WATER QUALITY-MEASURING APPARATUS AND WATER QUALITY DISPLAY METHOD, AND MEMORY MEDIUM WITH WATER QUALITY DISPLAY PROGRAM RECORDED

摘要

PROBLEM TO BE SOLVED: To make easily comparable and checkable measured values of water quality at a plurality of points of water depth by displaying measured values of the water quality at a plurality of points of water depth separately by display colors corresponding to sized of the measured values. SOLUTION: A water quality is measured, e.g. every two seconds while a water quality analyzer 3 is suspended down perpendicularly from a water face or pulled up towards the water face. Measured values are stored together with water depths measured by a water depth sensor 3e and position information of each measurement point obtained from a GPS receiver 5 into a memory part M. An operational process part 6 rearranges the water quality data on the basis of the position information and water depths, interpolates the data by connecting the data linearly, averages a polygonal line L of the interpolated water quality data at 1 m intervals, thereby obtaining a maximum and a minimum values of the measured values, and separates from the minimum values of the maximum value stepwise by colors. Then, a color corresponding to a size of the measured value of each water depth is set and a display color for each water depth is determined, and a display table of every measurement point of the water depth is determined, which are then displayed simultaneously to one display part 6a.