<metadata>
  <idinfo>
    <citation>
      <citeinfo>
        <origin>Carolyn DowlingW. Berry Lyons</origin>
        <pubdate>2014-11-04</pubdate>
        <title>Gas, Tritium, Stable Isotope, and Major Ion data for lake waters: 2005-2006 Antarctic Season</title>
        <!-- edition -->
        <geoform>tabular digitial data</geoform>
        <!-- serinfo -->
        <pubinfo>
          <pubplace>McMurdo Dry Valleys LTER</pubplace>
          <publish>McMurdo Dry Valleys LTER</publish>
        </pubinfo>
        <othercit>10.6073/pasta/b421fcc8837e96c5f18c3bd88872073c</othercit>
        <onlink>https://mcm.lternet.edu/content/gas-tritium-stable-isotope-and-major-ion-data-lake-waters-2005-2006-antarctic-season</onlink>
        <!--lworkcit -->
      </citeinfo>
      <descript>
        <abstract>Data of dissolved gas, tritium, stable isotopes, and major ion for Lake Vanda (Wright Valley), Lake Fryxell (Taylor Valley), Lake Hoare (Taylor Valley), and Lake Joyce (Pearce Valley): 2005-2006 Antarctic Season</abstract>
        <supplinf>This material is based upon work supported by the National Science Foundation under Grant No.0440686</supplinf>
      </descript>
      <timeperd>
        <timeinfo>
          <rngdates>
            <begdate>
              <caldate>2005-01-01</caldate>
            </begdate>
            <enddate>
              <caldate>2006-12-31</caldate>
            </enddate>
          </rngdates>
        </timeinfo>
        <current>ground condition</current>
      </timeperd>
      <status>
        <progress>This dataset was created March 27, 2009 by MCM-LTER information manager (Chris Gardner, Sue Welch) after email discussion with coPI Carolyn Dowling.&#160;On 2014, the metadata was enhanced for usability with help of the Drupal Ecological Information Management System (Inigo San Gil)&#160;in 2016, metadata was refined</progress>
        <update>As needed</update>
      </status>
      <spdom>
        <descgeog>Lake Vanda is located in the Wright Valley, adjacent to the Taylor Valley. It is fed primarily by the Onyx River, which has its origin at Lake Brownworth, and ultimately at the Lower Wright Glacier located ~27 km east of the lake. The lake has no outflow. Valley: Wright Distance to Sea : 47 Maximum Length (km): 8 Maximum Width (km): 2 Maximum Depth (m): 75 Surface Area (km^2): 5.2 Ice Thickness Average Surface (m): 2.8 - 4.2 Volume (m^3 * 10^6): 160</descgeog>
        <bounding>
          <westbc>161.691970825195</westbc>
          <eastbc>161.391906738281</eastbc>
          <northbc>-77.518882751465</northbc>
          <southbc>-77.542304992676</southbc>
          <boundingalt>
            <altmin>143m</altmin>
            <altmax>143m</altmax>
            <altunits>meter</altunits>
          </boundingalt>
        </bounding>
      </spdom>
      <spdom>
        <descgeog>Lake Hoare occupies a narrower portion of the Taylor Valley, dammed by the Canada Glacier. It would drain almost completely without this dam. There are a number of islands which may be related to an old terminal of Canada Glacier. The lake is fed primarily from direct runoff from the glacier, as well as meltwater streams. (Lake level rose ~1.5 m between 1972 and 1996). There are no surface outflows; the only known water loss is through ice ablation (evaporation, sublimation and physical scouring). Valley: Taylor Distance to Sea : 15 Maximum Length (km): 4.2 Maximum Width (km): 1 Maximum Depth (m): 34 Surface Area (km^2): 1.94 Ice Thickness Average Surface (m): 3.1 - 5.5 Volume (m^3 * 10^6): 17.5</descgeog>
        <bounding>
          <westbc>162.935836791992</westbc>
          <eastbc>162.784423828125</eastbc>
          <northbc>-77.623085021973</northbc>
          <southbc>-77.639259338379</southbc>
          <boundingalt>
            <altmin>73m</altmin>
            <altmax>73m</altmax>
            <altunits>meter</altunits>
          </boundingalt>
        </bounding>
      </spdom>
      <spdom>
        <descgeog>The Lake Fryxell basin is formed by a moraine depression in a wider portion of the Taylor Valley. It has a number of moraine islands and shallower areas, as well as several relatively well developed deltas. The lake is fed by at least 10 meltwater streams with a total drainage catchment of 230 km2. The lake is dammed to the southwest by the Canada Glacier and is topographically closed. It is perennially ice covered; during summer months, an ice-free moat generally forms around much of the lake margin. Lake levels have risen ~2 m between 1971 and 1996. There are no surface outflows; the only known water loss is through ice ablation (evaporation, sublimation and physical scouring). Valley: Taylor Distance to Sea : 9 Maximum Length (km): 5.8 Maximum Width (km): 2.1 Maximum Depth (m): 20 Surface Area (km^2): 7.08 Ice Thickness Average Surface (m): 3.3 - 4.5 Volume (m^3 * 10^6): 25.2</descgeog>
