humidity

In 1990 a Campbell datalogger was installed in block 2 of the Toolik LTER experimental tussock plots. Sensors were placed in a control, fertilized, greenhouse, greenhouse fertilized, shade house and shade house fertilized sites.

In each plot two strings (one in a tussock and one in a moss dominated area) of copper/copper-nickel thermocouple wires (TC) were installed at depths of 10, 20, and 40 cm. The following label codes were used: CT=control, GH = greenhouses, SH = shade houses, F=fertilized, GF= greenhouse fertilized, SF = Shade house fertilized, with a suffix of 1 for Eriophorum vaginatum tussock or 2 for moss bed. All measurements are in degree Celsius. All soil sensors were read every 15 minutes and averaged every 3 hours. During early years due to storage limitations just daily soil values were stored during the winter months.

In the control plot additional sensors include: global solar radiation, photosynthetically active radiation, unfrozen precipitation, and at 3 meters: air temperature, relative humidity, wind speed, and wind direction. In greenhouses and shade houses plots, air temperature, relative humidity and photosynthetically active radiation are also measured during the growing season. See Sensors for a detailed description of each sensor used. Each sensor is read every minute and averaged or totaled every hour.

The soil sensors have been very problematic.  The sensors strings would move with freezing and thawing of the soil.  Most strings were heaved up 3 - 10 cm.  Soil data are being evaluated to determent the usable data and will be added when completely error checked.

Weather Moist Acidic Tussock (MAT)
Abstract
Gaius Shaver, 2019 Hourly weather data from the Arctic LTER Moist Acidic Tussock Experimental plots from 2011 to present, Toolik Filed Station, North Slope, Alaska.. 10.6073/pasta/0bdf6cd129910f7b43a538777c221367
Hourly weather data from the LTER Moist Acidic Tussock Experimental plots. The station was installed in 1990 in block 2 of the Toolik LTER experimental moist acidic tussock plots. The plots are located on a hillside near Toolik Lake (68 38' N, 149 36'W). Global solar radiation, photosynthetic active radiation, unfrozen precipitation, air temperature, relative humidity, wind speed, and wind direction are measured at 3 meters. Additional sensors in greenhouses and shade houses plots measure air temperature, relative humidity and photosynthetic active radiation during the growing season.
Gaius Shaver, 1992 Hourly weather data from the Arctic LTER Moist Acidic Tussock Experimental plots from 1990 to 1999, Toolik Field Station, North Slope, Alaska.. 10.6073/pasta/431942c31aad96a5d0314939d68e2421
Hourly weather data from the LTER Moist Acidic Tussock Experimental plots. The station was installed in 1990 in block 2 of the Toolik LTER experimental moist acidic tussock plots. The plots are located on a hillside near Toolik Lake (68 38' N, 149 36'W). Global solar radiation, photosynthetic active radiation, unfrozen precipitation, air temperature, relative humidity, wind speed, and wind direction are measured at 3 meters.
Gaius Shaver, 2007 Daily weather and soil temperature data from the Arctic LTER Moist Acidic Tussock Experimental plots for 2006 to 2008, Toolik Filed Station, North Slope, Alaska.. 10.6073/pasta/90caef652e373def609e15ec63ede897
Daily weather and soil temperature data from the Toolik Tussock Experimental plots. In 1990 a Campbell CR21X data logger 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 plots.
Gaius Shaver, 1992 Daily weather and soil temperature data from the Arctic LTER Moist Acidic Tussock Experimental plots for 1990 to 2003, Toolik Filed Station, North Slope, Alaska.. 10.6073/pasta/d3e39f8ae19ada517e73e2a5754e46f7
Daily weather and soil temperature data from the Toolik Tussock Experimental plots. In 1990 a Campbell CR21X data logger 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 plots.
Gaius Shaver, 1993 Soil temperature data from the Arctic LTER Toolik Tussock Experimental plots, Arctic LTER 1991.. 10.6073/pasta/619c1b4cb6bd3f2407fa7c45de940f24
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.
Gaius Shaver, 1992 Soil temperature data from the Toolik Tussock Experimental plots, Arctic LTER 1990.. 10.6073/pasta/1d26326026df4ecd8d1234ef5b69fed5
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.
