Observations are fundamental for G3W, which serve as pillars as well as modelling. They are described in detail in the concept note.
The following action items were identified as priority activities for the advancement of implementation of G3W. These action items are organized in several blocks, covering cross-domain and cross-platform (i.e., in situ ground-based platforms and satellites) action items, followed by domain specific action items. The details of activities, performance period and connections between action items are listed in the full Implementation plan.
Section 3: At a Glance
3.1. Theme: Cross-domain observing network design principlesAction O1: Create an exhaustive inventory of existing surface based GHGs measurements.The measures of success include:
Action O2: Develop GHG monitoring standards and revise and reconcile existing GHG measurement requirements.The measures of success are inclusion of established observational requirements Observing Systems Capability Analysis and Review Tool (OSCAR) database, library of Quality Assurance/Quality Control (QA/QC) guidelines and specifications of the tired network. Action O3: Develop a roadmap for longer-term GHG observing activities.The measure of success will be a long-term strategy for the sustainable observing system. |
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3.2 Theme: Ground-based, near-surface, in situ |
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measurements of GHGs (Atmosphere)Action O4: Address existing spatiotemporal data gaps in ground-based near-surface GHG observations (atmosphere).The measures of success include a network design, updated technical regulations, and a list of deployment opportunities. Action O5: Develop sustainable high-quality reference GHG network (Tier 1) (atmosphere).The measures of success include:
Action O6: Develop basic (“fit-for-purpose”) GHG network (Tier 2) (atmosphere).The measures of success include:
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3.3 Theme: Vertically resolved GHG observations, in situ and remote sensing (atmosphere).Action O7: Expand number of sites with vertically resolved and remote-sensing GHG observations.The success indicator is the availability of the set annual targets for profiling observations at sites according to prescribed timeline and including specification of the deployment methods. |
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3.4.Theme: Surface-Based Ocean ObservationsAction O8: Formalize and enhance a sustained surface ocean CO2 observational network.The measures of success are:
Action O9: Deliver routine global gridded products of air-sea CO2 flux.The measures of success include:
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3.5 Theme: Space-based observations of GHGs and related variablesAction O10: Liaise and prioritise with Committee on Earth Observation Satellites (CEOS) -Coordination Group for Meteorological Satellites (CGMS) for direct GHG observations from space.The following measures of success are proposed:
Action O11: Liaise and prioritise with CEOS-CGMS for indirect GHG observations from space (required to infer GHG fluxes).The following measures of success are proposed:
Action O12: Liaise and prioritise with CEOS-CGMS for required space-based observations to monitor changes in the carbon cycle in a (future) changing climate.The following measures of success are proposed:
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