Ключевые слова: centimeter, color image, day, deep, flood, gauge, graph, high tide, high water, highwater, instrument of measurement, lake, level, leveling board, low, low water, measuring, metal, meter, new, nobody, one object, outdoors, pole, river, ruler, scale, sea, single object, sparse, steel, striped, sunlight, surface level, vertical, water, water gauge, water level indicator, water leveling board, watergauge, watermark,