DOI: 10.5281/zenodo.4915883
title: The motion of trees in the wind - a collection of multiple data sets

description: The tree motion data in this repository were collected from multiple sites with different sensors.<br> There are two types of data: <br> <strong>(a) 1-hour sample data from 27 sites (/one_hour_samples/*.csv). </strong><br> Each file represents a single tree and contains two columns representing the two horizontal axes of tree motion. <br> These data are uncalibrated and do not have a time-stamp. File names refer to: <br> <em>OwnersInitials_Site_treeID_resolution_SensorType </em><br> for example<br> <em>TJ_MY_7_4Hz_Strain</em><br> These filenames match the first column in the 'TreeSummary.csv' table <br> <strong>(b) long-term data from 9 data sets (/site_name.zip/)</strong><br> The wind and tree data are stored in separate files for each day of data, <br> labelled with site name, tree ID or wind, year, month, day.<br> For example Kershope_T25_1990_5_23 In each file, the first column is the time and date in format YYYY-MM-DD HH:mm:ss.SSS<br> The following columns are tree motion data or wind data with units in the variable names. <br> Some of the data were calibrated by pulling the tree with a known force, in these cases <br> calibration coefficients are given in the 'TreeSummary' table Wind data for the Australian data set is stored in the folder with data for each tree, <br> because the trees were not close together enough to share a wind measurement. The data for Orange, Storrs and Torrington were collected with inclinometers. The data<br> for all trees is stored together in each daily file. The long-term tree motion data have not been pre-processed because user choices affect the results. <br> Importantly, you will need to remove a varying offset (caused by sensor drift) from the tree motion data.<br> See discussion in the accompanying publication and references therein. <br> <strong>References: </strong><br> Publication describing all collated data and necessary pre-processing.<br> Jackson, T. et al (2021) The motion of trees in the wind: a data synthesis. Biogeosciences. Australian data decsribed in:<br> James, K. et al (2006).: Mechanical stability of trees under dynamic loads, Am. J. Bot. doi:10.3732/ajb.93.10.1522 Kershope and Rivox data described in:<br> Gardiner, B. A., et al. "Field and wind tunnel assessments of the implications of respacing and thinning for tree stability." Forestry: An International Journal of Forest Research 70.3 (1997): 233-252. Kyloe and Clocaenog described in:<br> Hale, Sophie E., et al. "Wind loading of trees: influence of tree size and competition." European Journal of Forest Research 131.1 (2012): 203-217. Orange, Storrs and Torrington described in: <br> Bunce, Amanda, et al. "Determinants of tree sway frequency in temperate deciduous forests of the Northeast United States." Agricultural and Forest Meteorology 266 (2019): 87-96. <br> <strong>Other large tree motion data sets available at the time of writing (June 2021):</strong><br> https://doi.org/10.7910/DVN/FHJBYG<br> http://www.hydroshare.org/resource/38ae9d9fb88d49f9ad2eed1ee07475c0<br> https://doi.org/10.5683/SP2/WZIKSR<br> https://data.4tu.nl/articles/dataset/Tree_sway_of_19_Amazon_trees/12714989/1<br> https://doi.org/10.5285/657f420e-f956-4c33-b7d6-98c7a18aa07a<br> https://doi.org/10.5285/533d87d3-48c1-4c6e-9f2f-fda273ab45bc