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FIDUCEO: Fundamental Climate Data Record of Microwave Brightness Temperatures with uncertainties, 1994 - 2017, v4.1

Update Frequency: Not Planned
Status: Completed
Online Status: ONLINE
Publication State: Citable
Publication Date: 2019-09-12
DOI Publication Date: 2020-06-12
Download Stats: last 12 months


The FIDUCEO Microwave Fundamental Climate data record, v4.1, contains microwave brightness temperatures and uncertainties for series of satellite instruments (all mission years of SSMT2 on F11, F12, F14, F15; AMSU-B on NOAA15, NOAA16 and NOAA17; and MHS missions (NOAA18, NOAA19, MetopA,-B)). The presented FCDR is a long data record of increased consistency among the instruments compared to the operational data record and is a long enough data record to generate climate data records (CDRs) for climate research. The improvements are based on the strict application of the measurement equation as well as dedicated corrections and improvements within the calibration process. The data record contains quantified uncertainty components, respecting the correlation behaviour of underlying effects.

Full documentation including product user guide, tutorials, the scientific basis and relevant publications are available in the documentation

Citable as:  Hans, I.; Burgdorf, M.; Wooliams, E. (2020): FIDUCEO: Fundamental Climate Data Record of Microwave Brightness Temperatures with uncertainties, 1994 - 2017, v4.1. Centre for Environmental Data Analysis, 12 June 2020. doi:10.5285/a8e9f44965434f3b861eba77688701ef.
Abbreviation: Not defined
Keywords: FCDR, Fundamental Climate Data Record, Microwave, SSMT-2, AMSU-B, MHS, Uncertainty


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: When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Data provided to CEDA for publication by the University of Hamburg as part of the FIDUCEO project. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 638822.

Data Quality:
Validated by FIDUCEO project team Imke Hans and Martin Bergdorf of the University of Hamburg and Esther Conway on receipt by CEDA
File Format:
NetCDF fiuduceo format see documentation for - Basic telemetry: longitude, latitude, time, satellite and solar angles (these angles are not provide for SSMT-2); - Brightness temperatures for channels 1-5; -Independent, structured and common uncertainty for channels 1-5; -for each scan line: original scan line number of the l1b files - for each scan line: indicator which l1b file it belongs to -8 bitfields indicating identified problems with the data: one bitmask indicating level of trust in the data (per pixel and scanline), one bitmaks indicating sensor specific quality issues (per pixel and scanline); one bitmask indicating quality issues per scan line, i.e. transmitter status so far (per scanline), 5 bitmasks indicating certain quality issues for each channel (per pixel and per scanline) The dimensions of the variables in the NetCDF file are x and y, indicating the pixel and scan line, respectively. Additionally, there are the dimensions channel and n_frequencies, denoting the number of channels and the number of frequencies (for which Spectral Response Function is defined). full descriptions of file specification and product User Guide in Documentation

