance: Algorithm Theoretical Basis Document (ATBD) for dataset edition 1

Related publications

• Stengel, M., Kniffka, A., Meirink, J. F., Lockhoff, M., Tan, J., and Hollmann, R.: CLAAS: the CM SAF cloud property dataset using SEVIRI, Atmos. Chem. Phys. Discuss., 13, 26451-26487, doi:10.5194/acpd-13-26451-2013, 2013.

Data record details and ordering

Products from Meteosat First Generation (MFG)

Spectral Resolved Irradiance (SRI)

• Monthly mean (MSG full disk),
• Daily mean (MSG full disk)

Products from Meteosat Second Generation (MSG)

Cloud optical depth (COT)

• Monthly mean diurnal-cycle (MSG full disk),
• Monthly mean (MSG full disk),
• Monthly histogram (MSG full disk),
• Daily mean (MSG full disk)

Cloud phase (CPH)

• Monthly mean (MSG full disk),
• Monthly mean diurnal-cycle (MSG full disk),
• Daily mean (MSG full disk)

Cloud radiative effect lw (CFL)

• Monthly mean (MSG full disk)

Cloud radiative effect sw (CFS)

• Monthly mean (MSG full disk)

Cloud top parameters CTT, CTP and CTH (CTO)

• Monthly histogram (MSG full disk),
• Monthly mean (MSG full disk),
• Monthly mean diurnal-cycle (MSG full disk),
• Daily mean (MSG full disk)

Fractional cloud cover (CFC)

• Monthly mean diurnal-cycle (MSG full disk),
• Monthly mean (MSG full disk),
• Instantaneous (MSG disk),
• Daily mean (MSG full disk)

Ice water path (IWP)

• Monthly mean (MSG full disk),
• Monthly histogram (MSG full disk),
• Monthly mean diurnal-cycle (MSG full disk),
• Daily mean (MSG full disk)

Instantaneous COT, CPH and CWP (CPP)

• Instantaneous (MSG disk)

Instantaneous CTT, CTP and CTH (CTX)

• Instantaneous (MSG disk)

Joint cloud property histograms (JCH)

• Monthly histogram (MSG full disk)

Liquid water path (LWP)

• Monthly mean (MSG full disk),
• Monthly mean diurnal-cycle (MSG full disk),
• Monthly histogram (MSG full disk),
• Daily mean (MSG full disk)

Spectral Resolved Irradiance (SRI)

• Monthly mean (MSG full disk),
• Daily mean (MSG full disk)

Surface albedo (SAL)

• Pentad mean (MSG full disk),
• Monthly mean (MSG full disk)

Surface downward longwave radiation (SDL)

• Monthly mean (MSG full disk)

Surface incoming direct radiation (SID)

• Monthly mean (MSG full disk),
• Daily mean (MSG full disk)

Surface incoming shortwave radiation (SIS)

• Monthly mean (MSG full disk),
• Daily mean (MSG full disk)

Surface net longwave radiation (SNL)

• Monthly mean (MSG full disk)

Surface net shortwave radiation (SNS)

• Monthly mean (MSG full disk)

Surface outgoing longwave radiation (SOL)

• Monthly mean (MSG full disk)

Surface radiation budget (SRB)

• Monthly mean (MSG full disk)