using usgs stream-flow data to develop quantitative skills in introductory-level geology classes ben...
DESCRIPTION
Materials Streamflow data - Topographic maps Graph paper or access to MS ExcelTRANSCRIPT
Using USGS Stream-Flow Data to Develop Quantitative Skills in
Introductory-Level Geology Classes
Ben LaabsDepartment of Geological Sciences
SUNY Geneseo
*Activity developed at Gustavus Adolphus College and SUNY Geneseo*
Goals
• Determine the height (ft asl) of the 100-year flood on a river in your town, establish a flood-hazard zone on a topographic map
• Recognize the relationship of flood discharge and stage
• Quantitative-skill development– Data collection, manipulation and analysis– Calculating flood recurrence interval– “Assessment” of error in estimating 100-year flood
• Develop a fundamental understanding of MS Excel
Materials
• Streamflow data - http://water.usgs.gov• Topographic maps• Graph paper or access to MS Excel
Advantages
• Designed for two-hour lab, but could be made longer or assigned as a homework assignment
• Study of a real, familiar setting– Could be applied to any “non-dammed” river with two
or more USGS gaging stations• Group activity, engages students• Could be used in any introductory-level class
(Physical Geology, Environmental, Natural Disasters, etc.)
Challenges
• Resources – computers, web access are great but not essential– Teaching assistants are a bonus
• Lengthy pre-lab lecture• Issues with MS Excel
– Versions of software, Mac vs. PC– Teaching equation writing, graphing and drawing