<?xml version='1.0' encoding='UTF-8'?>
<metadata xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <idinfo>
    <citation>
      <citeinfo>
        <origin>Bell, Meghan T</origin>
        <origin>Kennedy, Jeffrey R</origin>
        <pubdate>20250417</pubdate>
        <title>Repeat microgravity data from Rio Rancho, New Mexico, 2019-2023</title>
        <geoform>tabular digital data</geoform>
        <onlink>https://doi.org/10.5066/P14NKDR2</onlink>
        <lworkcit>
          <citeinfo>
            <origin>Jeffrey R. Kennedy</origin>
            <origin>Meghan T. Bell</origin>
            <origin>William G. Seelig</origin>
            <pubdate>20250625</pubdate>
            <title>Aquifer storage change and storage properties, Rio Rancho, New Mexico, 2019–23</title>
            <edition>20250616</edition>
            <geoform>tabular digital data</geoform>
            <serinfo>
              <sername>Scientific Investigations Report</sername>
              <issue>2025-5040</issue>
            </serinfo>
            <pubinfo>
              <pubplace>Reston, VA</pubplace>
              <publish>U.S. Geological Survey</publish>
            </pubinfo>
            <othercit>Kennedy, J.R., Bell, M.T., and Seelig, W.G., 2025, Aquifer storage change and storage properties, Rio Rancho, New Mexico, 2019–23: U.S. Geological Survey Scientific Investigations Report 2025–5040, 25 p., https://doi.org/10.3133/sir20255040.</othercit>
            <onlink>https://doi.org/10.3133/sir20255040</onlink>
          </citeinfo>
        </lworkcit>
      </citeinfo>
    </citation>
    <descript>
      <abstract>This dataset represents the network-adjusted results of relative- and absolute-gravity surveys performed from 2019 to 2023 in and near the City of Rio Rancho, New Mexico. Relative surveys were conducted using a Zero Length Spring, Inc. Burris relative-gravity meter. Absolute-gravity surveys were conducted using a Micro-g LaCoste, Inc. A-10 absolute-gravity meter. The effect of solid Earth tides and ocean loading were removed from the data prior to network adjustment. Non-linear instrument drift was removed by evaluating gravity change during repeated measurements at one or more base stations. Vertical gradients between the relative- and absolute-gravity meters were measured at each station where both types of measurement were collected to correlate the measurements of the two instruments. Vertical gradients were measured using a relative-gravity meter and tripod set to the height of the absolute-gravity meter. Relative-gravity differences and absolute-gravity data were combined using least-squares network adjustment, as implemented in the software GSadjust (https://code.usgs.gov/sgp/gsadjust). Data are provided for 20 stations collected over 11 discrete surveys.</abstract>
      <purpose>Gravity data were collected to evaluate aquifer-storage change and aquifer-storage properties. Using the horizontal infinite-slab approximation, gravity data can be converted to a thickness of free-standing water (insert reference). Because data are not corrected for soil-moisture variation, estimated storage changes include all storage change in the vadose zone.</purpose>
      <supplinf>Gravity values at all stations are reported at land-surface elevation. Observed absolute-gravity values are also available in the Southwest Gravity Program Absolute Gravity Database (https://doi.org/10.5066/P984HN6J).</supplinf>
    </descript>
    <timeperd>
      <timeinfo>
        <rngdates>
          <begdate>20190427</begdate>
          <enddate>20230109</enddate>
        </rngdates>
      </timeinfo>
      <current>observed</current>
    </timeperd>
    <status>
      <progress>Complete</progress>
      <update>None planned</update>
    </status>
    <spdom>
      <bounding>
        <westbc>-106.7406</westbc>
        <eastbc>-106.6013</eastbc>
        <northbc>35.3425</northbc>
        <southbc>35.2000</southbc>
      </bounding>
    </spdom>
    <keywords>
      <theme>
        <themekt>ISO 19115 Topic Category</themekt>
        <themekey>geoscientificInformation</themekey>
      </theme>
      <theme>
        <themekt>None</themekt>
        <themekey>Southwest Gravity Program</themekey>
        <themekey>New Mexico Water Science Center</themekey>
      </theme>
      <theme>
        <themekt>USGS Thesaurus</themekt>
        <themekey>gravitational field (earth)</themekey>
        <themekey>geophysics</themekey>
        <themekey>hydrogeology</themekey>
        <themekey>gravimeter measurement</themekey>
      </theme>
      <theme>
        <themekt>USGS Metadata Identifier</themekt>
        <themekey>USGS:65c17704d34ef4b119ca6757</themekey>
      </theme>
      <place>
        <placekt>None</placekt>
        <placekey>Rio Rancho</placekey>
        <placekey>Sandoval County</placekey>
