Height of the instrument (HI): Difference between revisions

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[[Category:Glossary]]  [[Category:Turf]] <br> 1. In surveying, the sum of the benchmark elevation and a rod reading at the benchmark, from which all subsequent readings are subtracted to establish elevations (The benchmark elevation may be established from older surveys, or may be arbitrarily assigned to provide a consistent basis for comparison.)<br> <br>
[[Category:Glossary]]  [[Category:Turf]]
 
1. In surveying, the sum of the benchmark elevation and a rod reading at the benchmark, from which all subsequent readings are subtracted to establish elevations. The benchmark elevation may be established from older surveys, or may be arbitrarily assigned to provide a consistent basis for comparison.<br>
 
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Revision as of 15:32, 24 January 2006


1. In surveying, the sum of the benchmark elevation and a rod reading at the benchmark, from which all subsequent readings are subtracted to establish elevations. The benchmark elevation may be established from older surveys, or may be arbitrarily assigned to provide a consistent basis for comparison.