<eml:eml xmlns:eml="eml://ecoinformatics.org/eml-2.1.0" xmlns:stmml="http://www.xml-cml.org/schema/stmml-1.1" xmlns:ds="eml://ecoinformatics.org/dataset-2.1.0" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="eml://ecoinformatics.org/eml-2.1.0 http://nis.lternet.edu/schemas/EML/eml-2.1.0/eml.xsd" packageId="knb-lter-mcm.300.559" system="knb">
  <access scope="document" order="allowFirst" authSystem="knb">
    <allow>
      <principal>uid=MCM,o=EDI,dc=edirepository,dc=org</principal>
      <permission>all</permission>
    </allow>
    <allow>
      <principal>public</principal>
      <permission>read</permission>
    </allow>
  </access>
  <dataset>
    <shortName>LakeHoareTracer_Dec_2012</shortName>
    <title>Lake Hoare Tracer Test Stream Chemistry</title>
    <creator>
      <individualName>
        <givenName>Devin</givenName>
        <surName>Castendyk</surName>
      </individualName>
      <electronicMailAddress>castendn@gmail.com</electronicMailAddress>
      <userId directory="https://orcid.org">https://orcid.org/0000-0002-8150-5566</userId>
    </creator>
    <metadataProvider>
      <organizationName>McMurdo Dry Valleys LTER</organizationName>
      <onlineUrl>http://mcmlter.org/</onlineUrl>
    </metadataProvider>
    <associatedParty>
      <individualName>
        <givenName>Chris</givenName>
        <surName>Jaros</surName>
      </individualName>
      <electronicMailAddress>chris.jaros@gmail.com</electronicMailAddress>
      <role>field crew</role>
    </associatedParty>
    <associatedParty>
      <individualName>
        <givenName>Michael</givenName>
        <surName>Gooseff</surName>
      </individualName>
      <electronicMailAddress>michael.gooseff@colorado.edu</electronicMailAddress>
      <onlineUrl>http://goosefflab.weebly.com</onlineUrl>
      <userId directory="https://orcid.org">https://orcid.org/0000-0003-4322-8315</userId>
      <role>associated researcher</role>
    </associatedParty>
    <associatedParty>
      <individualName>
        <givenName>Tyler</givenName>
        <surName>Kohler</surName>
      </individualName>
      <electronicMailAddress>tyler.j.kohler@gmail.com</electronicMailAddress>
      <userId directory="https://orcid.org">https://orcid.org/0000-0001-5137-4844</userId>
      <role>field crew</role>
    </associatedParty>
    <associatedParty>
      <individualName>
        <givenName>Diane</givenName>
        <surName>McKnight</surName>
      </individualName>
      <electronicMailAddress>diane.mcknight@colorado.edu</electronicMailAddress>
      <userId directory="https://orcid.org">https://orcid.org/0000-0002-4171-1533</userId>
      <role>associated researcher</role>
    </associatedParty>
    <associatedParty>
      <individualName>
        <givenName>Adam</givenName>
        <surName>Wlostowski</surName>
      </individualName>
      <electronicMailAddress>wlostowskiadam@gmail.com</electronicMailAddress>
      <role>field crew</role>
    </associatedParty>
    <associatedParty>
      <individualName>
        <givenName>Kathleen</givenName>
        <surName>Welch</surName>
      </individualName>
      <electronicMailAddress>kathleen.welch@colorado.edu</electronicMailAddress>
      <userId directory="https://orcid.org">https://orcid.org/0000-0003-1028-3086</userId>
      <role>lab crew</role>
    </associatedParty>
    <pubDate>2013-10-23</pubDate>
    <language>English</language>
    <abstract>
      <section>
        <para>
          <literalLayout>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. &#160;The purpose of this study was to determine the fate of stream water below lake ice. &#160;Injection began at 20:30 hours and continued for two hours. &#160;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. &#160;Samples were analyzed for major cations and major anions using an ion chromotograph at McMurdo Station. &#160;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</literalLayout>
        </para>
      </section>
    </abstract>
    <keywordSet>
      <keyword>anions</keyword>
      <keyword>cations</keyword>
      <keyword>chemistry</keyword>
      <keyword>inorganic</keyword>
      <keyword>solute concentrations</keyword>
      <keyword>stream</keyword>
      <keyword>Tracer test</keyword>
      <keywordThesaurus>Station Keywords</keywordThesaurus>
    </keywordSet>
    <additionalInfo>
      <para>
