Precipitation-type forecasting is the determination of when and where particular types of precipitation (e.g., snow, rain, ice pellets, freezing rain) will occur during a forecast period. Although much is already known about the physical processes that determine the type of precipitation that reaches the ground, these forecasts are very challenging for most forecasters because of inadequate atm...

In the Midwest, signi cant interannual to decadal variations in precipitation and stream ow have been observed over the latter part of this century. Yet in studies of precipitation frequency, engineers and hydrologists assume that natural climate variability does not a ect the probability distribution of extreme precipitation. A regional approach is used to test this assumption for extreme prec...

in this research, the daily precipitation data of 1437 synoptic, climatic and rain gauging stations of iran in the time interval 1961- 2004 (equal to 15705 days) was utilized. using kriging geostatistics method, the data were interpolated on the pixels of 15 *15km2, so as an array to the dimension of 15705 * 7187 was formed. to identify the fittest distribution of the days with over 5.0mm preci...

characteristics of precipitation and the regionalization major role in the efficient use of water resources and soil and management of environmental hazards. regionalization of rainfall can help to better use of water resources and to correct manage of environmental hazards. according to the analysis of climate phenomena such as precipitation, all data should be related to a homogeneous region,...

This paper introduces two parsimonious models for predicting runoff for ungauged basins from the observed river flow data in gauged basins and precipitation data from rain gauging stations in the same area. The models assume the runoff is related to the precipitation subject to variance of drainage basins. The runoff can be modeled as a function of precipitation and parameters determined by bas...

Knowledge of the spatial and temporal distribution of precipitation is of key importance for planning a wide range of socio-economic activities such as agriculture, livestock grazing, energy generation, etc. The availability of accurate and consistent precipitation data is then paramount for the proper assessment of such activities. However, traditional rain gauge measurements are relatively sc...

Using measurements from the national network of 12 weather radar stations for the 11-year period 2000–2010, we investigate the large-scale spatio-temporal variability of precipitation over Sweden. These statistics provide useful information to evaluate regional climate models as well as for hydrology and energy applications. A strict quality control is applied to filter out noise and artifacts ...