Airborne seismic data acquisition using stereo vision

Rapstine, Thomas; Sava, Paul; Arias, Elias

doi:10.1139/juvs-2017-0019

Cited by 1 publication

(1 citation statement)

References 10 publications

(11 reference statements)

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“…In addition, noise becomes an issue at these scales, at which electrode contacts exact electrode locations (and their variation over time), and microtopography may introduce considerable errors and mislead interpretations. Drone‐based geophysics or instruments that are towed or attached to agricultural machinery (or autonomous vehicles) are likely to become increasingly available and alleviate some of challenges of data acquisition (e.g., http://vulcanuav.com/; https://gamaya.com/; Rapstine et al, ; the processing remains a challenge). Other surrogate variables may help indicating presence and influence of soil structure from rapid infiltration or no runoff (local gravity methods); manipulative experiments with large scale salt application to monitor rate of removal and potential pathways; and use of near‐surface seismic surveys to establish baseline compaction levels in agricultural regions.…”

Section: Opportunities For Geophysical Soil Structure Characterizationmentioning

confidence: 99%

A Review of Geophysical Methods for Soil Structure Characterization

Romero-Ruiz

Linde

Keller

et al. 2018

Reviews of Geophysics

123

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The growing interest in the maintenance of favorable soil structure is largely motivated by its central role in plant growth, soil ecological functioning, and impacts on surface water and energy fluxes. Soil structure pertains to the spatial arrangement of voids and solid constituents, their aggregation, and mechanical state. As a fragile product of soil biological activity that includes invisible ingredients (mechanical and ecological states), soil structure is difficult to define rigorously, and measurements of relevant metrics often rely on core samples or on episodic point measurements. The presence of soil structure has not yet been explicitly incorporated in climate and Earth systems models, partially due to incomplete methodological means to characterize it at relevant scales and to parameterize it in spatially extensive models. We seek to review the potential of harnessing geophysical methods to fill the scale gap in characterization of soil structure directly (via impact of soil pores, transport, and mechanical properties on geophysical signals) or indirectly by measurement of surrogate variables (wetness and rates of drainage). We review basic aspects of soil structure and challenges of characterization across spatial and temporal scales and how geophysical methods could be used for the task. Additionally, we propose the use of geophysical models, inversion techniques, and combination of geophysical methods for extracting soil structure information at previously unexplored spatial and temporal scales.

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Section: Opportunities For Geophysical Soil Structure Characterizationmentioning

confidence: 99%