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Dataset

 

ESA Cloud Climate Change Initiative (Cloud_cci): ATSR2-AATSR cloud properties on the satellite swath (L2), version 3.0

Update Frequency: Not Planned
Status: Ongoing
Online Status: ONLINE
Publication State: Preview
Publication Date:

THIS RECORD HAS NOT BEEN PUBLISHED YET - PREVIEW ONLY!
Abstract

The Cloud_cci ATSR2-AATSRv3 Level 2 dataset (covering 1995-2012) was generated within the Cloud_cci project, which was funded by the European Space Agency (ESA) as part of the ESA Climate Change Initiative (CCI) programme (Contract No.: 4000109870/13/I-NB). This dataset is one of the 6 datasets generated in Cloud_cci; all of them being based on passive-imager satellite measurements.

This dataset is based on measurements from the ATSR2 and AATSR instruments (onboard the ERS2 and ENVISAT satellites) and contains a variety of cloud properties which were derived employing the Community Cloud retrieval for Climate (CC4CL; Sus et al., 2018; McGarragh et al., 2018) retrieval framework. The core cloud properties contained in the Cloud_cci ATSR2-AATSRv3 dataset are cloud mask/fraction, cloud phase, cloud top pressure/height/temperature, cloud optical thickness, cloud effective radius and cloud liquid/ice water path. Spectral cloud albedo is also included as experimental product. This particular dataset contains Level 2 data on the satellite swath. Level-3U (globally gridded, unaveraged data fields) and L3C (monthly gridded) is also available as a separate dataset. Pixel-based uncertainty estimates come along with all properties.

Citable as:  [ PROVISIONAL ] Poulsen, C.A.; McGarragh, G.; Thomas, G.; Stengel, M.; Christensen, M.; Povey, A.; Proud, S.; Carboni, E.; Hollmann, R.; Grainger, D. (9999): ESA Cloud Climate Change Initiative (Cloud_cci): ATSR2-AATSR cloud properties on the satellite swath (L2), version 3.0. NERC EDS Centre for Environmental Data Analysis, date of citation. https://catalogue.ceda.ac.uk/uuid/b69d7604f031485bb515eff2de322468
Abbreviation: Not defined
Keywords: ESA, CCI, Clouds

Details

Previous Info:
No news update for this record
Previously used record identifiers:
No related previous identifiers.
Access rules:
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence: http://licences.ceda.ac.uk/image/data_access_condition/esacci_cloud_terms_and_conditions.pdf. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

This dataset has been produced as part of the ESA Climate Change Initiative (CCI) cloud project with additional support from the National Centre for Earth Observation (NCEO)

Data Quality:
Data are as given by the data provider, no quality control has been performed by the Centre for Environmental Data Analysis (CEDA)
File Format:
Data are in NetCDF format

Process overview

This dataset was generated by a combination of instruments deployed on platforms and computations as detailed below.

