Drone Flying, Southwest Montana Style

Jeremy Crowley describes flight planning for UAS high accuracy photogrammetric data collection using a DJI Phantom 3 and Phantom 4 Pro version 2 at the Bluebird Mill mining ruins near Rocker, southwest Montana.

Last fall I decided that using UAS would really add to my geologic field work. That was the easy part. I did make the step to buy a drone and ended up with both a DJI Air Mavic 2 and a DJI Phantom 4 Pro version 2. Although it’s great fun just to fly a drone – and the camera resolutions are of amazing quality even on the little Air Mavic 2 – there is so much more to UAS flying and collecting visual data. Probably the best place to start is to understand that in flying a drone, one can either do flying as a hobbyist or take the next step, and get certified as a FAA Remote Pilot (Part 107). I hadn’t initially thought much about getting certified as a remote Pilot in Command (PIC), because I thought I’d basically use my drones for geologic photo/video purposes. But it turns out that in my quest for drone information, I came across Jeremy Crowley from the Montana Bureau of Mines and Geology in Butte, Montana, who is an extremely knowledgeable UAS person. In talking to Jeremy and reading about his drone workshops and research, I realized that I did need to learn much more about even FAA regulations regarding UAS. So I started on the path to get my FAA Remote Pilot (Part 107) certificate by taking Jeremy’s workshop. For anyone interested in UAS, it’s a very worthwhile workshop, and as summarized by Jeremy, it goes as follows:

“The FAA Part 107 Remote UAS pilot license is required for anyone flying UAS as part of work/business/commercial operations. This workshop will prepare attendees to pass the exam to obtain an FAA Remote Pilot License (Part 107). Attendees will also get hands-on training on using a UAV to conduct an automated photogrammetry survey, collect high accuracy (cm level) ground control points and check points, then post-process the control points and create a 3D model, digital surface model, and hillshade of the survey area”.

From Jeremy Crowley’s UAS 2021 Workshop description, Montana Bureau of Mines and Geology

At this time in my UAS learning curve, what I can say is that by delving into material covered by the FAA Part 107 Remote UAS pilot certification process, I’ve learned so much that is really helpful for being a proficient PIC. I strongly recommend going through the certification process to anyone who is serious about flying a drone. And, oh yeah, I did pass the FAA Part 107 Remote UAS pilot certification a couple days ago! So – I’m looking forward to many days of being a remote PIC!

Jeremy Crowley, Montana Bureau Mines and Geology, starts the set-up for our Global Navigation Satellite Survey (GNSS) that we’ll use in collecting ground control and quality control points for our high accuracy photogrammetry survey.

SenseFly Drone aerobatics and oblique aerial photos

In all the bad press about drones, there are some good and exciting applications of this technology with the smaller, civilian-type drones. One application of interest to earth scientists is the ability to acquire high-resolution oblique aerial photos. One company, SenseFly, just released technology for this kind of drone application:

SenseFly, a Parrot company, releases its patent-pending technology for oblique images, a truly innovative way to enable its fixed-wing mapping professional drones to take extraordinary images without the use of a gimbal.

SenseFly’s civil drones eBee and swinglet CAM, both designed for mapping missions, are now also capable of quickly taking amazing oblique images to complement a mapping project or add additional documentation.

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Go to the Parrot News blog site for more information on the SenseFly technology.