JJ Bjordahl
Goat Rocks Wilderness, North of Old Snowy, South of Packwood Glacier, looking Southwest toward Loowit (Mt. St. Helens).
BT-I-310.pdfAbove is a Public Land Corner Maintenance Report and is among the first public records with my name attached for work performed under the County Surveyor.
Above is a Google Sheet authored to replace three ring binders, Thomas Guides and handheld GPS for field staff once they received smart phones. It's a clunky solution but better than the prior alternatives. A Public Land Corner (PLC) number is typed into the sheet and relevant information is pulled and displayed.
Asset Mapping and Project Tracking Samples Using Google Maps
Looking for Giants (Yggdrasil in a Haystack), LiDAR Project
Pictured above: One of the trees I sought in the Looking for Giants (Yggdrasil in a Haystack) project- some work samples shown below. The project was developing GIS methods for locating individual mature / ancient / old growth trees and thus protectable habitats, using public LiDAR data.
From Looking for Giants (Yggdrasil in a Haystack): Above is a animated GIF showing visualized samples of Watershed Delineation, Canopy Height Modeling, Canopy Density Calculations, Tree Crown Delineation, Lidar Extraction & 3D Modelling. Fall 2020
Canyoneering Cartography, Utah & Arizona
Buckskin Gulch & Paria Canyon, Winter 19/20.
"Buckskin is the longest slot canyon in the U.S., and some consider it the longest in the world. It's also one of the most dangerous. " - Jennifer Billock (Smithsonian)
3D Interactive Modelling
Wy'East (Mt. Hood) topography cookie-cut to the Timberline Trail. From a Digital Elevation Model (DEM) to a 3D object. (Click image to navigate)
Topographic Visualization
Tahoma's (Mt. Rainier) Wonderland Trail stylized.
Jobsite & Asset Cartography
A job site map for a project involving Metro and Multnomah County, 48"x36"
Asset mapping for projects involving City of Portland's Water Bureau and Multnomah County, 48"x36"
Wildlife Habitat Data Visualization and Analysis
Remote Camera Trap Sites in the Mt. Hood National Forest & A Sierra Nevada Red Fox (Vulpes vulpes nector) Site Suitability Assessment with Locations of Positive Identifications, 2010-2017. For Cascadia Wild & USFS.
Popular Trails Stylized
Popular NW circumnavigation trails, a project in progress.