The estimation of wet atmospheric deposition requires the interpolation between point measurements of precipitation and solute chemisty across a landscape. There are many approaches to interpolation, resulting in different estimates, usually reported without uncertainty. QUEST has received funding from the LTER Network Office to conduct a Synthesis Working Group to quantify the uncertainties in these interpolations.
A workshop will be held May 21-22, 2012, at HJ Andrews Experimental Forest, involving representatives from four LTER sites: Hubbard Brook, Sevilleta, HJ Andrews, and Coweeta. Sites were selected for their long-term precipitation records and multiple locations for precipitation solute chemistry. On the first day, attendees will compare the various models for scaling up point measurements to the landscape, by applying all the models to all the sites. The second day will be devoted to a more general discussion of uncertainty in deposition estimates, and will include a presentation by Chris Daly of the PRISM group.