福岡県農業総合試験場研究報告14（1995） pp 54 - 56
福岡県における農業気象情報の利活用
第１報 アメダスデータのメシュ化による気象値の推定
田 中 浩 平
作物の生育予測，診断や気象災害の解析に用いるため，パーソナルコンピュータを利用して，アメダス観測データを３次メッシュ単位で展開し，メッシュ単位で県内各地の日別の気温，日射量，降水量を推定するシステムを導入し，実用的精度を明らかにした。日平均気温の推定誤差は日単位では０．６℃／日でやや大きかったが，旬及び月積算値では０．３℃／日に減少し実用上十分な精度が得られた。日射量と降水量の推定誤差は日単位では気温に比較して大きかったが，旬及び月積算値では誤差が減少し，推定精度の範囲内で生育予測や生育診断に有効利用できると考えられた。
［キーワード：アメダス，メッシュ，気温，降水量，日射量，推定誤差］
Studies on Application of Agricultural Meteorological Data in Fukuoka Prefecture 1. The Estimation of 1 km Grid Values of Meteorological Elements using GIS and AMeDAS Data. TANAKA Kohei (Fukuoka Agric. Res. Cent. , Chikushino, Fukuoka 818, Japan) Bull. Fukuoka Agic. Res. Cent. 14 : 54-56 (1995)
A personal computer system was developed to estimate the 1 km grid(mesh) values of temperature , solar radiation and precipitation in Fukuoka Prefecture using GIS(Geographic Information System) and AMeDAS(Automated Meteorological Data Acquisition System) data. With respect to every AMeDAS station, the values of three meteorological elements were estimated by the observed values at 3-5 surrounding AMeDAS stations, and then compared with those values actually observed there to clarify the estimation errors. Estimation errors was 0.6 ℃ for mean temperature based on averages of the day, but based on one month or ten-days, it was reduced to 0.3 ℃. The averages of estimation errors of solar radiation and precipitation were larger than in those of temperarure, but if based on a month or ten days, these errors were considered to be practically negligible. Therefore , these results suggest that the developed system could be effectively used for such purposes as crop growth prediction and diagnosis.
[Key words : AMeDAS, Mesh map, Air temperature , Solar radiation , Precipitation]
全文 pdf (440KB)