Devin N. Castendyk 2015-07-24 tabular digitial data McMurdo Dry Valleys LTER McMurdo Dry Valleys LTER 10.6073/pasta/c47b7c82af71cb7aa56596c41efe4607 https://mcm.lternet.edu/content/lake-hoare-tracer-test-stream-chemistry 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 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 2012-12-16 2012-12-17 ground condition As needed 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 78m 78m meter [term:vocabulary] None <cntorg>McMurdo Dry Valleys LTER</cntorg> <onlink>http://mcmlter.org/</onlink> <span property="dc:title" content="McMurdo Dry Valleys LTER" class="rdf-meta element-hidden"></span> 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 Not Applicable Not Applicable Field and/or Lab Methods 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.  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.  unknown LakeHoareTracer_Dec_2012 Location ID Sampling Location ID code The data provider Sampling Location ID code Latitude Latitude where sample was taken, in decimal degrees The data provider degree Longitude Longitude where sample was taken, in decimal degrees The data provider degree Elevation (m) Elevation as reported by GPS The data provider meter Ice thickness (cm) Lake Ice thickness where sample was taken, in centimeters. Value is zero if no ice (a stream) The data provider centimeter Sample depth (cm) Sample depth (cm) relative to the ice bottom, in centimeters The data provider centimeter Date Time Date/time of sample (McMurdo time) The data provider calendar date/time MM/DD/YYYY HH:mm gregorian calendar Li+ (mg/L) Lithium concentration The data provider 0 50 milligramsPerLiter 0.001 Na+ (mg/L) sodium concentration The data provider 0 100 milligramsPerLiter 1 K+ (mg/L) potassium concentration The data provider 0 10 milligramsPerLiter 0.001 Mg2+ (mg/L) magnesium concentration The data provider 0 10 milligramsPerLiter 0.0001 Ca2+ (mg/L) calcium concentration The data provider 0 50 milligramsPerLiter 0.001 Cl- (mg/L) chlorine concentration The data provider 0 100 milligramsPerLiter 0.001 F- (mg/L) Iron concentration The data provider 0 2 milligramsPerLiter 0.001 N-NO3- (mg/L) Nitrogen-Nitrate concentration The data provider 0 2 milligramsPerLiter 0.0001 SO42-(mg/L) sulfate concentration The data provider 0 50 milligramsPerLiter 0.0001 McMurdo Dry Valleys LTER The data distributor shall not be liable for innacuracies in the content http 1 0 \r\n 11 column , https://mcm.lternet.edu/sites/default/files/data/LakeHoareTracer_Dec_2012.csv None 2015-07-24 2015-07-24 McMurdo Dry Valleys LTER http://mcmlter.org/ Biological Data Profile of the Content Standards for Digital Geospatial Metadata devised by the Federal Geographic Data Committee. Drupal Ecological information Management Systems, version D7, Biological Data Profile module