ECV Products and Requirements for Glaciers
These products and requirements reflect the Implementation Plan 2016 (GCOS-200). GCOS is reviewing and will update the requirements until 2022. More information on: gcos.wmo.int.
|Product||Definition||Resolution||Frequency||Required Measurement Uncertainty||Stability||Standards/ References|
|Glacier Area||Area covered by glaciers (per glacier)||Annual(at end of ablation season)||Horizontal(at the end of the ablation period)15-30 m||5%||N/A||IGOS (2009), Paul et al. (2009), Zemp et al. (2013)|
|Glacier Elevation Change||2d map of change in height of surface of glacier||Decadal||Horizontal 30-100 m x vertical 1 m||2 m/ decade||1 m/ decade||IGOS (2009), Paul et al. (2009), Zemp et al. (2013)|
|Glacier Mass Change||Annual change in total mass of glacier (at the end of the ablation period)||Seasonal to annual (the latter at end of ablation period)||Vertical: 0.01 m per 10 kg/ m2 (at point location)||Better than 200 kg/m2/year (glacier-wide)||N/A||IGOS (2009), Paul et al. (2009), Zemp et al. (2013)|