Encephalitis - Dynamic Modeling of Diseases and Pests - page 92

OUTFLOWS:
Mosq3 Death 32 then 0.8 * Mosq3 Adults else Mosq3 Adults *

( Mos3DD/ M3 LS Adult ) * 0.5
Mosq3 Eggs(t)

= IF Low <

= Mosq3 Eggs(t − dt) + (Ovipositing + Fudge −

Mosq3 Hatching −

Mosq3 Egg Mortality) * dt
INIT Mosq3 Eggs

= 100

INFLOWS:
Ovipositing

Mosq3 Adults * Mosq3 Egg # * (Mos3DD/ M3 LS Adult) *
Standing Water
Fudge

=

= IF Julian Date = Spring and Mosq3 Eggs < 100 then 100 −

Mosq3 Eggs else 0

OUTFLOWS:
Mosq3 Hatching Mosq3 Eggs * (Mos3DD / M3 LS Egg)

Mosq3 Egg Mortality

=

0 then
(Mos3DD/M3 LS Egg) * 0.1 * Mosq3 Eggs else (Mos3DD/M3 LS Egg) *
0.3 * Mosq3 Eggs
Mosq3 Larvae(t)

= if SMTH1(Mos3DD,30) =

= Mosq3 Larvae(t − dt) + (Mosq3 Hatching −

Mosq3 Eclosing Mosq L Death) * dt

INIT Mosq3 Larvae

−

= 0

INFLOWS:
Mosq3 Hatching = Mosq3 Eggs * ( Mos3DD / M3 LS Egg )

OUTFLOWS:
Mosq3 Eclosing = Mosq3 Larvae * ( Mos3DD / M3 LS Larvae )

Mosq L Death if SMTH1(Mos3DD,30)= 0 then 0.1 * Mosq3 Larvae else

(Mos3DD / M3 LS Larvae)*7*Mosq3 Larvae
Mosq3 Egg #

=

100
Mosq3 Oviposition Rate

=

= 100

Precipitation
Cum Precip(t)

= Cum Precip(t − dt) + (Events − Dump) * dt

INIT Cum Precip = 0

INFLOWS:
Events = Raining

OUTFLOWS:
Dump = IF INT(TIME()/365)*365 = TIME then Cum Precip else 0

Standing Water(t) = Standing Water(t − dt) + (Raining − Drying) * dt

INIT Standing Water = 0

INFLOWS:
Raining = IF Rain Event < 1 then Normal(0.8,0.4) else 0

OUTFLOWS: