<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.29.609" system="knb">
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  <dataset>
    <shortName>afdmrlc.dat</shortName>
    <title>Algae Ash-Free Dry Mass in Reactivated Channel</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>
    <metadataProvider>
      <organizationName>McMurdo Dry Valleys LTER</organizationName>
      <onlineUrl>http://mcmlter.org/</onlineUrl>
    </metadataProvider>
    <pubDate>2014-01-01</pubDate>
    <language>English</language>
    <abstract>
      <section>
        <para>
          <literalLayout>As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, water was diverted to a relict stream channel in order to reactivate the streamflow. The purpose of this experiment was to quantify the time scales of response to the arrival of water after many years of dessication. This table contains data showing the ash-free dry mass represented by algal type (brown-colored, red-colored, orange-colored, or green-colored, filamentous, sand, rock or moss) and incubation type (light, dark, or none) for the Relict Channel in the Fryxell basin.</literalLayout>
        </para>
      </section>
    </abstract>
    <keywordSet>
      <keyword>algae</keyword>
      <keyword>mass</keyword>
      <keyword>Moss</keyword>
      <keyword>stream</keyword>
      <keywordThesaurus>Station Keywords</keywordThesaurus>
    </keywordSet>
    <keywordSet>
      <keyword>population dynamics</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/algae-ash-free-dry-mass-reactivated-channel</url>
      </online>
    </distribution>
    <coverage>
      <geographicCoverage>
        <geographicDescription>Parent Stream: Harnish Creek Tributary, also known as Relict Channel</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>163.294113159180</westBoundingCoordinate>
          <eastBoundingCoordinate>163.294113159180</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.633735656738</northBoundingCoordinate>
          <southBoundingCoordinate>-77.633735656738</southBoundingCoordinate>
          <boundingAltitudes>
            <altitudeMinimum>130</altitudeMinimum>
            <altitudeMaximum>130</altitudeMaximum>
            <altitudeUnits>meter</altitudeUnits>
          </boundingAltitudes>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>"Coordinates are same as those for RC1H, but samples taken from stream rather than hyporheic zone." Parent Stream: Harnish Creek Tributary, also known as Relict Channel</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>163.285720825195</westBoundingCoordinate>
          <eastBoundingCoordinate>163.285720825195</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.631942749023</northBoundingCoordinate>
          <southBoundingCoordinate>-77.631942749023</southBoundingCoordinate>
          <boundingAltitudes>
            <altitudeMinimum>110</altitudeMinimum>
            <altitudeMaximum>110</altitudeMaximum>
            <altitudeUnits>meter</altitudeUnits>
          </boundingAltitudes>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>"Coordinates are same as those for RC1, but samples taken from hyporheic zone rather than stream." Parent Stream: Harnish Creek Tributary, also known as Relict Channel</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>163.285720825195</westBoundingCoordinate>
          <eastBoundingCoordinate>163.285720825195</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.631942749023</northBoundingCoordinate>
          <southBoundingCoordinate>-77.631942749023</southBoundingCoordinate>
          <boundingAltitudes>
            <altitudeMinimum>110</altitudeMinimum>
            <altitudeMaximum>110</altitudeMaximum>
            <altitudeUnits>meter</altitudeUnits>
          </boundingAltitudes>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>Parent Stream: Harnish Creek Tributary, also known as Relict Channel</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>163.281509399414</westBoundingCoordinate>
          <eastBoundingCoordinate>163.281509399414</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.630149841309</northBoundingCoordinate>
          <southBoundingCoordinate>-77.630149841309</southBoundingCoordinate>
          <boundingAltitudes>
            <altitudeMinimum>98</altitudeMinimum>
            <altitudeMaximum>98</altitudeMaximum>
            <altitudeUnits>meter</altitudeUnits>
          </boundingAltitudes>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>Parent Stream: Harnish Creek Tributary, also known as Relict Channel</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>163.279418945313</westBoundingCoordinate>
          <eastBoundingCoordinate>163.279418945313</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.628135681152</northBoundingCoordinate>
          <southBoundingCoordinate>-77.628135681152</southBoundingCoordinate>
          <boundingAltitudes>
            <altitudeMinimum>93</altitudeMinimum>
            <altitudeMaximum>93</altitudeMaximum>
            <altitudeUnits>meter</altitudeUnits>
          </boundingAltitudes>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>Parent Stream: Harnish Creek Tributary, also known as Relict Channel</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>163.279418945313</westBoundingCoordinate>
          <eastBoundingCoordinate>163.279418945313</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.629028320313</northBoundingCoordinate>
          <southBoundingCoordinate>-77.629028320313</southBoundingCoordinate>
          <boundingAltitudes>
            <altitudeMinimum>96</altitudeMinimum>
