Up-scaling from Leaf to Canopy the Aerosol-sized Particle Collection Mechanism Within a Non-uniform Canopy Medium : Project period 2011-2016

Pryor and Katul

 

Our project is funded by NSF (ATM 1102309, 2011-2014, 1517365 2014-2016). We propose to address these three key aspects of particle deposition onto forested surfaces using a combined experimental and modeling approach at multiple hierarchical scales (leaf-to-canopy) by exploring: 1. The relative importance of, and correct descriptions of, the foliage collection mechanisms at the leaf scale. 2. Deposition flux partitioning between foliar and non-foliar elements. 3. Up-scaling results from issues [1] and [2] to the entire ecosystem.

Project abstract
Our capstone publication from this research was published in JGR in Jan 2017 and was selected to provide the cover image

Field research:
Click here for a short video about the measurements
Experimental setup
Here is an example of the size-resolved particle gradient through the canopy
Here is a tar file containing 3 Matlab *.mat files; 1) containing our fluxes from the sonics deployed at 46m, 20m and 7m, 2) containing fluxes of CO2 and H2O from our LiCOR 7200 at 46m, 3) containing fluxes from our CPC at 7m and 46m.

Chamber research:
Here is a short video about the experimental chamber
A short video updating information about the experimental chamber

Improved models of particle dry deposition: Project period 2003-2007

Pryor, Barthelmie and Binkowski

Our project is funded by NSF (ATM 0334321, December 2003 - November 2007) and has the following objective: To develop and test process-level models of particle dry deposition to a range of surface types with the emphasis on complex canopies.