<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<metadata>
  <idinfo>
    <datsetid>ILSNP2</datsetid>
    <citation>
      <citeinfo>
        <origin>Blankenship, Donald D., Scott Kempf, Duncan Young</origin>
        <pubdate>20120731</pubdate>
        <title>IceBridge Sigma Space Photon Counting Lidar L2 Geolocated Nadir Photon Elevations</title>
        <pubinfo>
          <pubplace>Boulder, Colorado USA</pubplace>
          <publish>NSIDC DAAC: NASA DAAC at the National Snow and Ice Data Center</publish>
        </pubinfo>
        <onlink>http://nsidc.org/data/ilsnp2.html</onlink>
      </citeinfo>
    </citation>
    <descript>
      <abstract>The NASA IceBridge Sigma Space Photon Counting Lidar L2 Geolocated Nadir Photon Elevations (ILSNP2) data set contains geolocated surface elevation data captured over Antarctica using the Sigma Space photon counting lidar.  Along track and across track range vector location data are included. The data were collected by scientists working on the Investigating the Cryospheric Evolution of the Central Antarctic Plate (ICECAP) project, which is funded by the National Science Foundation (NSF) and the Natural Environment Research Council (NERC) with additional support from NASA Operation IceBridge. The data are ASCII text files and are available via FTP for periodic, ongoing campaigns from 29 November 2011 to the present.</abstract>
      <purpose>scientific research</purpose>
      <documnts>
        <userguid>
          <citeinfo>
            <origin>Blankenship, Donald D., Scott Kempf, Duncan Young</origin>
            <pubdate>20120731</pubdate>
            <title>IceBridge Sigma Space Photon Counting Lidar L2 Geolocated Nadir Photon Elevations</title>
            <pubinfo>
              <pubplace>Boulder, Colorado USA</pubplace>
              <publish>NSIDC DAAC: NASA DAAC at the National Snow and Ice Data Center</publish>
            </pubinfo>
            <onlink>http://nsidc.org/data/docs/daac/icebridge/ilsnp2/index.html</onlink>
          </citeinfo>
        </userguid>
      </documnts>
    </descript>
    <timeperd>
      <timeinfo>
        <rngdates>
          <begdate>20111129</begdate>
          <enddate>Unknown</enddate>
        </rngdates>
      </timeinfo>
      <current>publication date</current>
    </timeperd>
    <status>
      <progress>In work</progress>
      <update>Unknown</update>
    </status>
    <spdom>
      <bounding>
        <westbc>-180</westbc>
        <eastbc>180</eastbc>
        <northbc>-53</northbc>
        <southbc>-90</southbc>
      </bounding>
    </spdom>
    <keywords>
      <theme>
        <themekt>NASA Global Change Master Directory (GCMD) Science Keywords</themekt>
        <themekey>EARTH SCIENCE &gt; Cryosphere &gt; Glaciers/Ice Sheets &gt; Glacier Elevation/Ice Sheet Elevation</themekey>
        <themekey>EARTH SCIENCE &gt; Cryosphere &gt; Sea Ice &gt; Sea Ice Elevation</themekey>
      </theme>
      <theme>
        <themekt>NASA Global Change Master Directory (GCMD) Project Keywords</themekt>
        <themekey>OIB &gt; Operation Ice Bridge</themekey>
      </theme>
      <theme>
        <themekt>NASA Global Change Master Directory (GCMD) Instrument Keywords</themekt>
        <themekey>LIDAR &gt; Light Detection and Ranging</themekey>
      </theme>
      <theme>
        <themekt>NSIDC</themekt>
        <themekey>Sigma Space Lidar &gt; Sigma Space Photon Counting Imaging Lidar</themekey>
      </theme>
      <theme>
        <themekt>NASA Global Change Master Directory (GCMD) Platform Keywords</themekt>
        <themekey>AIRCRAFT</themekey>
        <themekey>BT-67 &gt; Basler BT-67</themekey>
      </theme>
      <theme>
        <themekt>ISO 19115 Topic Categories</themekt>
        <themekey>geoscientificinformation</themekey>
      </theme>
      <theme>
        <themekt>None</themekt>
