Map

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OBJECT TYPE
weather/machine plotted/hand analysed
DATE
1980
ARTIFACT NUMBER
2009.0134.003
MANUFACTURER
EC Atmospheric Environment Service
MODEL
Ontario Weather Centre
LOCATION
Canada

More Information


General Information

Serial #
N/A
Part Number
3
Total Parts
4
AKA
N/A
Patents
N/A
General Description
Paper

Dimensions

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

Length
60.3 cm
Width
48.9 cm
Height
N/A
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Meteorology
Category
Archives
Sub-Category
N/A

Manufacturer

AKA
Environment CA
Country
Canada
State/Province
Unknown
City
Unknown

Context

Country
Canada
State/Province
Unknown
Period
1980
Canada
An example of a weather map used at the Ontario Weather Centre. An item 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 hand-coloured map showing observations made of surface weather conditions in Canada.
Technical
Since weather is three dimensional, there are both surface and upper-air weather maps. This map shows observations for surface weather. Surface weather maps are plotted on a constant altitude surface so that air-pressure readings taken at stations at different elevations can be compared. Often, meteorologists shows air-pressure readings at sea level. The maps show low and high pressure centres through isobars. They also show fronts and weather observing station information, such as temperature, dewpoint temperature, wind speed, and direction on wind barbs and air pressure. See also wind scale 2009.0129. Machine plotted maps replaced hand-plotted maps in major forecast centres before the 1980s. Hand analysed maps, like this one, were replaced by machine analysed ones not long after.
Area Notes
Unknown

Details

Markings
Black lettering reading 'SURFACE ANALYSIS/ APRIL 30 1980 1200Z/ ONTARIO WEATHER CENTRE/ O.W.C. COMPUTER CENTRE/ ATMOSPHERIC ENVIRONMENT SERVICE'
Missing
Appears complete
Finish
White with black printed map of Canada and hand inscribed weather notations
Decoration
N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

EC Atmospheric Environment Service, Map, 1980, Artifact no. 2009.0134, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2009.0134.003/

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