Earthsys 144: Fundamentals of GIScience
Basic Spatial Analysis, & Networks
where is your data? gis.stanford.edu


Lab Assignments
Submissions look great so far!
A few pointers:
- Read the Assignment on Canvas, carefully!
- Resubmit for full marks!
- Don't let Lab Submissions get away from you!
Spatial Question or Idea
What is the "where" of your project, and why does it matter to you? This could be the beginning reconnaissance on an archaeological site, a set of maps for you final project in another course, an interactive webmap that distributes information to the public about something useful, an art project to extract features from satellite imagery and use them in some interesting way (see: Jenny Odell), it's really wide open and up to your interests and creativity! |
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2 pts |
Proposed Workflow
Don't try to be too technical or "GISciencey" here. Just a simple, "I'll measure the distance from something I'm interested in, to something I think influences some characteristic of it, and do a simple regression," or, "I will use high resolution satellite imagery and historic maps to look for buried features in an area I am interested in," or "I will create a geodatabase of layers relevant to my project, including new data digitized from historic maps," or "I will create a survey that collects some information from contributors and plots it to an interactive web map for public use," etc... |
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2 pts |
Data Sources
This should be a straightforward list, with links, to data sources you have identified as useful, as well as your very brief idea about their application and utility. "Planet.com daily imagery - daily cadence allows mapping of hyperlocal flooding events," or "OpenStreetMap.org - water sources and clinic locations in Kibera, Kenya." |
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2 pts |
Lit Review/Bibliography
A quick review of previous work (if any) that is similar, useful or influential to your project, with a bibliography. Again, keep it brief and cull to 4 or fewer most important sources for this proposal. |
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2 pts |
GeoJSON file of your AOI
A polygon GeoJSON file (you can use QGIS, or geojson.io to create) of your Area of Interest (AOI). |
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2 pts |
Project Proposals are DUE THIS FRIDAY, APRIL 25!!
Basic Spatial Analysis
Inputs, Operations & Outputs

Spatial Scope
Local Operations

Neighborhood Operations

Global Operations


Selection
Set Algebra
- Less Than (<)
- Greater Than (>)
- Equal To (=)
- NOT Equal To (<>)

Boolean Algebra


Spatial Relationships
Spatial Selections
Adjacency

Spatial Selections
Proximity

Spatial Selections
Containment



Classification


Binary Classification

Data-defined Classification

Equal Interval

Equal Area or Quantile

Natural Breaks

Dissolve


Aggregating Attributes with Dissolve

Modifiable Areal Unit Problem
MAUP

Modifiable Areal Unit Problem
MAUP aggregaton effect



Modifiable Areal Unit Problem
MAUP Zoning effect

Proximity & Buffers


Vector Buffers

Vector Buffers

Vector Buffers

Overlay


Spatial Joins
count = 3
Clip

Intersect

Union

Erase

Slivers

Pt2 - Raster, Network & Basic Spatial Distributions
Distance Rasters

Raster Buffers



Raster Overlay

Raster Overlay

Raster Overlay


Raster Overlay


Raster Overlay


Networks

Centers (Nodes) & Links (Edges)

Network Travel Costs

Least Cost Paths


Least Cost Paths

Spatial Allocation

Geocoding

Core Areas & Spatial Central Tendency
Mean Center, Mean Circle & Standard Distance

Convex Hulls & Other "Minimum Bounding Geometries"

Convex Hulls & Other "Minimum Bounding Geometries"

Time-Geographic Density Estimation & GeoEllipses

Time-Geographic Density Estimation & GeoEllipses

Time-Geographic Density Estimation & GeoEllipses

Time-Geographic Density Estimation & GeoEllipses

Time-Geographic Density Estimation & GeoEllipses

Basic Spatial Analysis, Networks & Movement
By Stace Maples
Basic Spatial Analysis, Networks & Movement
- 535