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Methane and carbon dioxide emissions were monitored in control, greenhouse, and nitrogen and phosphorus fertilized plots of three different plant communities Arctic LTER experimental plots, Toolik Field Station, 1992.

Methane and carbon dioxide emissions were monitored in control, greenhouse, and nitrogen and phosphorus fertilized plots of three different plant communities. This is the second year of collection data.

Methane and carbon dioxide emissions were monitored in control, greenhouse, and nitrogen and phosphorus fertilized plots of three different plant communities, Toolik Field Station, North Slope Alaska, Arctic LTER 1993.

Methane and carbon dioxide emissions were monitored in control, greenhouse, and nitrogen and phosphorus fertilized plots of three different plant communities. This is the third year of collection data.

Nitrogen mineralization was determined on Arctic LTERToolik and Sag River tussock tundra using the buried bag method, Toolik Field Station, Alaska, Arctic LTER 1989-2013.

Nitrogen mineralization was determined on LTER and Sag River tussock tundra using the buried bag method. Yearly bags have been deployed every August since 1990.

Plant available NH4, NO3, and PO4 was determined at sites near ARC LTER Toolik acidic tundra and at a toposequence along the floodplain of the Sagavanirktuk River using 2 N KCL and weak HCL extracts, Arctic LTER 1987 to 2002

Plant available NH4, NO3, and PO4 was determined at sites near ARC LTER Toolik acidic tundra and at a toposequence along the floodplain of the Sagavanirktuk River using 2 N KCL and weak HCL extracts. This file complies data collected at different times from 1987 through 2001 and includes initial extracts taken for buried bag method of net nitrogen mineralization.

Carbon, nitrogen and phosphorus content in the seasonally thawed soils are described for four arctic tundra vegetation types located near the Toolik Field Station, Arctic LTER 1993.

Carbon, nitrogen and phosphorus content in thawed soils are described for four arctic tundra vegetation types located near the Toolik Field Station.

Plant available NH4, NO3, and PO4 was determined at three site (LTER Toolik acidic and nonacidic tundra and Sagwon acidic tundra) and three community combinations (tussock, watertrack, and snowbed) Arctic LTER 1997.

Plant available NH4, NO3, and PO4 was determined at three site (LTER Toolik acidic tundra, LTER Toolik nonacidic tundra, and Sagwon acidic tundra) and three community combinations (tussock, watertrack, and snowbed), three times during the season. pH was also determined in July and strong acid phosphorous in August.

Radiocarbon dates for an elevational gradient by Toolik Lake, North Slope of Alaska 1988.

Two cores of peat, approximately 15 cm2, were cut to the depth at which mineral soils were encountered at each site. The sites of sampling correspond to an elevational gradient leading from the lakeside upslope to the begining of the water track at the ridgetop. Each sample was divided into three sections, one section to be used for radiocarbon age , one for loss on ignition, and the remainder to be kept for future needs.

Soil temperatures, lake temperature, lake depth, and evaporation pan depth and pan water temperature data from Toolik Field Station, Toolik Lake, Alaska for 2000.

Weather data file for Arctic Tundra LTER site at Toolik Lake. Only the sensors that are measured every 10 minutes and averaged every three hours are include, i.e. soil temperatures, lake temperature, lake depth, and evaporation pan depth and pan water temperature.

Daily weather data file for Arctic Tundra LTER site at Toolik Lake, 2003.

Daily weather data file for Arctic Tundra LTER site at Toolik Lake. Included are daily averages and/or maximums and minimums of air, soil and lake temperature, wind speed, vapor pressure, and sum of global radiation and unfrozen precipitation recorded near Toolik Lake.

Soil temperatures, lake temperature, lake depth, and evaporation pan depth and pan water temperature data from Toolik Field Station, Toolik Lake, Alaska for 1993.

Soil temperature data from the Toolik Tussock Experimental plots, Arctic LTER 1990.

Soil temperature data from the Toolik Tussock Experimental plots. In 1990 a Campbell CR21x datalogger was installed in block 2 of the Toolik LTER experimental tussock plots. The plots are located on a hillside near Toolik Lake (68 38' N, 149 36'W). Sensors were placed in a control, fertilized, greenhouse, greenhouse fertilized, shade house and shade house fertilized sites.

Soil temperature data from the Arctic LTER Toolik Tussock Experimental plots, Arctic LTER 1991.

Soil temperature data from the Arctic LTER Toolik Tussock Experimental plots. In 1990 a Campbell CR21x datalogger was installed in block 2 of the Toolik LTER experimental tussock plots. The plots are located on a hillside near Toolik Lake (68 38' N, 149 36'W). Sensors were placed in a control, fertilized, greenhouse, greenhouse fertilized, shadehouse and shadehouse fertilized sites.

Toolik Inlet Discharge Data collected in summer 2000, Arctic LTER, Toolik Research Station, Alaska.

Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 2000 study season.

Toolik Inlet Discharge Data collected in summer 2001, Arctic LTER, Toolik Research Station, Alaska.

Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 2001 study season.

Toolik Inlet Discharge Data collected in summer 2002, Arctic LTER, Toolik Research Station, Alaska.

Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 2002 study season.

Toolik Inlet Discharge Data collected in summer 2003, Arctic LTER, Toolik Research Station, Alaska.

Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 2003 study season.

Toolik Inlet Discharge Data collected in summer 1991, Arctic LTER, Toolik Research Station, Alaska.

Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 1991 study season.

Toolik Inlet Discharge Data collected in summer 1992, Arctic LTER, Toolik Research Station, Alaska.

Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 1992 study season.

Toolik Inlet Discharge Data collected in summer 1993, Arctic LTER, Toolik Research Station, Alaska.

Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 1993 study season.

Toolik Inlet Discharge Data collected in summer 1994, Arctic LTER, Toolik Research Station, Alaska.

Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 1994 study season.