You are here

GCOS Essential Climate Variable (ECV) Data Access

The ECV Data Access Matrix is in development to provide access to GCOS ECV datasets and information. The input for the variable descriptions was provided by GCOS and is presently being updated with information from the 'Status of the Global Observing System for Climate' report (October 2015) (GCOS-195). ECVs are required to support the work of the United Nations Framework Convention on Climate Change (UNFCCC) and the Intergovernmental Panel on Climate Change. All ECVs are technically and economically feasible for systematic observation. It is these variables for which international exchange is required for both current and historical observations. It is emphasized that the ordering within the table is simply for convenience and is not an indicator of relative priority.

ATMOSPHERIC

OCEANIC

TERRESTRIAL

SURFACE
SURFACE
River Discharge
Air Pressure
CO2 Partial Pressure
Water Use
Air Temperature
Current
Ground Water
Precipitation
Ocean Acidity *
Lakes *
Radiation Budget
Ocean Color
Snow Cover
Water Vapour (Surface humidity)
Phytoplankton *
Glaciers and Ice Caps *
Near-Surface Wind Speed and Direction
Sea Ice
Permafrost and seasonally frozen ground
UPPER-AIR
Sea Level
Albedo and Reflectance Anisotropy *
Cloud Properties
Sea State
Land Cover
Earth Radiation Budget
Sea Surface Salinity
FAPAR
Temperature
SST
LAI
Water Vapor
SUB-SURFACE
Above Ground Biomass *
Wind Speed and Direction
Carbon
Fire Disturbance
COMPOSITION
Current
Soil Moisture *
Carbon Dioxide
Nutrients
Soil Carbon *
Methane
Ocean Acidity *
Ice Sheets *
Other Long-Lived Greenhouse Gases
Oxygen *
 
Ozone and Aerosols
Salinity
 
Precursors (supporting the Aerosols and Ozone ECVs)  *
Temperature
 
 
Tracers
 
 
Global Ocean Heat Content **
 

* Added or modified per 'Implementation Plan for the Global Observing System for Climate in Support of the UNFCCC - August 2010, GCOS-138 (GOOS-184, GTOS-76, WMO-TD/No. 1523)' (pdf)
** Not an official GCOS ECV

Reference documents: