<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.25.641" 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>strmistp</shortName>
    <title>Isotope Ratios for Taylor Valley Streams</title>
    <creator>
      <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>
    </creator>
    <creator>
      <individualName>
        <givenName>W. Berry</givenName>
        <surName>Lyons</surName>
      </individualName>
      <address>
        <deliveryPoint>275 Mendenhall Lab</deliveryPoint>
        <city>Columbus</city>
        <administrativeArea>OH</administrativeArea>
        <postalCode>43210</postalCode>
        <country>US</country>
      </address>
      <phone phonetype="voice">(614) 688-3241</phone>
      <electronicMailAddress>lyons.142@osu.edu</electronicMailAddress>
      <onlineUrl>http://research.bpcrc.osu.edu/EnvironmentalGeochemistry/</onlineUrl>
      <userId directory="https://orcid.org">https://orcid.org/0000-0002-3143-7251</userId>
    </creator>
    <metadataProvider>
      <organizationName>McMurdo Dry Valleys LTER</organizationName>
      <onlineUrl>http://mcmlter.org/</onlineUrl>
    </metadataProvider>
    <pubDate>2007-09-11</pubDate>
    <language>English</language>
    <abstract>
      <section>
        <para>
          <literalLayout>As a part of the McMurdo Dry Valleys LTER program, isotope ratios have been&#160;determined for 166 samples of stream water in Taylor Valley, Antarctica. Hydrogen/deuterium&#160;isotope ratios are given for all samples, and for a subset, there are oxygen isotope ratios,&#160;and a deuterium-excess. Values are reported relative to VSMOW, +/- 1.0 per mil for hydrogen,&#160;and +/- 0.1 for oxygen.</literalLayout>
        </para>
      </section>
    </abstract>
    <keywordSet>
      <keyword>deuterium</keyword>
      <keyword>hydrogen isotope ratio</keyword>
      <keyword>isotope</keyword>
      <keyword>stream</keyword>
      <keyword>Taylor Valley</keyword>
      <keywordThesaurus>Station Keywords</keywordThesaurus>
    </keywordSet>
    <keywordSet>
      <keyword>inorganic nutrients</keyword>
      <keywordThesaurus>LTER Core Areas</keywordThesaurus>
    </keywordSet>
    <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/isotope-ratios-taylor-valley-streams</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>
      <geographicCoverage>
        <geographicDescription>House Stream at H2Description: USGS site 10; coordinates taken from 1996-97 GPS measurements at center of weirID: house_h2Provenance File Name :GPS96-97.DOC</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>162.741317749023</westBoundingCoordinate>
          <eastBoundingCoordinate>162.741317749023</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.642982482910</northBoundingCoordinate>
          <southBoundingCoordinate>-77.642982482910</southBoundingCoordinate>
          <boundingAltitudes>
            <altitudeMinimum>81</altitudeMinimum>
            <altitudeMaximum>81</altitudeMaximum>
            <altitudeUnits>meter</altitudeUnits>
          </boundingAltitudes>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>Santa Fe Stream at B2 ID: santafe_b2 USGS site 12; formerly N Taylor &amp; Hendy Stream</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>162.266662597656</westBoundingCoordinate>
          <eastBoundingCoordinate>162.266662597656</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.723052978516</northBoundingCoordinate>
          <southBoundingCoordinate>-77.723052978516</southBoundingCoordinate>
          <boundingAltitudes>
            <altitudeMinimum>0</altitudeMinimum>
            <altitudeMaximum>0</altitudeMaximum>
            <altitudeUnits>meter</altitudeUnits>
          </boundingAltitudes>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>USGS site 1; coordinates taken from 1996-97 GPS measurements at center of weir Parent Stream: Canada Stream Provenance : GPS96-97.DOC ID: canada_f1</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>163.054733300000</westBoundingCoordinate>
          <eastBoundingCoordinate>163.054733300000</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.613655000000</northBoundingCoordinate>
          <southBoundingCoordinate>-77.613655000000</southBoundingCoordinate>
          <boundingAltitudes>
            <altitudeMinimum>50</altitudeMinimum>
            <altitudeMaximum>50</altitudeMaximum>
            <altitudeUnits>meter</altitudeUnits>
          </boundingAltitudes>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>USGS site 4;coordinates taken from 1996-97GPS measurements at center of weirParent Stream: Aiken CreekProvenance : GPS96-97.DOCID: aiken_f5</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>163.271942100000</westBoundingCoordinate>
          <eastBoundingCoordinate>163.271942100000</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.602516000000</northBoundingCoordinate>
          <southBoundingCoordinate>-77.602516000000</southBoundingCoordinate>
          <boundingAltitudes>
            <altitudeMinimum>20</altitudeMinimum>
            <altitudeMaximum>20</altitudeMaximum>
            <altitudeUnits>meter</altitudeUnits>