        <placekey>New Mexico</placekey>
      </place>
    </keywords>
    <accconst>None.  Please see 'Distribution Info' for details.</accconst>
    <useconst>None.  Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations.</useconst>
    <ptcontac>
      <cntinfo>
        <cntperp>
          <cntper>Meghan T Bell</cntper>
          <cntorg>U.S. Geological Survey, ROCKY MOUNTAIN REGION</cntorg>
        </cntperp>
        <cntpos>Hydrologist</cntpos>
        <cntaddr>
          <addrtype>mailing address</addrtype>
          <address>Mail Stop MS 412, W 6th Ave Kipling St</address>
          <city>Lakewood</city>
          <state>CO</state>
          <postal>80225</postal>
          <country>US</country>
        </cntaddr>
        <cntvoice>303-236-5098</cntvoice>
        <cntemail>mtbell@usgs.gov</cntemail>
      </cntinfo>
    </ptcontac>
    <native>Data were processed using least-squares network adjustment, as implemented in the software GSadjust (https://code.usgs.gov/sgp/gsadjust).</native>
  </idinfo>
  <dataqual>
    <attracc>
      <attraccr>Attribute accuracy is evaluated from the least-squares network adjustment results.
Survey | Max. delta residual | Max. datum residual | Mean SD | Deltas | Deltas not used | Datums | Datums not used
2019-04-27   5.5   5.7   2.3   54   0  10   2
2019-08-17   3.5   5.0   2.1   47   0   9   2
2019-12-17   5.6   3.5   3.9   32   0   3   0
2020-08-13   7.7   9.4   2.6   50   0  10   2
2020-12-15  24.4   9.5   3.4   48   0   9   0
2021-04-12   6.0   4.7   2.7   50   0   8   1
2021-08-11   7.6   1.9   2.7   40   0   7   1
2021-12-06  10.5   6.0   3.5   40   0  13   0
2022-04-05   6.8   4.1   2.9   42   0   9   2
2022-08-23   4.7   6.5   2.8   54   0   7   0
2023-01-09   6.4   10.2  2.6   47   0   8   1
Relative gravimeter scale factor(s)
Survey | Meter | Scale factor | Scale factor S.D. (0 = specified S.F.)
2019-04-27  B-108   1.002617   0.000141
2019-08-17   B-44   0.999664   0.000135
2019-12-17   B-44   0.999385   0.000207
2020-08-13  B-108   0.999887   0.000157
2020-12-15  B-108   1.000380   0.000176
2021-04-12  B-108   0.999749   0.000187
2021-08-11  B-108   0.998890   0.000157
2021-12-06  B-108   0.999945   0.000273
2022-04-05  B-108   0.999846   0.000176
2022-08-23  B-108   0.998602   0.000193
2023-01-09  B-108   1.000004   0.000169</attraccr>
    </attracc>
    <logic>No formal logical accuracy tests were conducted.</logic>
    <complete>Dataset is considered complete for its intended purpose, as described in the Purpose section.</complete>
    <posacc>
      <horizpa>
        <horizpar>Station positions were identified using the National Geodetic Survey Online Positioning User Service (OPUS). Average horizontal uncertainty reported by OPUS is about 0.03 m.</horizpar>
      </horizpa>
      <vertacc>
        <vertaccr>Station positions were identified using the National Geodetic Survey Online Positioning User Service (OPUS). Average vertical uncertainty reported by OPUS is about 0.05 m.</vertaccr>
      </vertacc>
    </posacc>
    <lineage>
      <srcinfo>
        <srccite>
          <citeinfo>
            <origin>U.S. Geological Survey</origin>
            <pubdate>20231031</pubdate>
            <title>Southwest Gravity Program Absolute-Gravity Database (updated 2023-10-31)</title>
            <geoform>tabular digital data</geoform>
            <onlink>https://doi.org/10.5066/P984HN6J</onlink>
          </citeinfo>
        </srccite>
        <typesrc>Digital and/or Hardcopy</typesrc>
        <srctime>
          <timeinfo>
            <sngdate>
              <caldate>20231031</caldate>
            </sngdate>
          </timeinfo>
          <srccurr>publication date</srccurr>
        </srctime>
        <srccitea>SGP-AGDB</srccitea>
        <srccontr>Absolute gravity data used in the network adjustment are published in this database.</srccontr>
      </srcinfo>
      <procstep>
        <procdesc>Relative-gravity were corrected for solid Earth tides, ocean loading, and instrument drifts. Gravity differences between stations were calculated.</procdesc>
        <procdate>20230809</procdate>
      </procstep>
      <procstep>
        <procdesc>Absolute-gravity data were collected and reviewed. Absolute-gravity values were transferred to the measuring-height of the relative-gravity meter using a measured vertical gradient. One station (MW23) is not included in the relative-gravity network, and values reported for this station are standalone absolute-gravity measurements.</procdesc>
        <srcused>SGP-AGDB</srcused>
        <procdate>20230809</procdate>
      </procstep>
      <procstep>
        <procdesc>Relative-gravity differences were combined with absolute-gravity data using least-squares network adjustment. The GSadjust software package (https://doi.org/10.5066/P9YEIOU8) was used for processing.</procdesc>
