310 likes | 523 Views
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
E N D
HYDROSPHERE Oceans, Cryosphere, Surface and Subsurface Water, and Atmosphere
Earth’s Water Budget • 97% in Oceans • 2% in Cryosphere • 1% Surface, Subsurface water, and Atmosphere
SURFACE WATER • Lakes, Reservoirs • Rivers
Groundwater • Subsurface Water
MEAN SEA LEVEL USGS NOAA HHW MHW MSL MLW LLW MHW: mean of all high tides MLW: mean of all low tides MSL: mean of MHW + MLW HHW: highest tide of a year LLW: lowest tide of a year NOAA uses MSL as its sea level datum USGS uses HHW as its sea level datum