Gaius Shaver, 2002 Hourly weather data from the Arctic LTER Moist Acidic Tussock Experimental plots from 2000 to 2010, Toolik Filed Station, North Slope, Alaska.. 10.6073/pasta/a5ac5aff663fb91382c9373997c88c99
Hourly weather data from the LTER Moist Acidic Tussock Experimental plots. The station was installed in 1990 in block 2 of the Toolik LTER experimental moist acidic tussock plots. The plots are located on a hillside near Toolik Lake (68 38' N, 149 36'W). Global solar radiation, photosynthetic active radiation, unfrozen precipitation, air temperature, relative humidity, wind speed, and wind direction are measured at 3 meters.
Gaius Shaver, 1994 Soil temperature data from the Toolik Tussock Experimental plots, Arctic LTER 1992.. 10.6073/pasta/c646580bf24b1f47560da84001d5fe75
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 plots. All soil sensors are read every 15 minutes and averaged every 3 hours.
Weather Moist Non-Acidic Tussock (MNT)
Abstract
Sarah Hobbie, James A Laundre, 2021 Hourly temperature and humidity data from the LTER Moist Non-acidic Tussock Experimental plots (MNT).. 10.6073/pasta/a48892da5bc9eab27b18d2364dea6998
Hourly data from the Toolik Moist Non-acidic Tussock Experimental plots (MNT). In 1999 a Campbell CR10x data logger was installed in block 2 of the experimental plots. The plots are located on a hillside near Toolik Lake (68 38' N, 149 36'W). Sensors were placed in control and greenhouse sites. Soil temperature profiles are reported in another file (1999-present_MNTsoil).
Multi-trophic Impacts Weather
Abstract
Natalie Boelman, 2013 Daliy weather data (wind, temperatrue, humididty, pressure, precipitation) from Roche Mountonnee , in the northern foothills of the Brooks Range, Alaska, summers 2010-2014.. 10.6073/pasta/82051b684ec80c6039e32ee4e72e21be
Daily weather data from mid May to late July 2011 to 2013 from Roche Moutonnee (south of Toolik Field Station and Arctic LTER), in the northern foothills of the Brooks Range, Alaska. Parameters measured include: wind speed, wind directions, temperature, humidity, pressure and precipitation.
Natalie Boelman, 2013 Daliy weather data from Sagavanirktok River DOT site, in the northern foothills of the Brooks Range, Alaska, May-July 2010-2014.. 10.6073/pasta/b95d5256dc6a00c506937a0bc698a39c
Daliy weather data from mid May to late July 2011 to 2013 from Sagavanirktok Department of Transport (DOT) site (south of Toolik Field Station and Arctic LTER), in the northern foothills of the Brooks Range, Alaska. Parameters measured include: wind speed, wind directions, temperatrue, humididty, pressure and precipitation. (Rich, et al 2013).
Weather Toolik Field Station Met
Abstract
Gaius Shaver, 1991 Hourly weather data from Toolik Field Station Met Station, ARC LTER, Alaska for 1988 to 2007.. 10.6073/pasta/60a12e84a0a407de33acc074153cdb20
Hourly weather data from the Arctic Tundra LTER site at Toolik Lake. The following parameters are measured every minute and averaged or totaled every hour; air temperature and relative humidity at 1 and 5 meters, wind speed at 1 and 5 meters, wind direction at 5 meters, global solar radiation, photosynthetically active radiation, net radiation (Fritschen type), barometric pressure, and unfrozen precipitation
Gaius Shaver, 2006 Hourly weather data from Toolik Field Station, ARC LTER, Alaska for 2006.. 10.6073/pasta/fa2d9a2bcc52b510bbfcc76d6a8077f2
Hourly weather data from the Arctic Tundra LTER site at Toolik Lake. The following parameters are measured every minute and averaged or totaled every hour: air temperature and relative humidity at 1 and 5 meters, wind speed at 1 and 5 meters, wind direction at 5 meters, global solar radiation, photosynthetically active radiation, barometric pressure, and unfrozen precipitation.
Gaius Shaver, 2001 Hourly weather data from Toolik Field Station, ARC LTER, Alaska for 1999.. 10.6073/pasta/0a9d531dd400494d267c992bb14bef4b
Hourly weather data from the Arctic Tundra LTER site at Toolik Lake. The following parameters are measured every minute and averaged or totaled every hour: air temperature and relative humidity at 1 and 5 meters, wind speed at 1 and 5 meters, wind direction at 5 meters, global solar radiation, photosynthetically active radiation, barometric pressure, and unfrozen precipitation.