        <literalLayout>S, I, T Prefix indicates: ice free stream sample (S); inlet connecting stream moat to shoreline moat (I); and ice borehole transect (T) &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160;&#160; s, d &#160; &#160;Suffix denoting: shallow water sample collected directly below lake ice (s); deep water sample collected 1 m below lake ice (d) &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160;&#160; ND. Concentration below detection limit of ion chromatograph. &#160; Sample depths are relative to the ice surface</literalLayout>
      </para>
    </additionalInfo>
    <intellectualRights>
      <section>
        <title>Data Policies</title>
        <para>
          <literalLayout>This data package is released under the Creative Commons Attribution 4.0 International License (CC BY 4.0; http://creativecommons.org/licenses/by/4.0/), which allows consumers (hereinafter referred to as “Data Users”) to freely reuse, redistribute, transform, or build on this work (even commercially) so long as appropriate credit is provided. Accordingly, Data Users are required to properly cite this data package in any publications or in the metadata of any derived products that result from its use (in whole or in part). A recommended citation is provided on the summary metadata page associated with this data package in the McMurdo Dry Valleys LTER Data Catalog (https://mcmlter.org/data), and a generic citation may be found on the summary metadata page in the repository where this data package was obtained. When these data contribute significantly to the contents of a publication, Data Users must also acknowledge that data were provided by the NSF-supported McMurdo Dry Valleys Long Term Ecological Research program (OPP-2224760). This data package has been released in the spirit of open scientific collaboration. Hence, Data Users are strongly encouraged to consider consultation, collaboration, and/or co-authorship (as appropriate) with the data package creator(s). Data Users should be aware these data may be actively used by others for ongoing research; thus, coordination may be necessary to prevent duplicate publication. Data Users should also recognize that misinterpretation of data may occur if they are used outside the context of the original study. Hence, Data Users are urged to contact the data package creator(s) if they have any questions regarding methodology or results. While substantial efforts are made to ensure the accuracy of this data package (with all its components), complete accuracy cannot be guaranteed. Periodic updates to this data package may occur, and it is the responsibility of Data Users to check for new versions. This data package is made available “as is” and comes with no warranty of accuracy or fitness for use. The creator(s) of this data package and the repository where these data were obtained shall not be liable for any damages resulting from misinterpretation, use, or misuse of these data. Finally, as a professional courtesy, we kindly request Data Users notify the primary contact referenced in the metadata when these data are used in the production of any derivative work or publication. Notification should include an explanation of how the data were used, along with a digital copy of the derived product(s). Thank you.</literalLayout>
        </para>
      </section>
    </intellectualRights>
    <distribution>
      <online>
        <url function="information">https://mcm.lternet.edu/content/lake-hoare-tracer-test-stream-chemistry</url>
      </online>
    </distribution>
    <coverage>
      <geographicCoverage>
        <geographicDescription>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</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>162.906356800000</westBoundingCoordinate>
          <eastBoundingCoordinate>162.906356800000</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.622772000000</northBoundingCoordinate>
          <southBoundingCoordinate>-77.622772000000</southBoundingCoordinate>
          <boundingAltitudes>
            <altitudeMinimum>78</altitudeMinimum>
            <altitudeMaximum>78</altitudeMaximum>
            <altitudeUnits>meter</altitudeUnits>
          </boundingAltitudes>
        </boundingCoordinates>
      </geographicCoverage>
      <temporalCoverage>
        <rangeOfDates>
          <beginDate>
            <calendarDate>2012-12-16</calendarDate>
          </beginDate>
          <endDate>
            <calendarDate>2012-12-17</calendarDate>
          </endDate>
        </rangeOfDates>
