[GRASS-user] Ability to model flash flooding

[Ian Willis]

On Fri, 2011-08-05 at 09:32 +0200, peter.loewe at gmx.de wrote:
> Hello Ian,
> 
> >To learn how to use grass I've been trying to solve a real world
> >problem. The problem that I chose was the flash flooding which occurred
> >in south eastern Queensland. I'd like to see if grass could have
> >provided reasonably accurate predictions and see if it could be used as
> >a warning system.
> >Ideally what I'd like to do is use the archived radar rainfall
> >information from http://www.bom.gov.au/products/IDR503.loop.shtml#skip
> >which can be found on http://gw.barratt.com.au/radar/IDR503/2011/01/10/
> >I am intending extrapolate the rainfall rate using the Z value
> >conversions recommended for east coast lows as per
> >http://www.catchment.crc.org.au/pdfs/technical200207.pdf
> >and then convert the rainfall rate rasters to the resolution of the
> >aster dem.
> ...
> >Any thoughts would be appreciated.
> 
> some earlier weather-radar related work with GRASS can be found here:
> http://gisws.media.osaka-cu.ac.jp/grass04/viewpaper.php?id=44
> 
> http://onlinelibrary.wiley.com/doi/10.1111/j.1467-9671.2004.00178.x/abstract
> 
> http://opus.bibliothek.uni-wuerzburg.de/frontdoor.php?source_opus=759&la=en [-> the document is in german, but the technical appendices might be of interest for you -> Z/R realtionship, etc.]
> 
> FWIW here's study concerning visual quality assessment for 3D radar-met data: 
> http://www.docstoc.com/docs/69767645/4D-data-visualisation-and-quality-control
> 
> Best,
> Peter
Thanks for the info, I failed german when I was 13 but it might be
interesting to see what a little motivation can do. :-)