            <altitudeMaximum>96</altitudeMaximum>
            <altitudeUnits>meter</altitudeUnits>
          </boundingAltitudes>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>Parent Stream: Harnish Creek Tributary, also known as Relict Channel</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>163.268905639648</westBoundingCoordinate>
          <eastBoundingCoordinate>163.268905639648</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.626571655273</northBoundingCoordinate>
          <southBoundingCoordinate>-77.626571655273</southBoundingCoordinate>
          <boundingAltitudes>
            <altitudeMinimum>85</altitudeMinimum>
            <altitudeMaximum>85</altitudeMaximum>
            <altitudeUnits>meter</altitudeUnits>
          </boundingAltitudes>
        </boundingCoordinates>
      </geographicCoverage>
      <geographicCoverage>
        <geographicDescription>Parent Stream: Harnish Creek Tributary, also known as Relict Channel</geographicDescription>
        <boundingCoordinates>
          <westBoundingCoordinate>163.271011352539</westBoundingCoordinate>
          <eastBoundingCoordinate>163.271011352539</eastBoundingCoordinate>
          <northBoundingCoordinate>-77.624549865723</northBoundingCoordinate>
          <southBoundingCoordinate>-77.624549865723</southBoundingCoordinate>
          <boundingAltitudes>
            <altitudeMinimum>75</altitudeMinimum>
            <altitudeMaximum>75</altitudeMaximum>
            <altitudeUnits>meter</altitudeUnits>
          </boundingAltitudes>
        </boundingCoordinates>
      </geographicCoverage>
      <temporalCoverage>
        <rangeOfDates>
          <beginDate>
            <calendarDate>1995-01-23</calendarDate>
          </beginDate>
          <endDate>
            <calendarDate>1997-01-15</calendarDate>
          </endDate>
        </rangeOfDates>
      </temporalCoverage>
    </coverage>
    <maintenance>
      <description>
        <para>
          <literalLayout>Data from this table was initially included in the raw data files specified under the variable for 'file name'. These are Microsoft Excel version 5.0 files and can be found in the McMurdo LTER data manager's home directory on INSTAAR's Unix system. Once submitted to INSTAAR, the data manager combined all of the Relict Channel files that included information for "ash-free dry mass", and removed any variables that had no direct influence on it. The resulting file is represented in the "afdmrlc.dat" file used on the web page. In October 1998, the data manager reviewed the values provided for location, and found that there was a lack of consistency among Relict Channel datasets that should contain corresponding location values. It was desirable to match locations from this dataset with those represented in the sampling points (eg. latitude, longitude, elevation, location name). Dev Niyogi and Mike Gooseff provided assistance in translating location values, as well as in specifying coordinates for the Relict Channel sample points. As a result, the following records had the original location name replaced with a location code: Relict channel site #1 RC1 Relic channel site #2 RC2 Relict channel site #2 RC2 Relic channel site #3 RC3 Relict channel site #3 RC3 Relic channel site #4 RC4 Relict channel site #4 RC4 Relict channel site #5 RC5 Relict channel site #6 RC6 Relict channel site #7 RC7.</literalLayout>
        </para>
      </description>
    </maintenance>
    <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>Within each transect, algal mats were visually identified as either orange, red, black, or green. Not all types of algal mats were found within every t ransect. A maximum of five algal samples of each color were collected from each transect using a #13 cork borer (diameter = 17 mm, area = 227 square mm). Algal samples were preserved in 10% formalin for laboratory identifications. A maximum of five additional algal samples of each color were collected for ash-free dry mass analyses. Moss samples were also collected using the same method as for algae samples. Samples for ash-free dry mass measurements were filtered through GF/C glass fiber filters and frozen. The samples were dried (100 degrees C) for 24 hours, weighed, ashed (450 degrees C) for 4 hours, rehydrated with water, dried for 24 hours, and reweighed.</literalLayout>
            </para>
          </section>
        </description>
      </methodStep>
    </methods>
    <dataTable>
      <entityName>afdmrlc</entityName>
      <physical>
        <objectName>afdmrlc.csv</objectName>
        <size>29409</size>
        <dataFormat>
          <textFormat>
            <numHeaderLines>1</numHeaderLines>
            <numFooterLines>0</numFooterLines>
            <recordDelimiter>\n</recordDelimiter>
            <attributeOrientation>column</attributeOrientation>
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              <fieldDelimiter>,</fieldDelimiter>
              <quoteCharacter>"</quoteCharacter>
            </simpleDelimited>
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        <distribution>
          <online>
            <url>https://mcm.lternet.edu/sites/default/files/afdmrlc.csv</url>
          </online>
        </distribution>
      </physical>
      <attributeList>
        <attribute>
          <attributeName>Dataset Code</attributeName>
          <attributeLabel>Dataset Code</attributeLabel>
          <attributeDefinition>A code to Id the data entity</attributeDefinition>
          <storageType>string</storageType>
          <measurementScale>
            <nominal>
