About Cyberseminars

A cyberseminar is a PowerPoint presentation shown over the web in conjunction with a conference call for narration by the presenter. CUAHSI pays on a connection basis so minimizing the number of connections on each campus is preferable. If time allows, a question and answer period may follow.

Fall 2011 Schedule

Fall 2011 Cyberseminars Theme — "Earth Observatories for Interdisciplinary Science: Reports from Critical Zone Observatories and Water, Sustainability and Climate Studies"

October 28, 2011; 3:00pm ET

• Suzanne Anderson (Boulder Creek CZO)
  Title: Boulder Creek CZO: Natural experiments to study Critical Zone evolution and function
  Description: NSF established Critical Zone Observatories in late 2007 to promote interdisciplinary research on integration and coupling of Earth surface processes. Glaciers, knickpoint migration, and post-orogenic decay have shaped different parts of the Boulder Creek watershed in the Colorado Front Range over the Cenozoic. At the largest scale, we examine how these different erosion regimes shape the landscape and subsurface Critical Zone architecture. We use cosmogenic radionuclides to establish timing, and models to test possible erosion drivers. We also look at current processes operating at the hillslope scale. In one subwatershed, contrasting slope aspect provides an experiment on water delivery to the subsurface. Water flowpaths from melt of a seasonal snowpack are compared with flowpaths on adjacent slopes that experience only intermittent snow. The depth to fresh rock differs on these slopes, presumably reflecting the long-term effect of differing weathering processes and rates. Modeling will be required to link modern processes through past climates and vegetation regimes to the Critical Zone structure we see.
  
  • Presentation Slides (14MB, 35 pages; PDF)
  • Recorded Presentation (Adobe Connect recording)
  • Video Presentation on SciVee

November 4, 2011; 3:00pm ET

• Jon Chorover (Jemez-Catalina CZO)
  Title: The Jemez-Santa Catalina CZO: Transformative Behavior of Water, Energy and Carbon in the Critical Zone: Quantifying Linkages among Ecohydrology, Biogeochemistry, and Landscape Evolution
  Description: The structure of the critical zone (CZ) is a result of tectonic, lithogenic and climatic forcings that shape the landscape over geological time scales. In the southwestern US, systematic climate variation follows elevation gradients that extend from low desert basins to forested upland catchments. We postulate that associated variation in carbon and water flux exerts strong control over CZ evolution, and that quantifying system inputs and fluxes of these constituents leads to predictions of non-linear and threshold effects in CZ structure formation. We are testing this hypothesis in the Jemez-Santa Catalina CZO, which comprises a pair of observatories situated on granite, rhyolite and schist bedrock - in northern New Mexico and Southern Arizona.
  
  • Presentation Slides (17.3MB, 37 pages; PDF)
  • Recorded Presentation (Adobe Connect recording)
  • Video Presentation on SciVee

November 11, 2011; 3:00pm ET

• Chris Duffy (Shale Hills CZO)
  Title: The Susquehanna/Shale Hills Critical Zone Observatory: A Earth-System testbed for process and prediction
  Description: Our interdisciplinary team works collaboratively at the Susquehanna-Shale Hills CZO to advance methods for characterizing regolith, to provide a theoretical basis for predicting the distribution, properties and evolution of regolith, and to theoretically and experimentally study the impacts of regolith on fluid pathways, flow rates, solute residence times, and response to climate change.
  
  • Presentation Slides (9.5MB, 46 pages; PDF)

November 18, 2011; 3:00pm ET

• Mike Goulden (on behalf of the Southern Sierra CZO science team)
  Title: Relationships between elevation, climate, and ecosystem properties in the Sierra CZO
  • Presentation Slides (8MB, 37 pages; PDF)
  • Recorded Presentation (Adobe Connect recording)
  • Video Presentation on SciVee

CZO/WSC - Spring 2012 (tentative)

Anthony Aufdenkampe (Christina River Basin CZO)

Fred Scatena (or designate, tentative) (Luquillo CZO)

Jeff McDonnell (WSC: "Willamette Water 2100")

Eric Booth (WSC: The Yahara Watershed)

Instructions

Call-in numbers

• (888) 850-4523 (toll-free)

  • Telephone dial-in participant passcode: 449161

NOTE: When you join the Web portion of the meeting you will receive a prompt to enter your telephone whereupon the system will call you back and connect you to the integrated audio portion of the meeting. If you are planning to use Skype to call into the meeting, close the call-back dialog box and manually dial the number listed below and supply the passcode when prompted to do so.

Short "How-to" Tutorials to Maximize Your Cyberseminar Experience in Adobe Connect

• The "Call-Me-Back" Teleconferencing Function
• Audio Setup Wizard for Using VoIP During the Presentation

Post-cyberseminar viewing

PDF versions of the cyberseminars are available for all the talks. Some older presentations are available in integrated audio/video format. To view: dowload and install atrecply.msi then download and view the .wrf file. Newer presentations using Adobe Connect will have a URL associated with them which will be posted after the event.