Simulations disentangling temperature vs. VPD effects on tropical forest GPP

Tropical forest photosynthesis can decline at high temperatures due to (1) biochemical responses to increasing temperature and (2) stomatal responses to increasing vapor pressure deficit (VPD), which is associated with increasing temperature. It is challenging to disentangle the influence of these two mechanisms on photosynthesis in observations, because temperature and VPD are tightly correlated in tropical forests. Nonetheless, quantifying the relative strength of these two mechanisms is essential for understanding how tropical gross primary productivity (GPP) will respond to climate change, because increasing atmospheric CO2 concentration may partially offset VPD-driven stomatal responses, but is not expected to mitigate the effects of temperature-driven biochemical responses. We used two terrestrial biosphere models to quantify how physiological process assumptions (temperature acclimation of photosynthesis and dynamic hydraulic stress) and functional traits (e.g. maximum xylem cond..., This dataset contains model output from simulations using the Functionally Assembled Terrestrial Ecosystem Simulator (FATES; Koven et al. 2020) and the Community Land Model version 5 (CLM5; Lawrence et al. 2019)., , # Simulations disentangling temperature vs. VPD effects on tropical forest GPP

This repository contains model code to run Functionally Assembled Terrestrial Ecosystem Simulator (FATES) and Community Land Model version 5 (CLM5) simulations, and it contains model output from these simulations. 

## Description of the data and file structure

This dataset is organized into several zipped files: `model_output`, `model_code`, `input_files`, and `case_directories`.

#### Model Output

The `model_output` file contains multiple directories, each of which contains model output from a different simulation. Simulations are named according to the convention `ModelConfiguration_Site_MeteorologicalForcing_Number.`
There are eight model configurations:

* `FATESdef` (default FATES: both photosynethic temperature acclimation and plant hydraulics are off)
* `FATESH` (FATES with photosynethic temperature acclimation off and plant hydraulics on)
* `FATESA` (FATES with photosynethic temperature acclimatio...