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  • All fields: hydrologic
(126 results)



Display: 20

    • Selected analytical methods for well and aquifer evaluation

    • 1962; Groundwater -\- Analysis; Groundwater flow -\- Mathematical models; ISWS B-49; Walton, William C.; Wells
    • The practical application of selected analytical methods to well and aquifer evaluation problems in Illinois is described in this report. The subject matter includes formulas and methods used to quantitatively appraise the geohydrologic parameters...
    • Preliminary report on the ground-water resources of the Havana region in west central Illinois

    • 1965; Aquifer; Aquifers; Groundwater; Hydrogeology; ISWS COOP-3; Sankoty Sand aquifer; Walker, William H., Robert E. Bergstrom, and William C. Walton; Water quality
    • A large undeveloped ground-water reservoir underlies an area along the Illinois and Sangamon Rivers in west-central Illinois. The area is called the Havana region in this report.This report is based on data collected during the investigation and...
    • Fox Chain of Lakes investigation and water quality management plan

    • 1977; Bluff Lake (Upper Fox); Channel Lake; Fox Lake (Upper Fox); Grass Lake (Upper Fox); Hydrology; ISWS COOP-5; Kothandaraman, Veerasamy, Ralph L. Evans, Nani G. Bhowmik, John B. Stall, David L. Gross, Jerry A. Lineback, and Gary B. Dreher; Lake;...
    • This report is a cooperative project of the Illinois State Water Survey and StateGeological Survey. Part 1, prepared by the Geological Survey, discusses the geologic history and character of bottom sediments. Parts 2 and 3 were prepared by the...
    • Detecting drought conditions in Illinois

    • 1987; Changnon, Stanley A., Jr.; Crops and climate; Droughts; Droughts -\- Forecasting; ISWS C-169; Soil moisture; Stream measurements; Water levels
    • A major study of Illinois droughts was conducted to develop a basis for quantitative assessments of drought conditions in Illinois. Such information should aid decision making related to local and state actions to ameliorate the effects of future...
    • The 1988-1989 drought in Illinois: causes, dimensions, and impacts

    • 1992; Droughts; ISWS RR-121; Lamb, Peter J., ed.; Water-supply
    • The 1988-1989 drought was one of the most disastrous droughts in the history of the state. Hydrologic, meteorological, and climatological aspects of the 1988-1989 drought in Illinois are addressed. The drought is evaluated in terms of recipitation,...
    • The 1993 flood on the Mississippi River in Illinois

    • 1994; Bhowmik, Nani G., Andrew G. Buck, Stanley A. Changnon, Robert H. Dalton, Ali Durgunoglu, Misganaw Demissie, Arlan R. Juhl, H. Vernon Knapp, Kenneth E. Kunkel, Sally A. McConkey, Robert W. Scott, Krishan P. Singh, Ta-Wei David Soong, et al.;...
    • This report on the 1993 flood on the Mississippi River in Illinois and on the lower reaches of the Illinois River was prepared by the Illinois State Water Survey with assistance from the Illinois Department of Transportation/Division of Water...
    • Fox River streamflow assessment model: 1999 update to the hydrologic analysis

    • 1999; Blackberry Creek; Boone Creek; Ferson Creek; Hydrologic models; ISWS CR-649; Indian Creek (Lower Fox); Knapp, H. Vernon, and Michael W. Myers; Lake; Nippersink Creek (Upper Fox); Poplar Creek; Shabbona Lake; Somonauk Creek; Stream; Stream...
    • The Illinois Streamflow Assessment Model (ILSAM) was developed to provideneeded streamflow information to watershed managers and planners. This specialized software program was developed for use on a personal computer to provide estimates of the...
    • The Illinois River Decision Support System (ILRDSS)

