Package: ClimGen

Daily weather data are needed for many applications such as design of hydraulic structures, studies in watershed hydrology, determination of evaporation, assessment of the fate of pollutants in soils, and execution of weather driven crop simulation models.

Many applications require long periods of daily weather data to account for environmental variability. These data usually include total solar radiation, maximum and minimum temperature, rainfall, wind-run, and some measurement of water vapor in the air (Acock and Acock, 1991). In many agricultural areas, such data are either incomplete or not readily available. Records may be of insufficient length, or only monthly summaries may be available. Therefore, it is desirable to generate sythetic daily weather data to meet such needs. Reliable generated daily weather data must have similar statistical characteristics as actual weather data for a given area.