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In-Situ Ambient Vibration Modal Analysis of Saguaro Cacti (Carnegiea Gigantea)

Description:

Each saguaro was temporarily instrumented with a Raspberry Shake 3D seismometer. The Raspberry Shake 3D is a low-cost and light-weight three-component seismometer that has been extensively benchmarked against other instruments (e.g., Arosio et al., 2023). It records three mutually-orthogonal components of motion (two horizontal and one vertical) using 4.5 Hz geophones with range electronically extended down to at least 0.5 Hz, at a sampling rate of 100 Hz, and internal data storage. I devised a custom mounting bracket for this study consisting of a 3D-printed platform that could be strapped to a saguaro stem and leveled about 1.5 m above ground level. The mounting height was arbitrary, being as high as feasible without requiring a ladder, and the method ensured that no damage was caused to the cactus. A small portable battery provided power.

Keyword:

photogrammetry, Saguaro cactus, Ambient vibration, Modal analysis, Numerical modeling, and Biomechanical characterization

Subject:

geophysics, seismology, ecology, and remote sensing

Creator:

Moore, Jeffrey R.

Owner:

Jeff Moore

Based Near Label Tesim:

Arizona, Arizona, United States

Language:

English

Date Uploaded:

04/07/2025

Date Modified:

04/25/2025

Date Created:

2025-02-17 to 2025-03-28

License:

CC BY NC - Allows others to use and share your data non-commercially and with attribution.

Resource Type:

Dataset

Identifier:

https://doi.org/10.7278/S5d-kx51-x9dg

In-Situ Ambient Vibration Modal Analysis of Saguaro Cacti (Carnegiea Gigantea)

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