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School of Geography FACULTY OF ENVIRONMENT Raster GIS.

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Presentation on theme: "School of Geography FACULTY OF ENVIRONMENT Raster GIS."— Presentation transcript:

1 School of Geography FACULTY OF ENVIRONMENT Raster GIS

2 School of Geography FACULTY OF ENVIRONMENT Introduction

3 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

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

5 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

6 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

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

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

9 Basics of raster data model Feature types: Networks and surfaces

10 Basics of raster data model Feature types: Images

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

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

13 Basics of raster data model Resolution and orientation (generalisation)

14 Basics of raster data model Topology

15 Vector to raster conversion Data sources

16 Vector to raster conversion – topological mismatch Data sources

17 Satellite and aerial imagery

18 Data sources DEMs (Digital Elevation Models) by direct measurement

19 Point-surface interpolation Data sources PointsSurface

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


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