caminos de flujo en áreas urbanas

Question

<\/HEAD>Con el objetivo de un mapa de caminos de flujo en áreas urbanas causados por lluvias extremas, estoy tratando de encontrar el enfoque más razonable.<\/P> <\/P> Lo que puedo aplicar:<\/P> ArcGis 9.3.1 (licencia ArcView) <\/P> ArcHydro Tools 9 versión 1.4.0.256<\/P> un DEM con resolución de 1 m (~ 200 km^2)<\/P> capas de red fluvial, edificios, calles y contorno del área del proyecto<\/P> desafortunadamente solo una cantidad bastante limitada de tiempo, ya que es solo un aspecto de mi proyecto.<\/P> ¡Cualquier consejo sobre si es buena idea usar ArcHydro, cosas que hacer y evitar es muy apreciado! Mi impresión es que la mayoría de la gente usa ArcHydro a escala paisajística. ¿Estoy pasando por alto una alternativa aparte de un modelo hidrológico costoso (en términos de dinero y tiempo)?<\/P> <\/P> Inga<\/P><\/BODY><\/HTML>

MarkBoucher · Answer

I looked over the file location options that I can see and found nothing.

Then I did a search and found this: Redirect ArcHydro 2. temp directory​. It looks like the temp directory used by ArcMap and Arc Hydro is the same Windows default directory.

I followed the instructions in my Windows 7 environment and it worked.

MarkBoucher · Answer

I haven't done anything other than make a directory I named \GIS on my C: drive. I've not mess with partitions.

I don't know off hand how to change the temp file location.

IngaFrerk · Answer

Hi Mark, appreciate your answers and suggestions.

I will do the following:

- create a raster with larger grid size

- chew the implication of filling sinks over

- start DEM Reconditioning following the hints you gave.

Before getting started I have two more questions @Also, processing from your local drive is much faster then processing over the network.:

Is that C:\ coercively or does another partition of the same hard drive do as well?

And is there an option to tell ArcHydro where to put the temp files? (I did read about setting the target location in your problem solver collection.) My first tests (not even using that DEM monster) crammed the machine's C:\ drive with fairly big temp files.

Have a good weekend,

Inga