Sean Burns

Associate Scientist II
TIIMES - MMM
BEACHON

Contact Information:
PO Box 3000, Boulder, CO 80307-3000
Office: FL3 - 3048-
Telephone: 303-497-8934
Email: sean@ucar.edu
Home Page

Project Summary:

Carbon in the Mountains

I was initially involved with TIIMES-related research as part of the 2004 "Carbon in the Mountains" Experiment (CME04). My main task during the field project was to help Tony Delany (now retired) with the CO2-sampling instrument, HYDRA and work with Jielun Sun on the data analysis. Since I work part-time at the University of Colorado managing the CU Ameriflux Tower (PI: Russ Monson) I was able to help link the CME04 data to the CU tower data. I have been the lead author on a paper that describes HYDRA (submitted to Journal of Atmospheric and Oceanic Technology) as well as created a couple of posters that compare and contrast different aspects of the CME04 tower data (primarily, the spectra of vertical wind above and below the canopy for different stability conditions, and also binning of the tower data using wind speed and bulk Richardson number).

AMS: Measurement of the diurnal cycle of temperature, humidy, wind, and carbon dioxide in a subalpine forest during the 2004 Carbon in the Mountains Experiment (CME04)

AGU: Measurements of Snowpack Temperature in a Colorado Subalpine Forest

Flux Workshop: An Evaluation of In-Canopy Flux Measurements

Canopy Horizontal Array Turbulence Study

In spring 2007 I had a short stint helping with the Canopy Horizontal Array Turbulence Study field experiment (CHATS) field project and have started to help EOL with cleanup of the CHATS data.

I hope to have the opportunity to continue analysis of CME04 data (writing papers based on the posters), start analysis of the CHATS data, and also be involved in the Bio-hydro-atmosphere interactions of Energy, Aerosols, Carbon, H2O, Organics & Nitrogen (BEACHON) field project.

Publications:

Zobitz, J. M., S. P. Burns, J. Ogee, M. Reichstein, D. R. Bowling, 2007: Partitioning net ecosystem exchange of CO2: a comparison of a Bayesian/isotope approach to environmental regression methods. J. Geophys. Res., 112, G03013.

Sun, J., S. P. Burns, A. C. Delaney, S. P. Oncley, A. A. Turnipseed, B. B. Stephens, D. H. Lenschow, M. A. LeMone, R. K. Monson, D. E. Anderson, 2007: CO2 Transport over Complex Terrain. Agric. For. Meteorol., 145, 1-21, doi: 10.1016/j.agrformet.2007.02.007.

Schaeffer, S., S. P. Burns, D. E. Anderson, J. Sun, C. Yi, D. R. Bowling, 2006: Environmental controls on the delta C13 of forest respired CO2 across a vertical canopy profile in a subalpine coniferous forest. 2006 Fall Mtg., San Francisco, CA, US, AGU.

Burns, S. P., R. K. Monson, M. V. Losleben, A. A. Turnipseed, M. W. Williams, N. P. Molotch, 2006: Measurements of snowpack temperature in a Colorado subalpine forest. 2006 Fall Mtg., AGU