Senior IS day only the dedicated staff members made the trip to Browns Lake to record water levels and install a well.
Now that the snow pack measured and described at Wooster Memorial Park is gone downstream we can get busy and examine the groundwater – streamflow interaction. The hydrograph below that was record at Browns Lake by us (see below) and in the Killbuck River by the USGS shows a characteristic shape indicating the melting of the snowpack.
Dr. Lowell and a crew from the University of Cincinnati spent thee days with us on the ice at Browns Lake Bog. The objectives were to take a series of long cores from the ice platform at the bog and, in the big lake, to take a short surface core that the Wooster Geomorphology class will study. In addition we installed a series of four nested monitoring wells in the sediments around the lake.
The coring crew taking the deep core – about 24 meters in two meters of water depth.
The sediment-water interface on TV – note the screen on the ice that helped guide the coring process to be sure the actual sediment-water interface was captured.
Subsampling the upper core to be sure the modern sediments at the interface were in the bag.
The ongoing coring.
Measuring dissolved oxygen, pH, TDS, ORP and Temperature along a depth profile.
Measuring the same parameters in four sets of nested monitoring wells – one deep, one shallow.
Drilling holes in the ice along grid and measuring depth profiles in the big lake.
One of the ice hole teams.
The mud probing team – not a glamorous job but necessary.
Measuring the water levels in the well after bailing.
The weather station installed at the bog.
Drilling a series of holes to act as a screen in the monitoring wells.
Pumping the wells for isotope samples and installing a transducer to keep track of water levels.
Erika takes aim at the upper branches of a white oak – she will extract the water from these twigs and buds and measure their isotopic composition.
Pealing the twigs and bagging them up for transport.
Tom recovering the surface core from the middle of Browns Lake – the big lake. Now the ball is in our court to do some analysis. Great thanks go out to the Core Boss and his crew.
Welcome to the Geomorphology (Geology 300) class web page for Spring 2015. Please check this Syllabus weekly for announcements, readings, assignments and links specific to weekly topics covered in class, labs and fieldtrips. The Preparation Questions page will lead you to thought questions, readings and short exercises that should be completed before each class. See About the Course for evaluation, logistics and expectations.
Although cold and snow has been a bit disruptive in our lives (at least in NE – Ohio) this past month what would it be like with out snow – read this.
Our first lab will be concerned with the data and impact of the December 2013 flood. See images below courtesy of Nick Wiesenberg.
Some images below from the course in the Fall of 2012
Trip to Holmesville Sand and Gravel where we toured the operation and the guts of a Kame Moraine.
Just to the west on the trip is Browns Lake Bog – a kettle in the midst of the Lake District of Ohio
More Coring – this time along the shore of Browns Lake and guess what the upper few meters yielded.
Tell me about the recent (Anthropocene) history from Ohio with this core….
Coring at Bonnett Pond
The coring crew