    • 1999; Demissie, Misganaw, Yiping Guo, H. Vernon Knapp, and Nani G. Bhowmik; Hydrologic models; ISWS CR-648; Illinois River; Illinois Waterway; Reservoir; Stream; Water levels; Water quality management; Watersheds -\- Mathematical models
    • The Illinois River has become the focus of state and federal agencies interested in integrated management of watersheds. Issues related to habitat restoration, floodplain management, navigation, erosion and sedimentation, water quality, and point...
    • Hydrologic modeling of the Court Creek watershed

    • 2000; Borah, Deva K., and Maitreyee Bera; Court Creek; Hydrologic models; ISWS CR 2000-04; Stream
    • Flooding, upland soil and streambank erosion, sedimentation, and contamination of drinking water from agricultural chemicals (nutrients and pesticides/herbicides) are critical environmental problems in Illinois. Upland soil erosion causes loss of...
    • Streamflow assessment model for the Little Wabash River Watershed : hydrologic analysis

    • 2001; Auxier Creek; Big Muddy Creek; Borah Lake; CIPS Lake; Canal; East Fork Lake (ISWS - Richland County); Elm River; Forbes Lake; Fox River (Richland County); Goose Pond (Wayne County); Greendale Lake; Horse Creek; ISWS CR 2001-14; Illinois...
    • The Illinois Streamflow Assessment Model (ILSAM) is an analytical and information tool developed to predict the frequency of streamflows, and water use impacts on streamflows, for every stream in selected major watersheds in Illinois. The current...
    • Sedimentation survey of Highland Silver Lake, Madison County, Illinois

    • 2001; Bogner, William C.; ISWS CR 2001-05; Lake; Silver Lake
    • Sedimentation detracts from the use of any water supply lake by reducing lake depth and volume, with a reduction of reserve water supply capacity and possible burying of intake structures. Sedimentation of a reservoir is a natural process that can...
    • Sedimentation survey of Lake Decatur's Basin 6, Macon County, Illinois.

    • 2001; Bogner, William C.; ISWS CR 2001-07; Lake Decatur; Reservoir; Reservoir sedimentation; Sangamon River; Sedimentation analysis; Stream; Stream measurements
    • Sedimentation detracts from the use of any water supply lake by reducing lake depth and volume, with a reduction of reserve water supply capacity and possible burying of intake structures. Sedimentation of a reservoir is a natural process that can...
    • Watershed monitoring for the Lake Decatur Watershed, 1999-2000.

    • 2002; Big Creek (Upper Sangamon); Big Ditch; Camp Creek (Upper Sangamon); Canal; Friends Creek; Goose Creek (Upper Sangamon); ISWS CR 2002-01; Keefer, Laura and Misganaw Demissie; Long Creek (Upper Sangamon); Nitrates -\- Environmental aspects;...
    • Lake Decatur is the water supply reservoir for the City of Decatur. The reservoir was created in 1922 by constructing a dam to impound the flow of the Sangamon River. The dam was modified in 1956 to increase the maximum capacity of the lake to...
    • Watershed monitoring for the Lake Decatur Watershed, 1999-2000.

    • 2002; Big Creek (Upper Sangamon); Big Ditch; Camp Creek (Upper Sangamon); Canal; Friends Creek; Goose Creek (Upper Sangamon); ISWS CR 2002-01; Keefer, Laura and Misganaw Demissie; Long Creek (Upper Sangamon); Nitrates -\- Environmental aspects;...
    • Lake Decatur is the water supply reservoir for the City of Decatur. The reservoir was created in 1922 by constructing a dam to impound the flow of the Sangamon River. The dam was modified in 1956 to increase the maximum capacity of the lake to...
    • Sedimentation survey of Lake Decatur's Big and Sand Creek basins, Macon County, Illinois

    • 2002; Big Creek (Upper Sangamon); Bogner, William C.; ISWS CR 2002-09; Lake sediments -\- Measurement; Reservoir sedimentation; Sand Creek (Upper Sangamon); Stream
    • Sedimentation detracts from the use of any water-supply lake by reducing lake depth and volume, with a reduction of reserve water-supply capacity and possible burying of intake structures. Sedimentation of a reservoir is a natural process that can...

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