<?xml version="1.0" encoding="ISO-8859-1"?><gmi:MI_Instrument xmlns:gmi="http://www.isotc211.org/2005/gmi" uuid="8293FAD4B8DA75F2E040AC8C5AB4576F"><gmi:identifier><gmd:MD_Identifier xmlns:gmd="http://www.isotc211.org/2005/gmd"><gmd:code><gco:CharacterString xmlns:gco="http://www.isotc211.org/2005/gco">AMR &gt; Advanced Microwave Radiometer</gco:CharacterString></gmd:code></gmd:MD_Identifier></gmi:identifier><gmi:type><gco:CharacterString xmlns:gco="http://www.isotc211.org/2005/gco">radiometer</gco:CharacterString></gmi:type><gmi:description><gco:CharacterString xmlns:gco="http://www.isotc211.org/2005/gco">Instrument Type: radiometer, Operational Mode: , Collection Type:
              microwave, Other Information: AMR acquires measurements via three separate frequency
              channels to determine the path delay of the altimeter&apos;s radar caused by atmospheric
              water vapor. This instrument measures radiation from Earth&apos;s surface at three
              frequencies (18, 21 and 37 GHz). Measurements acquired at each frequency are combined
              to determine atmospheric water vapor and liquid water content. Once the water content
              is known, we can determine the correction to be applied for radar signal path
              delays.</gco:CharacterString></gmi:description></gmi:MI_Instrument>