OXYGEN IN LAKES, STREAMS,
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OXYGEN IN LAKES, STREAMS, AND RESERVOIRS
description
OXYGEN IN LAKES, STREAMS,. AND RESERVOIRS. SOLUBILITY OF OXYGEN IN WATER RELATIVE TO PRESSURE. SOLUBILITY OF OXYGEN IN WATER RELATIVE TO TEMPERATURE. OXYGEN. SOURCES. LOSSES. CHEMICAL HUMIC ACIDS IRON COMMUNITY METABOLISM. ATMOSPHERE PHOTOSYNTHESIS. RED MUD – BLACK MUD. - PowerPoint PPT Presentation
Transcript of OXYGEN IN LAKES, STREAMS,
OXYGEN
SOURCES• ATMOSPHERE• PHOTOSYNTHESIS
LOSSES• CHEMICAL
– HUMIC ACIDS– IRON
• COMMUNITY METABOLISM
LAKE NASSER• Surface area [km2] 6,000 • Volume [km3] 162 • Maximum depth [m] 110 • Mean depth [m] 70 • Water level Regulated
Normal range of annual water level fluctuation [m] 25
• Length of shoreline [km] ca. 9,000
• Catchment area [km2] 2,849,000
OXYGEN DEFICIT INCREASES WITH
• INCREASED PHYTOPLANKTON PRODUCTION• INCREASED PHOSPHATE• INCREASE IN HYPOLIMNETIC VOLUME
OXYGEN DEFICIT PROPORTIONAL TO THE INVERSE OF THE EPILIMNETIC TRANSPARENCY
Example: Diamond Lake in Oregon