Worksheets2.5 - Upwelling, El Nino, Tropical Cyclones
Total questions: 10
Worksheet time: 16mins
Upwelling can be caused by (select all that apply)
Wind forcing water away from a coastline
Wind forcing water towards a coastline
Cold, salty water sinking to the bottom
Mid-Ocean ridge or seamount deflecting a current towards the surface k
Upwelling can cause
warmer water conditions
decrease in biodiversity
increased nutrients and productivity in surface waters
Decreased productivity in surface waters
The Humboldt Current
Cold water current that flows north along the western coast of South America
Warm water current that flows north along the coast of South America
A cold water current that flows north along the coast of the western United States
A warm water current that flows north along the coast of the western United States
This diagram represents what condition in the Pacific Ocean
El Nino Conditions
La Nina Conditions
Normal Conditions
During normal atmospheric conditions in the Pacific Ocean
Strong winds blow water towards the coast of South America
Strong winds blow water away from South America
Cold, nutrient poor water moves towards the surface
there is a low level of productivity along the coast of South America.
During an El Nino event,
Upwelling along the South American Coast stops
Upwelling along the South American Coast is amplified
prevailing trade winds increase, pushing warm water west towards Australia.
Productivity increases along South American Coastline.
a cold current that develops of the coast of Ecuador, reducing sea surface temperatures for a prolonged period of time.
El Nino
Thermohaline Circulation
La Nina
Coriolis current
During El Nino Events, the peruvian anchovy industry is
negatively impacted (Fisheries Crash)
Positively Impacted (Fisheries thrive)
During El Nino events Australia experiences
excessive rain
drought conditions
Tropical Cyclones are most likely to form under what conditions (select all that apply)
Over warm water
over cold water
June-October in the Atlantic Ocean
December - May in the Atlantic Ocean