          </boundingAltitudes>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>Lyons Creek at B4 ID: lyons_b4 USGS site 19</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>162.274993900000</westBoundingCoordinate>
          <eastBoundingCoordinate>162.274993900000</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.727776000000</northBoundingCoordinate>
          <southBoundingCoordinate>-77.727776000000</southBoundingCoordinate>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>Andrews Creek at mouth ID: andrws_mouth</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>163.044448852539</westBoundingCoordinate>
          <eastBoundingCoordinate>163.044448852539</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.620834350586</northBoundingCoordinate>
          <southBoundingCoordinate>-77.620834350586</southBoundingCoordinate>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>Bartlette Creek at mouth ID: bartlt_mouth</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>162.416671752930</westBoundingCoordinate>
          <eastBoundingCoordinate>162.416671752930</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.720832824707</northBoundingCoordinate>
          <southBoundingCoordinate>-77.720832824707</southBoundingCoordinate>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>Red River art Blood Falls ID: red_bfalls</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>162.268051147461</westBoundingCoordinate>
          <eastBoundingCoordinate>162.268051147461</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.723335266113</northBoundingCoordinate>
          <southBoundingCoordinate>-77.723335266113</southBoundingCoordinate>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>Bowles Creek at mouth ID: bowles_mouth</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>163.050003051758</westBoundingCoordinate>
          <eastBoundingCoordinate>163.050003051758</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.622222900391</northBoundingCoordinate>
          <southBoundingCoordinate>-77.622222900391</southBoundingCoordinate>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>USGS site 6; coordinates taken from 1996-97 GPS measurements at center of weir Parent Stream: Crescent Stream Provenance : GPS96-97.DOC ID: crescent_f8</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>163.184463500000</westBoundingCoordinate>
          <eastBoundingCoordinate>163.184463500000</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.619064000000</northBoundingCoordinate>
          <southBoundingCoordinate>-77.619064000000</southBoundingCoordinate>
          <boundingAltitudes>
            <altitudeMinimum>23</altitudeMinimum>
            <altitudeMaximum>23</altitudeMaximum>
            <altitudeUnits>meter</altitudeUnits>
          </boundingAltitudes>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>USGS site 7; coordinates taken from 1996-97 GPS measurements at center of weir Parent Stream: Delta Stream Provenance : GPS96-97.DOC ID: delta_f10</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>163.108444200000</westBoundingCoordinate>
          <eastBoundingCoordinate>163.108444200000</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.624619000000</northBoundingCoordinate>
          <southBoundingCoordinate>-77.624619000000</southBoundingCoordinate>
          <boundingAltitudes>
            <altitudeMinimum>23</altitudeMinimum>
            <altitudeMaximum>23</altitudeMaximum>
            <altitudeUnits>meter</altitudeUnits>
          </boundingAltitudes>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>Green Creek at F9Description: USGS site 8; coordinates taken from 1996-97 GPS measurements at center of weirID: green_f9&#160;Provenance&#160;File Name :GPS96-97.DOC</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>163.059753417969</westBoundingCoordinate>
          <eastBoundingCoordinate>163.059753417969</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.624099731445</northBoundingCoordinate>
          <southBoundingCoordinate>-77.624099731445</southBoundingCoordinate>
          <boundingAltitudes>
            <altitudeMinimum>25</altitudeMinimum>
            <altitudeMaximum>25</altitudeMaximum>
            <altitudeUnits>meter</altitudeUnits>
          </boundingAltitudes>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>USGS site 2; coordinates taken from 1996-97 GPS measurements at center of weir Parent Stream: Huey Creek Provenance : GPS96-97.DOC ID: huey_f2</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>163.127410900000</westBoundingCoordinate>
          <eastBoundingCoordinate>163.127410900000</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.604897000000</northBoundingCoordinate>
          <southBoundingCoordinate>-77.604897000000</southBoundingCoordinate>
          <boundingAltitudes>
            <altitudeMinimum>19</altitudeMinimum>
            <altitudeMaximum>19</altitudeMaximum>
            <altitudeUnits>meter</altitudeUnits>
          </boundingAltitudes>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>Harnish Creek at F7ID: harnish_f7USGS site 17</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>163.232772827148</westBoundingCoordinate>
          <eastBoundingCoordinate>163.232772827148</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.608329772949</northBoundingCoordinate>