              <nonNumericDomain>
                <textDomain>
                  <definition>A code to Id the data entity</definition>
                </textDomain>
              </nonNumericDomain>
            </nominal>
          </measurementScale>
        </attribute>
        <attribute>
          <attributeName>LOCATION_CODE</attributeName>
          <attributeLabel>Location Code</attributeLabel>
          <attributeDefinition>Abbreviated Location</attributeDefinition>
          <storageType>string</storageType>
          <measurementScale>
            <nominal>
              <nonNumericDomain>
                <textDomain>
                  <definition>Abbreviated Location</definition>
                </textDomain>
              </nonNumericDomain>
            </nominal>
          </measurementScale>
        </attribute>
        <attribute>
          <attributeName>DATE_TIME</attributeName>
          <attributeLabel>Date</attributeLabel>
          <attributeDefinition>Date of sample</attributeDefinition>
          <storageType>date</storageType>
          <measurementScale>
            <dateTime>
              <formatString>mm/dd/YYYY</formatString>
            </dateTime>
          </measurementScale>
        </attribute>
        <attribute>
          <attributeName>Algae Type</attributeName>
          <attributeLabel>Algae Type</attributeLabel>
          <attributeDefinition>Type of algae speciesis associated with (red, brown, green or orange)</attributeDefinition>
          <storageType>string</storageType>
          <measurementScale>
            <nominal>
              <nonNumericDomain>
                <textDomain>
                  <definition>Type of algae speciesis associated with (red, brown, green or orange)</definition>
                </textDomain>
              </nonNumericDomain>
            </nominal>
          </measurementScale>
        </attribute>
        <attribute>
          <attributeName>Replicate #</attributeName>
          <attributeLabel>Replicate #</attributeLabel>
          <attributeDefinition>Replication number of sample</attributeDefinition>
          <storageType>string</storageType>
          <measurementScale>
            <nominal>
              <nonNumericDomain>
                <textDomain>
                  <definition>Replication number of sample</definition>
                </textDomain>
              </nonNumericDomain>
            </nominal>
          </measurementScale>
        </attribute>
        <attribute>
          <attributeName>Incubation Type</attributeName>
          <attributeLabel>Incubation Type</attributeLabel>
          <attributeDefinition>Environment where incubation occurred(light, dark or not applicable)</attributeDefinition>
          <storageType>string</storageType>
          <measurementScale>
            <nominal>
              <nonNumericDomain>
                <textDomain>
                  <definition>Environment where incubation occurred(light, dark or not applicable)</definition>
                </textDomain>
              </nonNumericDomain>
            </nominal>
          </measurementScale>
        </attribute>
        <attribute>
          <attributeName>Incubation Time (h)</attributeName>
          <attributeLabel>Incubation Time (h)</attributeLabel>
          <attributeDefinition>Number of hoursspent incubating</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <standardUnit>hour</standardUnit>
              </unit>
              <numericDomain>
                <numberType>real</numberType>
              </numericDomain>
            </ratio>
          </measurementScale>
          <missingValueCode>
            <code>Null</code>
            <codeExplanation>None given</codeExplanation>
          </missingValueCode>
        </attribute>
        <attribute>
          <attributeName>Area sampled (cm2)</attributeName>
          <attributeLabel>Area sampled (cm2)</attributeLabel>
          <attributeDefinition>Area from which sample was drawn</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <standardUnit>squareCentimeters</standardUnit>
              </unit>
              <numericDomain>
                <numberType>real</numberType>
              </numericDomain>
            </ratio>
          </measurementScale>
        </attribute>
        <attribute>
          <attributeName>AFDM (mg/cm2)</attributeName>
          <attributeLabel>AFDM (mg/cm2)</attributeLabel>
          <attributeDefinition>Ash-free dry mass</attributeDefinition>
          <measurementScale>
            <ratio>
              <unit>
                <customUnit>mg/cm2</customUnit>
              </unit>
              <numericDomain>
                <numberType>real</numberType>
              </numericDomain>
            </ratio>
          </measurementScale>
        </attribute>
        <attribute>
          <attributeName>Comments</attributeName>
          <attributeLabel>Comments</attributeLabel>
          <attributeDefinition>Comments regarding ash-free dry mass</attributeDefinition>
          <storageType>string</storageType>
          <measurementScale>
            <nominal>
              <nonNumericDomain>
                <textDomain>
                  <definition>Comments regarding ash-free dry mass</definition>
                </textDomain>
              </nonNumericDomain>
            </nominal>
          </measurementScale>
        </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>
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        </attribute>
      </attributeList>
    </dataTable>
  </dataset>
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