3D Watershed Celebes

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Information about 3D Watershed Celebes

Published on May 30, 2007

Author: httsan

Source: slideshare.net

Description

Deriving Watersheds Area from SRTM in Central Celebes
by Abdul Wahid Muklis

Deriving Watersheds Area from SRTM in Central Celebes Compossed by: Abdul Wahid Muklis G 051060111 3D Analyst 2007

Introduction 3D analyst make model more realistic and easy to interpret according to the real 3D in the worlds 3D analyst tool to derive watershed as a hydrological model Central Celebes located in Indonesia consist of highland (mountain), valley, hill and streams DEM (Digital Elevation Model) data can derived from Shuttle Radar Topography Mission (SRTM)

3D analyst make model more realistic and easy to interpret according to the real 3D in the worlds

3D analyst tool to derive watershed as a hydrological model

Central Celebes located in Indonesia consist of highland (mountain), valley, hill and streams

DEM (Digital Elevation Model) data can derived from Shuttle Radar Topography Mission (SRTM)

Requirements SRTM data 3DEM software* ArcMap** ArcScene** Arc Hydro Tools** Vektor data (optional) **Copyright © ESRI *freeware

SRTM data

3DEM software*

ArcMap**

ArcScene**

Arc Hydro Tools**

Vektor data (optional)

Steps 2 do Load SRTM data using 3DEM software - crop area - fill blank area - convert projection - then save as GeoTiff file (DEM data) Open DEM (GeoTiff) file in ArcMap

Load SRTM data using 3DEM software - crop area - fill blank area - convert projection - then save as GeoTiff file (DEM data)

Open DEM (GeoTiff) file in ArcMap

Cont’d Do calculation in order to make integer value data and to vanish minus value in raster calculator, script: Int([sulteng.tif)] and Con ([sulteng.tif] < 0, 0, sulteng.tif]).

Do calculation in order to make integer value data and to vanish minus value in raster calculator, script: Int([sulteng.tif)] and Con ([sulteng.tif] < 0, 0, sulteng.tif]).

Flow Direction Select Terrain Preprocessing | Flow Direction Flow Accumulation Select Terrain Preprocessing | Flow Accumulation Cont’d All steps to derived Watershed and Stream Network Delineation has been provided by ArcHydro tools:

Flow Direction

Select Terrain Preprocessing | Flow Direction

Flow Accumulation

Select Terrain Preprocessing | Flow Accumulation

Stream Definition Select Terrain Preprocessing | Stream Definition Stream Segmentation Select Terrain Preprocessing | Stream Segmentation Cont’d

Stream Definition

Select Terrain Preprocessing | Stream Definition

Stream Segmentation

Select Terrain Preprocessing | Stream Segmentation

Catchment Grid Delineation Select Terrain Preprocessing | Catchment Grid Delineation Open all file resulted from previous step in Arc Scene Cont’d 3D Look

Catchment Grid Delineation

Select Terrain Preprocessing | Catchment Grid Delineation

Open all file resulted from previous step in Arc Scene

Be considered to the base height & rendering as z value in layer properties, also vertical exaggeration in scene properties Cont’d 3D Look

Be considered to the base height & rendering as z value in layer properties, also vertical exaggeration in scene properties

Cont’d 3D Look

That's All... Thank you....

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