Wayqecha Amazon cloud curtain ecosystem experiment: Climate data and R processing code

Fog makes a significant contribution to the hydrology of a wide range of important terrestrial ecosystems. The amount and frequency of fog immersion are likely to be affected by rapid ongoing anthropogenic changes but the effects of these changes remain relatively poorly understood compared to changes in rainfall.
Here, we present the design and performance of a novel experiment to actively manipulate low lying fog abundance in an old-growth tropical montane cloud forest (TMCF) in Peru - the Wayqecha Amazon Cloud Curtain Ecosystem Experiment (WACCEE). The treatment consists of a 30m high, 40m wide mesh curtain suspended between two towers and extending down to the ground, and two supplementary curtains orientated diagonally inwards from the top of each tower and secured to the ground upslope. The curtains divert and intercept airborne water droplets in fog moving upslope, thereby depriving a ~ 420 m2 patch of forest immediately behind the curtains of this water source.
The treatment cau..., Above-canopy meteorology
Three weather stations were installed at the WACCEE experimental site in May 2022, two stations were installed inside the FE plot at approximately 20 m height above the canopy and one station was installed at approximately 20 m height adjacent to the experiment on a third aluminum tower 40 m from the FE plot. The weather stations included a CS320 digital thermopile pyranometer, a HygroVUE5 temperature and relative humidity (RH) sensor enclosed in a RAD06 radiation shield (Campbell Scientific Ltd, Loughborough, UK). Data was recorded on a CR1000X measurement and control datalogger and the stations were powered by a SP30 30W solar panel (Campbell Scientific Ltd, Loughborough, UK). Temperature, RH and radiation sensors were calibrated with each other prior to installation. On one station installed inside the WACCEE plot and the station installed adjacent to the experiment, two PHYTOS 31 leaf wetness sensors (METER Group, Munich, Germany) were installed perpendicula..., , # Wayqecha Amazon Cloud Curtain Ecosystem Experiment: Climate Data and R processing Code

[https://doi.org/10.5061/dryad.s4mw6m9g6](https://doi.org/10.5061/dryad.s4mw6m9g6)

## Description of the data and file structure

## **Files and variables**

**File: Weather_station_data.zip**

**Description:** Three excel files from 3 weather stations recording air temperature, relative humidity, solar radiation and leaf wetness (rain and fog & fog only). “WAYSTAT2”: weather station installed at approximately 20 m height above the canopy on an aluminum tower ~40 m from the FE plot, “WAYSTAT3” & “WAYSTAT4”: two stations installed inside the FE plot ~5 m behind the mesh curtain at approximately 20 m height above the canopy. \"WAYSTAT3\" station lacked a solar radiation sensor, \"WAYSTAT4\" station lacked leaf wetness sensors - missing values for these variables in the respective datasheets are denoted with \"NAN\".

**File structure:**

Column A: timestamp (year, month, day, hour, minute) – time ...