Dataset
University of Leicester GOSAT-2 Proxy XCH4, v2.0
Abstract
The University of Leicester GOSAT-2 Proxy XCH4, v2.0 data set contains column-averaged dry-air mole fraction of methane (XCH4) generated from the Greenhouse Gas Observing Satellite (GOSAT-2) Level 1B data using the University of Leicester Full-Physics retrieval scheme (UoL-FP) using the Proxy retrieval approach.
This data is the University of Leicester GOSAT-2 Proxy XCH4 v2.0 dataset. This dataset is consistent with the GOSAT dataset (https://catalogue.ceda.ac.uk/uuid/94d6572a308e477c86e0ce7c4d771311/). The latest version of the GOSAT-2 Level 1B files were processed with the Leicester Retrieval Preparation Toolset to extract the measured radiances along with all required sounding-specific ancillary information such as the measurement time, location and geometry. The data were processed through the UoL-FP retrieval algorithm where the Proxy retrieval approach is used to obtain the column-averaged dry-air mole fraction of methane (XCH4).
We bias-correct this data to be consistent with the GOSAT dataset and evaluate it’s performance against the the Total Carbon Column Observing Network via the same methodology as used for the GOSAT data. See process information and documentation for further details.
Details
| Previous Info: |
No news update for this record
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| Previously used record identifiers: |
No related previous identifiers.
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| 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(s): http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. |
| Data lineage: |
Data were produced by the University of Leicester project team and delivered to Centre for Environmental Data Analysis (CEDA) for archival and publication. The data was produced under the National Centre for Earth Observation (NCEO). |
| Data Quality: |
The data has been fully validated by the University of Leicester project team
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| File Format: |
Data are in NetCDF format
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Related Documents
Process overview
Instrument/Platform pairings
| TANSO-FTS/2 | Deployed on: GOSAT-2 |
Computation Element: 1
| Title | Derivation of the University of Leicester GOSAT and GOSAT-2 Proxy XCH4 data |
| Abstract | The GOSAT and GOSAT-2 datasets were derived using the UoL-FP retrieval algorithm using a proxy retrieval approach. See the linked documentation for further information |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
| Output Description | None |
- units: K
- long_name: air_temperature_apriori
- var_id: air_temperature_apriori
- units: 1e-9
- var_id: ch4_profile_apriori
- long_name: ch4_profile_apriori
- units: 1e-6
- var_id: co2_profile_apriori
- long_name: co2_profile_apriori
- units: 1
- long_name: exposure_id
- var_id: exposure_id
- units: 1
- long_name: gain
- var_id: gain
- units: 1e-6
- long_name: h2o_profile_apriori
- var_id: h2o_profile_apriori
- units: 1e-6
- long_name: model_xco2
- var_id: model_xco2
- units: 1e-6
- long_name: model_xco2_median_diff
- var_id: model_xco2_median_diff
- units: 1e-6
- long_name: model_xco2_range
- var_id: model_xco2_range
- units: hPa
- var_id: pressure_levels
- long_name: pressure_levels
- units: 1
- var_id: pressure_weight
- long_name: pressure_weight
- units: 1e-9
- long_name: raw_xch4
- var_id: raw_xch4
- units: 1e-9
- long_name: raw_xch4_error
- var_id: raw_xch4_error
- units: 1e-6
- long_name: raw_xco2
- var_id: raw_xco2
- units: 1e-6
- long_name: raw_xco2_error
- var_id: raw_xco2_error
- units: 1
- long_name: retr_flag
- var_id: retr_flag
- units: degree
- standard_name: sensor_zenith_angle
- var_id: sensor_zenith_angle
- long_name: sensor_zenith_angle
- units: degree
- var_id: solar_zenith_angle
- standard_name: solar_zenith_angle
- long_name: solar_zenith_angle
- units: hPa
- long_name: surface_air_pressure_apriori
- var_id: surface_air_pressure_apriori
- units: hPa
- long_name: surface_air_pressure_apriori_std
- var_id: surface_air_pressure_apriori_std
- units: m
- standard_name: surface_altitude
- var_id: surface_altitude
- long_name: surface_altitude
- units: m
- long_name: surface_altitude_stdev
- var_id: surface_altitude_stdev
- units: 1e-9
- var_id: xch4
- long_name: xch4
- standard_name: dry_atmosphere_mole_fraction_of_methane
- units: 1
- var_id: xch4_averaging_kernel
- long_name: xch4_averaging_kernel
- units: 1e-9
- var_id: xch4_no_correction
- long_name: xch4_no_correction
- units: 1
- var_id: xch4_quality_flag
- long_name: xch4_quality_flag
- units: 1e-9
- var_id: xch4_uncertainty
- long_name: xch4_uncertainty
- units: 1
- var_id: xco2_averaging_kernel
- long_name: xco2_averaging_kernel
Co-ordinate Variables
- units: degrees_north
- standard_name: latitude
- var_id: latitude
- long_name: latitude
- units: degrees_east
- standard_name: longitude
- var_id: longitude
- long_name: longitude
- long_name: time
- standard_name: time
- var_id: time
- units: seconds
Temporal Range
2019-02-05T00:00:00
2025-12-31T23:59:59
Geographic Extent
90.0000° |
||
-180.0000° |
180.0000° |
|
-90.0000° |