{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

t3 - Geography 231 Introduction to Geospatial Methods Topic...

Info icon This preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Geography 231 Introduction to Geospatial Methods Topic 3: Geographic Phenomena and Data I: Representing Geography Goals for This Topic Introduce the concept of geographic representation Understand the concepts of fields and objects First cut at raster and vector data models Introduce Lab 1
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
2 Communicating Geographic Information The world is a complex place, and we can only observe a very small part of it Almost all human activities require knowledge about the earth Information is communicated through language, words, and symbols Models that represent the real world Representations Are needed to convey information How would you communicate a concept of pH? Fit information into a standard form or model Discipline or culturally defined Always simplify the truth that is being represented The world is too complex to communicate
Image of page 2
3 Representations Occur: In the human mind, when information is acquired through the senses and stored in memory In photographs, which are two-dimensional models of light received by the camera In written text, when information is expressed in words In maps, when information is selected and graphically displayed with marks on the page In a GIS, through the selection of entities and attributes What is your view of the world?
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon