Changes between Version 28 and Version 29 of 2010WP/2010Action_institutions_Met_Office
- Timestamp:
- 2010-03-08T10:58:26+01:00 (14 years ago)
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2010WP/2010Action_institutions_Met_Office
v28 v29 44 44 45 45 === '''UKMO.11 — Vertical PPM scheme (v3.3)''' === 46 '''Motivation:''' The ppm is a 3rd order advection scheme with property of monotonicity. It could be superior over the existing 3 available vertical advection schemes in NEMO (cen2, muscl, and tvd), at least in the sense that it is one order higher. We will add an option to invoke the vertical PPM under the configurations of all the 6 available horizontal advection schemes in NEMO. As long as the horizontal advection doesn't exhaust a 3-d cell, the vertical ppm can even work with Courant Number > 1. This will be a good property for the s-coordinate. Also, it is good for the calculation of the advection of a discontinous field, such as thermocline, front. [[BR]][[BR]] '''Status :''' Scoping of work has started but implement has not[[BR]] '''main tasks :''' Code design, implementation, testing and documentation (4wk) [[BR]] '''Principal Investigator :''' Hedong Liu (heua@pol.ac.uk) Enda O'Dea (enda.odea@metoffice.gov.uk)[[BR]] '''Deadline'' ''''': 1 October 2010'''[[BR]]Priority: '''Low[[BR]]'''Science Reviewer :'' ''''' Rachid Benshila (TBC)'''[[BR]]System Reviewer : '''Rachid Benshila (TBC)''''' '''''46 '''Motivation:''' The ppm is a 3rd order advection scheme with property of monotonicity. It could be superior over the existing 3 available vertical advection schemes in NEMO (cen2, muscl, and tvd), at least in the sense that it is one order higher. We will add an option to invoke the vertical PPM under the configurations of all the 6 available horizontal advection schemes in NEMO. As long as the horizontal advection doesn't exhaust a 3-d cell, the vertical ppm can even work with Courant Number > 1. This will be a good property for the s-coordinate. Also, it is good for the calculation of the advection of a discontinous field, such as thermocline, front. [[BR]][[BR]] '''Status :''' Scoping of work has started but implement has not[[BR]] '''main tasks :''' Code design, implementation, testing and documentation (4wk) [[BR]] '''Principal Investigator :''' Hedong Liu (heua@pol.ac.uk) Enda O'Dea (enda.odea@metoffice.gov.uk)[[BR]] '''Deadline'' ''''': 1 October 2010'''[[BR]]Priority: '''Low[[BR]]'''Science Reviewer :'' '''''Guillaume Reffray'''[[BR]]System Reviewer : '''Rachid Benshila (TBC)''''' ''''' 47 47 48 48 === '''UKMO.X1 — User Support''' ===