Process overview

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

Computation Element: 1

Title FIDUCEO Project Microwave FCDR Computation V4.1
Abstract Generated with FCDR_generator.m v4.1 (AMSU-B, MHS, SSMT2): See project docs for software and computation process and link to V4.1 processing software on Git Hub
Input Description None
Output Description None
Software Reference None
Output Description None
  • standard_name: status_flag
  • long_name: Bitmask for quality issues in Ch16 per pixel
  • var_id: quality_issue_pixel_Ch16_bitmask
  • names: status_flag, Bitmask for quality issues in Ch16 per pixel
  • standard_name: status_flag
  • long_name: Bitmask for quality issues in Ch17 per pixel
  • var_id: quality_issue_pixel_Ch17_bitmask
  • names: status_flag, Bitmask for quality issues in Ch17 per pixel
  • standard_name: status_flag
  • long_name: Bitmask for quality issues in Ch18 per pixel
  • var_id: quality_issue_pixel_Ch18_bitmask
  • names: status_flag, Bitmask for quality issues in Ch18 per pixel
  • standard_name: status_flag
  • long_name: Bitmask for quality issues in Ch19 per pixel
  • var_id: quality_issue_pixel_Ch19_bitmask
  • names: status_flag, Bitmask for quality issues in Ch19 per pixel
  • standard_name: status_flag
  • long_name: Bitmask for quality issues in Ch20 per pixel
  • var_id: quality_issue_pixel_Ch20_bitmask
  • names: status_flag, Bitmask for quality issues in Ch20 per pixel
  • standard_name: status_flag
  • long_name: Bitmask for quality per pixel
  • var_id: quality_pixel_bitmask
  • names: status_flag, Bitmask for quality per pixel
  • standard_name: status_flag
  • long_name: Bitmask for quality per scanline
  • var_id: quality_scanline_bitmask
  • names: status_flag, Bitmask for quality per scanline
  • units: 1
  • long_name: Channel_error_correlation_matrix_common_effects
  • var_id: channel_correlation_matrix_common
  • names: Channel_error_correlation_matrix_common_effects
  • units: 1
  • long_name: Channel_error_correlation_matrix_independent_effects
  • var_id: channel_correlation_matrix_independent
  • names: Channel_error_correlation_matrix_independent_effects
  • units: 1
  • long_name: Channel_error_correlation_matrix_structured_effects
  • var_id: channel_correlation_matrix_structured
  • names: Channel_error_correlation_matrix_structured_effects
  • long_name: Indicator of original file
  • var_id: scanline_map_to_origl1bfile
  • names: Indicator of original file
  • long_name: Original_Scan_line_number
  • var_id: scanline_origl1b
  • names: Original_Scan_line_number
  • units: degree
  • standard_name: sensor_azimuth_angle
  • long_name: Satellite_azimuth_angle
  • var_id: Satellite_azimuth_angle
  • names: sensor_azimuth_angle, Satellite_azimuth_angle
  • units: degree
  • standard_name: sensor_zenith_angle
  • long_name: Satellite_zenith_angle
  • var_id: Satellite_zenith_angle
  • names: sensor_zenith_angle, Satellite_zenith_angle
  • standard_name: status_flag
  • long_name: Sensor specific bitmask for quality per pixel
  • var_id: data_quality_bitmask
  • names: status_flag, Sensor specific bitmask for quality per pixel
  • units: degree
  • standard_name: solar_azimuth_angle
  • long_name: Solar_azimuth_angle
  • var_id: Solar_azimuth_angle
  • names: solar_azimuth_angle, Solar_azimuth_angle
  • units: degree
  • standard_name: solar_zenith_angle
  • long_name: Solar_zenith_angle
  • var_id: Solar_zenith_angle
  • names: solar_zenith_angle, Solar_zenith_angle
  • units: MHz
  • long_name: Spectral Response Function frequencies
  • var_id: SRF_frequencies
  • names: Spectral Response Function frequencies
  • units: dB
  • long_name: Spectral Response Function weights
  • var_id: SRF_weights
  • names: Spectral Response Function weights
  • var_id: Time
  • units: s
  • long_name: Time_of_Scan_line
  • names: Time_of_Scan_line
  • units: K
  • standard_name: toa_brightness_temperature
  • long_name: channel16-89.0GHz_toa_brightness_temperature
  • var_id: Ch16_BT
  • names: toa_brightness_temperature, channel16-89.0GHz_toa_brightness_temperature
  • units: K
  • standard_name: toa_brightness_temperature
  • long_name: channel17-150.0GHz_toa_brightness_temperature
  • var_id: Ch17_BT
  • names: toa_brightness_temperature, channel17-150.0GHz_toa_brightness_temperature
  • units: K
  • standard_name: toa_brightness_temperature
  • long_name: channel18-183.31pm1GHz_toa_brightness_temperature
