An advanced weather radar network: The first line of defense against severe weather
Nov 17, 2021
“An instrument called Cheugugi was made in Seoul from iron for measuring rainfall. It measured one cheok and five chon (about 32 cm) deep and seven chon (about 15 cm) in diameter.” - May 8, 1441, 23rd year of King Sejong’s reign This is the first record of humanity’s first step in the scientific measurement of rainfall, as written in the Veritable Records of King Sejong on May 8, 1441. The cheugugi was similar to modern rain gauges except for the ways of communica