Introduction to GIS

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GIS – What is it. No simple ______ anymore

definition

GIS – what’s in the S. – ______: the technology – Science: the concepts and theory – Studies: the societal context

Systems

Geographic/Geospatial Information Information about ______ on earth’s surface

places

A GI System is a computer based system which includes software, hardware, ______ and the geographic information

people Signup and view all the answers

A GIS System can be used to create, edit, query, ______ and display geographic information

analyse Signup and view all the answers

What is remote sensing?

Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object, in contrast to in situ or on-site observation. Signup and view all the answers

In what fields is remote sensing used?

Remote sensing is used in numerous fields, including geophysics, geography, land surveying, Earth science disciplines, military, intelligence, commercial, economic, planning, and humanitarian applications, among others. Signup and view all the answers

How is remote sensing generally used to detect and classify objects on Earth?

Remote sensing generally refers to the use of satellite- or aircraft-based sensor technologies to detect and classify objects on Earth. It includes the surface and the atmosphere and oceans, based on propagated signals (e.g. electromagnetic radiation). Signup and view all the answers

What are the two main types of remote sensing?

Remote sensing may be split into 'active' remote sensing (when a signal is emitted by a satellite or aircraft to the object) and 'passive' remote sensing (when the sensor instrument does not emit any kind of radiation). Signup and view all the answers

Name three Earth science disciplines in which remote sensing is used.

Exploration geophysics, hydrology, ecology, meteorology, oceanography, glaciology, and geology are Earth science disciplines in which remote sensing is used. Signup and view all the answers