Exercise 3 - Plan your UAV-based data acquisition survey#
It is now up to you to acquire your own data in the field. As discussed in previous sessions, the success of a data acquisition campaign depends greatly on survey planning.
The focus of this session is to plan and prepare everything that is needed for a UAV-based acquisition survey.
The well-known riverbed outcrop in Todalen is missing in the Svalbox DOM database.
You need to work in pairs to create an acquisition survey that will gather the most accurate data possible from this location in order to produce a digital outcrop model.
Each group will have the following equipment:
1 UAV (to choose between: DJI Mavic Mini 2, DJI Mavic 2 Air, DJI Mavic 2 Pro, DJI Phantom)
3 batteries per group
To design your flight plan and focus on the outcrop, take advantage of online resources. The AG-222 Compendium provides an extensive list of datasets and online resources that can be helpful to you.
Questions to ask yourself while planning a UAV acquisition survey
What is the (geological) interest/purpose of the DOM?
What factors should you consider before acquiring the data? (e.g. scale, resolution, precision requirements?)
What resources (e.g. batteries) do I have?
What limitations are present and what should I expect?
What flight pattern will I follow?
What camera timelapse will I use?
When are the best light conditions during the day? Should I expect many shadows in the outcrop?
What weaknesses does the acquisition survey have?
Equipment and software check#
Make sure that all your batteries are charged, memory card empty, you have all software updates, etc.
Pre-flight check list#
At the very least, the following information needs to be completed before going to the field.
crew: pilot: pilot_license: co-pilot: co-pilot_license: visual_observer1: visual_observer1_license: flight: date: # in DD/MM/YYYY location: # Where do you find your outcrop target? land: # PICK: Albert I Land / Andrée Land / Bünsow Land / Dickson Land / Haakon VII Land / Heer Land / James I Land / Nathorst Land / Nordenskiöld Land / Ny-Friesland / Olav V Land / Oscar II Land / Sabine Land / Sørkapp Land / Torell Land / Wedel Jarlsberg Land / Gustav Adolf Land / Gustav V Land / Orvin Land island: # PICK: Hopen / Spitsbergen / Kong Karls Land / Edgeøya / Barentsøya / Tusenøyane / Nordaustlandet / Kvitøya / Prins Karls Forland / Bjørnøya / Other flight_description: # Add a brief description of flight objectives uav: uav_id: uav_model: # brand and model of the UAV uav_insurance: documentation: documentation: # Additional authorisations (if required) weather_info: # to be filled in the field cloud_cover: # % of cloud cover temperature: # in degrees Celsius wind_direction: wind_speed: # in m/s visibility: # in m precipitation: # yes/no
Now you are ready to fly. Enjoy your flight, and always fly safely and considerately!