On Fri, 2011-08-05 at 09:32 +0200, [email protected] 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. :-)
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