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(a) Draw a simplified global water cycle showing ocean, land, atmosphere, and runoff
Chapter 55, Problem 9(choose chapter or problem)
(a) Draw a simplified global water cycle showing ocean, land, atmosphere, and runoff from the land to the ocean. Add these annual water fluxes to your drawing: ocean evaporation, 425 km3 ; ocean evaporation that returns to the ocean as precipitation, 385 km3 ; ocean evaporation that falls as precipitation on land, 40 km3 ; evapotranspiration from plants and soil that falls as precipitation on land, 70 km3 ; runoff to the oceans, 40 km3 . (b) What is the ratio of ocean evaporation that falls as precipitation on land compared with runoff from land to the oceans? (c) How would this ratio change during an ice age, and why?
Questions & Answers
QUESTION:
(a) Draw a simplified global water cycle showing ocean, land, atmosphere, and runoff from the land to the ocean. Add these annual water fluxes to your drawing: ocean evaporation, 425 km3 ; ocean evaporation that returns to the ocean as precipitation, 385 km3 ; ocean evaporation that falls as precipitation on land, 40 km3 ; evapotranspiration from plants and soil that falls as precipitation on land, 70 km3 ; runoff to the oceans, 40 km3 . (b) What is the ratio of ocean evaporation that falls as precipitation on land compared with runoff from land to the oceans? (c) How would this ratio change during an ice age, and why?
ANSWER:(a)
Simplified Global Water Cycle
Ocean ? Atmosphere ? Land ? Ocean
425 km3 Ocean Evaporation
385 km3 Ocean Evaporation that Returns to the Ocean as Precipitation
40 km3 Ocean Evaporation that Falls as Precipitation on Land
70 km3 Evapotranspiration from