Intro to ArcGIS
Yoast 2013
Overview
• What is GIS?
• Common uses
• Software
• Interface & navigation
• Adding layers
• Customizing &
displaying layer...
What is GIS?
• Geographic Information Systems (GIS) is a
computer-based methodology for collecting,
managing, analyzing, m...
Two Types of Spatial Data
• Raster - continuous data
– E.G., air photos, scanned maps, elevation layers
– Most remote sens...
Common Uses
• Analyzing potential environmental hazards
• Emergency services planning and routing
• Siting new facilities:...
Esri
• Environmental Systems Research Institute
• ESRI is now Esri
• Industry leader for GIS software
• Program is ArcGIS/...
Table of
contents that
shows the
doc’s layers.
The “data frame” that displays the spatial data.
Go to full
map
extent
Go to
previous
extent
Go to
next
extent
Select
features
(by hand)
Clear
selected
features
Select
ele...
Project:
Identify Washington County Parcels
Near Perennial Streams
Add Layers
• States (Census Bureau)
• Counties (Census Bureau)
• Hydrography (Area - National Hydrography
Dataset)
• Parce...
Click to add data
Coordinate Systems
• All your layers may not necessarily use the
same coordinate system.
– OK to draw and display
– Not OK...
View With All Layers Added
Zoomed to Washington County
State layer
renamed
Rename States Layer
Open the Attribute Table
Customizing Layers
Select by Attribute Tool
Selection is Highlighted
New Layer is Added to Map
Arkansas Only Remaining State
Changing the Display of Layers
• Change symbology/colors
• Turn individual layers on or off
• Change the display order
– L...
Change the Display Order
Change Symbology of Layers
Change Color of Streams
New Symbologies Displayed
Clip Streams to Washington County
Clip Tool
Access Clip in Geoprocessing Menu
Clip Tool Dialog Box
Clip Tool Progress Indicator
Clip Completed Indicator
Change Symbology of New
Clipped Hydro Layer
New Clipped File Looks Great!
Analysis
• We will find parcels that:
– Contain perennial streams
And note their status in the parcel layer’s attribute
ta...
Add New Columns to Attribute Table
Field Types
Whole Numbers
• Short Integer
(integers from -32,768
to 32,767)
• Long Integer
(integers from -
2,147,483,648 ...
Task: Select Parcels with a
Perennial Stream
View Selected in Attribute Table
View Selected Records Only
Task: Select Parcels in a “flood Zone”
Within a Distance of Perennial Streams
• Use the buffer tool to draw a “buffer zone...
Manage Files with ArcCatalog
• File manager for files used in ArcMap
• Best to manage moving pieces this way,
instead of W...
ArcCatalog Window
Use ArcCatalog to View Metadata
Share Maps and Layers with Packages
• Package up all the information used to create
a layer or map document for easy shari...
Share a Map Package
• To package up an entire map document for
sharing, use File | Create Map Package
ArcMap will force you to create some limited metadata before creating a
sharable package. Click OK.
Creating Packages
• Save the package as a file and share as you
usually would
• You must “validate” your package before
sa...
Validation
• Any errors need to be corrected. Click on any
error messages to see a help document.
• Warnings are warnings ...
What Else Can You Do with GIS?
• Join stats based on
geography (i.e., states)
to a states GIS layer and
view the data spat...
GIS Software at University of Arkansas
• Reference desk machine (version 10.1)
• Campus-wide license – administered by the...
Sources of GIS Data
• Search for selected base layers (reference
maps) from right within the application
• GeoStor (Arkans...
LibGuide
• The Maps, GIS and Remote Sensing LibGuide
can point you to:
– Information on how to get Esri software through
t...
Good luck!
Thank you!
Gis tutorial2013
Gis tutorial2013
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Gis tutorial2013
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Gis tutorial2013