          <southBoundingCoordinate>-77.608329772949</southBoundingCoordinate>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>USGS site 16 Parent Stream: Lawson Creek id: lawson_b3</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>162.269910000000</westBoundingCoordinate>
          <eastBoundingCoordinate>162.269910000000</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.721248000000</northBoundingCoordinate>
          <southBoundingCoordinate>-77.721248000000</southBoundingCoordinate>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>Lizotte Creek at mouth ID: lizotte_mouth</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>162.483337402344</westBoundingCoordinate>
          <eastBoundingCoordinate>162.483337402344</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.704170227051</northBoundingCoordinate>
          <southBoundingCoordinate>-77.704170227051</southBoundingCoordinate>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>USGS site 3; coordinates taken from 1996-97 GPS measurements at center of weir Parent Stream: Lost Seal Stream Provenance : GPS96-97.DOC ID: lostseal_f3</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>163.244400000000</westBoundingCoordinate>
          <eastBoundingCoordinate>163.244400000000</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.595268000000</northBoundingCoordinate>
          <southBoundingCoordinate>-77.595268000000</southBoundingCoordinate>
          <boundingAltitudes>
            <altitudeMinimum>25</altitudeMinimum>
            <altitudeMaximum>25</altitudeMaximum>
            <altitudeUnits>meter</altitudeUnits>
          </boundingAltitudes>
        </boundingCoordinates>
      </geographicCoverage>
      <temporalCoverage>
        <rangeOfDates>
          <beginDate>
            <calendarDate>1993-09-15</calendarDate>
          </beginDate>
          <endDate>
            <calendarDate>1995-04-01</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>The samples were obtained in 3 field seasons: 1993-94, 1994-95, and 1996-97.&#160;Water samples were taken from stream channels or other proglacial sources. Many are grab&#160;samples, taken for characterizing the general signal of a particular stream. Some are samples&#160;taken as a suite of samples along a stream path, with times noted, and distance along the&#160;stream noted. The samples were analyzed by Bruce Vaughn at the Stable Isotope Lab at INSTAAR&#160;(Institute of Arctic and Alpine Research), University of Colorado. For the samples obtained&#160;during the 1993-94 year, a duplicate set was analyzed by Tyler Coplen at the US Geological&#160;Survey, in Reston, Virginia. For the analysis of hydrogen isotopes, the uranium reduction&#160;method was used at INSTAAR, and the platinum-catalyst equilibration method was used at the&#160;USGS. For oxygen isotopes, the standard CO2/H2O equilibration method was used at both labs.&#160;There was agreement between the analyses done at the two labs.&#160;</literalLayout>
            </para>
          </section>
        </description>
      </methodStep>
    </methods>
    <dataTable>
      <entityName>strmistp</entityName>
      <physical>
        <objectName>strmistp.csv</objectName>
        <size>18976</size>
        <dataFormat>
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            <numHeaderLines>1</numHeaderLines>
            <numFooterLines>0</numFooterLines>
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            <attributeOrientation>column</attributeOrientation>
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              <fieldDelimiter>,</fieldDelimiter>
              <quoteCharacter>"</quoteCharacter>
            </simpleDelimited>
          </textFormat>
        </dataFormat>
        <distribution>
          <online>
            <url>https://mcm.lternet.edu/sites/default/files/strmistp.csv</url>
          </online>
        </distribution>
      </physical>
      <attributeList>
        <attribute>
          <attributeName>Sample#</attributeName>
          <attributeLabel>Sample#</attributeLabel>
          <attributeDefinition>Sample number</attributeDefinition>
          <storageType>string</storageType>
          <measurementScale>
            <nominal>
              <nonNumericDomain>
                <textDomain>
                  <definition>Sample number</definition>
                </textDomain>
              </nonNumericDomain>
            </nominal>
          </measurementScale>
        </attribute>
        <attribute>
          <attributeName>Date</attributeName>
          <attributeLabel>Date</attributeLabel>
          <attributeDefinition>Date and time the sample was obtained in the field</attributeDefinition>
          <storageType>date</storageType>
          <measurementScale>
            <dateTime>
              <formatString>mm/dd/yy hh:nn</formatString>
            </dateTime>
          </measurementScale>
          <missingValueCode>
            <code>Required entry</code>
            <codeExplanation>None given</codeExplanation>
          </missingValueCode>
        </attribute>
        <attribute>
          <attributeName>Sample Type</attributeName>