        <bounding>
          <westbc>163.259582519531</westbc>
          <eastbc>163.048782348633</eastbc>
          <northbc>-77.597076416016</northbc>
          <southbc>-77.622711181641</southbc>
          <boundingalt>
            <altmin>18m</altmin>
            <altmax>18m</altmax>
            <altunits>meter</altunits>
          </boundingalt>
        </bounding>
      </spdom>
      <spdom>
        <descgeog>Lake Joyce lies in the Pearse Valley against the Taylor Glacier.&#160;Valley: Pearse&#160;Distance to Sea : 44&#160;Maximum Length (km): 1&#160;Maximum Width (km): 1&#160;Maximum Depth (m): 35&#160;Surface Area (km^2): 0.83&#160;Ice Thickness Average Surface (m): 3.9 - 5.6&#160;Volume (m^3 * 10^6): 4.9</descgeog>
        <bounding>
          <westbc>161.662445068359</westbc>
          <eastbc>161.608886718750</eastbc>
          <northbc>-77.715972900391</northbc>
          <southbc>-77.726486206055</southbc>
          <boundingalt>
            <altmin>301m</altmin>
            <altmax>301m</altmax>
            <altunits>meter</altunits>
          </boundingalt>
        </bounding>
      </spdom>
      <keywords>
        <themekt>[term:vocabulary]</themekt>
      </keywords>
      <accconst>None</accconst>
      <ptcontact>
        <cntinfo>&lt;cntorg&gt;McMurdo Dry Valleys LTER&lt;/cntorg&gt; &lt;onlink&gt;http://mcmlter.org/&lt;/onlink&gt; &lt;span property="dc:title" content="McMurdo Dry Valleys LTER" class="rdf-meta element-hidden"&gt;&lt;/span&gt;</cntinfo>
      </ptcontact>
      <datacred>Name: Chris Gardner Role: data manager Name: Sue Welch Role: data manager Name: Inigo San Gil Role: data manager</datacred>
      <dataqual>
        <logic>Not Applicable</logic>
        <complete>Not Applicable</complete>
        <lineage>
          <method>
            <methtype>Field and/or Lab Methods</methtype>
            <methdesc>The dissolved gas and tritium samples were analyzed at the Rare Gas Lab at the University of Rochester, Rochester, NY &#160; The stable isotope samples were analyzed at INSTAAR, University of Colorado at Boulder . &#160; &#160; &#160; &#160; &#160; &#160;&#160; The major ions were analyzed at the MCM-LTER Laboratory at Crary Laboratory in McMurdo Station, Antarctica.</methdesc>
          </method>
          <procstep>
            <procdesc>The dissolved gas and tritium samples were analyzed at the Rare Gas Lab at the University of Rochester, Rochester, NY&#160;The stable isotope samples were analyzed at INSTAAR, University of Colorado at Boulder .&#160; &#160; &#160; &#160; &#160; &#160;&#160;The major ions were analyzed at the MCM-LTER Laboratory at Crary Laboratory in McMurdo Station, Antarctica.</procdesc>
            <procdate>unknown</procdate>
          </procstep>
        </lineage>
      </dataqual>
      <eainfo>
        <detailed>
          <enttyp>
            <enttypl>ANCILLARY_DOWLING_LAKES</enttypl>
          </enttyp>
          <attr>
            <attrlabl>DATASET_CODE</attrlabl>
            <attrdef>Table Identifier</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>Table Identifier</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Location Name</attrlabl>
            <attrdef>Name of lake where measurement was made</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>Name of lake where measurement was made</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Location Type</attrlabl>
            <attrdef>Sample type description and/or location</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>Sample type description and/or location</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>SAMPLE_ID</attrlabl>
            <attrdef>Sample identification code</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>Sample identification code</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Latitude</attrlabl>
            <attrdef>Sample Latitude</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>degree</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Longitude</attrlabl>
            <attrdef>Sample Longitude</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>degree</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Date_time</attrlabl>
            <attrdef>Date sample was collected</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <edom>
                <edomv>calendar date/time</edomv>
                <edomvd>mm/dd/yyyy</edomvd>
                <edomvds>gregorian calendar</edomvds>
              </edom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Depth</attrlabl>