        <procdate>20230809</procdate>
      </procstep>
    </lineage>
  </dataqual>
  <spref>
    <horizsys>
      <geograph>
        <latres>0.00001</latres>
        <longres>0.00001</longres>
        <geogunit>Decimal degrees</geogunit>
      </geograph>
      <geodetic>
        <horizdn>World Geodetic System 1984 (WGS 84)</horizdn>
        <ellips>WGS_1984</ellips>
        <semiaxis>6378137.0</semiaxis>
        <denflat>298.257223563</denflat>
      </geodetic>
    </horizsys>
    <vertdef>
      <altsys>
        <altdatum>North American Vertical Datum of 1988</altdatum>
        <altres>0.01</altres>
        <altunits>meters</altunits>
        <altenc>Explicit elevation coordinate included with horizontal coordinates</altenc>
      </altsys>
    </vertdef>
  </spref>
  <eainfo>
    <detailed>
      <enttyp>
        <enttypl>RioRancho_AdjustedGravity_2019-2023.csv</enttypl>
        <enttypd>Comma Separated Value (CSV) file containing data.</enttypd>
        <enttypds>Producer Defined</enttypds>
      </enttyp>
      <attr>
        <attrlabl>Station</attrlabl>
        <attrdef>Station name</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <udom>Station name</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Latitude</attrlabl>
        <attrdef>Latitude (World Geodetic System 1984; WGS84)</attrdef>
        <attrdefs>National Geodetic Survey Online Positioning User Service (OPUS)</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>35.20005</rdommin>
            <rdommax>35.34243</rdommax>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Longitude</attrlabl>
        <attrdef>Longitude (World Geodetic System 1984; WGS84)</attrdef>
        <attrdefs>National Geodetic Survey Online Positioning User Service (OPUS)</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>-106.74060</rdommin>
            <rdommax>-106.60127</rdommax>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Elevation</attrlabl>
        <attrdef>Elevation (North American Vertical Datum 1988; NAVD88)</attrdef>
        <attrdefs>National Geodetic Survey Online Positioning User Service (OPUS)</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>1553.54</rdommin>
            <rdommax>1761.87</rdommax>
            <attrunit>meters</attrunit>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2019-04-27_g</attrlabl>
        <attrdef>Network-adjusted gravity, 2019-04-27</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>979182209.0</rdommin>
            <rdommax>979232737.2</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2019-04-27_sd</attrlabl>
        <attrdef>Network-adjusted gravity, 2019-04-27, standard deviation</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.8</rdommin>
            <rdommax>4.7</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2019-08-17_g</attrlabl>
        <attrdef>Network-adjusted gravity, 2019-08-17</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>979182211.9</rdommin>
            <rdommax>979232739.0</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2019-08-17_sd</attrlabl>
        <attrdef>Network-adjusted gravity, 2019-08-17, standard deviation</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>1.3</rdommin>
            <rdommax>4.5</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2019-12-17_g</attrlabl>
        <attrdef>Network-adjusted gravity, 2019-12-17</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>979182220.1</rdommin>
            <rdommax>979232737.8</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2019-12-17_sd</attrlabl>
        <attrdef>Network-adjusted gravity, 2019-12-17, standard deviation</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>2.5</rdommin>
            <rdommax>7.8</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2020-08-13_g</attrlabl>
        <attrdef>Network-adjusted gravity, 2020-08-13</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>979182205.4</rdommin>
            <rdommax>979232754.3</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2020-08-13_sd</attrlabl>
        <attrdef>Network-adjusted gravity, 2020-08-13, standard deviation</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.4</rdommin>
            <rdommax>5.0</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2020-12-15_g</attrlabl>
        <attrdef>Network-adjusted gravity, 2020-12-15</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>979182203.8</rdommin>
            <rdommax>979232747.7</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2020-12-15_sd</attrlabl>
        <attrdef>Network-adjusted gravity, 2020-12-15, standard deviation</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>2.2</rdommin>
            <rdommax>6.7</rdommax>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2021-04-12_g</attrlabl>