Computation Element: 1

Title ESA Cloud Climate Change Initiative ATSR2-AATSR v3 data
Abstract The ATSR2-AATSR v3 dataset has been derived using the Community Cloud retrieval for Climate (CC4CL; Sus et al., 2018; McGarragh et al., 2018) retrieval framework. For further details, see the documentation at https://climate.esa.int/en/projects/cloud/key-documents/
Input Description None
Output Description None
Software Reference None
Output Description None
  • units: meter
  • var_id: dem
  • long_name: Digital elevation model
  • names: Digital elevation model
  • units: 1
  • var_id: cldmask
  • long_name: Neural net cloud mask (radiance based)
  • names: Neural net cloud mask (radiance based)
  • var_id: cldmask_uncertainty
  • long_name: Neural net cloud mask (radiance based) uncertainty
  • units: 1
  • names: Neural net cloud mask (radiance based) uncertainty
  • units: 1
  • var_id: ann_phase
  • long_name: Neural net cloud phase mask (radiance based)
  • names: Neural net cloud phase mask (radiance based)
  • units: 1
  • var_id: ann_phase_uncertainty
  • long_name: Neural net cloud phase mask (radiance based) uncertainty
  • names: Neural net cloud phase mask (radiance based) uncertainty
  • var_id: cldtype
  • long_name: Pavolonis cloud type
  • units: 1
  • names: Pavolonis cloud type
  • var_id: time
  • long_name: Time in Julian days
  • standard_name: Julian Days
  • names: Julian Days, Time in Julian days
  • units: 1
  • var_id: costja
  • long_name: a priori cost at solution
  • names: a priori cost at solution
  • units: 1
  • var_id: cee_in_channel_no_6
  • standard_name: cee
  • long_name: cee in channel no 6
  • names: cee in channel no 6, cee
  • units: 1
  • var_id: cee_in_channel_no_7
  • long_name: cee in channel no 7
  • standard_name: cee
  • names: cee, cee in channel no 7
  • units: 1
  • long_name: cee_uncertainty in channel no 6
  • var_id: cee_uncertainty_in_channel_no_6
  • names: cee_uncertainty in channel no 6
  • long_name: cee_uncertainty in channel no 7
  • units: 1
  • var_id: cee_uncertainty_in_channel_no_7
  • names: cee_uncertainty in channel no 7
  • units: 1
  • var_id: channels_used
  • long_name: channels used by retrieval
  • names: channels used by retrieval
  • standard_name: cloud_effective_emissivity
  • long_name: cloud effective emissivity in channel no 6
  • var_id: cee_in_channel_no_6
  • units: 1
  • names: cloud effective emissivity in channel no 6, cloud_effective_emissivity
  • standard_name: cloud_effective_emissivity
  • units: 1
  • var_id: cee_in_channel_no_7
  • long_name: cloud effective emissivity in channel no 7
  • names: cloud_effective_emissivity, cloud effective emissivity in channel no 7
  • units: 1
  • var_id: cee_uncertainty_in_channel_no_6
  • long_name: cloud effective emissivity uncertainty in channel no 6
  • names: cloud effective emissivity uncertainty in channel no 6
  • units: 1
  • long_name: cloud effective emissivity uncertainty in channel no 7
  • var_id: cee_uncertainty_in_channel_no_7
  • names: cloud effective emissivity uncertainty in channel no 7
  • var_id: cer
  • standard_name: effective_radius_of_cloud_condensed_water_particles_at_cloud_top
  • long_name: cloud effective radius
  • units: micrometer
  • names: cloud effective radius, effective_radius_of_cloud_condensed_water_particles_at_cloud_top
  • var_id: cer_uncertainty
  • long_name: cloud effective radius uncertainty
  • units: micrometer
  • names: cloud effective radius uncertainty
  • units: 1
  • long_name: cloud fraction
  • var_id: cc_total
  • standard_name: cloud_area_fraction
  • names: cloud_area_fraction, cloud fraction
  • units: 1
  • var_id: cc_total_uncertainty
  • long_name: cloud fraction uncertainty
  • names: cloud fraction uncertainty
  • units: g/m2
  • standard_name: atmosphere_mass_content_of_cloud_liquid_water
  • long_name: cloud liquid water path
  • var_id: cwp
  • names: atmosphere_mass_content_of_cloud_liquid_water, cloud liquid water path
  • long_name: cloud liquid water path uncertainty
  • var_id: cwp_uncertainty
  • units: g/m2
  • names: cloud liquid water path uncertainty
  • long_name: cloud optical thickness
  • units: 1
  • standard_name: atmosphere_optical_thickness_due_to_cloud
  • var_id: cot
  • names: atmosphere_optical_thickness_due_to_cloud, cloud optical thickness
  • units: 1
  • long_name: cloud optical thickness uncertainty
  • var_id: cot_uncertainty
  • names: cloud optical thickness uncertainty
  • standard_name: thermodynamic_phase_of_cloud_water_particles_at_cloud_top
  • long_name: cloud phase flag
  • units: 1
  • var_id: phase
  • names: thermodynamic_phase_of_cloud_water_particles_at_cloud_top, cloud phase flag
  • standard_name: thermodynamic_phase_of_cloud_water_particles_at_cloud_top
  • var_id: phase_pavolonis
  • long_name: cloud phase flag Pavolonis
  • units: 1
  • names: thermodynamic_phase_of_cloud_water_particles_at_cloud_top, cloud phase flag Pavolonis
  • units: kilometer
  • var_id: cth
  • standard_name: cloud_top_altitude
  • long_name: cloud top height
  • names: cloud_top_altitude, cloud top height
  • long_name: cloud top height uncertainty
  • var_id: cth_uncertainty
  • units: kilometer
  • names: cloud top height uncertainty
  • standard_name: air_pressure_at_cloud_top
