Ground Penetrating Radar Services (GPR)
Ground Penetrating Radar (GPR) is a fast, practical, non-destructive technology that allows accurate detection of objects below the turf.
For superintendents and sports turf managers, a GPR survey is a cost effective means to collect data and ‘view’ subsurface conditions – location and condition of existing drains, pipes and trenches, water-saturated areas and leaks, characteristics of mix layers, and other critical data for maintenance and operations.
As cited in TurfGrass Trends, “GPR has been used to monitor the movement of water through surface layers, detect perched water tables, and chart subsurface soil horizons and layers. GPR has been successfully used to determine the thickness of the sandy rooting mixture in a golf green, locate the drainage pipes, locate areas of surface compaction and areas of concentrated subsurface wetness.” The recent development of 3-D imaging software has turned effective troubleshooting and management of golf green drainage systems into a reality for superintendents, sports turf managers, and facility operators.
- Baseline Data: Establishes/verifies ‘as-builts’
- Soil/Ground Layers: Assesses compaction, sand mix/gravel layers, moisture levels
- Drainage/Irrigation: Determine pipe location, water flow, leaks, deterioration, blockage
- Geology and Hydrology: Voids, sinkholes, rock, water flow
GPR surveys can be used to monitor subsurface conditions over time and detect whether conditions have improved, deteriorated or stayed the same. This data enables managers to prioritize and determine the most appropriate, cost effective action. GPR surveys are a highly visual communication tool to use when working with facility owners and boards.