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US Climate Reference Network
US Historical Climatology Network - Modernization

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doc document Instrument Monitoring

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pdf document Station Installation/Maintenance

doc document Functional Requirements

Data Notes

June 15, 2004 Calculated precipitation algorithm's maximum 15 minute precipitation amount changed from 25mm to 40mm
xls document Impact spreadsheet

June 10, 2004 Calculated temperature algorithm corrected to associate the fan speeds with the correct temp sensors
xls document Impact spreadsheet


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