EGU2020-1882
https://doi.org/10.5194/egusphere-egu2020-1882
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Impact of wind speeds on turbulent transport of carbon dioxide (CO2) fluxes at a tropical location in Ile - Ife, southwest Nigeria

Theodora Bello, Adewale Ajao, and Oluwagbemiga Jegede
Theodora Bello et al.
  • Institute of Education, Science Unit, Obafemi Awolowo University, Ile Ife, Nigeria (bledore@oauife.edu.ng)

The study investigates impact of wind speeds on the turbulent transport of CO2 fluxes for a land-surface atmosphere interface in a low-wind tropical area between May 28th and June 14th, 2010; and May 24th and June 15th, 2015. Eddy covariance technique was used to acquire turbulent mass fluxes of CO2 and wind speed at the study site located inside the main campus of Obafemi Awolowo University, Ile – Ife, Nigeria. The results showed high levels of CO2 fluxes at nighttime attributed to stable boundary layer conditions and low wind speed. Large transport and distribution of CO2 fluxes were observed in the early mornings due to strong wind speeds recorded at the study location. In addition, negative CO2 fluxes were observed during the daytime attributed to prominent convective and photosynthetic activities. The study concludes there was an inverse relationship between turbulent transport of CO2 fluxes and wind speed for daytime period while nighttime CO2 fluxes showed no significant correlation.

Keywords: CO2 fluxes, Wind speed, Turbulent transport, Low-wind tropical area, Stable boundary layer

How to cite: Bello, T., Ajao, A., and Jegede, O.: Impact of wind speeds on turbulent transport of carbon dioxide (CO2) fluxes at a tropical location in Ile - Ife, southwest Nigeria, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-1882, https://doi.org/10.5194/egusphere-egu2020-1882, 2019