          <attributeLabel>Sample Type</attributeLabel>
          <attributeDefinition>area where sample was gathered (ice, fresh snow, snowpit, stream waters)</attributeDefinition>
          <storageType>string</storageType>
          <measurementScale>
            <nominal>
              <nonNumericDomain>
                <textDomain>
                  <definition>area where sample was gathered (ice, fresh snow, snowpit, stream waters)</definition>
                </textDomain>
              </nonNumericDomain>
            </nominal>
          </measurementScale>
        </attribute>
        <attribute>
          <attributeName>Location</attributeName>
          <attributeLabel>Location</attributeLabel>
          <attributeDefinition>Notes on sample site</attributeDefinition>
          <storageType>string</storageType>
          <measurementScale>
            <nominal>
              <nonNumericDomain>
                <textDomain>
                  <definition>Notes on sample site</definition>
                </textDomain>
              </nonNumericDomain>
            </nominal>
          </measurementScale>
        </attribute>
        <attribute>
          <attributeName>Nearest Stream Gauge</attributeName>
          <attributeLabel>Nearest Stream Gauge</attributeLabel>
          <attributeDefinition>Name of the closest stream gauge to the sample site</attributeDefinition>
          <storageType>string</storageType>
          <measurementScale>
            <nominal>
              <nonNumericDomain>
                <textDomain>
                  <definition>Name of the closest stream gauge to the sample site</definition>
                </textDomain>
              </nonNumericDomain>
            </nominal>
          </measurementScale>
        </attribute>
        <attribute>
          <attributeName>Deuterium Isotope ratio</attributeName>
          <attributeLabel>Deuterium Isotope ratio</attributeLabel>
          <attributeDefinition>Deuterium isotope ratio per mil relative to SMOW</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <customUnit>permil</customUnit>
              </unit>
              <numericDomain>
                <numberType>real</numberType>
              </numericDomain>
            </ratio>
          </measurementScale>
          <missingValueCode>
            <code>Null</code>
            <codeExplanation>None given</codeExplanation>
          </missingValueCode>
        </attribute>
        <attribute>
          <attributeName>Oxygen Isotope</attributeName>
          <attributeLabel>Oxygen Isotope</attributeLabel>
          <attributeDefinition>Oxygen isotope ratio relative to SMOW</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <customUnit>permil</customUnit>
              </unit>
              <numericDomain>
                <numberType>real</numberType>
              </numericDomain>
            </ratio>
          </measurementScale>
          <missingValueCode>
            <code>Null</code>
            <codeExplanation>None given</codeExplanation>
          </missingValueCode>
        </attribute>
        <attribute>
          <attributeName>Deuterium Excess</attributeName>
          <attributeLabel>Deuterium Excess</attributeLabel>
          <attributeDefinition>Deuterium isotope ratio minus 8 times relative to oxygen isotope ratio - Per mil relative to SMOW</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <customUnit>permil</customUnit>
              </unit>
              <numericDomain>
                <numberType>real</numberType>
              </numericDomain>
            </ratio>
          </measurementScale>
          <missingValueCode>
            <code>Null</code>
            <codeExplanation>None given</codeExplanation>
          </missingValueCode>
        </attribute>
        <attribute>
          <attributeName>File Name</attributeName>
          <attributeLabel>File Name</attributeLabel>
          <attributeDefinition>Raw data file containing information</attributeDefinition>
          <storageType>string</storageType>
          <measurementScale>
            <nominal>
              <nonNumericDomain>
                <textDomain>
                  <definition>Raw data file containing information</definition>
                </textDomain>
              </nonNumericDomain>
            </nominal>
          </measurementScale>
        </attribute>
      </attributeList>
    </dataTable>
  </dataset>
  <additionalMetadata>
    <metadata>
      <stmml:unitList xmlns:stmml="http://www.xml-cml.org/schema/stmml-1.1" xmlns="http://www.xml-cml.org/schema/stmml" xmlns:sch="http://www.ascc.net/xml/schematron" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xml-cml.org/schema/stmml-1.1 http://nis.lternet.edu/schemas/EML/eml-2.1.0/stmml.xsd">
        <stmml:unit id="permil" name="permil" abbreviation="o/oo" unitType="massPerMass" parentSI="gramsPerGram" multiplierToSI="0.001" constantToSI="0">
          <stmml:description>parts per thousand, relative to a standard. for isotopes. Isotope data uses LC-delta=(Rx/Rs-1)*1000</stmml:description>
        </stmml:unit>
      </stmml:unitList>
    </metadata>
  </additionalMetadata>
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