Screen, meteorological instrument

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OBJECT TYPE: snow crystal identification
DATE: 1990–2000
ARTIFACT NUMBER: 2013.0059.008

MANUFACTURER: Unknown
MODEL: Unknown
LOCATION: Unknown

More Information

General Information

Serial #: N/A
Part Number: 8
Total Parts: 10
AKA: N/A
Patents: N/A
General Description: A black aluminum screeen with white grating.

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 17.5 cm
Width: 9.5 cm
Height: N/A
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Meteorology
Category: Precipitation amount, rate & duration measurement
Sub-Category: N/A

Manufacturer

AKA: Unknown
Country: Unknown
State/Province: Unknown
City: Unknown

Context

Country: Canada
State/Province: British Columbia
Period: 1990's - ca. 2000
Canada: The use of the snow crystal identification screen permits a user to apply the current International Commission on Snow and Ice standard to identifying types of seasonal snow on the ground. This very basic snow science instrument speaks of Klein’s contribution to The International Classification for Snow. In the 1952 foreword to Technical Memorandum No. 31, by G. Seligman: "The seed of the Int.'l Snow Classification, which had long been germinating, took firm roots...in Oslo in 1948. On that occasion three separate papers on snow data were read and it became clear that a master system must be devised. Accordingly, a committee was set up by the Commission consisting of Dr. V.J. Schaefer, Mr. G.J. Klein, and Dr. M.R. de Quervain with instructions to produce a system that would be generally and internationally acceptable."
Function: Used in conjunction with a loup, the snow crystal screen, permits the use and application of the ICSI standard (International Commission on Snow and Ice) to identifying types of seasonal snow on the ground.
Technical: Made of aluminum anodized in black and graduated in metric, this snow crystal screen is divided in three quadrants – 1, 2, and 3, each to incrementally permit the user to identify snow grains of various sizes.
Area Notes: Unknown

Details

Markings: Scratched in back of screen:"A C S". Mfr's [front of screen]:"[scale, metric] 0,1,2,3,4,5,6,,7,8,9,10,11,12,13,14,15,16/3 grids".
Missing: Nothing missing.
Finish: A blackl aluminum screeen with white grating and a scale, graduated in metric
Decoration: None.

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Unknown Manufacturer, Screen, meteorological instrument, circa 1990–2000, Artifact no. 2013.0059, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/2013.0059.008/

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