School of Geography FACULTY OF ENVIRONMENT Raster GIS.

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Presentation transcript:

School of Geography FACULTY OF ENVIRONMENT Raster GIS

School of Geography FACULTY OF ENVIRONMENT Introduction

Programme Day 1: Introduction to raster modelling in ArcGIS Practical exercise #1: comparing raster and vector data models Point-surface interpolation Practical extercise #2: interpolating point data in ArcGIS Cartographic modelling Practical exercise #3: modelling in ArcGIS and Grid Day 2: Digital elevation models Practical exercise #4: terrain analysis in ArcGIS and grid

Safety, etc. Fire alarm and exits Toilets Tea and coffee Lunch

Day 1: Introduction to raster Prior experience with raster and vector data models? Basics of raster model Grids and cells, rows and columns Points, lines, areas, surfaces and images Binary, categorical and continuous data types Resolution and orientation (generalisation) Topology Typical data sources Vector to raster conversion Satellite and aerial imagery DEMs by direct measurement Point-surface interpolation

Prior experience? Vector GIS in ArcGIS and MapInfo? Familiarity with basic GIS concepts Familiarity with ArcGIS and ArcMap interface Raster GIS? ArcGIS, ArcView, MapInfo Vertical Mapper, Idrisi, GRASS, etc. Image processing software (e.g. ERDAS Imagine, PCI, etc.) Microsoft Excel (or any other spreadsheet software) Digital photography and image management/editing software

Basics of raster data model Grids and cells, rows and columns...

Basics of raster data model Feature types: Points, lines and areas

Basics of raster data model Feature types: Networks and surfaces

Basics of raster data model Feature types: Images

Basics of raster data model Data types: Continuous (a), categorical (b), image (c)

Basics of raster data model Data types: Binary (demonstration of raster file structures)

Basics of raster data model Resolution and orientation (generalisation)

Basics of raster data model Topology

Vector to raster conversion Data sources

Vector to raster conversion – topological mismatch Data sources

Satellite and aerial imagery

Data sources DEMs (Digital Elevation Models) by direct measurement

Point-surface interpolation Data sources PointsSurface

Querying in ArcMap Hands-on Exercise #1 Comparing raster and vector data models