      </temporalCoverage>
    </coverage>
    <contact>
      <organizationName>McMurdo Dry Valleys LTER</organizationName>
      <onlineUrl>http://mcmlter.org/</onlineUrl>
    </contact>
    <publisher>
      <organizationName>McMurdo Dry Valleys LTER</organizationName>
      <onlineUrl>http://mcmlter.org/</onlineUrl>
    </publisher>
    <pubPlace>McMurdo Dry Valleys LTER</pubPlace>
    <methods>
      <methodStep>
        <description>
          <section>
            <para>
              <literalLayout>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. &#160;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.&#160;</literalLayout>
            </para>
          </section>
        </description>
      </methodStep>
    </methods>
    <dataTable>
      <entityName>LakeHoareTracer_Dec_2012</entityName>
      <physical>
        <objectName>LakeHoareTracer_Dec_2012.csv</objectName>
        <size>19051</size>
        <dataFormat>
          <textFormat>
            <numHeaderLines>11</numHeaderLines>
            <numFooterLines>0</numFooterLines>
            <recordDelimiter>\r\n</recordDelimiter>
            <attributeOrientation>column</attributeOrientation>
            <simpleDelimited>
              <fieldDelimiter>,</fieldDelimiter>
              <quoteCharacter>"</quoteCharacter>
            </simpleDelimited>
          </textFormat>
        </dataFormat>
        <distribution>
          <online>
            <url>https://mcm.lternet.edu/sites/default/files/data/LakeHoareTracer_Dec_2012.csv</url>
          </online>
        </distribution>
      </physical>
      <attributeList>
        <attribute>
          <attributeName>Location ID</attributeName>
          <attributeLabel>Location ID</attributeLabel>
          <attributeDefinition>Sampling Location ID code</attributeDefinition>
          <storageType>string</storageType>
          <measurementScale>
            <nominal>
              <nonNumericDomain>
                <textDomain>
                  <definition>Sampling Location ID code</definition>
                </textDomain>
              </nonNumericDomain>
            </nominal>
          </measurementScale>
        </attribute>
        <attribute>
          <attributeName>Latitude</attributeName>
          <attributeLabel>Latitude</attributeLabel>
          <attributeDefinition>Latitude where sample was taken, in decimal degrees</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <standardUnit>degree</standardUnit>
              </unit>
              <numericDomain>
                <numberType>real</numberType>
              </numericDomain>
            </ratio>
          </measurementScale>
        </attribute>
        <attribute>
          <attributeName>Longitude</attributeName>
          <attributeLabel>Longitude</attributeLabel>
          <attributeDefinition>Longitude where sample was taken, in decimal degrees</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <standardUnit>degree</standardUnit>
              </unit>
              <numericDomain>
                <numberType>real</numberType>
              </numericDomain>
            </ratio>
          </measurementScale>
        </attribute>
        <attribute>
          <attributeName>Elevation (m)</attributeName>
          <attributeLabel>Elevation (m)</attributeLabel>
          <attributeDefinition>Elevation as reported by GPS</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <standardUnit>meter</standardUnit>
              </unit>
              <numericDomain>
                <numberType>real</numberType>
              </numericDomain>
            </ratio>
          </measurementScale>
        </attribute>
        <attribute>
          <attributeName>Ice thickness (cm)</attributeName>
          <attributeLabel>Ice thickness (cm)</attributeLabel>
          <attributeDefinition>Lake Ice thickness where sample was taken, in centimeters. Value is zero if no ice (a stream)</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <standardUnit>centimeter</standardUnit>
              </unit>
              <numericDomain>
                <numberType>real</numberType>
              </numericDomain>
            </ratio>
          </measurementScale>
        </attribute>
        <attribute>
          <attributeName>Sample depth (cm)</attributeName>
          <attributeLabel>Sample depth (cm)</attributeLabel>
