GCOS Network Accreditation
Network Oversight | Reporting | |
GCOS Network
| GCOS, oversight by GCOS Network Manager of GCOS panels | Annually to GCOS, represented at GCOS Meetings |
GCOS Affiliated Network
| Oversight exists but is not GCOS e.g. OCG for ocean networks or this is part of the network as in the GTN. | |
GCOS Recognized Network
| Annual report available but no direct reporting to GCOS |
Information about the recognition process and the needed form is available for download: GCOS Network Accreditation.
To apply for the formal accreditation as a GCOS Network, please complete the proforma and send it to:
- ctassone
wmo [dot] int (ctassone[at]wmo[dot]int) for atmosphere networks - bmartinmiguez
wmo [dot] int (bmartinmiguez[at]wmo[dot]int) for oceanic networks - abombelli
wmo [dot] int (abombelli[at]wmo[dot]int) for terrestrial networks
There are four GCOS Networks directly monitored and managed by GCOS, which currently monitor ECVs in the atmospheric domain only. These networks can be divided into two main types:
GCOS Baseline Networks:
- GCOS Surface Network (GSN)
- GCOS Upper-Air Network (GUAN)
GCOS Reference Networks:
- GCOS Reference Upper-Air Network (GRUAN)
- GCOS Surface Reference Network (GSRN)
The following are the networks that have already been accredited, either as recognized or affiliated networks:
| Name | Accreditation date | Certificate |
| BSRN, Baseline Surface Radiation Network | 1 September 2022 | GCOS Recognized Network BSRN_GCOS_Network_Certificate.pdf |
| GTN-R, Global Terrestrial Network for Rivers | 10 March 2025 | GCOS Affiliated Network GTN-R_GCOS_Network_Certificate.pdf |
| GTN-P, Global Terrestrial Network for Permafrost | 13 February 2026 | GCOS Affiliated Network GTN-P_GCOS_Network_Certificate.pdf |
| ISMN, International Soil Moisture Network | 17 February 2026 | GCOS Affiliated Network ISMN_GCOS_Network_Certificate.pdf |
| GTN-G, Global Terrestrial Network for Glaciers | 18 February 2026 | GCOS Affiliated Network GTN-G_GCOS_Network_Certificate.pdf |