Data file describing the biogeochemistry of samples collected at various sites near Toolik Lake on the North Slope of Alaska. Sample site descriptors include a unique assigned number (sortchem), site, date, time, depth, and category (level of thermokarst disturbance). Physical measures collected in the field include temperature, electrical conductivity, and pH.
Data Set Results
Surface organic and mineral soil layers were sampled in retrogressive thaw slump disturbance scars and nearby undisturbed tundra to estmate the influence of this thermo-erosional--thermokarst--disturbance type on soil carbon (C) and nitrogen (N) pools. Within six independent sites, we identified multiple thaw slump scars and determined time after disturbance for each scar by (1) aging the population of tall deciduous shrubs rooted in the mineral soil and (2) by dating the basal layer of the re-accumulating soil organic matter.
Dataset includes rates of benthic gross primary productivity (GPP) in mmol O2/m2/d by irrandiance (I) in uE/m2/s curves and benthic respiration rates in mmol/m2/d from lakes E-5, E-6, Toolik, Fog Lake 2, Horn, Perched and Luna during the summer of 2009-2010.
Decadal file describing the chlorophyll a and primary production in various lakes near Toolik Research Station (68 38'N, 149 36'W) during summers from 1983 to 1989. Sample site descriptors include an assigned number (sortchem), site, date of analysis (incubation), time, depth and rates of primary production. The amount of chlorophyll a and pheophytin were also measured.
We measured the flux of bulk material and major macronutrients (carbon, nitrogen and phosphorus) from the water column to the benthos in four separate lakes during the summer of 2009. The lakes were chosen to investigate the impacts of disturbance on lake sedimentation. Two of the lakes, Dimple and Perched, were within catchments that were burned by the 2007 Anaktuvuk River wildfire. Two of the lakes, NE-14 and Perched, were receiving elevated sediment loads from thermokarst failures on their shorelines, and Toolik Lake was used as a reference lake.
Decadal file describing the chlorophyll a and primary production in various lakes near Toolik Research Station (68 38'N, 149 36'W) during summers from 2010 to 2020. Sample site descriptors include an assigned number (sortchem), site, date of analysis (incubation), time, depth and rates of primary production. The amount of chlorophyll a and pheophytin were also measured.
Decadal file describing the chlorophyll a and primary production in various lakes near Toolik Research Station (68 38'N, 149 36'W) during summers from 1990 to 1999. Sample site descriptors include an assigned number (sortchem), site, date of analysis (incubation), time, depth and rates of primary production. The amount of chlorophyll a and pheophytin were also measured.
Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 2008 study season.
Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 2007 study season.
Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 2005 study season. Water level was recorded with a Stevens PGIII Pulse Generator and water temperature and conductivity with a Campbell Scientific Model 247 Conductivity (EC) and Temperature probe. A Campbell Scientific CR510 data logger logged the data.
Tussock Watershed stream discharge, electrical conductivity, and temperature measurements from 1996.
Tussock Watershed stream discharge, electrical conductivity, and temperature measurements from 1997.
Tussock Watershed stream discharge, electrical conductivity, and temperature measurements from 1999.
Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 2006 study season. Water level was recorded with a Stevens PGIII Pulse Generator and water temperature and conductivity with a Campbell Scientific Model 247 Conductivity (EC) and Temperature probe. A Campbell Scientific CR510 data logger logged the data.
Tussock Watershed stream discharge, electrical conductivity, and temperature measurements from 2001.
Tussock Watershed stream discharge, electrical conductivity, and temperature measurements from 1994.
Tussock Watershed stream discharge, electrical conductivity, and temperature measurements from 1993.
Tussock Watershed stream discharge, electrical conductivity, and temperature measurements from 1992.
Tussock Watershed stream discharge, electrical conductivity, and temperature measurements from 2000.
Tussock Watershed stream discharge, electrical conductivity, and temperature measurements from 1991.
Tussock Watershed stream discharge, electrical conductivity, and temperature measurements from 1998.
Tussock Watershed stream discharge, electrical conductivity, and temperature measurements from 1995.
Tussock Watershed stream discharge, electrical conductivity, and temperature measurements from 2002.
Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 2003 study season.
Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 1993 study season.
Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 1997 study season.
Stream discharge, temperature, and conductivity of Toolik Inlet during the 2004 study season. Discharge measurements were taken throughout each season to determine the stage-discharge relationship.
Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 1994 study season.
Tussock Watershed stream discharge, electrical conductivity, and temperature measurements from 2003.
Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 1998 study season.
Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 2002 study season.
Tussock Watershed stream discharge, electrical conductivity, and temperature measurements from 2005.
Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 2001 study season.
Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 2000 study season.
Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 1995 study season.
Tussock Watershed stream discharge, electrical conductivity, and temperature measurements from 2004.
Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 1996 study season.
Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 1999 study season.
Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 2009 study season.
Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 1992 study season.
Stream discharge, stage height, temperature, and conductivity of Toolik Inlet during the 1991 study season.
Yearly file containing information on bacterial productivity. Samples were collected at various sites near Toolik Research Station (68 38'N, 149 36'W). Sample site descriptors include an assigned number (sortchem), site, date, time and depth.
Yearly file containing information on bacterial productivity. Samples were collected at various sites near Toolik Research Station (68 38'N, 149 36'W). Sample site descriptors include an assigned number (sortchem), site, date, time and depth.
Yearly file containing information on bacterial productivity. Samples were collected at various sites near Toolik Research Station (68 38'N, 149 36'W). Sample site descriptors include an assigned number (sortchem), site, date, time and depth.
Yearly file containing information on bacterial productivity. Samples were collected at various sites near Toolik Research Station (68 38'N, 149 36'W). Sample site descriptors include an assigned number (sortchem), site, date, time and depth.
Yearly file containing information on bacterial productivity. Samples were collected at various sites near Toolik Research Station (68 38'N, 149 36'W). Sample site descriptors include an assigned number (sortchem), site, date, time and depth.
Yearly file containing information on bacterial productivity. Samples were collected at various sites near Toolik Research Station (68 38'N, 149 36'W). Sample site descriptors include an assigned number (sortchem), site, date, time and depth.
Yearly file containing information on bacterial productivity. Samples were collected at various sites near Toolik Research Station (68 38'N, 149 36'W). Sample site descriptors include an assigned number (sortchem), site, date, time and depth.
Yearly file containing information on bacterial productivity. Samples were collected at various sites near Toolik Research Station (68 38'N, 149 36'W). Sample site descriptors include an assigned number (sortchem), site, date, time and depth.
Yearly file containing information on bacterial productivity. Samples were collected at various sites near Toolik Research Station (68 38'N, 149 36'W). Sample site descriptors include an assigned number (sortchem), site, date, time and depth.