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===== Population =====
[[models:caness:caness_main|CanESS]] > [[Demography]] > Population\\
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The Population calculator contains three procedures: Net Immigration, Evolve Population and School Population.

=== Net Immigration ===

The Net Immigration procedure uses the //immigration// variable and the //emigration// variable to calculate //net international immigration//.

These variables are specified by region, gender, time and age. The //net international immigration// is passed on to Evolve Population.

=== Evolve Population ===

The evolve population procedure combines information on //net international immigration//, //base population//, //total period fertility//, //births distribution//, //gender shares at birth//, //mortality//, //international immigration mobility//, and //net immigration share// to generate //Canada region population//  by region, gender, time and age. //Canada region population// is passed on to the calculators [[Family Formation]] and [[Commercial Floor Space Population Age Related Buildings]].

It also provides the //Canada total population// by region and time. This variable is passed on to the calculators [[Family Formation]], [[Macro Economics]], [[Food Biomass Requirements]], [[Street Lighting Energy Use]], [[Commercial Use Vehicle Stock]], [[Commercial Floor Space Total Population Related]], [[Commercial Floor Space Office]], [[Municipal Waste Biomass Production]].

===School Population ===

The school population procedure derives the school age population by region and time from the Canadian regional population. This variable is used in the calculator [[Passenger Kilometers by Mode]].
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[[caness:glossary|CanESS Glossary]]
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