Sewage outfall plume dispersion observations with an autonomous underwater vehicle.
Water Sci Technol
; 52(12): 283-90, 2005.
Article
em En
| MEDLINE
| ID: mdl-16477997
ABSTRACT
This work represents one of the first successful applications of Autonomous Underwater Vehicles (AUVs) for interdisciplinary coastal research. A monitoring mission to study the shape and estimate the initial dilution of the S. Jacinto sewage outfall plume using an AUV was performed on July 2002. An efficient sampling strategy enabling greater improvements in spatial and temporal range of detection demonstrated that the sewage effluent plume can be clearly traced using naturally occurring tracers in the wastewater. The outfall plume was found at the surface highly influenced by the weak stratification and low currents. Dilution varying with distance downstream was estimated from the plume rise over the outfall diffuser until a nearly constant value of 1301, 60 m from the diffuser, indicating the near field end. Our results demonstrate that AUVs can provide high-quality measurements of physical properties of effluent plumes in a very effective manner and valuable considerations about the initial mixing processes under real oceanic conditions can be further investigated.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Água do Mar
/
Esgotos
/
Poluentes da Água
/
Monitoramento Ambiental
/
Oceanografia
Idioma:
En
Revista:
Water Sci Technol
Assunto da revista:
SAUDE AMBIENTAL
/
TOXICOLOGIA
Ano de publicação:
2005
Tipo de documento:
Article
País de afiliação:
Portugal