A multi-source, remote sensing-driven framework for detecting structural and compositional change in coral reefs

Trudeau, Gabrielle A.; Lowell, Kim; Dijkstra, Jennifer A.

doi:10.1016/j.ecoinf.2026.103829

i

A multi-source, remote sensing-driven framework for detecting structural and compositional change in coral reefs

2026
By Trudeau, Gabrielle A. ; Lowell, Kim ; Dijkstra, Jennifer A.

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Journal Title:

Ecological Informatics
Personal Author:

Trudeau, Gabrielle A. ; Lowell, Kim ; Dijkstra, Jennifer A.
NOAA Program & Office:

NOS (National Ocean Service) ; CoRIS (Coral Reef Information System)
Description:

Coral reefs are experiencing unprecedented change due to climate-driven disturbances, yet effective monitoring remains constrained by limited integration across data types and spatial scales. This study presents a multi-source framework for detecting structural and compositional changes in coral reefs by integrating ICESat-2-derived terrain metrics, high-resolution PlanetScope imagery, and field-based photoquadrat observations. We applied this workflow to Heron Reef in the southern Great Barrier Reef, Australia, to quantify changes between 2020 and 2025-a period marked by 3 mass bleaching events and 9 cyclones. ICESat-2 data provided rugosity, slope, and bathymetric depth, while spectral unmixing of PlanetScope imagery yielded subpixel estimates of benthic composition.
Source:

Ecological Informatics, 96, 103829
DOI:

https://doi.org/10.1016/j.ecoinf.2026.103829
ISSN:

1574-9541
Format:

PDF
Publisher:

Elsevier BV
Document Type:

Journal Article
Funding:

Grant no. NA20NOS4000196
License:

https://creativecommons.org/licenses/by/4.0/
Rights Information:

CC BY
Compliance:

Submitted
Main Document Checksum:

urn:sha-512:ece021610eb06698b350e1c923d3aa30ef005ce71a95b71ad73b2285eed97a78a9550e2fc1d264fb99b7b4d96285d14f8c081155a64053da7520c02848edf04c
Download URL:

https://repository.library.noaa.gov/view/noaa/74024/noaa_74024_DS1.pdf
File Type:

[PDF - 11.02 MB ]

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