G2.11

G2.11    Lack of rigorous tropospheric O₃ lidar error budget availability

Gap detailed description

Tropospheric ozone has an impact on air quality and acts as a greenhouse gas and therefore plays a role in public and environmental health, as well as climate change, linking the two subjects. In order to establish trends, more observations are needed (see G.2.10) and a rigorous error budget is needed.

Activities within GAIA-CLIM related to this gap

This gap will be addressed within GAIA-CLIM. A traceability chain will be set up and an error budget calculation scheme will be set up. This work is part of GAIA-CLIM Task 2.1 and 2.2 and will be carried out by the task members (KNMI, CNR and NASA JPL).

Gap remedy(s)

Specific remedy proposed

A traceability chain will be set up and an error budget calculation scheme will be compiled.

Measurable outcome of success

Established (published in peer reviewed journal) error budget calculation scheme.

Achievable outcomes

Organizational viability: high.

Indicative cost estimate: low.  Lidar experts will review existing materials from open literature and other projects (e.g. ACTRIS/EARLINET and ISSI lidar project), the methodology required for setting up the traceability and establishing the error budget calculations.

Relevance

The issue is highly relevant for any application that uses ground based tropospheric ozone lidar data as a reference. In particular to understand the tropospheric ozone budget and the reduction of the uncertainties in estimation of the resulting radiative forcing.

Timebound

GAIA-CLIM deliverables from WP2.

Gap risks to non-resolution