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<br />0183... <br /> <br />. <br /> <br /> <br />. <br /> <br />Analog versus Digital Imagery <br /> <br />Basic rC(luircmcnt ror monitoring is consistency <br />in matcrial signaturcs in thc imagc data <br />throughout the rh'cr corridor. <br /> <br />Thc morc consistcnt thc data: <br />more accurate identification, <br />more accurate change detection, and <br />morc rapid (cost clTcctivc) thc analysis. <br /> <br />l;USGS~ <br />---- <br /> <br />. <br /> <br />9 <br />