          <attributeDefinition>Sample depth (cm) relative to the ice bottom, in centimeters</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <standardUnit>centimeter</standardUnit>
              </unit>
              <numericDomain>
                <numberType>real</numberType>
              </numericDomain>
            </ratio>
          </measurementScale>
        </attribute>
        <attribute>
          <attributeName>Date Time</attributeName>
          <attributeLabel>Date Time</attributeLabel>
          <attributeDefinition>Date/time of sample (McMurdo time)</attributeDefinition>
          <storageType>date</storageType>
          <measurementScale>
            <dateTime>
              <formatString>MM/DD/YYYY HH:mm</formatString>
            </dateTime>
          </measurementScale>
          <missingValueCode>
            <code>Required entry</code>
            <codeExplanation>None given</codeExplanation>
          </missingValueCode>
        </attribute>
        <attribute>
          <attributeName>Li+ (mg/L)</attributeName>
          <attributeLabel>Li+ (mg/L)</attributeLabel>
          <attributeDefinition>Lithium concentration</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <standardUnit>milligramsPerLiter</standardUnit>
              </unit>
              <precision>0.001</precision>
              <numericDomain>
                <numberType>real</numberType>
                <bounds>
                  <minimum exclusive="false">0</minimum>
                  <maximum exclusive="false">50</maximum>
                </bounds>
              </numericDomain>
            </ratio>
          </measurementScale>
          <missingValueCode>
            <code>ND</code>
            <codeExplanation>Concentration below detection limit of ion chromatograph</codeExplanation>
          </missingValueCode>
        </attribute>
        <attribute>
          <attributeName>Na+ (mg/L)</attributeName>
          <attributeLabel>Na+ (mg/L)</attributeLabel>
          <attributeDefinition>sodium concentration</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <standardUnit>milligramsPerLiter</standardUnit>
              </unit>
              <precision>1</precision>
              <numericDomain>
                <numberType>real</numberType>
                <bounds>
                  <minimum exclusive="false">0</minimum>
                  <maximum exclusive="false">100</maximum>
                </bounds>
              </numericDomain>
            </ratio>
          </measurementScale>
          <missingValueCode>
            <code>ND</code>
            <codeExplanation>Concentration below detection limit of ion chromatograph</codeExplanation>
          </missingValueCode>
        </attribute>
        <attribute>
          <attributeName>K+ (mg/L)</attributeName>
          <attributeLabel>K+ (mg/L)</attributeLabel>
          <attributeDefinition>potassium concentration</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <standardUnit>milligramsPerLiter</standardUnit>
              </unit>
              <precision>0.001</precision>
              <numericDomain>
                <numberType>real</numberType>
                <bounds>
                  <minimum exclusive="false">0</minimum>
                  <maximum exclusive="false">10</maximum>
                </bounds>
              </numericDomain>
            </ratio>
          </measurementScale>
          <missingValueCode>
            <code>ND</code>
            <codeExplanation>Concentration below detection limit of ion chromatograph</codeExplanation>
          </missingValueCode>
        </attribute>
        <attribute>
          <attributeName>Mg2+ (mg/L)</attributeName>
          <attributeLabel>Mg2+ (mg/L)</attributeLabel>
          <attributeDefinition>magnesium concentration</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <standardUnit>milligramsPerLiter</standardUnit>
              </unit>
              <precision>0.0001</precision>
              <numericDomain>
                <numberType>real</numberType>
                <bounds>
                  <minimum exclusive="false">0</minimum>
                  <maximum exclusive="false">10</maximum>
                </bounds>
              </numericDomain>
            </ratio>
          </measurementScale>
          <missingValueCode>
            <code>ND</code>
            <codeExplanation>Concentration below detection limit of ion chromatograph</codeExplanation>
          </missingValueCode>
        </attribute>
        <attribute>
