<?xml version="1.0" encoding="ISO-8859-1"?>
<metadata>
 <idinfo>
  <citation>
   <citeinfo>
    <origin>Coulter, Richard</origin>
    <origin>Martin, Timothy</origin>
    <title>Micropulse Lidar (MPL): cloud base and top heights at Niamey, Niger; Mobile Facility </title>
    <pubdate>20130813</pubdate>
    <onlink>http://www.archive.arm.gov/discovery/#v/results/s/s::mpl </onlink>
    <onlink>http://dx.doi.org/10.5439/1025243 </onlink>
    <datasetid>armnimmpl </datasetid>
    <geoform>Observational Data</geoform>
   </citeinfo>
  </citation>
  <descript>
   <abstract>
The Micropulse Lidar (MPL) is a ground-based optical remote sensing system designed primarily to determine the altitude of clouds overhead. The physical principle is the same as for radar. Pulses of energy are transmitted into the atmosphere; the energy sc
attered back to the transceiver is collected and measured as a time-resolved signal. </abstract>
   <supplinf> mpl handbook is available at: http://www.arm.gov/publications/tech_reports/handbooks/mpl_handbook.pdf  </supplinf>
  </descript>
  <timeperd>
   <timeinfo>
    <rngdates>
     <begdate>20051125 </begdate>
     <enddate>20070107 </enddate>
    </rngdates>
   </timeinfo>
  </timeperd>
  <status>
   <progress>Completed </progress>
   <update>None </update>
  </status>
  <spdom>
   <bounding>
    <westbc>2.174 </westbc>
    <eastbc>2.174 </eastbc>
    <northbc>13.477 </northbc>
    <southbc>13.477 </southbc>
   </bounding>
  </spdom>
  <keywords>
   <theme>
    <themekt>science keywords</themekt>
    <themekey>Atmospheric Radiation Measurement</themekey>
    <themekey>DOE ARM</themekey>
    <themekey>ARM</themekey>
    <themekey>ARM Observed Data </themekey>
    <themekey>Cloud Properties </themekey>
    <themekey>Aerosols </themekey>
    <themekey>Cloud Properties </themekey>
    <themekey>macrophysical </themekey>
    <themekey>microphysical </themekey>
    <themekey>optical and radiative properties </themekey>
    <themekey>Preliminary cloud base height </themekey>
    <themekey>Total attenuated backscatter </themekey>
    <themekey>Cloud base height (for first cloud above height threshold) </themekey>
    <themekey>Cloud base height </themekey>
    <themekey>Backscattered radiation </themekey>
    <themekey>nimmplM1.a1 </themekey>
   </theme>
   <theme>
    <themekt>Instrument</themekt>
    <themekey>ARM Micropulse Lidar </themekey>
   </theme>
   <place>
    <placekt>Place Keywords</placekt>
    <placekey>nim.M1: Niamey, Niger; Mobile Facility ,Niamey, Niger </placekey>
   </place>
  </keywords>
  <ptcontac>
   <cntinfo>
    <cntperp>
     <cntper>Richard Coulter </cntper>
    </cntperp>
    <cntemail>rlcoulter@anl.gov </cntemail>
    <cntaddr>
     <addrtype>Mailing and Physical Address</addrtype>
     <city>Argonne </city>
     <state>IL </state>
     <postal>60439 </postal>
     <country>USA </country>
    </cntaddr>
    <cntvoice>N/A</cntvoice>
   </cntinfo>
  </ptcontac>
 </idinfo>
 <distinfo>
  <distrib>
   <cntinfo>
    <cntperp>
     <cntorg>Oak Ridge National Laboratory (ORNL), Oak Ridge, Tennessee, USA</cntorg>
     <cntper>ARM Archive User Services</cntper>
    </cntperp>
    <cntvoice>+1-865-241-4851</cntvoice>
    <cntemail>armarchive@ornl.gov</cntemail>
   </cntinfo>
  </distrib>
  <storder>
   <digform>
    <digtinfo>
     <formspec>url</formspec>
     <filedec>visualization</filedec>
     <formname></formname>
     <transize></transize>
    </digtinfo>
    <digtopt>
     <onlineopt>
      <computer>
       <networka>
        <networkr>http://www.archive.arm.gov/arm/Thumbnail2.jsp?siteCode=nim&amp;instClass=mpl </networkr>
       </networka>
       <accinstr>Public</accinstr>
      </computer>
     </onlineopt>
    </digtopt>
   </digform>
   <digform>
    <digtinfo>
     <formspec>image</formspec>
     <filedec>thumbnail</filedec>
     <formname></formname>
     <transize></transize>
    </digtinfo>
    <digtopt>
     <onlineopt>
      <computer>
       <networka>
        <networkr>http://www.archive.arm.gov/quicklooks/2006/nim/nimmplM1.a1/nimmplM1.a1.200609/.icons/nimmplM1.a1.20060905.000027.preliminary_cbh.png </networkr>
       </networka>
       <accinstr>Public</accinstr>
      </computer>
     </onlineopt>
    </digtopt>
   </digform>
  </storder>
  <resdesc>Atmospheric Radiation Measurement (ARM) Program Data Sets. 1993-Ongoing. Available at http://www.archive.arm.gov from the ARM Archive, Oak Ridge National Laboratory (ORNL), Oak Ridge, Tennessee, USA</resdesc>
 </distinfo>
 <metainfo>
  <metc>
   <cntinfo>
    <cntorgp>
     <cntorg>Atmospheric Radiation Measurement Program</cntorg>
     <cntper>ARM Archive User Services</cntper>
    </cntorgp>
    <cntaddr>
     <addrtype>Mailing and Physical Address</addrtype>
     <address>P.O. Box 2008, MS 6407</address>
     <city>Oak Ridge</city>
     <state>Tennessee</state>
     <postal>37831</postal>
     <country>USA</country>
    </cntaddr>
    <cntperp>
     <cntper>ARM Archive User Services</cntper>
    </cntperp>
    <cntvoice>865-241-4851</cntvoice>
    <cntemail>armarchive@ornl.gov</cntemail>
   </cntinfo>
  </metc>
  <metstdn>FGDC Content Standard for Digital Geospatial Metadata</metstdn>
 </metainfo>
</metadata>