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Gis tutorial2013

  1. 1. Intro to ArcGIS Yoast 2013
  2. 2. Overview • What is GIS? • Common uses • Software • Interface & navigation • Adding layers • Customizing & displaying layers • Select features by attribute • Select features by location • Buffer features tool • Layout view • Datums & projections • File management • Data sources
  3. 3. What is GIS? • Geographic Information Systems (GIS) is a computer-based methodology for collecting, managing, analyzing, modeling, and presenting geographic or spatial data. • Allows you to overlay datasets and query them in terms of their spatial relation to each other
  4. 4. Two Types of Spatial Data • Raster - continuous data – E.G., air photos, scanned maps, elevation layers – Most remote sensing data is raster data • Vector - discrete features – A layer comprised of individual points, lines or polygons (e.g., roads or states) – This presentation focuses on vector data
  5. 5. Common Uses • Analyzing potential environmental hazards • Emergency services planning and routing • Siting new facilities: – wind farms – power plants – vineyards • Identifying food deserts in urban areas • Much more!
  6. 6. Esri • Environmental Systems Research Institute • ESRI is now Esri • Industry leader for GIS software • Program is ArcGIS/ArcMap – Now up to version 10.1.
  7. 7. Table of contents that shows the doc’s layers. The “data frame” that displays the spatial data.
  8. 8. Go to full map extent Go to previous extent Go to next extent Select features (by hand) Clear selected features Select elements (to move or edit) Identify feature Add data
  9. 9. Project: Identify Washington County Parcels Near Perennial Streams
  10. 10. Add Layers • States (Census Bureau) • Counties (Census Bureau) • Hydrography (Area - National Hydrography Dataset) • Parcels (Washington County – Wash_Co_Data_Month_Year.zip) • Public lands (GeoStor)
  11. 11. Click to add data
  12. 12. Coordinate Systems • All your layers may not necessarily use the same coordinate system. – OK to draw and display – Not OK for detailed analysis (need to reproject layers – advanced step) • Data frame will use the coordinate system of the first layer that’s added – (displays feet, meters, or decimal degrees/lat/long of cursor location in bottom-right corner, depending on coordinate system)
  13. 13. View With All Layers Added
  14. 14. Zoomed to Washington County
  15. 15. State layer renamed Rename States Layer
  16. 16. Open the Attribute Table
  17. 17. Customizing Layers Select by Attribute Tool
  18. 18. Selection is Highlighted
  19. 19. New Layer is Added to Map
  20. 20. Arkansas Only Remaining State
  21. 21. Changing the Display of Layers • Change symbology/colors • Turn individual layers on or off • Change the display order – Layers on map display according to their order in the table of contents – Top layers may hide features in layers under them – Click & drag a layer in the table of contents to change its display order on the map
  22. 22. Change the Display Order
  23. 23. Change Symbology of Layers
  24. 24. Change Color of Streams
  25. 25. New Symbologies Displayed
  26. 26. Clip Streams to Washington County Clip Tool
  27. 27. Access Clip in Geoprocessing Menu
  28. 28. Clip Tool Dialog Box
  29. 29. Clip Tool Progress Indicator
  30. 30. Clip Completed Indicator
  31. 31. Change Symbology of New Clipped Hydro Layer
  32. 32. New Clipped File Looks Great!
  33. 33. Analysis • We will find parcels that: – Contain perennial streams And note their status in the parcel layer’s attribute table.
  34. 34. Add New Columns to Attribute Table
  35. 35. Field Types Whole Numbers • Short Integer (integers from -32,768 to 32,767) • Long Integer (integers from - 2,147,483,648 to 2,147,483,647) Decimals • Double (up to 6 decimal places) • Float (unlimited # of decimal places)
  36. 36. Task: Select Parcels with a Perennial Stream
  37. 37. View Selected in Attribute Table
  38. 38. View Selected Records Only
  39. 39. Task: Select Parcels in a “flood Zone” Within a Distance of Perennial Streams • Use the buffer tool to draw a “buffer zone” around specified features
  40. 40. Manage Files with ArcCatalog • File manager for files used in ArcMap • Best to manage moving pieces this way, instead of Windows Explorer
  41. 41. ArcCatalog Window
  42. 42. Use ArcCatalog to View Metadata
  43. 43. Share Maps and Layers with Packages • Package up all the information used to create a layer or map document for easy sharing by email, a shared drive on the LAN, etc. • Right-click a layer in the TOC and select “Create Layer Package”
  44. 44. Share a Map Package • To package up an entire map document for sharing, use File | Create Map Package
  45. 45. ArcMap will force you to create some limited metadata before creating a sharable package. Click OK.
  46. 46. Creating Packages • Save the package as a file and share as you usually would • You must “validate” your package before saving – Detects any errors that would impede sharing
  47. 47. Validation • Any errors need to be corrected. Click on any error messages to see a help document. • Warnings are warnings only – can go ahead and publish. • If no problems, the share button will become active.
  48. 48. What Else Can You Do with GIS? • Join stats based on geography (i.e., states) to a states GIS layer and view the data spatially – Excel, CSV, text formats • Create/digitize your own data • import GPS data • Analyze viewsheds and shadows • Use web map services for mashups in your own applications • Much more!
  49. 49. GIS Software at University of Arkansas • Reference desk machine (version 10.1) • Campus-wide license – administered by the Center for Advanced Spatial Technologies (CAST) • Free software
  50. 50. Sources of GIS Data • Search for selected base layers (reference maps) from right within the application • GeoStor (Arkansas state portal) • geo.data.gov (federal portal) • National Map (USGS) • TIGER/Census Shapefiles (reference layers – boundaries, roads)
  51. 51. LibGuide • The Maps, GIS and Remote Sensing LibGuide can point you to: – Information on how to get Esri software through the campus license – Resources for learning GIS – Sources of GIS data (spatial and attribute)
  52. 52. Good luck! Thank you!

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