        <attrdef>Network-adjusted gravity, 2021-04-12</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>979182207.9</rdommin>
            <rdommax>979232754.5</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2021-04-12_sd</attrlabl>
        <attrdef>Network-adjusted gravity, 2021-04-12, standard deviation</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>1.6</rdommin>
            <rdommax>6.3</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2021-08-11_g</attrlabl>
        <attrdef>Network-adjusted gravity, 2021-08-11</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>979182207.1</rdommin>
            <rdommax>979232733.7</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2021-08-11_sd</attrlabl>
        <attrdef>Network-adjusted gravity, 2021-08-11, standard deviation</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>1.8</rdommin>
            <rdommax>5.2</rdommax>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2021-12-06_g</attrlabl>
        <attrdef>Network-adjusted gravity, 2021-12-06</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>979182198.8</rdommin>
            <rdommax>979232748.8</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2021-12-06_sd</attrlabl>
        <attrdef>Network-adjusted gravity, 2021-12-06, standard deviation</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>1.6</rdommin>
            <rdommax>7.8</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2022-04-05_g</attrlabl>
        <attrdef>Network-adjusted gravity, 2022-04-05</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>979182205.8</rdommin>
            <rdommax>979232746.8</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2022-04-05_sd</attrlabl>
        <attrdef>Network-adjusted gravity, 2022-04-05, standard deviation</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>1.8</rdommin>
            <rdommax>5.4</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2022-08-23_g</attrlabl>
        <attrdef>Network-adjusted gravity, 2022-08-23</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>979182196.4</rdommin>
            <rdommax>979232701.7</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2022-08-23_sd</attrlabl>
        <attrdef>Network-adjusted gravity, 2022-08-23, standard deviation</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>1.7</rdommin>
            <rdommax>6.2</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2023-01-09_g</attrlabl>
        <attrdef>Network-adjusted gravity, 2023-01-09</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>979182196.4</rdommin>
            <rdommax>979232732.1</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>2023-01-09_sd</attrlabl>
        <attrdef>Network-adjusted gravity, 2023-01-09, standard deviation</attrdef>
        <attrdefs>Producer Defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>2.1</rdommin>
            <rdommax>5.9</rdommax>
            <attrunit>microgal</attrunit>
            <attrmres>0.1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
    </detailed>
  </eainfo>
  <distinfo>
    <distrib>
      <cntinfo>
        <cntorgp>
          <cntorg>U.S. Geological Survey</cntorg>
          <cntper>GS ScienceBase</cntper>
        </cntorgp>
        <cntaddr>
          <addrtype>mailing address</addrtype>
          <address>Denver Federal Center, Building 810, Mail Stop 302</address>
          <city>Denver</city>
          <state>CO</state>
          <postal>80225</postal>
          <country>United States</country>
        </cntaddr>
        <cntvoice>1-888-275-8747</cntvoice>
        <cntemail>sciencebase@usgs.gov</cntemail>
      </cntinfo>
    </distrib>
    <distliab>Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.</distliab>
    <stdorder>
      <digform>
        <digtinfo>
          <formname>Digital Data</formname>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://doi.org/10.5066/P14NKDR2</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <fees>None</fees>
    </stdorder>
  </distinfo>
  <metainfo>
    <metd>20250625</metd>
    <metc>
      <cntinfo>
        <cntperp>
          <cntper>Meghan T Bell</cntper>
          <cntorg>U.S. Geological Survey, ROCKY MOUNTAIN REGION</cntorg>
        </cntperp>
        <cntpos>Hydrologist</cntpos>
        <cntaddr>
          <addrtype>mailing address</addrtype>
          <address>Mail Stop MS 412, W 6th Ave Kipling St</address>
          <city>Lakewood</city>
          <state>CO</state>
          <postal>80225</postal>
          <country>US</country>
        </cntaddr>
        <cntvoice>303-236-5098</cntvoice>
        <cntemail>mtbell@usgs.gov</cntemail>
      </cntinfo>
    </metc>
    <metstdn>FGDC Content Standard for Digital Geospatial Metadata</metstdn>
    <metstdv>FGDC-STD-001-1998</metstdv>
  </metainfo>
</metadata>
