Concept information
Preferred term
GLOSS
Definition
- The Global Sea Level Observing System (GLOSS) is an international programme coordinated by the Intergovernmental Oceanographic Commission (IOC) for the establishment of high quality global and regional sea level networks for application to climate, oceanographic and coastal sea level research. The programme became known as GLOSS as it provides data for deriving the 'Global Level of the Sea Surface'. The main component of GLOSS is the 'Global Core Network' (GCN) of 287 sea level stations around the world for long term climate change and oceanographic sea level monitoring. The Core Network is designed to provide an approximately evenly-distributed sampling of global coastal sea level variations. Another component is the GLOSS Long Term Trends (LTT) set of gauge sites (some, but not all, of which are in the GCN) for monitoring long term trends and accelerations in global sea level. These will be priority sites for Global Positioning System (GPS) receiver installations to monitor vertical land movements, and their data will contribute to long term climate change studies such as those of the WMO-UNEP Intergovernmental Panel on Climate Change (IPCC). The GLOSS altimeter calibration (ALT) set consists mostly of island stations, and will provide an ongoing facility for mission intercalibrations. A GLOSS ocean circulation (OC) set, including in particular gauge pairs at straits and in polar area, complements altimetric coverage of the open deep ocean within programmes such as WOCE and CLIVAR. GLOSS can be considered a component of IOC's Global Ocean Observing System (GOOS), and particularly as a major contributor to its Climate and Coastal Modules. Information on the links between GLOSS and other IOC activities can be obtained from IOC's own web pages. For more information, link to " http://www.pol.ac.uk/psmsl/programmes/gloss.info.html" (en)
Broader concept
- G - I (en)
URI
https://gcmd.earthdata.nasa.gov/kms/concept/5bca44fe-beff-4d39-bb19-726ddb57ca30
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