| ![](../images/dot_clear.gif) | ![](../images/669corner-ul.gif) | Lake Pontchartrain Atlas: | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | Physical Environments | ![You are at the Physical Environments section of the Environmental Atlas of Lake Pontchartrain](../images/pointer.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | ![](../images/dot_clear.gif) | | ![](../images/669corner-ll.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | ![](../images/dot_clear.gif) | ![](../images/dot_clear.gif) | | | ![](../images/spacer.gif) | Physical Environments - Circulation Contributors: Haralampides, McCorquodale Three-dimensional circulation modeling shows that the wind blowing over the surface of the lakes forces a two-gyre circulation pattern within the Lake. The pattern results in relatively strong downwind currents near the shorelines and return flow against the wind in the middle of the Lake. ![Image showing wind patterns induced by an north wind.](images/pg41fig1.gif) | Figure 41: Velocity magnitudes and induced lake circulation patterns resulting from sustained winds from the North. | ![Image showing wind patterns induced by an east wind.](images/pg41fig2.gif) | Figure 42: Velocity magnitudes and induced lake circulation patterns resulting from sustained winds from the East. | ![Image showing wind patterns induced by a west wind.](images/pg41fig3.gif) | Figure 43: Velocity magnitudes and induced lake circulation patterns resulting from sustained winds from the West. | ![Image showing wind patterns induced by a south wind.](images/pg41fig4.gif) | Figure 44: Velocity magnitudes and induced lake circulation patterns resulting from sustained winds from the South. | « Previous | Next » |