Benjamin Crosby

Department of Geosciences

Idaho State University

Professor and Chair; Geomorphology

Workshop Participant, Website Contributor

Website Content Contributions

Course Modules (5)

Unit 1: GPS/GNSS Fundamentals part of High Precision Positioning with Static and Kinematic GPS
The constellations of satellites orbiting our planet enable high-precision positioning not just for consumer or survey applications but also for geoscience research such as detecting plate motions, landslide ...

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Unit 2: Kinematic GPS/GNSS Methods part of High Precision Positioning with Static and Kinematic GPS
The application of Global Navigation Satellite Systems (GNSS) in the earth sciences has become commonplace. GNSS data can be collected rapidly and compared in common reference frames. Real-time kinematic (RTK) GNSS ...

On the Cutting Edge Exemplary Collection This activity is part of the On the Cutting Edge Exemplary Teaching Activities collection.
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GETSI Developed This material was developed and reviewed through the GETSI curricular materials development process.
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Unit 2.2: Change Detection with Kinematic GPS/GNSS part of High Precision Positioning with Static and Kinematic GPS
Though it may be difficult to perceive, landscapes are constantly changing form and position. High-precision GNSS is one of a handful of techniques capable of quantifying these changes and is a key component of ...

GETSI Developed This material was developed and reviewed through the GETSI curricular materials development process.
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Unit 3: Static GPS/GNSS Methods part of High Precision Positioning with Static and Kinematic GPS
The application of Global Navigation Satellite Systems (GNSS) in the earth sciences has become commonplace. GNSS data can produce high-accuracy, high-resolution measurements in common reference frames. Static GNSS ...

GETSI Developed This material was developed and reviewed through the GETSI curricular materials development process.
Learn more about this review process.

Unit 2.1: Measuring Topography with Kinematic GPS/GNSS part of High Precision Positioning with Static and Kinematic GPS
Kinematic GNSS surveys can provide a rapid means of collecting widely distributed, high-precision topographic data. The advantages of this technique over optical instruments such as a total station are that it only ...

GETSI Developed This material was developed and reviewed through the GETSI curricular materials development process.
Learn more about this review process.

Activities (2)

Hydraulic Geometry in the Greys River Watershed part of Geomorphology:Activities
Following lectures regarding catchment hydrology and fluvial processes, students complete a two day field analysis of a watershed from headwaters to outlet, measuring fluvial parameters such as channel geometry, ...

Dam the Wilderness: Building "Green Hydropower" on Big Creek part of Geomorphology:Activities
Students exercise knowledge of how dams impact physical and biological systems to try to design a dam that minimizes its impacts while still meeting power production and water diversion requirements.

Course (1)

Geomorphology part of Course Design:Goals Database
Course introduces surface processes to students through process-based lectures and discussion, laboratories and field excursions.

Conference Presentations (3)

High Precision Positioning in Field Courses: Applying GNSS to geologic questions part of Earth Educators Rendezvous:Rendezvous 2019:Program:Poster Sessions:Wednesday
GPS/GNSS enabled consumer grade positioning devices are now super accessible to both geologic field research and education. These devices geotag images, digital field book entries or measurements but the positions ...

Context matters: Designing data-rich geodesy teaching materials that get used part of Earth Educators Rendezvous:Rendezvous 2019:Program:Poster Sessions:Wednesday
GETSI (Geodesy Tools for Societal Issues) project is developing modules that allow undergraduate students to engage in geodetic data analysis relevant to societally important topics of natural hazards, water ...

Data-rich societally-situated undergraduate teaching resources and instructor professional development for geoscience classrooms and field courses part of Earth Educators Rendezvous:Previous Rendezvous:Rendezvous 2018:Program:Poster Sessions:Wednesday
The NSF-funded GEodesy Tools for Societal Issues (GETSI) project is developing teaching resources and instructor professional development opportunities that emphasize a broad range of geodetic methods and data ...

Other Contributions (4)

River Knickpoints: Distinguishing Between Mobile and Fixed Steps in River Channels part of Vignettes:Vignette Collection
Benjamin Crosby Idaho State University Location Continent: South Pacific Country: New Zealand State/Province: North Island City/Town: Gisborne UTM coordinates and datum: none Setting Climate Setting: Humid ...

Benjamin Crosby: Using High Precision Positioning with Static and Kinematic GPS/GNSS in GEOL 4450/5550 Field Geology at Idaho State University part of High Precision Positioning with Static and Kinematic GPS
Most module units were tested over a jam-packed, 2-day undergraduate field geology course in central Idaho. Fitting most module units into such a short window is not recommended. The final assessment was a change detection exercise using a leveling line across an active normal fault (the Lost River Fault, home of the Borah Peak earthquake event in 1983). The results were stunning and intriguing for students and professors alike.

Benjamin Crosby: Using High Precision Positioning with Static and Kinematic GPS/GNSS in GEOL 4407: GPS Applications in Research at Idaho State University part of High Precision Positioning with Static and Kinematic GPS
I taught two, three-hour labs focused on Kinematic GNSS/GPS for this in-semester GNSS/GPS focused course. My two labs were about two-thirds of the way through the semester so students already had a good grasp of GNSS tools. I went straight to Units 2, 2.1 and 2.2 and the students were well prepared to learn this material. Units 2.1 and 2.2 were outdoor-oriented, doable withing the time frame successful from a student learning perspective and let to significant student enthusiasm.

Benjamin Crosby: Using High Precision Positioning with Static and Kinematic GPS/GNSS in GEOL 3315: Evolution of the Earth's Surface at Idaho State University part of High Precision Positioning with Static and Kinematic GPS
The module is used sparingly in this course to introduce students to mass movement processes and how we can track their creeping movement with geotechnologies. The experience is broken down into two sessions: a three hour lecture/lab introducing the students to GPS/GNSS followed by a one-day field trip to a field site with an actively deforming landslide. All data processing is done by the instructor and is delivered to the students as a completed product. They use these results to evaluate change in terms of accuracy and precision as well as geomorphically.