Dataset
ESA Ozone Climate Change Initiative (Ozone CCI): Merged Level 3 Limb Ozone Semi-Monthly Mean Profiles, Version 2
Abstract
This dataset consists of a gridded composite of limb ozone profile data, combining data from a range of instruments.
The Merged Semi-Monthly Mean (MSMM) dataset is created using measurements from limb sensors participating in Ozone_cci project, for years 2007-2008.
First, the ozone profiles from individual instruments are averaged in 10° x 20° latitude-longitude zones over half-month time intervals, and then merged.
The merged semi-monthly mean ozone profiles are structured into yearly netcdf files with self-explanatory names. For example, the file “ESACCI-OZONE-L3-LP-SMM-2008-fv0002.nc” contains the semi-monthly mean ozone profiles for January 2008. In addition to the variables of the merged data, the profiles from individual instruments with their uncertainty parameters are also included (for the altitude range 250-1 hPa used in data merging).
Details
| Previous Info: |
2020-12-02 Please note that newer versions of this dataset exist and are in the process of being added to the archive. For more informat… Show More 2020-12-02 Please note that newer versions of this dataset exist and are in the process of being added to the archive. For more information please see: https://climate.esa.int/en/projects/ozone/data/ Show Less |
|---|---|
| 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(s): https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_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 processed by the ESA CCI Ozone project team and supplied to CEDA as part of the ESA CCI Open Data Portal Project |
| File Format: |
Data is in NetCDF format
|
Process overview
- units: hPa
- standard_name: air_pressure
- var_id: air_pressure
- standard_name: altitude
- units: km
- long_name: approximate altitude corresponding to pressure levels
- var_id: approximate_altitude
- units: 1
- var_id: instruments
- long_name: index of instruments: 1-GOMOS, 2-MIPAS, 3-SCIAMACHY, 4-OSIRIS, 5-ACE-FTS, 6-SMR
- units: 1
- long_name: inhomogeneity measure in latitude
- var_id: inhomogeneity_in_latitude
- units: 1
- long_name: inhomogeneity measure in longitude
- var_id: inhomogeneity_in_longitude
- units: 1
- long_name: inhomogeneity measure in time
- var_id: inhomogeneity_in_time
- units: 1
- standard_name: mole_fraction_of_ozone_in_air
- var_id: merged_ozone_vmr
- long_name: merged semi-monthly mean ozone mixing ratio
- units: %
- long_name: sampling error for individual instruments
- var_id: sampling_error
- units: 1
- var_id: ozone_vmr
- standard_name: mole_fraction_of_ozone_in_air
- long_name: semi-monthly mean mixing ratio from individual instruments
- units: %
- var_id: standard_error_of_the_mean
- long_name: standard error of the mean for individual instruments
- units: %
- long_name: total uncertainty of merged ozone profiles
- var_id: uncertainty_of_merged_ozone
- units: %
- var_id: total_error
- long_name: total uncertainty of semi-monthly mean data for individual instruments
Co-ordinate Variables
- units: degree_north
- standard_name: latitude
- long_name: centers of latitude bins
- var_id: latitude_centers
- units: degree_east
- standard_name: longitude
- long_name: centers of longitude bins
- var_id: longitude_centers
- standard_name: time
- var_id: time
Temporal Range
2007-01-01T00:00:00
2008-12-31T00:00:00
Geographic Extent
90.0000° |
||
-180.0000° |
180.0000° |
|
-90.0000° |