cycles describe the transfer and changes from one storage reservoir to another examples: rock cycle,...

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Cycles • Describe the transfer and changes from one storage reservoir to another • Examples: rock cycle, water cycle, carbon cycle

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Page 1: Cycles Describe the transfer and changes from one storage reservoir to another Examples: rock cycle, water cycle, carbon cycle

Cycles

• Describe the transfer and changes from one storage reservoir to another

• Examples: rock cycle, water cycle, carbon cycle

Page 2: Cycles Describe the transfer and changes from one storage reservoir to another Examples: rock cycle, water cycle, carbon cycle

Rock cycle

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Page 3: Cycles Describe the transfer and changes from one storage reservoir to another Examples: rock cycle, water cycle, carbon cycle

Rock cycle

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Page 4: Cycles Describe the transfer and changes from one storage reservoir to another Examples: rock cycle, water cycle, carbon cycle

Water cycle

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Page 5: Cycles Describe the transfer and changes from one storage reservoir to another Examples: rock cycle, water cycle, carbon cycle

• Average amount of time spent in a reservoir

• Residence time =

amount in reservoir/amount added (removed) per unit time

Residence time

Amount out/time

Amount in/timeAmount in reservoir

Page 6: Cycles Describe the transfer and changes from one storage reservoir to another Examples: rock cycle, water cycle, carbon cycle

Residence time at Berkeley

• 20,000 students

• 5,000 enter (leave)/year

• Residence time?

Residence time = 20,000 students/5,000 students/year

= 4 years

Page 7: Cycles Describe the transfer and changes from one storage reservoir to another Examples: rock cycle, water cycle, carbon cycle

Residence time of water in the ocean

• Volume in ocean: 1.3x109 km3

• Discharge from rivers: 3.5x104 km3/yr

• Residence time: volume/discharge= 1.3x109 km3/ 3.5x104 km3/yr

= 30 ka

Page 8: Cycles Describe the transfer and changes from one storage reservoir to another Examples: rock cycle, water cycle, carbon cycle

Carbon cycle

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Page 9: Cycles Describe the transfer and changes from one storage reservoir to another Examples: rock cycle, water cycle, carbon cycle

Long term Carbon cycle

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Page 10: Cycles Describe the transfer and changes from one storage reservoir to another Examples: rock cycle, water cycle, carbon cycle

Carbon cycle: volumes

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Page 11: Cycles Describe the transfer and changes from one storage reservoir to another Examples: rock cycle, water cycle, carbon cycle

Last 400,000 years

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