answers graded A+ updated
What is GIS? - correct answer ✔✔-smart maps
-geographic information systems
-a computer-based system to aid in the collection, maintenance, storage, analysis, output, and
distribution of spatial data and information
improvement/ advances that led to GIS (mapping) - correct answer ✔✔--carographic tools
--aerial photography
--stellite
--conversion to digital format
--digital cartography
improvement/ advances that led to GIS (Computers) - correct answer ✔✔-digital data storage
-personal computers
-database programs
-increased storage and speed
-interdisciplinary applications
five essential functions of a GIS - correct answer ✔✔-store
-query
-analyze
-display
-capture
, capturing spatial data - correct answer ✔✔-creating or obtaining digital datasets
-GPS, scanning maps, mapping websites, mapping aerial photos
storing spatial data - correct answer ✔✔-spatial features
-point features;schools
-line features;roads
-polygon features;water bodies
answering questions - correct answer ✔✔-feature size or location
-spatial relationships of features from different layers
-distance
analyzing data - correct answer ✔✔-combine different layers
-proximity analysis (whats nearby)
-compare changes over time
-modeling
-problem solving
displaying results - correct answer ✔✔summarzing data with a map or graphic
-visually interpret results
limitations - correct answer ✔✔-"static", snapshot, need for frequent updates
-standard protocols
-expenses in data acquisition, specialized training