[Case Study] G3100 RTK Observation, Iwate University Faculty of Agriculture, Symbiotic Environment Course

We will introduce a case that demonstrates the synergistic effect of mobility and high speed, resulting in responsive observation work.

We would like to introduce the G3100 RTK observation case from the Coexistence Environment Course at Iwate University Faculty of Agriculture. During the Great East Japan Earthquake on March 11, 2011, tsunamis surged in from both the Hirota Bay side and the Pacific Ocean side. Due to ground subsidence, seawater that flooded the reclaimed land could not be drained, and the Hirota Town area became an isolated island for several days. Investigating the subsidence situation became urgent for the restoration of agricultural land and reclaimed land. As a result, the efficiency of the investigation has been improved through RTK positioning using GNSS surveying equipment, with the PENTAX G3100, compatible with GLONASS and GPS, actively utilized on-site. [Case Overview] ■ Issues - Aerial photography from above cannot accurately assess the amount of subsidence. - There are still many areas with a large amount of debris remaining, and due to the wide range of the survey area, efficiency cannot be improved with leveling and total station surveying. ■ Results - The compact and lightweight design, along with being cable-free, allows for good mobility and enables quick successive RTK positioning. - Data transmission from the reference station to the mobile station can be done stress-free with a high-speed wireless modem, allowing for focused observation work. *For more details, please refer to the PDF document or feel free to contact us.

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