Science Source
Choi, Woonsup, Tareghian, Reza, Choi, Jinmu, Hwang, Chul‐sue
International Journal of Climatology
Published date November 25, 2013
International Journal of Climatology
Published date November 25, 2013
Geographically heterogeneous temporal trends of extreme precipitation in Wisconsin, USA during 1950–2006
- Examines temporal and spatial patterns of extreme precipitation in Wisconsin during 1950–2006
- Uses daily precipitation data created by researchers at the University of Wisconsin-Madison using spatial interpolation of weather stations data across the state to a grid mesh with a spatial resolution of 8 km
- Calculates—for extreme precipitation indices—the 99th, 95th, 90th, 85th, and 80th percentiles of daily total precipitation (>1 mm) in a year and the number of days per year with daily precipitation exceeding 10 mm, 20 mm, and 50 mm
- Conducts the Mann–Kendall test for trend, examined how geographical heterogeneity varied over time, and built quantile regression models for annual summer precipitation
- Finds the temporal trend of extreme precipitation varied widely across the state
- Finds the highest percentile index showed an increasing trend over the largest area, whereas indices of less extreme precipitation tended to generally decrease
- Finds extreme precipitation tended to show more dispersed and skewed spatial patterns than annual total precipitation
- Finds, overall, that indices related to frequency showed more similar spatial and temporal trends to total precipitation than magnitude indices
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