The models shown above are from Project 2 in BCT 420 “Designing in 3D CAD & BIM” and ECO 620 “Studies in BIM”, a project-based course that teaches Trimble SketchUp, Realworks and Autodesk Revit. In this project students are being asked to digitally design and then fabricate a “useful object” using any of these methods: wood model building, paper model building, casting, 3D printing, CNC cutting. Continue reading “BCT’s Design / Build Models – 2022 Edition”
Surveying a Retaining Wall
UMass BCT Graduate Student Brett Barnard can be seen here operating the Trimble TX8 3D Scanner with Senior Andrew Smith and Sophomore Leo Minniti to survey and analyze a retaining wall on the Amherst campus. They plan to scan the entire wall in both Fall and Spring to obtain multiple 3D point clouds of the area for surveying and mapping purposes. Continue reading “Surveying a Retaining Wall”
Validating Water Surface Elevation for a Citizen Science Project in New Hampshire
By Merritt E. Harlan
How and why lake volumes change over time remains a largely unknown question globally. Factors such as precipitation, water table height, evaporation, and human impacts such as lake level drawdown can impact lake volumes over time, potentially resulting in changes in water supply and lentic ecosystems. To learn more about changes in lake volumes at a global scale, the project “Lake Observations by Citizen Scientists and Satellites” (LOCSS) pairs satellite imagery, which can detect lake area over time, with simple lake gauges that everyday citizens can read and collect data from. With the changes in height read from the lake gauge paired with the changes in lake surface area, we can better assess changes in lake volume over time. Continue reading “Validating Water Surface Elevation for a Citizen Science Project in New Hampshire”
Surveying Instrumentation in Mangrove Forests in Puerto Rico
By Pedro I. Matos Llavona
It is well known that sea level is rising and will cause significant shoreline adjustments around the globe. This makes the art of measuring sea level a critical skill for coastal scientists. For precise and accurate measurements, not only it is necessary to understand the functionality of the instruments we use, but also the reference frame to which all our measurements are fixed to, better known as datums. Fortunately, high end technology such as Global Navigation Satellite Systems (GNSS) can help us measure elevation up to 2 cm precision. This high level of precision requires complex processes. Thankfully, there is instrumentation capable of reaching high precision within a short period of time – the Trimble® R10 GNSS system.
Continue reading “Surveying Instrumentation in Mangrove Forests in Puerto Rico”
Infrastructure is best surveyed from the air – and in infrared!
by Ryan Wicks
At the UMass Amherst campus we regularly use UAS to conduct surveys of key infrastructure; whether it be to monitor and document stages of new construction on campus or to survey and inspect existing infrastructure. One of our more recent additions to our array of capabilities is the capacity to develop thermal orthomosaics from long-wave infrared (LWIR) imagery. This can help us map heat sources and thermodynamic processes of buried infrastructure, or look at heat loss in structures.
Continue reading “Infrastructure is best surveyed from the air – and in infrared!”