UAV and LiDAR equipment
- DJI Matrice 350 UAV with Zenmuse L2 LiDAR: This aerial surveying package integrates a Light Detection and Ranging (LiDAR) sensor, a high-accuracy Inertial Measurement Unit (IMU), and a mapping camera on a powerful drone platform. This Uncrewed aerial vehicle (UAV) features up to 55 minutes of flight time, high-precision centimeter-level positioning via an integrated Real Time Kinematic (RTK) module, and advanced safety features like six-directional obstacle sensing. It provides high-precision geospatial data collection with remote control flight programming, effective vegetation penetration, colorized point cloud, and real-time monitoring during surveying.
- DJI Mavic 3M Multispectral Drone: This drone combines a 20MP RGB camera with four 5MP multispectral cameras (Green, Red, Red Edge, Near-Infrared) for capturing both visible and invisible light data in a single flight. Key features include up to 43 minutes of flight time, centimeter-level accuracy with an RTK module, and a sunlight sensor for data calibration.
- Geosun GS-130G: A SLAM (Simultaneous Localization and Mapping) handheld LiDAR scanning system for high-precision 3D data acquisition. Key specifications include up to 640,000 points per second, an effective range of 150m, and an absolute accuracy of ≤5cm. The system uses a combination of Global Navigation Satellite System(GNSS), Inertial Navigation Systems (INS), and LiDAR sensors, along with its proprietary SLAM algorithm, to create dense, accurate point clouds.
- DJI RTK3 Base Station: A multifunctional GNSS positioning station that provides centimeter-level accuracy for professional drone operations. It can be used in three modes: base station to broadcast corrections to multiple drones, relay station to extend communication range, and rover station for surveying.
- DJI Mavic Classic Drone: The DJI Mavic 3 Classic features a Hasselblad L2D-20c camera with a 4/3 CMOS sensor, capable of capturing 5.1K video and 20MP photos.
Soil and hydrologic monitoring equipment
Soil and hydrologic monitoring and METER equipment including:
- Terros-12: measures volumetric water content (VWC), soil temperature, and electrical conductivity (EC) simultaneously, using capacitance technology for accurate data in soils with minimal disturbance.
- Terros-21: Using dielectric permittivity of ceramic discs for accuracy, it measures how tightly water is held in soil, indicating availability to plants, alongside soil temperature, from near saturation to air-dry conditions (0 to -100,000 kPa).
- Atmos-41: a compact, all-in-one research-grade weather station designed for continuous environmental monitoring, integrating multiple sensors (air temperature, humidity, vapor pressure, atmospheric pressure, solar radiation, wind speed/direction, lightning, rain, electrical conductivity, battery) into one robust solar-powered unit
- Terros-32: a highly accurate soil tensiometer measuring soil water potential (tension) in wet conditions (up to -85 kPa) with an integrated temperature sensor
- Soil auguring and field sampling equipment.
Soil mechanics
The advanced soil mechanics research laboratory (Civil Engineering, Oliver H. Raymond Building, room C076) is used for conducting research on saturated and unsaturated soil samples. Soil testing:
- Measuring basic soil parameters like moisture content, Atterberg limits and soil texture
- Fully automated equipment for performing advanced shear strength and consolidation tests at strain levels ranging from 0.001% to 25%.
- Two automated triaxial testing systems
- One modified double-wall triaxial cell for unsaturated testing
- Two constant rate of strain (CRS) consolidation testing systems
- Hall effect small strain measurement transducers
Modeling software
The Surface Processing and Modeling lab (Kentucky Geological Survey, Mining and Mineral Resources Building, 3rd floor) is used for data processing and analysis.
- DJI Terra: Drone mapping and modeling software that transforms aerial data from DJI drones into 2D maps and 3D models. It supports various data types, including visible light, multispectral, and LiDAR, to generate photorealistic 3D models and true digital orthomosaic maps.
- DJI Modify: A 3D model editing software to clean, reclassify, and share point clouds and models.
- Agisoft Metashape: Photogrammetric processing software that transforms digital images to generate 3D models, dense point clouds, and orthomosaics.