Gaius Shaver, 2009 Hourly weather data from Toolik Field Station, ARC LTER, Alaska for 2008.. 10.6073/pasta/837290c9f6274c518004b16e65cf48e5
Hourly weather data from the Arctic Tundra LTER site at Toolik Lake. The following parameters are measured every minute and averaged or totaled every hour: air temperature and relative humidity at 1 and 5 meters, wind speed at 1 and 5 meters, wind direction at 5 meters, global solar radiation, photosynthetically active radiation, barometric pressure, and unfrozen precipitation.
Gaius Shaver, 2000 Hourly weather data from Toolik Field Station, ARC LTER, Alaska for 1998.. 10.6073/pasta/ad314acaefba2dd3388d2e323d86f04b
Hourly weather data from the Arctic Tundra LTER site at Toolik Lake. The following parameters are measured every minute and averaged or totaled every hour: air temperature and relative humidity at 1 and 5 meters, wind speed at 1 and 5 meters, wind direction at 5 meters, global solar radiation, photosynthetically active radiation, barometric pressure, and precipitation.
Gaius Shaver, 2002 Hourly weather data from Toolik Field Station, ARC LTER, Alaska for 2000.. 10.6073/pasta/cea07ddca4b79139ea1e2c6f049b2b4f
Hourly weather data from the Arctic Tundra LTER site at Toolik Lake. The following parameters are measured every minute and averaged or totaled every hour: air temperature and relative humidity at 1 and 5 meters, wind speed at 1 and 5 meters, wind direction at 5 meters, global solar radiation, photosynthetically active radiation, barometric pressure, and unfrozen precipitation.
Gaius Shaver, 2003 Hourly weather data from Toolik Field Station, ARC LTER, Alaska for 2002.. 10.6073/pasta/e4c1accf140f9b56e9e015b32eebfd41
Hourly weather data from the Arctic Tundra LTER site at Toolik Lake. The following parameters are measured every minute and averaged or totaled every hour: air temperature and relative humidity at 1 and 5 meters, wind speed at 1 and 5 meters, wind direction at 5 meters, global solar radiation, photosynthetically active radiation, barometric pressure, and unfrozen precipitation.
Gaius Shaver, 2003 Hourly weather data from Toolik Field Station, ARC LTER, Alaska for 2001.. 10.6073/pasta/b6edcba4b74d2a09aec83289b81b1214
Hourly weather data from the Arctic Tundra LTER site at Toolik Lake. The following parameters are measured every minute and averaged or totaled every hour: air temperature and relative humidity at 1 and 5 meters, wind speed at 1 and 5 meters, wind direction at 5 meters, global solar radiation, photosynthetically active radiation, barometric pressure, and unfrozen precipitation.
Gaius Shaver, 2004 Hourly weather data from Toolik Field Station, ARC LTER, Alaska for 2003.. 10.6073/pasta/1a0bfb9eef9dd9f64e643cd737fc448d
Hourly weather data from the Arctic Tundra LTER site at Toolik Lake. The following parameters are measured every minute and averaged or totaled every hour: air temperature and relative humidity at 1 and 5 meters, wind speed at 1 and 5 meters, wind direction at 5 meters, global solar radiation, photosynthetically active radiation, barometric pressure, and unfrozen precipitation.
James A Laundre, Gaius Shaver, 2022 A multi-year DAILY weather file for the Toolik Field Station at Toolik Lake, Alaska starting 1988 to present.. 10.6073/pasta/3b74363b40f858a2dcbe1b83790aee77
A multi-year DAILY weather file for the Arctic Tundra Long-Term Ecological Research (LTER) site at Toolik Lake, AK. Included are daily averages and/or maximums and minimums of air, wind speed, soil temperature, and sum of global radiation and precipitation.

In 2008 Toolik Field Station took over maintenance of the main weather station. See http://toolik.alaska.edu/edc/index.php for current weather data. In addition to the main weather station the Arctic LTER maintains several stations that collect data on the experimental plots.
