Dataset
ESA Precursors for Aerosols and Ozone Climate Change Initiative (Precursors_cci): Merged CO product, version 1.0
Abstract
The carbon monoxide (CO) Climate Data Record (CDR) merged product is a new monthly Level 3 CO product developed by merging satellite data from the IASI instrument (on METOP-A, B, and C) and the MOPITT instrument (on TERRA) as part of the ESA Climate Change Initiative (CCI) Precursors for Aerosols and Ozone project.
An intermediate IASI L3 product was created averaging cloud-free Level 2 CO from the three METOP platforms (A, B and C) using the Cloud Detection Product of Whitburn et al. (2022). These data were then combined with MOPITT V9T L3 data using a weighted averaging approach. Weights were determined based on the MOPITT CO total column to prior ratio.
The merged dataset includes CO total column monthly 1°x1° resolution grids as well as uncertainty grids, for both daytime and night-time from January 2008 to December 2024. Surface altitude grids as well as data source flags grids are also provided.
The European Space Agency (ESA) Precursors for Aerosol and Ozone Climate Change Initiative (Precursors CCI) project is part of ESA's Climate Change Initiative (CCI) to produce long term datasets of Essential Climate Variables derived from global satellite data.
The version number is 1.0. Data are available in NetCDF format.
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): https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_precursors_for_aerosols_and_ozone_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: |
Data were produced by the project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA). |
| Data Quality: |
See dataset associated documentation
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| File Format: |
netcdf
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Related Documents
Process overview
Instrument/Platform pairings
| IASI | Deployed on: Metop-A |
| IASI | Deployed on: Metop-B |
| IASI | Deployed on: Metop-C |
| MOPITT | Deployed on: TERRA |
Computation Element: 1
| Title | ESA Precursors for Aerosol and Ozone Climate Change Initiative: Derivation of Merged CO v1.0 product. |
| Abstract | An intermediate IASI L3 product was created averaging cloud-free Level 2 CO from the three METOP platforms (A, B and C) using the Cloud Detection Product of Whitburn et al. (2022). These data were then combined with MOPITT V9T L3 data using a weighted averaging approach. Weights were determined based on the MOPITT CO total column to prior ratio. The merged dataset includes CO total column monthly 1°x1° resolution grids as well as uncertainty grids, for both daytime and nighttime from January 2008 to December 2024. Surface altitude grids as well as data source flags grids are also provided. The version number is 1.0. Data are available in NetCDF format. |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
| Output Description | None |
- units: m
- var_id: surface_altitude_day
- long_name: altitude of the surface for IASI daytime observations
- units: m
- var_id: surface_altitude_night
- long_name: altitude of the surface for IASI nighttime observations
- var_id: flag_day
- long_name: flag for instruments used in the weighted average, for daytime observations: 3 for IASI and MOPITT, 2 for IASI only, 1 for MOPITT only and 0 when no data
- var_id: flag_night
- long_name: flag for instruments used in the weighted average, for nighttime observations: 3 for IASI and MOPITT, 2 for IASI only, 1 for MOPITT only and 0 when no data
- units: molecules cm-2
- var_id: co_total_column_day
- long_name: monthly merged IASI MOPITT total carbon monoxide columns for daytime observations
- units: molecules cm-2
- var_id: co_total_column_night
- long_name: monthly merged IASI MOPITT total carbon monoxide columns for nighttime observations
- var_id: time_bnds
- units: molecules cm-2
- var_id: co_total_column_uncertainty_day
- long_name: uncertainty in monthly merged IASI MOPITT total carbon monoxide columns for daytime observations
- var_id: co_total_column_uncertainty_night
- long_name: uncertainty in monthly merged IASI MOPITT total carbon monoxide columns for nighttime observations
- units: molecules cm-2
Co-ordinate Variables
- units: degrees_north
- standard_name: latitude
- var_id: latitude
- long_name: latitude of the gridcell center
- units: degrees_east
- standard_name: longitude
- var_id: longitude
- long_name: longitude of the gridcell center
- standard_name: time
- var_id: time
- units: seconds
Temporal Range
2008-01-01T00:00:00
2024-12-31T23:59:59
Geographic Extent
90.0000° |
||
-180.0000° |
180.0000° |
|
-90.0000° |