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Full-Text Articles in Social and Behavioral Sciences
Climate Change And Nighttime Heat Stress: Tales Of Two Cities In The U.S. Midwest, Woonsup Choi
Climate Change And Nighttime Heat Stress: Tales Of Two Cities In The U.S. Midwest, Woonsup Choi
Geography Faculty Articles
This study explores nighttime heat stress in two Midwestern regions in the United States, encompassing the cities of Minneapolis and Milwaukee. Daily minimum temperature data were obtained from the MACAv2-METDATA dataset at a 4-km resolution. Data were downloaded both for the historical (1950- 2005) and RCP (Representative Concentration Pathways) 4.5 (2006-2099) simulations from 11 global climate models. MODIS land cover data at a 5'x5' resolution were used to delineate urban and non-urban areas. Heat stress was indicated by the occurrence of hot nights in two ways. First, the number of days with daily minimum temperatures above 300 K (27°C) was …
Meteorological And Streamflow Droughts: Characteristics, Trends And Propagation In The Milwaukee River Basin, Woonsup Choi, Hi-Ryong Byun, Claudio Cassardo, Jinmu Choi
Meteorological And Streamflow Droughts: Characteristics, Trends And Propagation In The Milwaukee River Basin, Woonsup Choi, Hi-Ryong Byun, Claudio Cassardo, Jinmu Choi
Geography Faculty Articles
This study examined meteorological and streamflow droughts for the period 1951-2006 using the Milwaukee River basin in Wisconsin as the study area in an effort to improve the understanding of drought propagation. Specifically, this study aimed to answer the following research questions: (1) What are the temporal trends of meteorological and streamflow droughts identified by drought indicators? (2) How do the drought indicators manifest drought propagation? Meteorological droughts were identified using the Effective Drought Index (EDI), and streamflow droughts were identified using a threshold-level approach. The intensity and duration of both types of drought were found to have decreased over …
Effects Of Urban Imperviousness Scenarios On Simulated Storm Flow, Feng Pen, Woonsup Choi, Jinmu Choi
Effects Of Urban Imperviousness Scenarios On Simulated Storm Flow, Feng Pen, Woonsup Choi, Jinmu Choi
Geography Faculty Articles
The amount and distribution of impervious surfaces are important input parameters of hydrological models, especially in highly urbanized basins. This study tests three different methods to input impervious surface area information to a semi-distributed hydrological model in order to examine their effects on storm flow. The three methods being evaluated include: (1) a constant value for impervious surfaces in the entire urban area, (2) constant values of imperviousness for commercial and residential land uses, respectively, and (3) different imperviousness for the residential land use in each subbasin. Storm flow of the Milwaukee River Basin in southeastern Wisconsin (USA) was modeled …