General Information

Serial #

N/A

Part Number

2

Total Parts

2

AKA

spring [.2]

Patents

N/A

General Description

A grey metal spring; a brass screw cap and a metal scale [0-100grams].

Dimensions

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

Length

19.0 cm

Width

2.0 cm

Height

3.5 cm

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

NRC/DBR

Country

Canada

State/Province

Unknown

City

Unknown

Context

Country

Canada

State/Province

Unknown

Period

1940's - ca. 2000's

Canada

Referenced in Dick Bourgeois-Doyle’s book, George J. Klein: The Great Inventor ~ Chapter 6: The Seeds of Snow, the objective Klein’s 1948 NRC research paper Canadian Survey of Physical Characteristics of Snow Covers: … to carry out periodic measurements of the physical characteristics of the snow-cover at a number of observation stations in order to obtain useful data applicable to a wide variety of winter problems, especially to those in which the condition of the snow is an important factor. The survey was intended to provide a basis for future studies of the fundamental properties of the various forms of fallen snow¹ .[see Supp. Info. for the complete Canadian Context].

Function

The snow hardness gauge (1.1.4) can be used horizontally at each layer in a snow pit, or vertically to measure the hardness of a thin layer of snow at the surface. The methods and detailed instructions and technical function for using the Klein snow instruments as well as diagrams and photos can be found in *Method of Measuring the Significant Characteristics of a Snow-Cover (1946) and Canadian Survey of Physical Characteristics of Snow Covers (1950).*

Technical

Lightweight, compact, durable and rust-proof instruments adapted for the use in the field. The NRC- type spring hardness gauge (1.1.4) is used to obtain snow hardness readings. Used horizontally against the wall of a snow trench or snow pit; a reading is obtained by slowly pressing the gauge squarely against the snow. The gauge may also be used vertically to measure the hardness of a thing layer of surface snow.

Area Notes

Unknown

Details

Markings

Mfr's:"[scale] 0 to 100 in increments of 10."

Missing

Two sized discs attached at the end are missing.

Finish

A grey metal spring attached to a brass screw cap and the end of the spring is looped through a hole in the metal scale [0-100grams]; the top of the scale passes through the screw cap.

Decoration

None.