Contrasting the Biophysical and Radiative Effects of Rising CO 2 Concentrations on Ozone Dry Deposition Fluxes
[1];
[2];
[2];
[3];
[2]
- Department of Earth Sciences The University of Southern California Los Angeles CA USA, Department of Civil and Environmental Engineering The University of Southern California Los Angeles CA USA
- Atmospheric Sciences and Global Change Division Pacific Northwest National Laboratory Richland WA USA
- Atmospheric, Earth and Energy Division Lawrence Livermore Nation Laboratory Livermore CA USA
- Climate Change Science Institute and Environmental Sciences Division Oak Ridge National Laboratory Oak Ridge TN USA
Abstract The dry deposition of ozone from the atmosphere to ecosystems is an important coupling mechanism between atmospheric chemistry and terrestrial biogeochemical processes. In most Earth system models, dry deposition is simulated using a resistor‐in‐series approach that aims to parameterize the governing biological, chemical, and physical processes through a series of functional approximations. Here, we evaluate the influence of carbon cycle‐climate responses on this parameterization using the results of the Energy Exascale Earth System Model v1.1 Biogeochemistry simulation campaign. This simulation campaign was designed in part to explore the biophysical and radiative effects of rising historical CO 2 concentrations on the Earth system. We find that while the global annual ozone dry deposition is relatively insensitive to these effects, regionally the influence can be up to 10%. The strongest regional sensitivities in ozone dry deposition are predominantly in higher latitudes over land in the northern hemisphere and are dominated by the radiative effect of CO 2 , with little net influence of biophysical responses. Of all the impacts of the radiative effect of CO 2 , we point to the potential importance of accurately representing ozone deposition to snow in Earth System Models and provide recommendations for future simulation campaigns.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Biological and Environmental Research (BER)
- Grant/Contract Number:
- AC02-05CH11231; AC05-00OR22725; AC05-76RL01830; AC52-07NA27344
- OSTI ID:
- 1963529
- Report Number(s):
- LLNL-JRNL-856981; PNNL-SA-176677; e2022JD037668
- Journal Information:
- Journal of Geophysical Research: Atmospheres, Journal Name: Journal of Geophysical Research: Atmospheres Journal Issue: 6 Vol. 128; ISSN 2169-897X
- Publisher:
- American Geophysical Union (AGU)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Vegetation Response to Rising CO2 Amplifies Contrasts in Water Resources Between Global Wet and Dry Land Areas
Revisiting particle dry deposition and its role in radiative effect estimates