73191 - Digital Mapping and GIS

Learning outcomes

Provide the basic elements of Geomatics disciplines with particular reference to the topography, the classical instrumentation and GPS. Provide basic elements concerning Cartography map projection theory and some applications.

Course contents

Cartography

Cartographic Mapping. Introduction and background about the problem of the cartographic projection. Deformation of a map. Sustainable deformations for a map at scale 1:n. Analytical approach to cartographic mapping.

The italian cartography. Technical and big-scale cartography. Regional topographic database.

Digital data representation: raster and vector form and some exchange standard format.

Digitalization and scanning of existing cartography.

Georeferencing process. Principal transformation models useful to georeferencing and parameters estimate method.

Photogrammetry for the production of digital cartography.

Elements of photogrammetry and laser scanning. Coordinate systems in photogrammetry. The central projection and projective transformation. The "normal case" in stereopair processing; evaluations of errors.

Photographic equipment and techniques (analogic and digital systems), color theory. Geometrical and radiometrical characteristics for digital acquisition, digital images, image processing and analysis. Metric and semi-metric film-based cameras.

Interior orientation. The calibration of non-metric digital cameras.

Exterior orientation: of a single image, of a stereopair in two stages, of a stereopair in a single stage. The survey of the Ground Control Points. The Photogrammetric Triangulation by independent models and by bundle block adjustment.

The photogrammetric restitution by means of stereoscopic and monoscopic digital photogrammetric workstations; rectification of digital images: photoplans and orthophotos.

The digital images and the image-matching procedures.

Numerical cartography

General characteristics of numerical cartography.

Nominal scale concept. Metrical contents. Informative contents. Inventory of conventional signs.

Phases of digital map production.

Codification, production, maintenance and updating of numerical technical cartography.

Geographic Information Systems

GIS: Introduction and general information. Phases of a GIS project. Tools. Geometrical component and alpha-numeric data.

Geographical data management through a GIS system.

QGIS software presentation and practice.

Practice lessons

Interpretation of coordinates on cartography maps on different scale.

Computer practices: production of digital cartography using semiautomatic and automatic digital photogrammetry.

Computer practices: usage of a largely used free and open source GIS software (QGIS).

Readings/Bibliography

Scientific publications, lectures notes and slides in digital form.

Bibliographic references for home study and further reading materials:

Kraus, K., 1998. Fotogrammetria vol.1 Teoria e applicazioni. Editore: Levrotto e Bella. ISBN: 888218028X.

Folloni, G., 1982. Principi di Topografia.

Migliaccio, F., Carrion, D., 2016. Sistemi Informativi Territoriali. Principi e applicazioni. UTET Università Editore. EAN: 9788860084750.

Teaching methods

Lectures and exercises in Laboratory or on personal computer using Open-Source software.

Analysis and discussion using examples of real cases.

In consideration of the type of activity and the adopted teaching methods, the attendance of this course requires the prior participation of all students in the Modules 1 and 2 on safety and health in the study places, in e-learning mode.

See https://elearning-sicurezza.unibo.it/?lang=en

Assessment methods

The final exam is unique and verifies the acquisition of the expected knowledge and skills by carrying out a written and oral test, without the help of notes or books.

At the time of the test, students must have an identification document (Identity Card or Driving License or Passport) and a badge and show it to the examiners.

The writing consists of various types of questions (multiple choice, open, or simple basic exercises) that cover the entire program of the course. Each question is associated, and declared immediately before the exam, with a score whose total exceeds the maximum of 3 units (33/30). The test must be performed within the indicated time range and generally not exceeding one hour.

The oral exam takes place immediately after the written test, and consists in some additional questions that may affect the final score by no more than +/- 3 points.

At the moment, the examination takes place in person, unless specific requests are proven and accepted well in advance by the candidates (not generally linked to the distance from the university headquarters or to situations of illness or Covid-19).

In the case of exam in online mode, the EOL platform (eol.unibo.it) will be used for the provision of the written and ZOOM application for surveillance and oral integration.

In the case of exam in online mode, it is necessary to have all the tools listed below:

• a stable internet network
• a desktop or notebook (hereafter PC) connected to the electricity network and to Internet
• a mobile device (smartphone or tablet) connected to the electricity network and to Internet, equipped with a video camera, which will be used as means of supervision by the examiners inside the Virtual Classroom
• the ZOOM app that allows video meeting and access to the virtual classroom must be installed on the mobile device
• the possibility of using a quiet environment in one's own home, free from other people and correctly lit, in which to set up a space with the elements listed above.

Teaching tools

A significant part of the course is organized by practical activities on the field and in the laboratory or on personal computer, by means of open-source software.

Office hours

See the website of Valentina Alena Girelli