I think I want more Data

I want to add more data

Focus more on data - Flush out what we want the end product to look like

Annotation vs geospatial data - importing rather than sketching layers - Raster/DEM - Lat/Long CSV file - uploading your won dataset and/or finding a dataset in living atlas

Features have attributes - a data table/tabular data - columns have fixed data types (a lot of them) - for example bikes

Types of data:

  • Vector: Difference between point, line, and polygon
  • Raster: an array of values that can be used
    • Single band
    • Multibands

How to add a new data layer: - Import point data from a csv, lat/long csv file - Raster/DEM - Importing or uploading a dataset vs finding a good dataset in living atlas

  • Facilities data (buildings)
  • DEM (expanded to the foothills)
  • Bike paths (a newly extended to roads version)
  • Bus stops (lat-long csv file. for when you get tired)

Esri ArcGIS Online Credits:

  • All ArcGIS Online accounts created under the UCSB site license are allocated 1000 service credits per license year.

  • Transactions: Some analysis operations use credits. For more information, visit Esri’s Understand Credits Page.

  • Manage your content: Periodically review and delete unnecessary content.

  • Data Stewardship: Objects stored in ArcGIS Online should be considered ephemeral. The content depends on your access to the UCSB Library’s Higher Education Site License.

Narrative

  • The story: we want to route a steep, safe bike ride off campus
  • Gather more data: we will add layers to our working map and save it in our own space (to review workshop 1).
    • Add DEM
    • Calculate slope from dem
    • Overlay slope onto lines (ie: edit attribute table)
    • Highlight steepest route (max slope)
    • Play with slider: Counts & Amounts
  • The layers: Basically the same layers as workshop 1, but with larger extents. ** DEM around campus ** Paths based on a provided and expanded extract from Open Street Maps ** Bike racks: A csv file hosted on ArcGIS Online that we will convert to a data layer (or a non-editable data layer that people will do a save-as on)
  • Outline of analysis ** Turn the DEM into a slope layer ** trace the inclines of the bike paths ** add bike racks to path interections *** we might need to buffer the bike racks to get them to intersect ** calculate the steepest route from the Library to a

Once your map has the slope raster and the road layer, go to raster analysis > Zonal Statistics as Table.

This is going to make a TABLE. Not a layer. Now we join the table back to the line file. Tools > Summarize data > Join Features Use the objectID. It might not be visible in the roads file.

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