[RegCNET] lake model
Richard Anyah
anyah at cep.rutgers.edu
Thu Jun 28 22:40:53 CEST 2007
Hi Imran,
I know the group at NC State University ( Prof. Fred Semazzi's Research
Group) succefully managed to run latest version of lake model in parallel.
Richard
IMRAN NADEEM wrote:
>
> Hi Steve,
>
> I heard that present version of lake model works only in
> serial mode. What about latest version which you are going to
> put in the latest version of RegCM3. Does that works also in Parallel
> mode?
>
> Regards
> Imran Nadeem
>
> On 6/28/07, *Richard Anyah* <anyah at cep.rutgers.edu
> <mailto:anyah at cep.rutgers.edu>> wrote:
>
> Steve,
> That would be great. Update us when you get time to do it.
> Thanks
> Richard
>
>
> Steve Hostetler wrote:
>
> > Richard,
> > I have a newer version of the lake model. I am plan to put it into
> > the newest version of RegCM when I can find the time-- maybe
> sometime
> > this fall.
> >
> > steve
> >
> >-----------------------------------------------------
> >Steve Hostetler
> >US Geological Survey
> >Department of Geosciences
> >Room 104 Wilikinson Hall
> >Oregon State University
> >Corvallis, OR 97331-5560
> >tel 541 737-8928 fax 541 737-1200
> >
> >
> >
> >
> > Richard Anyah wrote:
> >
> >>Hi Mike,
> >>When the lake is turned off, the lake surface is treated as
> inland water
> >>body(patch) in the land surface scheme(BATS). In which case, the
> fluxes
> >>over the water patch may be different from the rest of the land
> cells.
> >>But, when you use the 1D lake, you introduce the vertical flux
> transport
> >>within the water column(full depth) and to the atmosphere which mayl
> >>signficantly change the atmospheric response; depending on the
> size and
> >>depth of the lake.
> >>
> >>
> >>The reference below may be useful. They used one of the original
> >>versions of RegCM. The lake model has not changed so much, I
> think. You
> >>could also check Hostetler et al., 1993 (check details in the
> ref. below).
> >>
> >>*
> >>*Gary T. Bates, Steven W. Hostetler, and Filippo Giorgi, 1995:
> Two-Year
> >>Simulation of the Great Lakes Region with a Coupled Modeling System.
> >>Monthly Weather Review:123, 1505 1522
> >> Richard
> >>
> >>
> >>Michael Notaro wrote:
> >>
> >>
> >>
> >>>Thanks, Richard! You have been quite helpful. I will look at
> those
> >>>papers.
> >>>
> >>>I want to clarify one thing.
> >>>When the lake is "turned off" then, does that mean the the lake
> does
> >>>not exist
> >>>and it is treated as land (bare soil, forest?)? So, if I run with
> >>>and without the lake model,
> >>>the difference is the effect of the existence of those lakes on the
> >>>atmosphere? I was interested
> >>>in investigating how the lakes affect the local climate.
> >>>
> >>>How is lake ice treated? Unfortunately, the papers on Africa won't
> >>>address that since
> >>>they are for a warm climate.
> >>>
> >>>Does anyone know of papers using RegCM3 and the lake model for the
> >>>Great Lakes?
> >>>
> >>>Thanks, Mike
> >>>
> >>>
> >>>
> >>>On Jun 28, 2007, at 8:33 AM, Richard Anyah wrote:
> >>>
> >>>
> >>>
> >>>>Hi Mike,
> >>>>
> >>>>The following publications may be relevant, though they use lake
> >>>>model from variants of the RegCM family for Lake Victroia in
> >>>>equatorial eastern Africa.
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>>I have some general questions about the lake model in RegCM3.
> >>>>>In particular, relating to the Great Lakes.
