The 3rd International Symposium on Shallow Flows will be held at the Iowa Institute of Hydraulic Research at the University of Iowa June 4-16 2012.
A special session honoring the life and work of the late Professor Gerhard H. Jirka will include a paper on Site Scale Remote Sensing of Mixing Zones.
Friday, May 4, 2012
USPEA issued the NPDES 2012 Draft General Permit recently.
The permit is for discharges from the offshore subcategory of the Oil and Gas Extraction Point Source Category for the Western Portion of the Outer Continental Shelf of the Gulf of Mexico (GMG290000) .
The draft permit is available in PDF format at
The permit requires the use of CORMIX to model worst case critical dilution concentration (CDC) conditions for produced water discharges from offshore oil and gas drilling operations.
|CorPlot - sediment bottom deposition contours |
from a simulation study of drilling muds and cuttings discharge
CORMIX can model and predict the fate and effects of produced water discharges from offshore oil and gas drilling operations. The model can provide water column suspended sediment and tracer concentrations in addition to dimensions of the resultant disposal plume.
Additionally, CORMIX can be used to model drill cuttings and muds discharges from offshore operations.
The model can be used to model bottom sediment deposition over time varying ambient current conditions.
Thursday, May 3, 2012
Wednesday, May 2, 2012
|Regulatory Mixing Zone|
A regulatory mixing zone can be thought of as a limited area or volume where the initial dilution of a discharge occurs.
Water quality criteria apply at the boundary of the (regulatory) mixing zone, not within the mixing zone itself.