都市部の流路

Question

<\/HEAD>極端な降雨によって引き起こされる都市部の流路の地図を目指して、最も合理的なアプローチを模索しています。<\/P> <\/P> 私が利用できるもの：<\/P> ArcGis 9.3.1 (ArcView ライセンス)<\/P> ArcHydro Tools 9 バージョン 1.4.0.256<\/P> 1メートル解像度のDEM（約200 km^2）<\/P> 河川網、建物、道路、プロジェクトエリアの輪郭のレイヤー<\/P> 残念ながら時間はかなり限られており、これは私のプロジェクトの一側面に過ぎません。<\/P> ArcHydroを使うこと自体が良いアイデアかどうか、やるべきことや避けるべきことについてのアドバイスをいただけると非常にありがたいです！私の印象では、多くの人がArcHydroを景観スケールで使用しています。費用（お金と時間の両面で）がかかる水文学モデル以外に見落としている代替手段はありますか？<\/P> <\/P> インガ<\/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