> >>>>>
> >>>>>Could someone email me the references to some papers that use the
> >>>>>lake model with regcm3? I would like to see previous
> applications
> >>>>>
> >>>>>
> >>>>>
> >>>>1. Song, Y., F.H.M. Semazzi and L. Xie, 2002: Development of a
> >>>>coupled regional climate simulation model for the Lake Victoria
> >>>>Basin. In /The East African Great
> Lakes,Limnology,Paleolimnology and
> >>>>Biodiversity/, Odada E and Olago G(eds). Gordon and Breach:
> >>>>Armsterdam: 141-154
> >>>>
> >>>>2. Song, Y., F.H.M. Semazzi and L. Xie, and L.J. Ogallo, 2004: A
> >>>>coupled regional climate model for Lake Victoria basin of East
> >>>>Africa. /Int. J. Climatol/. *24*, 57-75
> >>>>
> >>>>
> >>>>3. Anyah, R.O., and F. H. M. Semazzi, 2004: Simulation of the
> >>>>response of Lake Victoria basin climate to lake surface
> >>>>temperatures./Theor. Appl. Climatol/,* 79, *55-69
> >>>>
> >>>>
> >>>>4. Anyah, R.O., F.H.M. Semazzi and Lian Xie, 2006: Simulated
> >>>>physical mechanisms associated with multi-scale climate
> variability
> >>>>over Lake Victoria Basin in East Africa, Monthly Weather Review:
> >>>>134,3588-3609
> >>>>
> >>>>
> >>>>
> >>>>>What dynamics does the lake model simulate? Lake ice
> fluctuations?
> >>>>>Changes in lake level?
> >>>>>
> >>>>>
> >>>>>
> >>>> You may have to compute changes in E, P and horizonatal
> >>>>mosture convergence to infer lake level fluctuations.
> >>>> Also the 1D lake use simplified vertical exhange of moisture
> >>>>and heat between the lake and the atmosphere.(See refs. 1, 2 and 4
> >>>>above)
> >>>>
> >>>>
> >>>>
> >>>>>If the lake model is turned off, does the model assume
> >>>>>climatological lake
> >>>>>temperatures or is the lake replaced by land?
> >>>>>
> >>>>>
> >>>>>
> >>>>As far as I know when the lake is tuurned off, the "lake" surface
> >>>>temperature uses the surface temperature, unless you physically
> >>>>prescribe 'climatological' temperature over the lake surface
> >>>>
> >>>>
> >>>>
> >>>>Hope the information may be helpful.
> >>>>
> >>>>Richard
> >>>>
> >>>>--
> >>>>------------------------------------------------
> >>>>Richard Anyah
> >>>>Research Associate
> >>>>Center for Environmental Prediction
> >>>>Department of Environmental Sciences
> >>>>Rutgers University
> >>>>14 College Farm RD
> >>>>New Brunswick, NJ 08901-8551
> >>>>Phone: (732) 932 9735
> >>>>Fax: (732) 932 8644
> >>>>-----------------------------------------------
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>
> >>
>
>
> --
> ------------------------------------------------
> Dr. Richard Anyah
> Research Associate
> Center for Environmental Prediction
> Department of Environmental Sciences
> Rutgers University
> 14 College Farm RD
> New Brunswick, NJ 08901-8551
> Phone: (732) 932 9735
> Fax: (732) 932 8644
> http://www.envsci.rutgers.edu/~anyah
> <http://www.envsci.rutgers.edu/%7Eanyah>
> -----------------------------------------------
>
>
>
>
>
>
>
> _______________________________________________
> RegCNET mailing list
> RegCNET at lists.ictp.it <mailto:RegCNET at lists.ictp.it>
> https://lists.ictp.it/mailman/listinfo/regcnet
>
>
>
>
> --
> Imran Nadeem
> PhD Student
> Institute of Meteorology
> Department of Water, Atmosphere and Environment
> Uni. of Natural Resources and Applied Life Sciences (BOKU)
>
> Peter-Jordan Strasse 82
> 1190 Vienna, Austria
>
> Mobile: +43 699 1194 3044
> Tel.: +43 1 47654 5614
> Fax: +43 1 47654 5610
>
>------------------------------------------------------------------------
>
>_______________________________________________
>RegCNET mailing list
>RegCNET at lists.ictp.it
>https://lists.ictp.it/mailman/listinfo/regcnet
>
>
More information about the RegCNET
mailing list