Jozsef (Joe) Szilagyi

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Title Research Hydrologist
Address 625 Hardin Hall
3310 Holdrege Street
Lincoln NE
68583-0996
Phone 402-472-9667 & 402-472-3471
FAX 402-472-2946
E-mail jszilagyi1@unl.edu
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Joe Szilagyi is a research hydrologist and professor in the School of Natural Resources. He is associated with SNR's Water Faculty and has been at UNL since 1997.

His main research interests include the interaction of surface water and groundwater, hydrological forecasting, regional- to continental-scale analysis of the hydrologic cycle and the effect of climate change on it. One of his current research projects involves estimating watershed- to continental-scale evapotranspiration (ET) by standard meteorological measurements and 1-km resolution Moderate Resolution Imaging Spectroradiometer (MODIS) daytime land surface temperature data. Recent research involving estimating riparian ET from diurnal changes in the stream-flow rate and in the groundwater level are important to the state and nation. His work helps citizens, agricultural producers and decision makers understand how groundwater and surface water communicate with each other and how ET is distributed in space over the watershed, which helps in local and catchment-scale water management tasks and irrigation-impact studies.

He also has an example of his work in regional ET estimation with CREMAP in this website site's data section.

Drought Year (2002)
The distribution of ET over the Elkhorn watershed in a drought (2002) year.
Wet Year (2007)
The distribution of ET over the Elkhorn watershed in a wet (2007) year.
The distribution of ET over the Elkhorn watershed in a drought (2002) and in a wet (2007) year. Note how the range lands of the Sand Hills in the western part of the watershed become much drier in a drought year than the rest, mostly irrigated soybean and corn, of the catchment. Click on images to enlarge.

Selected Publications

Szilagyi, J., Zlotnik, V., Gates, J., Jozsa, J., 2011. Mapping mean annual groundwater recharge in the Nebraska Sand Hills, USA, Hydrogeology Journal, 19(8), 1503-1513, doi: 10.1007/s10040-011-0769-3.
Szilagyi, J., Jozsa, J., 2009. An evaporation estimation method based on the 2-D turbulent heat and vapor transport equations, Journal of Geophysical Research-Atmospheres, 114: D06101, doi:10.1029/2008JD010772.
Szilagyi, J., Jozsa, J., 2009. Complementary relationship of evaporation and the mean annual water-energy balance, Water Resources Research, 45, W09201, doi:10.1029/2009WR008129.

Educational Background

  • MS - Eotvos University, Hungary, Meteorology (1989)
  • MS - University of New Hampshire, Hydrology (1994)
  • PhD - University of California-Davis, Hydrologic Sciences (1997)

SNR Faculty Area(s)

Affiliations (index)

Notable Websites

Expertise

  • Hydrology - Watersheds
  • Watersheds - Hydrology

Areas of Interest (Keyword)

  • Evapotranspiration
  • Geographic Information System (GIS) - Hydrology
  • Geographic Information System (GIS) - Water Resources
  • Geology - Hydrogeology
  • Groundwater - Hydrogeology
  • Groundwater - Surface Water
  • Hydrogeology - AAGeneral
  • Hydrogeology - Groundwater
  • Hydrology - AAGeneral
  • Hydrology - GIS
  • Hydrology - Modeling
  • Hydrology - Springs
  • Physical Geography - Water Resources
  • Remote Sensing - Water Resources
  • Surface Water
  • Water - Cycle, Balance
  • Water - Geographic Information System (GIS)
  • Water - Hydrogeology
  • Water - Resources

Other Areas of Interest

Linear systems in hydrology; hydrological forecasting, flow routing; evaporation/ET; watershed hydrology; stream-aquifer interactions.

Currently this page only displays grants that were awarded on 1/1/2009 to the present. If a grant was awarded prior to 1/1/2009 and is still active, it will not be displayed on this page.

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Graduate Program(s) Master of Science with a Specialization in
  • Hydrologic Sciences
Doctor of Philosophy with a Specialization in
  • Hydrologic Sciences