Gaius Shaver, 2005 Hourly weather data from Toolik Field Station, ARC LTER, Alaska for 2004.. 10.6073/pasta/9e7e200dab5d1d0c903deb947f5e881f
Hourly weather data from the Arctic Tundra LTER site at Toolik Lake. The following parameters are measured every minute and averaged or totaled every hour: air temperature and relative humidity at 1 and 5 meters, wind speed at 1 and 5 meters, wind direction at 5 meters, global solar radiation, photosynthetically active radiation, barometric pressure, and unfrozen precipitation.
Landscape Interactions Lake Climate
Abstract
George Kling, 2000 Meteorological data collected on Toolik Lake during the ice free season since 1989 to 2009, Arctic LTER, Toolik Research Station, Alaska.. 10.6073/pasta/35a48d475054bb60dcc0de3bd199be40
Yearly file describing the metological conditions on Toolik Lake (named the Toolik Lake Climate station), adjacent to the Toolik Field Research Station (68 38'N, 149 36'W). This is a floating climate station and should not be confused with the Toolik Field Station Climate site (TFS Climate Station or Met Station) which is a terrestrial station (located on land). Note that this land station has been called the "Toolik Main Climate Station", and the station on the lake is located where the main lake sampling site is located so it has also been called the Toolik Lake Main Climate Station.
George Kling, 2007 Meteorological data collected on Lake E5 during the ice free season since 2000 to present, Arctic LTER, Toolik Research Station, Alaska.. 10.6073/pasta/c0a6a47de1a8378942612fe97297ad85
Yearly file describing the metological data on Lake E5 (Lake E5 Climate station) near the Toolik Field Research Station (68 38'N, 149 36'W). Measurements include air temperature, relative humidity, wind direction, and wind speed..
George Kling, 2019 Meteorological data collected on Toolik Lake during the ice free season for 2010-2012, Arctic LTER, Toolik Research Station, Alaska. 10.6073/pasta/7dbf0cfaec3efa3f8bbef703e7cf4825
File describing the metological conditions on Toolik Lake (named the Toolik Lake Climate station), adjacent to the Toolik Field Research Station (68 38'N, 149 36'W).  This is a floating climate s
George Kling, 2022 Meteorological data collected on Toolik Lake during the ice free season for 2014-2020, Arctic LTER, Toolik Research Station, Alaska. 10.6073/pasta/f881ff2cf8d9bd5dc5cef91b5684f870
File describing the meteorological conditions on Toolik Lake (named the Toolik Lake Climate station), adjacent to the Toolik Field Research Station (68 38'N, 149 36'W).  This is a floating climat
Weather Wet Sedge
Abstract
James A Laundre, 2022 Hourly weather data from the Arctic LTER Wet Sedge Inlet Experimental plots from 1994 to present, Toolik Field Station, North Slope, Alaska.. 10.6073/pasta/87bb699469101659867f951b69219c37
Hourly weather data from the Arctic Tundra LTER wet sedge experimental site at Toolik Lake. The following parameters are measured every minute and averaged every hour: control plot air temperature and relative humidity at 3 meters and greenhouse plot air temperature and relative humidity at 1 meters (inside the greenhouse).
Terrestrial Trace Gases
Abstract
Gaius Shaver, 2012 Daily summaries of photosynthetically active radiation (PAR), relative humidity, and temperature data logged above, within, and below Betula nana and Salix pulchra shrub canopies during the summer of 2012 in vicinity of Toolik Lake, Alaska.. 10.6073/pasta/101237eb155ec6efe1be26807c1025ec
This file contains limited daily summaries of PAR, relative humidity, and temperature data monitored above, within, and below Betula nana and Salix pulchra shrub canopies at two locations near Toolik Lake, Alaska during the summer of 2012. The location of the PAR sensor and dataloggers were co-located with the LTER shrub plots (block 1 and 2), also used for the chamber flux and point frame measurements taken this same year.
Gaius Shaver, 2012 Photosynthetically active radiation (PAR) measurements, relative humidity, and temperature data logged every five minutes from Betula nana and Salix pulchra shrub canopies, summer of 2012 in vicinity of Toolik Lake, Alaska.. 10.6073/pasta/c87015fc3a8f7266cd47968a5a6db76a
This file contains PAR , relative humidity, and temperature data logged every five minutes from within, below, and above Betula nana and Salix pulchra shrub canopies at two locations near Toolik Lake, Alaska during the summer of 2012. The location of the PAR sensor and dataloggers were co-located with the LTER shrub plots (block 1 and 2), also used for the chamber flux and point frame measurements taken this same year.
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