Variables can be listed alphabetically by name or by number of T.Sites by clicking on the appropriate arrows found beside each heading. View the variable documentation by clicking on the name. Click on the number to list the T.Sites measuring each variable. Click here to download the entire list as a zip file (440 KB).

114 Variables found measured by T.Sites member of network [US Long-Term Ecological Research Network]
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Variable		Satellite sensors	T.Sites	Global change map
Active vegetation fires		x	2
Aerosols			2
Air relative humidity		x	16
Air temperature		x	16
Albedo		x	2
Biogeochemical transport from land to ocean		x	1
Biomass above ground			7
Biomass below ground			10
Burned area			2
Carbon dioxide flux			10
Cloud cover		x	3
Dissolved Inorganic Nitrogen (DIN) concentration in the precipitations			1
Dissolved Inorganic Nitrogen (DIN) in the adjacent sea			1
Dissolved Inorganic Phosphorus (DIP) concentration in the adjacent sea			1
Dissolved Organic Nitrogen (DON) concentration in the adjacent sea			1
Dissolved Organic Phosphorus (DOP) concentration in the adjacent sea			1
Dry deposition of nitrate and sulfate			4
Evapotranspiration			8
Fertilizer use			5
Forest cover change			5
Fossil fuels emissions			1
Habitat conversion			1
Habitat fragmentation			2
Indicator species			1
Invasive species			4
Lake and river freeze-up and break-up			4
Land cover		x	14
Land use		x	12
Leaf area index		x	10
Leaf interception			2
Livestock density			1
Methane flux		x	5
Necromass			5
Necromass decomposition rate			7
Net ecosystem productivity			9
Net primary productivity			8
Normalized difference vegetation index		x	2
Ozone		x	3
Particulate and dissoved organic carbon			1
Permafrost active layer		x	1
Phenology			9
Plant N and P tissue content			8
Plant stomatal maximum conductance			2
Pollinator species			1
Precipitation		x	15
Radiation: Fraction photosynthetically active radiation absorbed by plant canopy		x	7
Radiation: Incoming surface solar radiation		x	10
Radiation: Outgoing long-wave radiation		x	2
Radiation: Surface reflected short-wave radiation		x	3
Rainfall chemistry		x	6
Salinity of adjacent sea			1
Snow cover area		x	1
Snow depth		x	4
Snow water equivalent		x	2
Soil annual loss from erosion			5
Soil available phosphorus			7
Soil bulk density			10
Soil calcium carbonate			2
Soil cation exchange capacity			8
Soil depth			6
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