  • units: hPa
  • long_name: cloud top pressure
  • var_id: ctp
  • names: air_pressure_at_cloud_top, cloud top pressure
  • var_id: ctp_uncertainty
  • units: hPa
  • long_name: cloud top pressure uncertainty
  • names: cloud top pressure uncertainty
  • var_id: ctt
  • units: kelvin
  • long_name: cloud top temperature
  • standard_name: air_temperature_at_cloud_top
  • names: air_temperature_at_cloud_top, cloud top temperature
  • units: kelvin
  • long_name: cloud top temperature uncertainty
  • var_id: ctt_uncertainty
  • names: cloud top temperature uncertainty
  • var_id: cloud_albedo_in_channel_no_2
  • units: 1
  • standard_name: cloud_albedo
  • long_name: cloud_albedo in channel no 2
  • names: cloud_albedo, cloud_albedo in channel no 2
  • units: 1
  • var_id: cloud_albedo_in_channel_no_3
  • long_name: cloud_albedo in channel no 3
  • standard_name: cloud_albedo
  • names: cloud_albedo, cloud_albedo in channel no 3
  • units: 1
  • long_name: cloud_albedo in channel no 4
  • var_id: cloud_albedo_in_channel_no_4
  • standard_name: cloud_albedo
  • names: cloud_albedo, cloud_albedo in channel no 4
  • long_name: cloud_albedo_uncertainty in channel no 2
  • units: 1
  • var_id: cloud_albedo_uncertainty_in_channel_no_2
  • names: cloud_albedo_uncertainty in channel no 2
  • units: 1
  • var_id: cloud_albedo_uncertainty_in_channel_no_3
  • long_name: cloud_albedo_uncertainty in channel no 3
  • names: cloud_albedo_uncertainty in channel no 3
  • units: 1
  • var_id: cloud_albedo_uncertainty_in_channel_no_4
  • long_name: cloud_albedo_uncertainty in channel no 4
  • names: cloud_albedo_uncertainty in channel no 4
  • long_name: corrected cloud top height
  • units: kilometer
  • var_id: cth_corrected
  • names: corrected cloud top height
  • var_id: cth_corrected_uncertainty
  • long_name: corrected cloud top height uncertainty
  • units: kilometer
  • names: corrected cloud top height uncertainty
  • units: hPa
  • var_id: ctp_corrected
  • long_name: corrected cloud top pressure
  • names: corrected cloud top pressure
  • units: hPa
  • var_id: ctp_corrected_uncertainty
  • long_name: corrected cloud top pressure uncertainty
  • names: corrected cloud top pressure uncertainty
  • units: kelvin
  • long_name: corrected cloud top temperature
  • var_id: ctt_corrected
  • names: corrected cloud top temperature
  • units: kelvin
  • var_id: ctt_corrected_uncertainty
  • long_name: corrected cloud top temperature uncertainty
  • names: corrected cloud top temperature uncertainty
  • var_id: illum
  • long_name: illumination flag
  • units: 1
  • names: illumination flag
  • units: 1
  • var_id: lusflag
  • standard_name: land_use_mask
  • long_name: land use flag
  • names: land use flag, land_use_mask
  • units: 1
  • standard_name: land_binary_mask
  • var_id: lsflag
  • long_name: land/sea flag
  • names: land_binary_mask, land/sea flag
  • units: 1
  • long_name: measurement cost at solution
  • var_id: costjm
  • names: measurement cost at solution
  • units: 1
  • var_id: cccot_pre
  • long_name: neural network cloud optical thickness
  • names: neural network cloud optical thickness
  • long_name: neural network cloud optical thickness (phase)
  • units: 1
  • var_id: cphcot
  • names: neural network cloud optical thickness (phase)
  • units: 1
  • var_id: niter
  • long_name: number of retrieval iterations
  • names: number of retrieval iterations
  • units: 1
  • var_id: qcflag
  • long_name: quality control flag
  • names: quality control flag
  • standard_name: relative_platform_azimuth_angle
  • long_name: relative azimuth angle for view no 1
  • units: degrees
  • var_id: rel_azimuth_view_no1
  • names: relative azimuth angle for view no 1, relative_platform_azimuth_angle
  • units: degrees
  • var_id: sat_azimuth_view_no1
  • standard_name: satellite_platform_azimuth_angle
  • long_name: satellite azimuth angle for view no 1
  • names: satellite azimuth angle for view no 1, satellite_platform_azimuth_angle
  • standard_name: platform_zenith_angle
  • units: degrees
  • var_id: satellite_zenith_view_no1
  • long_name: sensor zenith angle for view no 1
  • names: platform_zenith_angle, sensor zenith angle for view no 1
  • units: degrees
  • standard_name: solar_zenith_angle
  • long_name: solar zenith angle for view no 1
  • var_id: solar_zenith_view_no1
  • names: solar_zenith_angle, solar zenith angle for view no 1
  • units: kelvin
  • var_id: stemp
  • long_name: surface temperature
  • standard_name: surface_temperature
  • names: surface_temperature, surface temperature
  • units: kelvin
  • var_id: stemp_uncertainty
  • long_name: surface temperature uncertainty
  • names: surface temperature uncertainty
  • var_id: variables_retrieved
  • long_name: variables calculated by retrieval
  • units: 1
  • names: variables calculated by retrieval

Co-ordinate Variables

  • standard_name: latitude
  • var_id: lat
  • long_name: latitude
  • units: degrees_north
  • names: latitude
  • var_id: lon
  • units: degrees_east
  • standard_name: longitude
  • long_name: longitude
  • names: longitude
Coverage
Temporal Range
Start time:
1995-06-01T00:00:00
End time:
2012-04-30T23:59:59
Geographic Extent

 
90.0000°
 
-180.0000°
 
180.0000°
 
-90.0000°