          <attributeName>Ca2+ (mg/L)</attributeName>
          <attributeLabel>Ca2+ (mg/L)</attributeLabel>
          <attributeDefinition>calcium concentration</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <standardUnit>milligramsPerLiter</standardUnit>
              </unit>
              <precision>0.001</precision>
              <numericDomain>
                <numberType>real</numberType>
                <bounds>
                  <minimum exclusive="false">0</minimum>
                  <maximum exclusive="false">50</maximum>
                </bounds>
              </numericDomain>
            </ratio>
          </measurementScale>
          <missingValueCode>
            <code>ND</code>
            <codeExplanation>Concentration below detection limit of ion chromatograph</codeExplanation>
          </missingValueCode>
        </attribute>
        <attribute>
          <attributeName>Cl- (mg/L)</attributeName>
          <attributeLabel>Cl- (mg/L)</attributeLabel>
          <attributeDefinition>chlorine concentration</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <standardUnit>milligramsPerLiter</standardUnit>
              </unit>
              <precision>0.001</precision>
              <numericDomain>
                <numberType>real</numberType>
                <bounds>
                  <minimum exclusive="false">0</minimum>
                  <maximum exclusive="false">100</maximum>
                </bounds>
              </numericDomain>
            </ratio>
          </measurementScale>
          <missingValueCode>
            <code>ND</code>
            <codeExplanation>Concentration below detection limit of ion chromatograph</codeExplanation>
          </missingValueCode>
        </attribute>
        <attribute>
          <attributeName>F- (mg/L)</attributeName>
          <attributeLabel>F- (mg/L)</attributeLabel>
          <attributeDefinition>Iron concentration</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <standardUnit>milligramsPerLiter</standardUnit>
              </unit>
              <precision>0.001</precision>
              <numericDomain>
                <numberType>real</numberType>
                <bounds>
                  <minimum exclusive="false">0</minimum>
                  <maximum exclusive="false">2</maximum>
                </bounds>
              </numericDomain>
            </ratio>
          </measurementScale>
          <missingValueCode>
            <code>ND</code>
            <codeExplanation>Concentration below detection limit of ion chromatograph</codeExplanation>
          </missingValueCode>
        </attribute>
        <attribute>
          <attributeName>N-NO3- (mg/L)</attributeName>
          <attributeLabel>N-NO3- (mg/L)</attributeLabel>
          <attributeDefinition>Nitrogen-Nitrate concentration</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <standardUnit>milligramsPerLiter</standardUnit>
              </unit>
              <precision>0.0001</precision>
              <numericDomain>
                <numberType>real</numberType>
                <bounds>
                  <minimum exclusive="false">0</minimum>
                  <maximum exclusive="false">2</maximum>
                </bounds>
              </numericDomain>
            </ratio>
          </measurementScale>
          <missingValueCode>
            <code>ND</code>
            <codeExplanation>Concentration below detection limit of ion chromatograph</codeExplanation>
          </missingValueCode>
        </attribute>
        <attribute>
          <attributeName>SO42-(mg/L)</attributeName>
          <attributeLabel>SO42-(mg/L)</attributeLabel>
          <attributeDefinition>sulfate concentration</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <standardUnit>milligramsPerLiter</standardUnit>
              </unit>
              <precision>0.0001</precision>
              <numericDomain>
                <numberType>real</numberType>
                <bounds>
                  <minimum exclusive="false">0</minimum>
                  <maximum exclusive="false">50</maximum>
                </bounds>
              </numericDomain>
            </ratio>
          </measurementScale>
          <missingValueCode>
            <code>ND</code>
            <codeExplanation>Concentration below detection limit of ion chromatograph</codeExplanation>
          </missingValueCode>
        </attribute>
      </attributeList>
    </dataTable>
  </dataset>
</eml:eml>