Last updated April 10, 2022

Status: #📥 Tags: GEOG 150 Inputs #archivedCards/geog150

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' GEOG 150 Week 10

Class:: geog150

Notes

John snow 1854 did what ?

• plotted location of deaths due to cholera using points
• found a related pump

GIS analysis and it’s difference from GIS mapping ?

• Quantifies spatial relationships

Types of spatial relationships ?

• Measurements
  • Physical distances, lengths, and areas
    • Patterns, perims, area
• Proximal
  • Are within a distance of
    • Near far, absolute, relative
• Topological
  • Are spatially identical/adjacent to?
    • Shape, size, intersection, etc
• Directional
  • Bearings and compass directions
    • NESW

Measurements

Measurements forms types ?

• Recoding ;; Reclassifying old values into new categories

• Patterns ;; Random, uniform, clustered

Proximity Analysis

?

• Provides a measure of nearness or farness using distance or some other relative measure of distance such as travel time. Close proximity means small distance

Proximity analysis is usually conducted to ;; evalute the influence of objects with respect to other surrounding objects

Buffers is an example of ;; proximity analysis

Buffers ? Simple buffering for vectors, or complex for lines

Topological (vector overlay) analysis ?

• Computationally combine data sets for new input
• Not same as visual overlay/transparency
• Involves points, lines, polygons
• Shape, size, intersection, etc

Thoughts/Questions

Backlinks

1

list from & and !outgoing(&)

Created:: 2021-11-16 19:11