BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Adapting to life: Ocean ecosystem modelling using an unstructured 
 and adaptive mesh ocean model - Hill\, J (Imperial College London)
DTSTART:20120824T090000Z
DTEND:20120824T093000Z
UID:TALK39387@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:Primary production in the world ocean is significantly control
 led by meso- and sub-mesocale process. Thus existing general circulation m
 odels applied at the basin and global scale are limited by two opposing re
 quirements: to have high enough spatial resolution to resolve fully the pr
 ocesses involved (down to order 1km) and the need to realistically simulat
 e the basin scale. No model can currently satisfy both of these constraint
 s. Adaptive unstructured mesh techniques offer a fundamental advantage ove
 r standard fixed structured mesh models by automatically generating very h
 igh resolution at locations only where and when it is required. Mesh adapt
 ivity automatically resolves fine-scale physical or biological features as
  they develop\, optimising computational cost by reducing resolution where
  it is not required. \n\nHere\, we describe Fluidity-ICOM\, a non-hydrosta
 tic\, finite-element\, unstructured mesh ocean model\, into which we have 
 embedded a six-component ecosystem model\, that has been validated at a nu
 mber of ocean locations. We show the different meshes that arise from usin
 g different metrics to create the adaptive mesh and from the underlying ph
 ysical and biological processes that occur at each station. We then apply 
 the model to a three-dimensional restratification problem and examine the 
 effect of mesh resolution on simulated biological productivity on both fix
 ed and adaptive meshes.\n\n
LOCATION:Seminar Room 1\, Newton Institute
END:VEVENT
END:VCALENDAR