LTER network Toolik Field Station MBLhome page

Sun and Moon

Toolik Weather Graphs

Arctic LTER Weather Stations

Toolik Webcam

Animated Gif of yesterday's Webcam

Arctic LTER Inhouse login

  Our web site has beed moved. Please update your bookmarks for the new site.

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 

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 via LTER Data Portal
Dataset ID:1992_Kuparuk_Temp_Q.06
Dataset Title:Kuparuk River 1992 summer temperature and discharge calculated from stage height.
Investigator 1: 
First Name:Breck
Last Name:Bowden
Organization:University of Vermont
Address line 2:303D Aiken Center
Address line 3:Rubenstein School of Environment and Natural Resources
Zip Code:05405
Investigator 2: 
First Name:Bruce
Last Name:Peterson
Organization:Marine Biological Laboratory
Address line 2:7 MBL St.
Address line 3:The Ecosystems Center
City:Woods Hole
Zip Code:02543
Investigator 3: 
First Name:Linda
Last Name:Deegan
Organization:Marine Biological Laboratory
Address line 2:7 MBL St.
Address line 3:The Ecosystems Center
City:Woods Hole
Zip Code:02543
Investigator 4: 
First Name:Alex
Last Name:Huryn
Organization:University of Alabama
Address line 2:
Address line 3:
Zip Code:
Investigator 5: 
First Name:Elissa
Last Name:Schuett
Organization:University of Vermont
Investigator 6: 
First Name:Adrian
Last Name:Green
Address line 2:
Address line 3:
Zip Code:
Investigator 7: 
First Name:Karie
Last Name:Slavik
Associate Investigators:
Keywords:discharge, water temperature, streams, stream discharge
Abstract:Stream temperature and discharge each summer, water temperature and stream discharge are determined for the Kuparuk River. In many years, temperature and stream height were recorded manually each day. In recent years, data loggers have measured stream temperature and stream height at regular intervals. The Kuparuk River data is maintained by Dough Kane on the Water and Environmental Research Center at UAF ( Stream height is converted into stream discharge based on a rating curve calculated from manual discharge measurements throughout the season. The principal investigator in charge of the temperature and discharge measurements is Dr. Breck Bowden.
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:
Data File URL
Data File Name 1992_Kuparuk_Temp_Q.csv
Beginning Date 6/27/1992
End Date 8/18/1992
Number of Data Records 337
Other Files to Reference
Availability Status 1
Quality Control Information
Maintenance Description annual data updated to new file
Log of Changes: For Archival Use: DATE RECEIVED: November 3, 1992 DATA FILE ENTERED BY: Nancy Parmentier DATA FILE VALIDATION: NAME: Nancy Parmentier DATE: November 3, 1992
Version 3: 8/8/13: EJE organized metadata and data into this file. TEMPERATURE data ADDED to discharge
Version 4: Keywords updated 23Jan14
Version 5: Changed Distrubution URL since the LTER network DAS system is being discontinued. JimL 9Apr2015
Version 6: Changed Distrubution URL since the LTER network DAS system is being discontinued. JimL 9Apr2015
Location Name Kuparuk 1.2k  
Geographic Description Kuparuk River, North Slope of Alaska, re-fertilized reach, formerly the recovery reach after historic fertilization  
Location Bounding Box    
West Bounding Coordinate    
East Bounding Coordinate    
North Bounding Coordinate    
South Bounding Coordinate    
OR if single point location    
Latitude 68.645381  
Longitude -149.407194  
Link to Google Map View on Google Map  
Organisms studied
Methods:Stage height measurements were taken 1 km upstream of the Kuparuk River crossing at the Dalton Highway. A Stevens Water Level Recorder with a float in a sitting well was used along with a pressure transducer to take a continuous record of stage height. Measurements were also taken at the water line from a measuring stick placed vertically on the upstream side between the two culverts. Readings on the measuring stick were in centimeters up from the bottom of the river.

Discharge measurements were made using both a Marsh-McBirney 201 flow meter and a Gurney flow meter. Calibration measurements were at 60% of depth at 20-30 points along a cross sectional transect of the river, downstream of the culverts at the pipeline crossing. Raw data from calibration measurements are available.

Due to early June high waters, the standpipe from 1991 was washed out and one of the culverts was badly damaged. The resulting erosion and road washout from the flood altered the stream morphology. A new standpipe was installed in late June, but was also washed out on July 1st. On July 4th another standpipe was installed. The data logger would normally supply missing data; however, the pressure transducer and the data logger were both lost in floods. The pressure transducer was washed downstream and lost in the early June flood. The data logger disappeared in the August 26 flood, prior to data collection. As a result, some data was lost.

Once again, a new discharge rating curve was developed for this year. The rating curve equation used was y = (-3.82 + 0.041*x )^2, with x as the stage height. Discharge was calculated for six stage height readings a day, taken at four hour intervals. Stage height was not accurately represented on the following days due to missing stage height data:

June 27 Only 1 reading - 1600 AST
June 28 No readings
June 29 No reading at 0000 and 0400
July 1 No reading at 2000
July 2 Only 1 reading - 1000
July 3 Only 2 readings - 0930 and 1200
July 4 No reading at 0000 and 0400
Aug 14 No reading at 1600 and 2000
Aug 15 Only 2 readings - 1600 and 2000

Breck Bowden performed some surveying at the Kuparuk road crossing to establish permanent reference marks and increase year to year continuity.

Temperature readings were taken daily with a 12 blunt stem reotemp dial-head thermometer at a location between the two culverts upstream of the road. There are several days within missing temperature data. There are also days where multiple temperature readings were taken.

Data Table

Variable Name Variable Description Data Type Units DateTime Format Code Information Missing Value Code
Site Code LTER site code text        
Distance from dripper (km) Distance from 1983 dripper number kilometer      
River site of measurement (named) text        
Date Date datetime   dd-mmm-yy    
Time Tine of Reading (Alaska Standard Time) datetime   hh:mm    
Stage Height (ft) stage height recorded by the data logger number foot     -1111=no data
LTER Q (m3/sec) LTER calculated discharge number meterCubedPerSecond     -1111=no data
Temperature (C) Water Temperature (Celsius) number celsius     -1111=no data
Comments additional information about individual data points text        

Please contact with questions, comments, or for technical assistance regarding this web site.