LTER network Toolik Field Station MBLhome page

Weather at Toolik

Toolik Weather Graphs

Arctic LTER Weather Stations

Toolik Webcam

Animated Gif of yesterday's Webcam

Arctic LTER Inhouse login

Arctic LTER Database

Arctic LTER Database

Conditions of Use

The re-use of scientific data has the potential to greatly increase communication, collaboration and synthesis within and among disciplines, and thus is fostered, supported and encouraged. Permission to use this dataset is granted to the Data User free of charge subject to the following terms:

1) Acceptable use. Use of the dataset will be restricted to academic, research, educational, government, recreational, or other not-for-profit professional purposes. The Data User is permitted to produce and distribute derived works from this dataset provided that they are released under the same license terms as those accompanying this Data Set. Any other uses for the Data Set or its derived products will require explicit permission from the dataset owner.
2 ) Redistribution. The data are provided for use by the Data User. The metadata and this license must accompany all copies made and be available to all users of this Data Set. The Data User will not redistribute the original Data Set beyond this collaboration sphere.
3 ) Citation. It is considered a matter of professional ethics to acknowledge the work of other scientists. Thus, the Data User will properly cite the Data Set in any publications or in the metadata of any derived data products that were produced using the Data Set. Citation should take the following general form: Creator, Year of Data Publication, Title of Dataset, Publisher, Dataset identifier. For example:

Shaver, G. 1989. Above ground biomass in acidic tussock tundra experimental site, 1989, Arctic LTER, Toolik, Alaska. Arctic LTER, Marine Biological Lab, Woods Hole, Ma 02543. 1989gsttbm http://ecosystems.mbl.edu/arc/terrest/biomass/index.shtml 

4 ) Acknowledgement. The Data User should acknowledge any institutional support or specific funding awards referenced in the metadata accompanying this dataset in any publications where the Data Set contributed significantly to its content. Acknowledgements should identify the supporting party, the party that received the support, and any identifying information such as grant numbers. For example:

Data sets were provided by the Arctic LTER. This material is based upon work supported by the National Science Foundation under Grants #DEB-981022, 9211775, 8702328; #OPP-9911278, 9911681, 9732281, 9615411, 9615563, 9615942, 9615949, 9400722, 9415411, 9318529; #BSR 9019055, 8806635, 8507493.

5 ) Notification. The Data User will notify the Data Set Contact when any derivative work or publication based on or derived from the Data Set is distributed. The Data User will provide the data contact with two reprints of any publications resulting from use of the Data Set and will provide copies, or on-line access to, any derived digital products. Notification will include an explanation of how the Data Set was used to produce the derived work.
6 ) Collaboration. The Data Set has been released in the spirit of open scientific collaboration. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.

By accepting this Data Set, the Data User agrees to abide by the terms of this agreement. The Data Owner shall have the right to terminate this agreement immediately by written notice upon the Data User's breach of, or non-compliance with, any of its terms. The Data User may be held responsible for any misuse that is caused or encouraged by the Data User's failure to abide by the terms of this agreement.

Disclaimer

While substantial efforts are made to ensure the accuracy of data and documentation contained in this Data Set, complete accuracy of data and metadata cannot be guaranteed. All data and metadata are made available "as is". The Data User holds all parties involved in the production or distribution of the Data Set harmless for damages resulting from its use or interpretation.

