LakeHoareTracer_Dec_2012 English utf8 dataset McMurdo Dry Valleys LTER http://mcmlter.org/ 2015-07-24 ISO 19115-2 Geographic Information - North American Profile Metadata - Data with Biological Extensions ISO 19115-2:2009(E) Lake Hoare Tracer Test Stream Chemistry 2015-07-24 publication Devin Castendyk Golder Associates Inc. https://www.golder.com castendn@gmail.com pointOfContact documentDigital As part of the McMurdo Dry Valleys, Long Term Ecological Research (MCM-LTER) project in Antarctica, a LiCl tracer was injected into Andersen Creek in the Lake Hoare basin on 17 December 2012.  The purpose of this study was to determine the fate of stream water below lake ice.  Injection began at 20:30 hours and continued for two hours.  Water samples were collected at half-hour intervals from 5 stream sites and 15 ice boreholes over a 4 hour period beginning at the start of injection.  Samples were analyzed for major cations and major anions using an ion chromotograph at McMurdo Station.  Results show that stream water moved West along the lake shoreline below the moat ice, and did not generate interflow below the perennial lake ice Name: Chris Jaros Role: field crew Name: Michael N. Gooseff Role: associated researcher Name: Tyler J. Kohler Role: field crew Name: Diane M. McKnight Role: associated researcher Name: Adam Wlostowski Role: field crew Name: Kathleen A. Welch Role: lab crew completed McMurdo Dry Valleys LTER http://mcmlter.org/ English USGS site 9; coordinates taken from 1996-97 GPS measurements at center of weir Parent Stream: Andersen Creek Provenance : GPS96-97.DOC ID: andrsn_h1 162.906356800000 162.906356800000 -77.622772000000 -77.622772000000 ground condition 2012-12-16 2012-12-17 S, I, T Prefix indicates: ice free stream sample (S); inlet connecting stream moat to shoreline moat (I); and ice borehole transect (T)                                                                                          s, d    Suffix denoting: shallow water sample collected directly below lake ice (s); deep water sample collected 1 m below lake ice (d)                                                                                          ND. Concentration below detection limit of ion chromatograph.   Sample depths are relative to the ice surface https://mcm.lternet.edu/sites/default/files/data/LakeHoareTracer_Dec_2012.csv LakeHoareTracer_Dec_2012 eng; US McMurdo Dry Valleys LTER LakeHoareTracer_Dec_2012 Record Delimiter : \r\n Number of Header Lines : 11 Number of Footer Lines : 0 Orientation : Column Quote Character : "Field Delimiter : , false Location ID Sampling Location ID code Latitude Latitude where sample was taken, in decimal degrees Longitude Longitude where sample was taken, in decimal degrees Elevation (m) Elevation as reported by GPS Ice thickness (cm) Lake Ice thickness where sample was taken, in centimeters. Value is zero if no ice (a stream) Sample depth (cm) Sample depth (cm) relative to the ice bottom, in centimeters Date Time Date/time of sample (McMurdo time) Date Time Format: MM/DD/YYYY HH:mm Li+ (mg/L) Lithium concentration Na+ (mg/L) sodium concentration K+ (mg/L) potassium concentration Mg2+ (mg/L) magnesium concentration Ca2+ (mg/L) calcium concentration Cl- (mg/L) chlorine concentration F- (mg/L) Iron concentration N-NO3- (mg/L) Nitrogen-Nitrate concentration SO42-(mg/L) sulfate concentration DBF https://mcm.lternet.edu/sites/default/files/data/LakeHoareTracer_Dec_2012.csv dataset Between 20:30 and 22:30 on 17 December 2012, a concentrated LiCl solution (Li+ 49 g/L, Cl- 251 g/L) was injected into Andersen Creek at a rate of 500 mL/min during a 74 L/sec discharge event.  Water samples were collected from 5 stream locations and 15 ice boreholes at roughly 30 minute intervals over a 4 hour period, and analyzed for major cations and anions at McMurdo Station ion chromatography.  Metadata Access Constraints: none Metadata Use Constraints: none annually McMurdo Dry Valleys LTER http://mcmlter.org/ pointOfContact