Composite2Change (C2C) on Google Earth Engine: Time-series change detection and metrics characterizing disturbance and recovery

Txomin Hermosilla

doi:10.1016/j.envsoft.2026.107082

Composite2Change (C2C) on Google Earth Engine: Time-series change detection and metrics characterizing disturbance and recovery

2026-06-19

0

OA

AI

T

Txomin Hermosilla *

M

Michael A. Wulder

J

Joanne C. White

N

Nicholas C. Coops

D

Daniel Coelho

G

Giovanni Ciatto

N

Noel Gorelick

E

Emma Bambagioni

S

Saverio Francini

DOI：10.1016/j.envsoft.2026.107082

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Abstract

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• Composite2Change (C2C) implemented as a native Google Earth Engine algorithm • Scalable temporal segmentation of satellite time series • Standardized disturbance and recovery metrics from spectral trajectories • Change metrics describe timing, magnitude, duration, and regrowth dynamics • Enables reproducible large-area change monitoring and modelling workflows

Keywords:

disturbance monitoring

forest dynamics

Landsat

Sentinel-2

land cover

change metrics

cloud computing

Composite2Change (C2C) on Google Earth Engine: Time-series change detection and metrics characterizing disturbance and recovery

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