            <attrdef>Stream, pond, or lake depth. In the case of ice-covered lakes, depth is in meters below the upper ice surface.</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>meter</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>He-4 (ucc/kg)</attrlabl>
            <attrdef>Total dissolved Helium-4 in micro cubic centimeters per kilogram</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>ucc/kg</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>He-4 Comments</attrlabl>
            <attrdef>He-4 Measurement Comments</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>He-4 Measurement Comments</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Ne (ucc/kg)</attrlabl>
            <attrdef>Total dissolved Ne micro cubic centimeters per kilogram</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>ucc/kg</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Ne Comments</attrlabl>
            <attrdef>Ne</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>Ne</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>N2 (ucc/kg)</attrlabl>
            <attrdef>Total dissolved N2 micro cubic centimeters per kilogram</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>ucc/kg</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>N2 Comments</attrlabl>
            <attrdef>N2 Comments</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>N2 Comments</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Ar (ucc/kg)</attrlabl>
            <attrdef>Total dissolved Ar micro cubic centimeters per kilogram</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>ucc/kg</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Ar Comments</attrlabl>
            <attrdef>Ar Comments</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>Ar Comments</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Methane (ucc/kg)</attrlabl>
            <attrdef>Total dissolved methane micro cubic centimeters per kilogram</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>ucc/kg</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Methane Comments</attrlabl>
            <attrdef>Methane Comments</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>Methane Comments</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>R/Ra (ucc/kg)</attrlabl>
            <attrdef>none</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>dimensionless</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>R/Ra Comments</attrlabl>
            <attrdef>R/Ra Comments</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>R/Ra Comments</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Tritium (TU)</attrlabl>
            <attrdef>Total tritium in Tritium Units</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>T.U.</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Tritium Comments</attrlabl>
            <attrdef>Tritium Comments</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>Tritium Comments</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>delta 18O (permil)</attrlabl>
            <attrdef>Delta Oxygen-18 in per mill</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>per mil.</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>d18O COMMENTS</attrlabl>
            <attrdef>d18O Comments</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>d18O Comments</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>delta D (permil)</attrlabl>
            <attrdef>Delta Deuterium in per milll</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>per mil.</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>dD COMMENTS</attrlabl>
            <attrdef>dD comments</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>dD comments</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>F (mg/L)</attrlabl>
            <attrdef>Total dissolved fluoride in milligrams per literl</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>microgramsPerLiter</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>F (mg/L) COMMENTS</attrlabl>
            <attrdef>F mg/L comments</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>F mg/L comments</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Cl (mg/L)</attrlabl>
            <attrdef>Total dissolved chloride in milligrams per liter</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>microgramsPerLiter</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Cl (mg/L) COMMENTS</attrlabl>
            <attrdef>Cl mg/l comments</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>Cl mg/l comments</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>NO3 (mg/L)</attrlabl>
