Nozomu Urahata and Kenji Okajima (2024) “EVALUATION OF THE EFFECT OF TURBID WATER IN CANALS ON UNDERWATER ULTRASONIC ROUGHNESS MEASUREMENTS”, GEOMATE Journal, 26(118), pp. 1–8. Available at: https://geomatejournal.com/geomate/article/view/4592 (Accessed: 11 October 2025).