Browsing by Subject "surface water"

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    Bulletin No. 35. The Lakes of Minnesota Their Origin and Classification
    (Minnesota Geological Survey, 1952) Zumberge, James H.
    The most distinctive features of the surface of Minnesota are the thousands of lakes scattered irregularly over the state. Even casual observation reveals the fact that these lakes vary greatly in their character. This means that they have been formed in different ways closely related to the geologic history of the region. There are scattered references to the origin of specific lakes particularly in the Annual Reports and the volumes of the Final Reports of the Geological and Natural History Survey of Minnesota. There has been, however, a lack of any single systematic treatment of the geologic factors involved in the formation of the lakes. It is evident that such a geologic basis is desirable for all scientific and practical work on the lakes which form such a valuable resource. For this reason Dr. Zumberge was supported in his field work by funds allotted by the University of Minnesota to the Minnesota Geological Survey, a unit in the College of Science, Literature, and the Arts. Appreciation is due Dr. Zumberge for his painstaking work, particularly in revising his doctoral thesis to make it into a bulletin for the Geological Survey series - a task performed without remuneration. The Director also wishes to express his thanks to all who helped Dr. Zumberge in his work.
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    Characterization of streams and rivers in the Minnesota River Basin Critical Observatory: water chemistry and biological field collections, 2013-2016
    (2017-09-06) Dolph, Christine, L.; Hansen, Amy, T.; Kemmitt, Katie, L.; Janke, Ben; Rorer, Michelle; Winikoff, Sarah; Baker, Anna; Boardman, Evelyn; Finlay, Jacques, C.; dolph008@umn.edu; Dolph, Christine, L.
    This dataset was collected to inform the Water, Sustainability and Climate Minnesota River Basin Observatory, and was supported by the National Science Foundation under Grant No. 1209402 Water, Sustainability and Climate (WSC) – Category 2, Collaborative: Climate and human dynamics as amplifiers of natural change: a framework for vulnerability assessment and mitigation planning. The dataset contains point locations, watershed areas and water quality information for 231 ditch, stream, river and wetland sites located in the Le Sueur River, Chippewa River, Cottonwood River, Cannon River, Wantonwan River and Blue Earth River basins of Minnesota. Study sites ranged in size from 1st order ditches and streams to an 8th order river. Each of these sites was sampled at least once between 2013-2016 (most sites were sampled multiple times) for one or more of the following parameters: 1) water chemistry (total dissolved nitrogen, nitrate-N, nitrite-N, ammonium-N, particulate nitrogen, soluble reactive phosphorus, total dissolved phosphorus, particulate phosphorus, total phosphorus, dissolved organic carbon, dissolved inorganic carbon, particulate carbon, chlorophyll a, total suspended solids, volatile suspended solids, delta-H-2 and delta-O-18 stable isotopes of site water, specific UV absorbance (SUVA) of site water, fluorescence index (FI) of site water); 2) stable isotopes (delta-C-13, delta-N-15, delta-H-2) of invertebrate consumers, particulate carbon and potential food sources; 3) denitrification rates and characteristics of benthic sediment in agricultural drainage ditches; and 4) stream discharge. This dataset also includes spatial data files containing study site locations and watershed areas delineated for each site.
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    Coastal Area Impervious Surface Assessment.
    (Duluth, MN: Center for Community and Regional Research, University of Minnesota at Duluth., 2005) Stark, Stacey L; Schomberg, Jesse
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    Computer Programs in Hydrology
    (Water Resources Research Center, University of Minnesota, 1972-01) Bowers, C. Edward; Larson, Steven P.; Pabst, Arthur
    Many computer programs in the field of hydrology are developed each year and are playing an increasingly important part in both research and design activities in hydrology. Many of these programs are available for use by other agencies, organizations, and individuals. The study of which this report is a part was undertaken to review available programs in hydrology and to provide information on representative programs. Information ranging from the title only of the program to listings, source decks, and documentation was reviewed for about 200 programs. Of these, 25 were selected for operation on a CDC 6600 computer and/or preparation of an abstract. The report discusses problems associated with adapting programs to a given computer and with understanding the technical procedure on which the program was based.