CGMS Baseline
The CGMS Baseline enumerates the observations, measurements and services that form the CGMS contribution to the space-based Global Observing System and responds to end-user requirements expressed in WMO’s Rolling Review of Requirements (RRR). The CGMS Baseline strives to support the WMO Integrated Global Observing System (WIGOS) Vision and serves as CGMS’s committed response to the WIGOS Vision by documenting which missions are currently being flown or planned.
The CGMS Baseline includes missions that meet the following key principles:
- Commitment: The CGMS Members provide, or have firm plans to provide, the observations, measurements and services enumerated in the Baseline.
- Sustained: The observations, measurements and services are provided on a sustained basis.
- Available: The observations, measurements and services are available on a free and unrestricted basis.
- Operational: The data and products can be used in operational applications.
The observations and measurements that constitute the CGMS Baseline are enumerated in a table that describes the sensor type, orbit, observation/measurement (or geophysical parameter) and any specific orbital attributes. The table is designed to facilitate linkages with the WMO OSCAR/Space database, future risk assessments and gap analyses. The CGMS Baseline also discusses the importance of services and presents the steps CGMS will take to ensure the quality and continuity of data and products.
Each year, a CGMS Risk Assessment workshop is organised under the framework of Working Group III. Its objectives are to perform the annual CGMS risk assessment, based on CGMS Members’ plans, and to consider the latest WMO gap analysis and assess any impacts on the CGMS Baseline. On this basis, any required contingency actions are identified and assessed, and the High-Level Priority Plan, CGMS Baseline and CGMS Contingency Plan are reviewed and updated accordingly, for recommendation to Plenary.