# ESA Ozone CCI GTO-ECV Level-3 Total Ozone
*data products*

## Specifications
- **level**: L3
- **distributor**: esa
- **access endpoint**: https://climate.esa.int/en/projects/ozone/
- **access model**: open
- **licence**: ESA CCI open data
- **cost model summary**: Free ESA Climate Change Initiative ozone climate data record access via listed project archives.
- **primary data portal url**: https://climate.esa.int/en/projects/ozone/
- **use cases**: ["total ozone column","climate data record","long-term ozone trend monitoring"]
- **deployment context**: orbital
- **entity type**: data_product
- **last verified date**: 2026-06-13
- **verified by**: agency-doc
- **claim status**: agency-sourced
- **provider**: esa
- **attributes**: {"level":"L3","distributor":"esa","access_endpoint":"https://climate.esa.int/en/projects/ozone/","access_model":"open","licence":"ESA CCI open data","cost_model_summary":"Free ESA Climate Change Initiative ozone climate data record access via listed project archives.","primary_data_portal_url":"https://climate.esa.int/en/projects/ozone/","use_cases":"[\"total ozone column\",\"climate data record\",\"long-term ozone trend monitoring\"]","deployment_context":"orbital"}
- **relevance**: in-scope

## Editorial
ESA Ozone CCI GTO-ECV Level-3 Total Ozone is an ESA Climate Change Initiative climate data record for merged total ozone analysis [^esa-ozone-cci]. The product combines observations from GOME, SCIAMACHY, OMI, GOME-2A, GOME-2B, GOME-2C, and TROPOMI, giving users a multi-instrument ozone record rather than a single-mission product [^esa-ozone-cci]. It provides monthly global coverage on a 1 degree by 1 degree grid from 1995 to present, which supports long-term ozone trend monitoring and climate-scale comparison workflows [^esa-ozone-cci]. Access is open through ESA Climate Change Initiative project archives, making the product suitable for users who need a documented total ozone essential climate variable record [^esa-ozone-cci].

## Compositional position
- ozone-stratosphere (topics) --[topic_capabilities]--> ESA Ozone CCI GTO-ECV Level-3 Total Ozone

## Sources
- [esa-ozone-cci] | ESA Climate Change Initiative Ozone project data products | https://climate.esa.int/en/projects/ozone/ | tier=agency-doc | accessed=2026-06-13

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Source: https://eo-atlas.org/data_products/esa-ozone-cci-gto-ecv
Maintainer: SpectraWorks B.V. (CC-BY 4.0)