Building Geodatabase of the Brazos basin For the application of WRAP and SWAT By Seongha Hwang April 17, 2002

Contents  Introduction  What is Geodatabase?  How to create?  Relationship class  Application  Result  Next step  Question

Introduction  This study deals with building Geodatabase of the Brazos river basin for the application of WRAP and SWAT model.  Basic Concept and Creating a new personal Geodatabase.

What is Geodatabase?  Geodatabase model - A data model included in ArcGIS for representing geographic information

Categories of Geodatabase  Personal Geodatabase - many readers and a single editor  Multiuser Geodatabase - can be read and edited by multi users

How to create?  Creating a new geodatabase from scratch  Migrating existing data into the geodatabase  With CASE tools

Creating a new geodatabase from scratch  No data or part of data  Designing and managing items with ArcCatalog

Migrating existing data into the Geodatabase  Shapefiles, Coverages, INFO tables, and dBASE tables ArcCatalog Convert to Geodatabase

Building Geodatabase with CASE tools  CASE : Computer-Aided Software Engineering - Tools and techniques that automate the process of developing software systems and database design

Relationships between objects  A relationship class explicitly defines the relationships between objects in a geodatabase

Application - Brazos river basin

Datasets for the Brazos basin  WRAP  SWAT

Datasets for WRAP  DEM (30X30)  Control Points(3316)  Stream network(NHD)  FDR  Curve Numbers  Precipitation(mean annual)

Datasets for SWAT  STATSGO  National soil table  National Land Cover Dataset  Land use table  Weather Stations  Weather data

Creating Brazos Geodatabase  ArcCatalog in ArcGis - Creating a New personal Geodatabase

Creating a new personal geodatabase

Importing existing data  In Data folder - Export the data into Geodatabase  In Geodatabase - Import the data from their folder

Import and Export

Convert and Store  Using import or export tools, conversion of data into Geodatabase is performed automatically, then data are stored in the Geodatabase.

Result

Preview

Metadata

Next Step  Establishing complete geodatabase  Giving relationships between objects

Question ? Questionnent ? ¿hay alguna pregunta? 없음말고 … ^o^ /