Development of grid square air temperature and precipitation data compiled from observed, forecasted, and climatic normal data

作者：Hiroyuki Ohno, Kaori Sasaki, Genji Ohara, Kou Nakazono · 发表于：Climate in Biosphere · 年份：2016 · DOI：10.2480/cib.j-16-028 · 被引用次数：231 · 研究领域：Climate variability and models、Meteorological Phenomena and Simulations、Cryospheric studies and observations

We developed a method for determining nationwide 1 km-grid square values of daily mean, maximum and minimum air temperature, and daily precipitation in Japan.The data were obtained using the JMA's nationwide observations, numerical forecasts, and climatic normal values.RMSE values for these elements in the past were 0.66 ℃, 0.98 ℃, 1.10 ℃, and 5.9 mm/day, while those for one-day future were 1.18 ℃, 1.65 ℃, 2.00 ℃, and 11.0 mm/day, respectively.The improvement in accuracy by introducing the forecasts was recognized even for values six-day future, though errors tended to increase with forecast range.The data are intended for use in the management of currently growing crops with a combination of crop models.