In the field, Soil and Topography Information’s SIS (Soil Information System) utilizes two main methods for gathering data:
Surfer: using an ATV to traverse nearly the entire surface of the surveyed area, sensors are run over the top of the soil to gather detailed environmental data including electromagnetic conductivity and topographic information. Data collected from the surfer provide a high-resolution representation of soil variability that informs the next step of data collection.
Diver: Subsurface data collection targets are selected based on the information gathered with Surfer. The Diver sends a probe with multiple sensors into the soil to collect data to derive soil propert
ies including horizon depth, compaction, soil texture characteristics, and moisture holding capacity.
The Surfer and the Diver each record the sensor and GPS data digitally on a field computer, which displays their position, field boundary and other navigation aids.
Smart Data Filtering techniques ensure data quality and that enough field observations have been taken to create accurate soil maps. These checks eliminate costly return trips to remap a site, if there are problems with the data.