Dataset URLs:METADATA: HTML, Rich Text, XML(EML compliant)
DATA: Comma Delimited, Excel file with Metadata and data
Dataset ID:IM2_GT01dot06_temp
Dataset Title:Ground temperature at and near thermokarst sites around Toolik Lake Field Station, Summer 2009-Summer 2012
Investigator 1: 
First Name:Michael
Last Name:Gooseff
Organization:Colorado State University
Address line 2:Department of Civil and Environmental Engineering
Address line 3:
City:Fort Collins
State:CO
Zip Code:80523
Country:US
Investigator 2: 
First Name:Sarah
Last Name:Godsey
Organization:Idaho State University
Address line 2:Department of Geosciences
City:Pocatello
State:ID
Zip Code:83209
Country:US
Associate Investigators:
Keywords:ARCSS/TK, ground temperature, retrogressive thaw slump, thermokarst, Toolik Field Station
Abstract:Ground temperatures were measured hourly at ~20-50cm intervals below the ground surface inside and adjacent to thermokarst features in the region around Toolik Field Station. Ground temperatures were measured using Hobo thermistors. Temperatures at 0 and 20cm depths were measured directly in the ground whereas 40cm and deeper measurements were logged from dry wells installed in summer 2009. IM2_GT01dot06_temp is located inside of the I-Minus-2 Gulley thermokarst, downslope.
For questions about the Metadata and data contact the Investigators.
For information about this web site contact:
Arctic LTER Information Manager
The Ecosystems Center
Marine Biological Lab
7 MBL St
Woods Hole, MA 02543
Phone (508) 289 7496
Email: arc_im@mbl.edu
Online URL: http://ecosystems.mbl.edu/ARC/
DATA FILE INFORMATION:
Data File URL http://metacat.lternet.edu/das/dataAccessServlet?docid=knb-lter-arc.10471&urlTail=thermokarst/soil/data/20092012_GT_IM2_GT01dot06.csv
Data File Name 20092012_GT_IM2_GT01dot06
Beginning Date 6/29/2009
End Date 8/7/2012
Number of Data Records 27311
Other Files to Reference
Availability Status Type 1
Quality Control Information Gaps have been filled when an interpolation is possible. Outliers have been filtered as stated in the notes.
Maintenance Description Data was maintained by the Gooseff lab during 2009-2012. Some data continues to be collected, please contact the lab for updates.
Log of Changes:
 
RESEARCH LOCATION:      
Location Name IM2_GT01dot06 Select Site or enter New One  
Geographic Description I-minus-2 gully Thermokarst Enter Description  
Location Bounding Box      
West Bounding Coordinate      
East Bounding Coordinate      
North Bounding Coordinate      
South Bounding Coordinate      
OR if single point location      
Latitude 68.5439 In Decimal Degrees  
Longitude 149.5223 In Decimal Degrees  
Elevation In Meters In Meters  
Link to Google Map View on Google Map    
       
 
TAXONOMIC COVERAGE:
Organisms studied
 
Methods:Ground temperatures were measured hourly at ~20-50cm intervals below the ground surface inside and adjacent to thermokarst features in the region around Toolik Field Station. Ground temperatures were measured using Onset/Hobo thermistors (either 2-channel U23, 4-channel U12, or individual measurements logged in an H23 datalogger). Temperatures at 0 and 20cm depths were measured directly in the ground whereas 40cm and deeper measurements were logged from dry wells installed in summer 2009.

At the Toolik River and I-minus-2 gulley thermokarsts, sites were chosen inside and outside of the thermokarst feature, and at three landscape positions: above the headwall of the thermokarst, at mid-slope, and a low-slope position. At the NE-14 retrogressive thaw slump, sites were chosen according to landscape position (upslope and downslope) at each of three locations (inside the new slump, inside the revegetated scar of the old slump, and outside of both slumps on an adjacent hillslope).

Data Table

Variable Name Variable Description Data Type Units DateTime Format Code Information Missing Value Code
Site ID Code to describe location of site at particular thermokarst Text        
Year Year that the measurement was taken datetime   YYYY    
Month Month that the measurement was taken (1=Jan through 12=Dec) Number number      
Day Day of the month that the measurement was taken Number number      
Hour Hour (0-23 h) that the measurement was taken Number number      
Minute Minute that the measurement was taken Number number      
Second Second that the measurement was taken Number number      
0cmT Temperature at 0cm depth in soil Number celsius     -99999=Missing or Not Measured
20cmT Temperature at 20cm depth in soil Number celsius     -99999=Missing or Not Measured
40cmT Temperature at 40cm depth in soil Number celsius     -99999=Missing or Not Measured
60cmT Temperature at 60cm depth in soil Number celsius     -99999=Missing or Not Measured
80cmT Temperature at 80cm depth in soil Number celsius     -99999=Missing or Not Measured
100cmT Temperature at 100cm depth in soil Number celsius     -99999=Missing or Not Measured
120cmT Temperature at 120cm depth in soil Number celsius     -99999=Missing or Not Measured
150cmT Temperature at 150cm depth in soil Number celsius     -99999=Missing or Not Measured
Notes Information about gap-filling, interpolation, or problematic data points Text        
Please contact arc_im@mbl.edu with questions, comments, or for technical assistance regarding this web site.