Soil temperatures, lake temperature, lake depth, and evaporation pan depth and pan water temperature data from Toolik Field Station, Toolik Lake, Alaska for 1999.

Abstract: 

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.

Project Keywords: 

Data set ID: 

1540

EML revision ID: 

1
Published on EDI/LTER Data Portal

Citation: 

Shaver, G. 2001. Soil temperatures, lake temperature, lake depth, and evaporation pan depth and pan water temperature data from Toolik Field Station, Toolik Lake, Alaska for 1999. Environmental Data Initiative. http://dx.doi.org/10.6073/pasta/a0f31997240b80f479e0660aac14f2c1
People

Owner/Creator: 

Contact: 

Additional People: 

Associated Researcher
Dates

Date Range: 

Saturday, May 1, 1999 to Wednesday, September 1, 1999

Publication Date: 

2001

Methods: 

Weather data has been collected at Toolik Lake by a Campbell 21x datalogger since June 1988. Sensors that are measured every minute and averaged or totaled every hour include: 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. Sensors measured every 10 minutes and averaged every three hours include: soil temperatures, lake temperature, lake depth, and evaporation pan depth and pan water temperature. Net radiation and pan evaporation are only measured during the summer months. The hourly data are in the file 99DLTLH.DAT, the three hourly data are in 99DLTLO.DAT, and daily summaries are in 99DLTLD.DAT. A second Campbell 21x datalogger about 700 meters from the main weather station logs air and soil temperatures and photosynthetically active radiation in the experimental treatment plots. Treatments include greenhouse, shading, and fertilization. In the control plot wind speed and direction, global solar radiation and unfrozen precipitation are also measured. This station is also used as a backup to the main weather station. The full description of the sensors and site is in file SENSORS.DOC. The original data is in file 99DLTDAT.ZIP which is archived at The Marine Biological Lab, Woods Hole, MA.

Notes: Lake temperature is measured where the lake depth measurement is made. Lake Depth sensor stopped working in December 1998. It was replaced with a temporary 2.5 psi depth sensor for the summer. In August 1999 a 5 psi sensor was installed. See notes under comment variable. Soil temperatures consist of two profiles in a moss dominated plant community. They are within 3 meters of the weather station. Evaporation pan temperature sensor was not placed in the water this summer.

Sampling Description.

None

Version Changes: 

Log of changes:

10Dec99 Checked documentation and data format for LTER database. JL

For Archival Use:

DATE RECEIVED: June 1999
DATA FILE ENTERED BY: Jim Laundre
DATA FILE VALIDATION:
NAME: Jim Laundre
DATE: 14OCT99
Version 3: Metadata updated to newer form (with sites sheet). Units updated to current standards. Discrepancy with variable names fixed. CH April 2013.
Version 4: Corrected Distrubution URL. It had xlsfiles in the path. Jim L 19Jun14
Version 5: Changed Distrubution URL since the LTER network DAS system is being discontinued. JimL 9Apr2015

Sites sampled.

Download a comma delimited (csv) or Excel file (includes metadata and data sheets).

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File 99dltlo.csv

Soil temperatures,... File Details

Office spreadsheet icon 99dltlo.xls

Excel file with... File Details