  • var_id: Ch18_BT
  • names: toa_brightness_temperature, channel18-183.31pm1GHz_toa_brightness_temperature
  • units: K
  • standard_name: toa_brightness_temperature
  • long_name: channel19-183.31pm3GHz_toa_brightness_temperature
  • var_id: Ch19_BT
  • names: toa_brightness_temperature, channel19-183.31pm3GHz_toa_brightness_temperature
  • units: K
  • long_name: channel20-183.31pm7GHz_toa_brightness_temperature
  • standard_name: toa_brightness_temperature
  • var_id: Ch20_BT
  • names: channel20-183.31pm7GHz_toa_brightness_temperature, toa_brightness_temperature
  • units: 1
  • long_name: cross_element_correlation_coefficients
  • var_id: cross_element_correlation_coefficients
  • names: cross_element_correlation_coefficients
  • units: 1
  • long_name: cross_line_correlation_coefficients
  • var_id: cross_line_correlation_coefficients
  • names: cross_line_correlation_coefficients
  • units: K
  • long_name: uncertainty_of_channel16_toa_brightness_temperature_common_effects
  • var_id: u_common_Ch16_BT
  • names: uncertainty_of_channel16_toa_brightness_temperature_common_effects
  • units: K
  • long_name: uncertainty_of_channel16_toa_brightness_temperature_independent_effects
  • var_id: u_independent_Ch16_BT
  • names: uncertainty_of_channel16_toa_brightness_temperature_independent_effects
  • units: K
  • long_name: uncertainty_of_channel16_toa_brightness_temperature_structured_effects
  • var_id: u_structured_Ch16_BT
  • names: uncertainty_of_channel16_toa_brightness_temperature_structured_effects
  • units: K
  • long_name: uncertainty_of_channel17_toa_brightness_temperature_common_effects
  • var_id: u_common_Ch17_BT
  • names: uncertainty_of_channel17_toa_brightness_temperature_common_effects
  • units: K
  • long_name: uncertainty_of_channel17_toa_brightness_temperature_independent_effects
  • var_id: u_independent_Ch17_BT
  • names: uncertainty_of_channel17_toa_brightness_temperature_independent_effects
  • units: K
  • long_name: uncertainty_of_channel17_toa_brightness_temperature_structured_effects
  • var_id: u_structured_Ch17_BT
  • names: uncertainty_of_channel17_toa_brightness_temperature_structured_effects
  • units: K
  • long_name: uncertainty_of_channel18_toa_brightness_temperature_common_effects
  • var_id: u_common_Ch18_BT
  • names: uncertainty_of_channel18_toa_brightness_temperature_common_effects
  • units: K
  • long_name: uncertainty_of_channel18_toa_brightness_temperature_independent_effects
  • var_id: u_independent_Ch18_BT
  • names: uncertainty_of_channel18_toa_brightness_temperature_independent_effects
  • units: K
  • long_name: uncertainty_of_channel18_toa_brightness_temperature_structured_effects
  • var_id: u_structured_Ch18_BT
  • names: uncertainty_of_channel18_toa_brightness_temperature_structured_effects
  • units: K
  • long_name: uncertainty_of_channel19_toa_brightness_temperature_common_effects
  • var_id: u_common_Ch19_BT
  • names: uncertainty_of_channel19_toa_brightness_temperature_common_effects
  • units: K
  • long_name: uncertainty_of_channel19_toa_brightness_temperature_independent_effects
  • var_id: u_independent_Ch19_BT
  • names: uncertainty_of_channel19_toa_brightness_temperature_independent_effects
  • units: K
  • long_name: uncertainty_of_channel19_toa_brightness_temperature_structured_effects
  • var_id: u_structured_Ch19_BT
  • names: uncertainty_of_channel19_toa_brightness_temperature_structured_effects
  • units: K
  • long_name: uncertainty_of_channel20_toa_brightness_temperature_common_effects
  • var_id: u_common_Ch20_BT
  • names: uncertainty_of_channel20_toa_brightness_temperature_common_effects
  • units: K
  • long_name: uncertainty_of_channel20_toa_brightness_temperature_independent_effects
  • var_id: u_independent_Ch20_BT
  • names: uncertainty_of_channel20_toa_brightness_temperature_independent_effects
  • units: K
  • long_name: uncertainty_of_channel20_toa_brightness_temperature_structured_effects
  • var_id: u_structured_Ch20_BT
  • names: uncertainty_of_channel20_toa_brightness_temperature_structured_effects

Co-ordinate Variables

  • standard_name: latitude
  • var_id: latitude
  • long_name: latitude
  • units: degree north
  • names: latitude
  • standard_name: longitude
  • var_id: longitude
  • long_name: longitude
  • units: degree east
  • names: longitude
Temporal Range
Start time:
End time:
Geographic Extent