Photo Record
Images
Metadata
Title |
Anemohygrograph Instrument for Fire Research |
Catalog Number |
2014.030.137 |
Object Name |
Print, Photographic |
Description |
Anemohygrograph Instrument for Fire Research 1930 >> From a file labeled "Gisborne File" >> The Missoula Fire Lab local name for the instrument is "Robot" The anemohygrograph, was developed by Harry Gisborne and Matt Dunlap (of the Forest Service's Forest Products Laboratory in Madison, Wisconsin) around 1930. The anemohygrograph measured moisture levels in wood fuels, wind speed, and relative humidity in forest duff (small organic debris). The parallel wooden dowels protruding from the unit were of a standardized size and weight, which increased or decreased depending upon how much moisture (from precipitation or humidity) they absorbed. Gisborne designed the dowels to represent similarly sized sticks common in the adjacent forests and correlated moisture content in the dowels to fire danger. Unfortunately, the anemohygrograph required a full-time technician to keep it functioning accurately and cost more than $300 per unit, so had only a short research life. 1999.015.23 Museum repository has one Anemohygrograph Black & White Photo / Scanned |
Photo Number |
M22287F |
Place |
Missoula, MT |
Date |
1930 |
Year Range from |
1930 |
Year Range to |
1930 |
Photographer |
Forest Service |
Print size |
7.25 X 8.5" |
People |
Dunlap, Matt Gisborne, Harry T. |
Subjects |
Fire Research |
Search Terms |
Fire-Weather Fire-Research |
Catalog date |
2014-09-12 |
Collection |
Wellner, Chuck |
Relation |
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