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.
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 Title:||Ground temperature at and near thermokarst sites around Toolik Lake Field Station, Summer 2009-Summer 2012|
|Investigator 1:|| |
|Organization:||Colorado State University|
|Address line 2:||Department of Civil and Environmental Engineering|
|Address line 3:|
|Investigator 2:|| |
|Organization:||Idaho State University|
|Address line 2:||Department of Geosciences|
|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_GT01dot05_temp is located outside 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
Online URL: http://ecosystems.mbl.edu/ARC/
|DATA FILE INFORMATION:|
|Data File URL||http://metacat.lternet.edu/das/dataAccessServlet?docid=knb-lter-arc.10470&urlTail=thermokarst/soil/data/20092012_GT_IM2_GT01dot05.csv|
|Data File Name||20092012_GT_IM2_GT01dot05|
|Number of Data Records||27313|
|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:|
|Location Name||IM2_GT01dot05||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||68.544||In Decimal Degrees|
|Longitude||149.5231||In Decimal Degrees|
|Elevation||In Meters||In Meters|
|Link to Google Map||View on Google Map|
|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).
|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|
|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|
|117cmT||Temperature at 117cm depth in soil||Number||celsius||-99999=Missing or Not Measured|
|Notes||Information about gap-filling, interpolation, or problematic data points||Text|