Capturing episodic impacts of environmental signals
Mendiolar, M., Filar, J.A., Yang, W.H., Leahy, S., and Courtney, A.J. (2023) Capturing episodic impacts of environmental signals. Environmental Modelling and Software, 170. 105837.
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Abstract
Environmental scientists frequently rely on time series of explanatory variables to explain their impact on an important response variable. However, sometimes, researchers are less interested in raw observations of an explanatory variable than in derived indices induced by episodes embedded in its time series. Often these episodes are intermittent, occur within a specific limited memory, persist for varying durations, at varying levels of intensity, and overlap important periods with respect to the response variable. We develop a generic, parametrised, family of weighted indices extracted from an environmental signal called IMPIT indices. To facilitate their construction and calibration, we develop a user-friendly app in Shiny R referred to as IMPIT−a. We construct examples of IMPIT indices extracted from the Southern Oscillation Index and sea surface temperature signals. We illustrate their applications to two fished species in Queensland waters (i.e., snapper and saucer scallop) and wheat yield in New South Wales.
Item ID: | 81759 |
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Item Type: | Article (Research - C1) |
ISSN: | 1873-6726 |
Keywords: | Episodes, Intensity, Intermittence, Marine heatwaves, Persistence, Southern oscillation index |
Copyright Information: | © 2023 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
Date Deposited: | 12 Mar 2024 04:35 |
FoR Codes: | 40 ENGINEERING > 4013 Geomatic engineering > 401304 Photogrammetry and remote sensing @ 50% 41 ENVIRONMENTAL SCIENCES > 4104 Environmental management > 410402 Environmental assessment and monitoring @ 50% |
SEO Codes: | 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280111 Expanding knowledge in the environmental sciences @ 100% |
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