gwiles June 4th, 2010
guest blogger: Stephanie
We arrived in Juno last night a little past 10 PM local time (that’s 2 AM for us…) after a long day of traveling, to be greeted by stuffed bears in the airport (awesome!). After spending a night in the lovely Breakwater Inn, we had an amazing breakfast at Donna’s, swung by the Mendenhall glacier in the Tongass National Forest, and then waited in the airport for Dan Lawson, of CRREL (Cold Regions Research and Engineering Laboratory).
The Breakwater Inn
The Mendenhall glacier
The "stream" at the hatchery. When spawning time comes, the salmon hatched here return.
Shopping followed, as did lunch and a quick trip to the salmon hatchery. Then it was back to the airport to catch our flight to Gustavus, which provided us with some awesome views of the inlets and mountains in the area.
A cirque, a basin formed by a glacier, seen from our plane.
Once in Gustavus, we went on into Glacier Bay National Park to the headquarters to plan for the next few days and learn some bear safety tips. Tomorrow, it’s to the field!
gwiles October 15th, 2009
The class at the No-Till experimental plots at the OARDC in Wooster. Students took soil cores from plots that were conventionally tilled and those that have not been tilled for 50 years. The soil structure and organic content in each of the soil cores clearly showed the differences in the farming practices.
Richa took this spectacular shot of a recently-harvested soybean field. This shows the lake plain from Lake Killbuck and the underfit Killbuck River. The view to the north looks up the Killbuck Spillway. This field was stripped of a foot of fertile topsoil during the 1969 flood.
Rob and Palmer pose with coring device that they used to recover a sediment core from the bottom of the Killbuck River where is has downcut into the blue lake clays. The blue clay is the confining layer of the Wooster buried valley aquifer.
Mike from the Wooster water plant explains the challenges of keeping Wooster supplied with clean groundwater.
gwiles September 26th, 2009
Dr. Tom Lowell and two University of Cincinnati graduate students, Esteban and Bill, were kind enough to make the trip to Long Lake to help the Wooster Climate Change class extract two long (14 meter) sediment cores from the middle of the lake.
The first step was to build the raft. Dr. Lowell (aka "the core boss") is in the trailer. Bill and Rob assemble the parts and pieces.
Terry Workman (our course TA) drives the geophysical craft. Under the tarp is Esteban who is collecting bathymetric and seismic data. Based on these data a core site was chosen.
The core boss gives us a short course on the operation of the coring platform. Dr. Lowell has custom-built this rig and he points out the automated coring system. A hydraulic system drives the Livingstone corer into and out of the mud.
Well into the Holocene - Esteban wraps up another meter of lacustrine sediment.
Tom and Terry work the platform sending the piston corer down for another meter.
The crew rows to shore. The class will now obtain organic material for radiocarbon dating and then the work begins analyzing a suite of parameters in the cores. Class members Lindsey and Amanda located a stick at the base of the core, this has been sent for a radiocarbon age and should give us an estimate of the timing of deglaciation in the region. Will Hansen (red shirt) will be using the upper part of the core together with our other collections from Round, O'Dell and Browns Lake for his Independent Study.
gwiles September 24th, 2009
Adrian (Philosophy) and Kelly (Geology) core a European Larch for an ecological response study using tree-rings. The class will compare how various trees are responding to climate variability over the last 100 years or so. The site is the Secrest Arboretum of Ohio State University's OARDC. We thank Ken Cochran, Director of the facility for permission to do this study.
Chesea (Archaeology) and Adonis (Political Science) core a Norway Spruce
Houston (Religious Studies) and Roz (Archaeology) sneak up on a Pondersosa Pine and obtain a core
Travis and Adrian at the OARDC Meteorological Station. After the class develops tree-ring chronologies they will compare the ring-width series to the long (>100 year) record of monthly temperature and precipitation records from this site.