Browsing by Subject "mississippi river"

Now showing 1 - 3 of 3
  • Thumbnail Image
    Item
    A Flourometric Technique for Sampling in Large-River Ecosystems
    (Water Resources Research Center, University of Minnesota, 1971-06) Johann, D.R.; McNabb, C.D.; Miller, E.F.
    Boat-mounted equipment for detecting the movement of rhodamine WT was used in Pool 6 of the upper Mississippi Rover, between navigation dams at Trempealeau, Wisconsin and Winona, Minnesota, to develop a procedure for sampling on paths of turbulent flow in large-river ecosystems. A means of relating sampling points in space and time is described. The expression Cm = (c2 . n) -c1/n-1 where c1 and c2 are concentrations of suspended or dissolved materials on upstream and downstream transects and n is a measure of dilution, can be used to obtain the mean concentration of material in suspension or solution in the water between points that are separated by at least as much as 2400 meters. This procedure in combination with conventional sampling programs in quiet backwaters may allow for more rigorous analysis of large-river ecosystems than has been achieved.
  • Thumbnail Image
    Item
    Survey of Attitudes Towards the Mississippi River as a Total Resource in Minnesota
    (Water Resources Research Center, University of Minnesota, 1972-09) Baron, Norman J.; Cecil, E. James; Ludwig, James P.; Tideman, Philip L.
    A survey of the attitudes of Minnesotans toward the use, maintenance and development of the Mississippi River in Minnesota was conducted. Background information on the diverse physical nature of the project Universe (those 23 Minnesota counties which the River flows through or is adjacent to) was collected covering the topics of waterflow, soils, population change, changing riparian land use, and recreational opportunities. Great physical and cultural diversity was found in the project Universe. Attitudes of residents were measured by a 40 item mail questionnaire sent to 5,000 residents of the project Universe; 101 in-depth interviews were also conducted. Respondents provided data on their characteristics, evaluated the desirable and undesirable characteristics of the River, evaluated the role of media in providing them with environmental information, expressed attitudes toward the use of the River, how River pollution should be controlled and financed, and provided data on what aspects of their life styles they were and were not willing to change to improve environmental quality. Secondary students were also surveyed in a separate effort to quantify significant difference of attitudes held by youth and adults. Two significant findings were that Minnesotans do not desire to curtail their uses of energy to improve environmental quality, and the perceived present uses of the River are exactly opposite to the uses the public desires.
  • Thumbnail Image
    Item
    Urban Wilderness Canoe Adventures Evaluation: 2012
    (Center for Applied Research and Educational Improvement, 2012) Sheldon, Timothy; Daugherty, Martha
    The Urban Wilderness Canoe Adventures (UWCA) Program provides a continuum of experiences for youth and families that are designed to engage all participants in a life‐long relationship with the outdoors and also encourages environmental awareness and leadership development. The UWCA seeks to fill a gap in the outdoor industry by reaching, engaging, and serving underserved, low and middle income urban youth and families. Researchers from the University of Minnesota’s Center for Applied Research and Educational Improvement (CAREI) have collaborated with Wilderness Inquiry and its partners since spring 2010 to evaluate the UWCA. CAREI evaluators collected data from an array of sources in 2012. We reviewed more than 50 peer-reviewed journal articles, conducted in‐depth interviews with young adults with long term involvement, and analyzed the responses of more than 1,100 students, teachers, and youth leaders to prepare this report. The 2012 UWCA Evaluation investigated the outcomes of three UWCA activities this year: 1) The Minneapolis Public Schools’ Summer School Mississippi River trip; 2) Washburn High School’s at‐risk students’ involvement with one UWCA trip; and, 3) AVID student’s participation in three UWCA trips. Our findings consistently demonstrate that regardless of the specific program or modification the participants received numerous personal, social, and academic benefits through UWCA trip participation. Many of the variables that influenced these benefits have been identified during our data analyses. The research we initiated before the 2012 evaluation supports findings we observed in earlier evaluations, whether the data was collected from students, teachers, or former youth participants.