Plume tracking and dilution of effluent from the Boston sewage outfall

2010 ◽  
Vol 70 (2) ◽  
pp. 150-161 ◽  
Author(s):  
Carlton D. Hunt ◽  
Alex D. Mansfield ◽  
Michael J. Mickelson ◽  
Carl S. Albro ◽  
W. Rockwell Geyer ◽  
...  
Keyword(s):  
Sewage Outfall ◽  
Plume Tracking

Distribution of Trialkylamines and Coprostanol in San Pedro Shelf Sediments Adjacent to a Sewage Outfall

2000 ◽  
Vol 40 (8) ◽  
pp. 680-687 ◽  
Author(s):  
Cristina Maldonado ◽  
M.Indira Venkatesan ◽  
Charles R Phillips ◽  
Josep M Bayona
Keyword(s):  
Sewage Outfall ◽  
San Pedro ◽  
Shelf Sediments

scholarly journals AUV-Based Plume Tracking: A Simulation Study

2016 ◽  
Vol 2016 ◽  
pp. 1-15 ◽  
Author(s):  
Awantha Jayasiri ◽  
Raymond G. Gosine ◽  
George K. I. Mann ◽  
Peter McGuire
Keyword(s):  
Simulation Study ◽  
Navigation System ◽  
Autonomous Underwater Vehicle ◽  
Unscented Kalman Filter ◽  
High Rate ◽  
Sensor Data ◽  
Boundary Tracking ◽  
Plume Tracking ◽  
Gradient Based ◽  
Rate Sensor

This paper presents a simulation study of an autonomous underwater vehicle (AUV) navigation system operating in a GPS-denied environment. The AUV navigation method makes use of underwater transponder positioning and requires only one transponder. A multirate unscented Kalman filter is used to determine the AUV orientation and position by fusing high-rate sensor data and low-rate information. The paper also proposes a gradient-based, efficient, and adaptive novel algorithm for plume boundary tracking missions. The algorithm follows a centralized approach and it includes path optimization features based on gradient information. The proposed algorithm is implemented in simulation on the AUV-based navigation system and successful boundary tracking results are obtained.

A massive summer-kill of the dog-whelk, Nucella lapillus, on the north Cornwall coast in 1995: freak or forerunner?

1999 ◽  
Vol 79 (1) ◽  
pp. 103-109 ◽  
Author(s):  
P.E. Gibbs ◽  
J.C. Green ◽  
P.L. Pascoe
Keyword(s):  
High Mortality ◽  
Laboratory Experiments ◽  
Algal Bloom ◽  
Extended Period ◽  
Littorina Littorea ◽  
Nucella Lapillus ◽  
Sewage Outfall ◽  
The North ◽  
Algal Toxicity ◽  
Calm Weather

In the summer of 1995 a massive kill of the dog-whelk, Nucella lapillus, occurred in Bude Bay on the north Cornish coast. High mortality was detectable along 12 km of shoreline. The only other intertidal species affected appeared to be another neogastropod, Ocenebra erinacea. The cause of the kill is unknown but the evidence suggests that it occurred in early July following an extended period of warm, calm weather in June. Possible causes of this event are discussed: algal toxicity may have been responsible since an algal bloom was detected offshore in July in the area. Laboratory experiments exposing gastropods to different species and concentrations of microalgae, designed to test whether N. lapillus is more sensitive than Monodonta lineata and Littorina littorea, gave inconclusive results. No comparable kill has occurred in the Bude area for at least 20 y, but it is suggested that nutrients from a newly-constructed, offshore sewage outfall may now stimulate local algal bloom development during calm weather periods.

scholarly journals The role of vision in plume tracking by flying Drosophila

2013 ◽  
Vol 4 ◽  
Author(s):  
Dickinson Michael ◽  
Van Breugel Floris
Keyword(s):  
Plume Tracking

Predicting the Physical Effects of Relocating Boston's Sewage Outfall

2000 ◽  
Vol 50 (1) ◽  
pp. 59-71 ◽  
Author(s):  
R.P. Signell ◽  
H.L. Jenter ◽  
A.F. Blumberg
Keyword(s):  
Sewage Outfall ◽  
Physical Effects

Re-assessing the Extent of Impact of Malta’s (Central Mediterranean) Major Sewage Outfall Using ERS SAR

2000 ◽  
Vol 40 (9) ◽  
pp. 734-738 ◽  
Author(s):  
V Axiak ◽  
P Pavlakis ◽  
A.J Sieber ◽  
D Tarchi
Keyword(s):  
Central Mediterranean ◽  
Sewage Outfall
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