Qingyu Wang - April 14

Note: As part of the Spring 2020 the online framework, BUL seminars are offered live only to enrolled students and the speaker’s adviser(s) and committee. The live sessions are recorded and made available via the seminar’s mailing list and the BUL website.   GHGs comparisons between WRF-VPRM and tower observations

Start

April 14, 2020

End

April 14, 2020

Note: As part of the Spring 2020 the online framework, BUL seminars are offered live only to enrolled students and the speaker’s adviser(s) and committee. The live sessions are recorded and made available via the seminar’s mailing list and the BUL website.

 

GHGs comparisons between WRF-VPRM and tower observations in urban scale

Qingyu Wang – Ph.D. Student, School of Meteorology

 

Questions can be directed to the speaker at qywang@ou.edu

 

Abstract:

Co-authors: Sean Crowell, Xiao-Ming Hu
Cities are responsible for the majority of anthropogenic Greenhouse Gases (GHGs) emissions and their contributions vary with urbanization as stated in past studies. To develop and assess methods of quantifying GHGs emissions at urban scale, and their role in larger-scale GHGs transport, we compare simulations from WRF-VPRM (Vegetation Photosynthesis and Respiration Model) and in situ observations collected near the surface. We find that WRF-VPRM nocturnal carbon dioxide (CO2) simulations are not as good as those in daytime, probably due to shallow boundary layer, and also compare in terms of biogenic and anthropogenic emissions. In this way, we quantify the accuracy of simulations from WRF-VPRM with tower observations to quantify uncertainties in the model. Understanding the uncertainty present in these simulations is an important first step towards using this tool to constrain GHGs from urban areas.