Abstract:
Stream discharge, temperature, and conductivity of Toolik Inlet during the 2004 study season. Discharge measurements were taken throughout each season to determine the stage-discharge relationship.
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Methods:
For discharge measurement protocol, see the Land-Water protocol accessible from the Land-Water mainpage on the Arctic LTER web page or at http://www-personal.umich.edu/~gwk and clicking on the protocol link at the bottom of the page.
Water level was recorded continuously with with a Stevens PGIII Pulse Generator connected to a Campbell Scientific CR510 datalogger. Additionally, we deployed a Campbell Scientific Model 247 Conductivity (EC) and Temperature probe which also recorded to the CR510.
Discharge measurements were taken throughout each season to determine the stage-discharge relationship. When the stage heights exceed our range from the study year's rating curve, we apply a standardized composite rating curve (from 1996-2013) for Toolik Inlet to solve for stream discharge.
Temperature data (when measured) were rounded to nearest tenth of a degC, in accordance with sensor manufacturer's specifications
Conductivity data (when measured) were rounded to nearest uS/cm, in accordance with sensor manufacturer's specifications
Discharge data were rounded to 3 significant digits
Field and Lab Methods and Protocols, Kling lab, University of Michigan
http://arc-lter.ecosystems.mbl.edu/landwater/lw_protocols.html
Quality Assurance:
Discharge values were corrected based on updated rating curves. Changed the variable units for conductivity. JAD March2016
Version Changes:
Entered metadata into new metadata form.
Version 2: Data URL was changed to point to the LTERNET Data Access server
Version 3: LTERNET Data Access server proxy changed from das.lternet.edu to metacat.lternet.edu.
Version 4: Added LTERNET Data Access server proxy for Excel files.
Adjusted discharge measurements based on two rating curves, the Yearly and Composite. See Methods.
Version 5: Added better title and change the template to php. Feb 210 JimL
Version 6: Updated units to current standards. Updated metadata form to newer version (without site sheet). CH 4Feb2013 Updated to newer metadata form (with sites sheet) Ch March 2013.
Version 7: Checked keywords against the LTER network preferred list and replaced non-preferred terms. Jim L 15Jan14
Version 8: Changed Distribution URL since the LTER network DAS system is being discontinued. JimL 9Apr2015
Version 10: Discharge values were corrected based on updated rating curves. Changed the variable units for conductivity. JAD 21March2016
Sites sampled.
EML Link:
Full Metadata and data files (either comma delimited (csv) or Excel) - Environmental Data Initiative repository.
Use of the data requires acceptance of the data use policy --> Arctic LTER Data Use Policy |