GIS Essentials for Modern Engineers Presented by Mabogunje Oludare Ola

INTRODUCTION What is GIS Geographic Concepts ▫Location ▫Distribution ▫Association ▫Interaction ▫Change

INTRODUCTION CONTD Geographical data

INTRODUCTION CONTD Geographical data

INTRODUCTION CONTD Users of GIS ▫Application ▫Developer ▫Science/Engineering

INTRODUCTION CONTD Users of GIS

INTRODUCTION CONTD Users of GIS

INTRODUCTION CONTD Uses of GIS

INTRODUCTION CONTD Uses of GIS

DATA Primary data ▫obtained via direct observation or measure, and Secondary data ▫ collected by a different party. Data acquisition ▫time-consuming aspects of any GIS project. Metadata ▫data about data and promote data exchange, dissemination, and integration.

DATA CONTD Data ▫specific facts, measurements, or characteristics of objects and phenomena of interest. Information ▫knowledge of value that is obtained from the analysis of data.

DATA MODELS Raster data model ▫Satellite Imagery ▫Aerial Photograph Vector Data Models

Satellite Imagery Kainji Dam

Aerial Photo Lagos

DATA QUALITY Accuracy ▫Accurate feature Identification ▫Position ▫Attribute ▫Temporal Errors

MAPS Why map ▫Representation of the world Types of Maps ▫Reference map ▫Thematic map ▫Dynamic map

MAP

GIS AND CAD GIS and CAD interchange GIS in engineering workflow

GIS APPLICATIONS Facilities Management Environment and Natural Resources Management Street Network Planning and Engineering Land Information System

OIL AND GAS

ENVIRONMENTAL MONITORING

COASTAL MANAGEMENT

Mininng