Raindrops - Uteki

Japanese: 雨滴 - うてき

Also called raindrops. Cloud droplets with a radius of 100 μm or more. Drizzle raindrops are 0.5 mm or less in diameter, normal raindrops are 1 to 2 mm in diameter, and large thunderstorm raindrops are about 3 mm in diameter. The largest raindrop observed in Tokyo was about 0.2 g, and if spherical it would be 7 mm in diameter, but normally raindrops over 0.5 mm become ellipsoids that are squashed vertically, and when they grow larger they split up, so there are almost no raindrops with a diameter of 5 mm or more. Small ones fall at a speed of 2 m per second, large ones at 10 m, and usually 4 to 6 m.
→ Related topics Rain | Ice crystal theory

Source : Heibonsha Encyclopedia About MyPedia Information

Japanese:

雨粒(あまつぶ)とも。半径100μm以上の雲粒。霧雨の雨滴は直径0.5mm以下，普通の雨は直径１〜2mm，雷雨の大粒の雨は直径3mmぐらい。東京で観測した最大の雨滴は約0.2gで，球形ならば直径7mmだが，通常雨滴は0.5mm以上になると上下に押しつぶされた楕円体になり，大きくなると分裂して直径5mm以上のものはほとんどない。落下速度は小粒なもので毎秒2m，大粒は10m，通常４〜6m。
→関連項目雨｜氷晶説

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