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 -- Dr. Peter Löwe <[email protected]> Empfehlen Sie GMX DSL Ihren Freunden und Bekannten und wir belohnen Sie mit bis zu 50,- Euro! https://freundschaftswerbung.gmx.de _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
