PostGIS: "Oh the Places You'll Index!"

Presented August 15th, 2019 at the PDX Postgres Users Group, Portland, Oregon.

International Urban Forestry Congress

Presented October 2nd, 2018 in Vancouver, B.C., Canada.

Leaflet and Spatial Data in R

Created for a quick introduction to Leaflet web mapping in R for colleagues.

Spatial Analytics in R

Created for a 1.5 hour presentation to the Portland State University chapter of the American Society for Photogrammetry and Remote Sensing (ASPRS).

3D LiDAR Pointcloud Tree

An interactive 3D model of a LiDAR pointcloud focusing on a single tree.

• Rotate: left click or one finger
• Zoom: mouse wheel or pinch
• Pan: right click or three fingers

Spatial Analytics in R (GIS in Action 2017)

A slight variation of the Spatial Analytics in R presentation, shortened to fit the time slot.

Maintaining Magnificence (Oregon Community Trees Conference 2016)

A 45min showcase of the data I have processed and the tools I have created to engage practitioners and community members with the Metro's urban forests.

Towards Systematic Prediction of Urban Heat Islands - International Botanical Congress 2017 (Shenzhen, China)

A presentation on the urban heat island methods I have developed during the course of my research. Presented in Shenzhen, China.

West Multnomah Soil and Water Conservation District: Keynote Address (2016)

My keynote address the West Multnomah Soil and Water Conservation District during their annual meeting (Portland, Oregon, 2016)

3D Urban Heat Model

An interactive 3D model of the urban heat island effect over Mount Tabor, Portland, Oregon.
Warning: May take a while to load on slow internet connections!

• Rotate: left click or one finger
• Zoom: mouse wheel or pinch
• Pan: right click or three fingers

State of the Urban Forest - Portland

A simple interactive map breaking down the total canopy, % evergreen, and % deciduous by neighborhood in Portland, Oregon. Still a work in progress.

Web scraping from R: Purple Air Particulate Matter

A quick and casual analysis done for a friend to show how simple it is to scrape air quality data using R. Document created in R Markdown.

Web scraping from R: Little Library Locations

Creating usable spatial data of Little Library locations via web scraping in R. Document created in R Markdown.

Web scraping from R: Public Stairways

Scraping online community-gathered public stairway information via R for use in a GIS. Document created in R Markdown.

Eagle Creek: Vegetation Changes

An interactive map showing the changes in vegetation since the Eagle Creek Wilderness Area fires in the Columbia Gorge, late summer 2017.