A research group of the resource development institute of the Faculty of Resources Science at Kim Il Sung University has devised a new sonic prospecting method to help the field of land management to lay a foundation for putting water control on a scientific basis.
The DPRK has many rivers, lakes and reservoirs and long coastlines, so it needs to improve water control in order to minimize damage caused by natural disasters.
The institute has worked on a project to develop an underwater ultrasonic radar capable of simultaneously measuring and analyzing the depth and bottom materials of rivers and lakes.
The researchers designed and manufactured the components of the radar in such a rational way as to conduct continuous transmitting while ensuring its accuracy and speed. With this breakthrough, they went on to develop programs for identifying the bottom materials and estimating the thickness of sediment, making it possible to conduct the control of the radar and the collection, processing and analysis of data in a comprehensive way.
Ri Song Hyok, a section chief of the institute, says the new method helps estimate the pass capacities of rivers, lakes and reservoirs rapidly and accurately and establish a unified irrigation control system nationwide and provide a scientific guarantee for the construction of hydraulic structures.
The application of the method to major rivers and lakes showed that it is expected to correctly survey the depth of water and the distribution of sediments and significantly reduce the manpower, materials, time and cost needed for surveying.
Ko Chol Hwa
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