General Information

Serial #

B1232153

Part Number

1

Total Parts

3

AKA

N/A

Patents

N/A

General Description

synthetic and styrofoam casing/ metal arm, wire and parts/ synthetic wire reel and parts

Dimensions

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

Length

41.1 cm

Width

7.1 cm

Height

N/A

Thickness

10.8 cm

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Meteorology

Category

Upper wind speed & direction measurement

Sub-Category

N/A

Manufacturer

AKA

Vaisala

Country

Unknown

State/Province

Unknown

City

Unknown

Context

Country

Canada

State/Province

Unknown

Period

after 2006

Canada

An example of the family of radiosondes commonly used by the Meteorological Service of Canada at its 31 upper air observing stations starting in 2006. A piece of meteorological equipment from a large collection of meteorological instruments used by the Meteorological Service of Canada (previously Atmospheric Environment Service) and acquired by the CSTM since 1967. MSC is the government agency responsible for collecting and disseminating meteorological data and forecasts in Canada. It was founded in 1871 in Toronto where it is still headquartered. The MSC was originally on the University of Toronto downtown campus but moved to Downsview in 1971 on land owned by UofT. The headquarters houses laboratories, research facilities and calibration and instrument maintenance facilities (now largely contracted out).

Function

A device lifted by balloon into the upper atmosphere to measure temperature, humidity, and air pressure and transmit the data to earth. Wind speed and direction were determined by means of the Loran radio navigation system.

Technical

The RS92 replaced the RS80, which was heavier but physically larger. The RS92-KL uses Loran navigation for wind computation. The nine weather stations in the extreme north use the SGP version of the RS92, which uses GPS for wind determination. The sensor package that measures pressure in both radiosondes uses a silicon based chip called a Barocap. They have two humidity sensors that are alternately heated to remove moisture. The temperature sensor is small to reject solar radiation loading. The Meteorological Service of Canada uses Vaisala Digicora II ground equipment with the RS92s. This equipment are able to handle Loran, VLF, and GPS radiosondses.

Area Notes

Unknown

Details

Markings

Raised lettering on casing top reads '[logo] VAISALA/ www.vaisala.com'/ typed lettering on white paper label on side reads 'RS92-KL/ B1232153'/ black lettering on plastic label reads '[Environment Canada logo]/ HARMLESS WEATHER INSTRUMENT/ INSTRUMENT MÉTÉOROLOGIQUE à/ USAGE ECOLOGIQUE/ INFO: 1-800-726-2181'

Missing

Appears complete

Finish

White and grey casing/ white reel/ grey coated and plated metal arm/ grey wire

Decoration

Black and white drawing of person and waste bin