View
222
Download
1
Tags:
Embed Size (px)
Citation preview
Cycles
• Describe the transfer and changes from one storage reservoir to another
• Examples: rock cycle, water cycle, carbon cycle
Rock cycle
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
Rock cycle
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
Water cycle
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
• 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
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
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
Carbon cycle
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
Long term Carbon cycle
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
Carbon cycle: volumes
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
Last 400,000 years
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.