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SUMMARY:Taking the Plunge: Stages of a dense river inflow into a lake - Ch
 arlie Hogg
DTSTART:20130214T113000Z
DTEND:20130214T123000Z
UID:TALK42327@talks.cam.ac.uk
CONTACT:Catherine Pearson
DESCRIPTION:The fate of river water entering a lake remains an uncertainty
  in many important limnological questions. The questions that still need a
 ddressing include how water management practices can be  improved and how 
 lake ecosystems will change in future climate scenarios. I will describe a
  field campaign which investigated the transport and mixing of a river inl
 et into Lake Iseo\, Italy. We observed the inflow to fall laterally after 
 entering the lake. We suggest that this is caused by a lateral falling mec
 hanism which occurs when the internal Froude number is slightly larger tha
 n unity. In addition\, measurements of a range of tracers were taken to fi
 nd the dilution of the river after it had started to intrude into the lake
 . Our results found self-consistent mixing rates from the available natura
 l tracers. We will also discuss on-going laboratory experiments analogous 
 to the underflow stage of the river inflow.\n
LOCATION:Open Plan Area\, BP Institute\, Madingley Rise CB3 0EZ
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