            <attrdef>Total dissolved nitrate in milligrams per liter</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>microgramsPerLiter</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>NO3 (mg/L) COMMENTS</attrlabl>
            <attrdef>NO3 mg/l comments</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>NO3 mg/l comments</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>SO4 (mg/L)</attrlabl>
            <attrdef>Total dissolved sulfate in milligrams per liter</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>microgramsPerLiter</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>SO4 (mg/L) COMMENTS</attrlabl>
            <attrdef>SO4 (mg/L) COMMENTS</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>SO4 (mg/L) COMMENTS</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Li (mg/L)</attrlabl>
            <attrdef>Total dissolved lithium in milligrams per liter</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>microgramsPerLiter</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Li (mg/L) COMMENTS</attrlabl>
            <attrdef>Li (mg/L) COMMENTS</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>Li (mg/L) COMMENTS</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Na (mg/L)</attrlabl>
            <attrdef>Total dissolved sodium in milligrams per liter</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>microgramsPerLiter</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Na (mg/L) COMMENTS</attrlabl>
            <attrdef>Na (mg/L) COMMENTS</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>Na (mg/L) COMMENTS</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>K (mg/L)</attrlabl>
            <attrdef>Total dissolved potassium in milligrams per liter</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>microgramsPerLiter</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>K (mg/L) COMMENTS</attrlabl>
            <attrdef>K (mg/L) COMMENTS</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>K (mg/L) COMMENTS</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Mg (mg/L)</attrlabl>
            <attrdef>Total dissolved magnesium in milligrams per liter</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>microgramsPerLiter</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Mg (mg/L) COMMENTS</attrlabl>
            <attrdef>Mg (mg/L) COMMENTS</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>Mg (mg/L) COMMENTS</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Ca (mg/L)</attrlabl>
            <attrdef>Total dissolved calcium in milligrams per liter</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>microgramsPerLiter</attrunit>
              </rdom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>Ca (mg/L) COMMENTS</attrlabl>
            <attrdef>Ca (mg/L) COMMENTS</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <udom>Ca (mg/L) COMMENTS</udom>
            </attrdomv>
          </attr>
          <attr>
            <attrlabl>DEPTH MASL</attrlabl>
            <attrdef>Depth referred to the Sea level. Distance below Mean Average Sea wa ter level reference from which sample was drawn</attrdef>
            <attrdefs>The data provider</attrdefs>
            <attrdomv>
              <rdom>
                <attrunit>meter</attrunit>
                <attrmres>1</attrmres>
              </rdom>
            </attrdomv>
          </attr>
        </detailed>
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        <distrib>
          <cntinfo>
            <cntporgp>
              <cntorg>McMurdo Dry Valleys LTER</cntorg>
            </cntporgp>
          </cntinfo>
        </distrib>
        <!-- resdesc (object name) -->
        <distliab>The data distributor shall not be liable for innacuracies in the content</distliab>
        <stdorder>
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              <formvern>1</formvern>
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              <onlinopt>
                <computer>
                  <networka>
                    <networkr>https://mcm.lternet.edu/sites/default/files/ANCILLARY_DOWLING_LAKES.csv</networkr>
                  </networka>
                </computer>
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      <metainfo>
        <metd>2014-11-04</metd>
        <metrd>2014-11-04</metrd>
        <metc>
          <cntinfo>
            <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>
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        <metstdn>Biological Data Profile of the Content Standards for Digital Geospatial Metadata devised by the Federal Geographic Data Committee.</metstdn>
        <metstdv>Drupal Ecological information Management Systems, version D7, Biological Data Profile module</metstdv>
      </metainfo>
    </citation>
  </idinfo>
</metadata>