Reduced productivity and carbon drawdown of tropical forests from ground-level ozone exposure

Elevated ground-level ozone (O3), a result of human activity, is known to reduce plant productivity but its impact on tropical forests remains unclear. Here for the first-time we measured the O3 susceptibility in a range of ten tropical tree species and use these data to determine how changing O3 exposure has impacted tropical forest productivity and the global carbon cycle., This deposit represents i) data on experimental conditions and results from work investigating the impacts of ozone (O­3) on saplings of ten tropical tree species, ii) how this empirical data was used to parameterize a global land surface model as well as iii) global model outputs for the impacts of O3 on tropical forests and the global carbon cycle and iv) formatted data and R-code needed to replicate all figures within the associated manuscript.
Experimental facility
All empirical work was conducted at the joint University of Exeter (UoE) and James Cook University (JCU) TropOz research facility (www.tropoz.org) located at the James Cook University’s Environmental Research Complex (www.jcu.edu.au/environmental-research-complex) on the Nguma-bada campus in far-north Queensland, Australia. The facility consists of nine independently controlled and monitored Open Top Chambers (OTC) which allows for the examination of plants grown under ambient CO2 and nine different O3 concentrations usi..., , # Data from: Impact of ground-level ozone on tropical forests

[https://doi.org/10.5061/dryad.4b8gthtmz](https://doi.org/10.5061/dryad.4b8gthtmz)

Represents 32 data files (9.32MB) and an R script. Data files are a combination of .csv and netCDF and include both experimental data and model results.

## Description of the data and file structure

## Experimental Data

Consists of 13 data files representing a summary of experimental conditions and data produced by a series of experiments using Open Top Chambers to determine the O3 susceptibility of  ten tropical tree species.  

**Experimental conditions:** Ten data files of O3 concentrations and meteorological conditions for the OTC experiments conducted on ten species of tropical tree seedlings listed in Extended Data Table 1 of the manuscript. Each file has the same structure and parameters (see below)

            \"*Ba_merged_data.csv*\" = *Brachichyton acerifolius* (Malvaceae)
            \"*Cb_merged_data.csv*\" =*Carallia brachiata* ...