Scale-dependent responses to environmental fluctuations in tropical tree species’ crown temperatures

This dataset comprises tree crown temperature and tree crown trait data for four four canopy species in Laupahoehoe forest in Hawai'i, analyzed at a \"crown\" and \"leaf\" level, as defined in the manuscript methods. Climate data were collected from the climatological station at Laupāhoehoe Forest, and here we provide the average conditions at the 5 UAV flight times., Data here were derived from spatial orthomosaics from five UAV flights with a 20 cm2 pixel resolution were created for RGB, Thermal (°C), and lidar intensity with detailed methods described in the published manuscript.
Tree crown temperature data: 652 crowns or leaf clusters were identified to four species: 396 Metrosideros polymorpha (‘ōhi‘a lehua), 159 Acacia koa (koa), 51 Cheirodendron trigynum (ʻōlapa), and 46 Coprosma rhynchocarpa (pilo). Data were filtered to a \"crown\" and \"leaf\" level of analysis, described in detail in the manuscript, and thermal values from all remaining pixels were averaged to determine an average crown temperature at each flight time.
Tree crown trait data: For each tree crown, we extracted average height (m), calculated the coefficient of variation (CV) of crown height (the ratio of standard deviation to mean height) within each crown as a measure of leaf clumping. We used the R package “lidR” (1-3) and the function “voxel_metrics” to derive average crown de..., , # Hawaiian tree species’ crown temperatures and crown traits

[https://doi.org/10.5061/dryad.kwh70rzfp](https://doi.org/10.5061/dryad.kwh70rzfp)

## Description of the data and file structure

Data for the manuscript titled \"Scale-dependent responses to environmental fluctuations in tropical tree species’ crown temperatures,\" by Bayliss et. al., for *Communications Earth & Environment.*

### Files and variables

#### File: Abiotic\_Conditions\_DRYAD.csv

**Description:** 

##### Variables

* DMY: Day, Month, and Year of Data Collection
* flight_time: Approximate Flight Times of Data Collection (Time marking beginning of UAV flight)
* Tair_Celcius: Air Temperature in degrees Celcius
* WS_mph: Wind Speed in miles per hour
* Rn_Wm-2: Net Radiation in Watts per meter squared
* VPD_Pa: Vapor Pressure Deficit in Pascals

#### File: Crown\_Temperatures\_DRYAD.csv

**Description:** 

##### Variables

* species: Species names, coded as METPOL = *Metrosideros polymorpha*; ACAKOA = *Acacia koa...