Post on 22-Mar-2016
description
HYDROSPHERE
Oceans, Cryosphere, Surface and Subsurface Water, and
Atmosphere
Earth’s water compared to other planets
Elemental Abundances on Earth
Over 70% of Surface of Earth is covered in water
Earth’s Water Budget
• 97% in Oceans• 2% in Cryosphere• 1% Surface, Subsurface water, and
Atmosphere
Water Cycles
SURFACE WATERSURFACE WATER
• Lakes, Reservoirs• Rivers
Groundwater
• Subsurface Water
OceanographyOceanography
Coasts and SealevelCoasts and Sealevel
TSUNAMIS AND RATES OF PROPAGATION
Sea LevelSea Level
MEAN SEA LEVEL
HHWMHWMSL
MLWLLW
USGS
NOAAMHW: mean of all high tidesMLW: mean of all low tidesMSL: mean of MHW + MLWHHW: highest tide of a yearLLW: lowest tide of a year
NOAA uses MSL as its sea level datumUSGS uses HHW as its sea level datum
Sealevel Change over Time