        <themekey>IceBridge</themekey>
        <themekey>Lidar</themekey>
        <themekey>NASA</themekey>
        <themekey>NSIDC</themekey>
        <themekey>NSIDC DAAC</themekey>
        <themekey>Surface Elevation</themekey>
      </theme>
      <place>
        <placekt>NASA Global Change Master Directory (GCMD) Location Keywords</placekt>
        <placekey>Continent &gt; Antarctica</placekey>
      </place>
    </keywords>
    <thelayid>
      <numthlay>2</numthlay>
      <layrname>
        <theme>
          <themekt>NASA Global Change Master Directory (GCMD) Science Keywords</themekt>
          <themekey>EARTH SCIENCE &gt; Cryosphere &gt; Glaciers/Ice Sheets &gt; Glacier Elevation/Ice Sheet Elevation</themekey>
        </theme>
      </layrname>
      <layrname>
        <theme>
          <themekt>NASA Global Change Master Directory (GCMD) Science Keywords</themekt>
          <themekey>EARTH SCIENCE &gt; Cryosphere &gt; Sea Ice &gt; Sea Ice Elevation</themekey>
        </theme>
      </layrname>
    </thelayid>
    <accconst>None</accconst>
    <useconst>None</useconst>
    <ptcontac>
      <cntinfo>
        <cntperp>
          <cntper>NSIDC User Services</cntper>
          <cntorg>National Snow and Ice Data Center</cntorg>
        </cntperp>
        <cntaddr>
          <addrtype>mailing</addrtype>
          <address>CIRES, 449 UCB</address>
          <address>University of Colorado</address>
          <city>Boulder</city>
          <state>CO</state>
          <postal>80309-0449</postal>
          <country>USA</country>
        </cntaddr>
        <cntvoice>1 303 492-6199 x</cntvoice>
        <cntfax>1 303  492-2468 x</cntfax>
        <cntemail>nsidc@nsidc.org</cntemail>
      </cntinfo>
    </ptcontac>
  </idinfo>
  <distinfo>
    <distrib>
      <cntinfo>
        <cntorgp>
          <cntorg>National Snow and Ice Data Center</cntorg>
          <cntper>NSIDC User Services</cntper>
        </cntorgp>
        <cntaddr>
          <addrtype>mailing</addrtype>
          <address>National Snow and Ice Data Center</address>
          <address>CIRES, 449 UCB</address>
          <address>University of Colorado</address>
          <city>Boulder</city>
          <state>CO</state>
          <postal>80309-0449</postal>
          <country>USA</country>
        </cntaddr>
        <cntvoice>1 303 492-6199 </cntvoice>
        <cntfax>1 303  492-2468 </cntfax>
        <cntemail>nsidc@nsidc.org</cntemail>
      </cntinfo>
    </distrib>
    <resdesc>ILSNP2</resdesc>
    <distliab>NSIDC cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NSIDC makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.</distliab>
    <stdorder>
      <digform>
        <digtinfo>
          <formname>ASCII Text</formname>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>ftp://n4ftl01u.ecs.nasa.gov/SAN2/ICEBRIDGE_FTP/ILSNP2_SigmaSpaceXyNadir_v01/</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <fees>None</fees>
    </stdorder>
  </distinfo>
  <metainfo>
    <metd>20120830</metd>
    <metrd>20120830</metrd>
    <metc>
      <cntinfo>
        <cntperp>
          <cntper>NSIDC User Services</cntper>
          <cntorg>National Snow and Ice Data Center</cntorg>
        </cntperp>
        <cntaddr>
          <addrtype>mailing</addrtype>
          <address>National Snow and Ice Data Center</address>
          <address>CIRES, 449 UCB</address>
          <address>University of Colorado</address>
          <city>Boulder</city>
          <state>CO</state>
          <postal>80309-0449</postal>
          <country>USA</country>
        </cntaddr>
        <cntvoice>1 303 492-6199 </cntvoice>
        <cntfax>1 303  492-2468 </cntfax>
        <cntemail>nsidc@nsidc.org</cntemail>
      </cntinfo>
    </metc>
    <metstdn>FGDC Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata</metstdn>
    <metstdv>FGDC-STD-012-2002</metstdv>
  </metainfo>
</metadata>
