Essential Variables for Environmental Monitoring: What are the Possible Contributions of Earth Observation Data Cubes?

Giuliani, Gregory; Egger, Elvire; Italiano, Julie; Poussin, Charlotte; Richard, Jean-Philippe; Chatenoux, Bruno

doi:10.3390/data5040100

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Title		Essential Variables for Environmental Monitoring: What are the Possible Contributions of Earth Observation Data Cubes?
Authors		Giuliani, Gregory Egger, Elvire Italiano, Julie Poussin, Charlotte Richard, Jean-Philippe Chatenoux, Bruno
Published in		Data. 2020, vol. 5, no. 100
Abstract		Environmental sustainability is nowadays a major global issue that requires efficient and effective responses from governments. Essential variables (EV) have emerged in different scientific communities as a means to characterize and follow environmental changes through a set of measurements required to support policy evidence. To help track these changes, our planet has been under continuous observation from satellites since 1972. Currently, petabytes of satellite Earth observation (EO) data are freely available. However, the full information potential of EO data has not been yet realized because many big data challenges and complexity barriers hinder their effective use. Consequently, facilitating the production of EVs using the wealth of satellite EO data can be beneficial for environmental monitoring systems. In response to this issue, a comprehensive list of EVs that can take advantage of consistent time-series satellite data has been derived. In addition, a set of use-cases, using an Earth Observation Data Cube (EODC) to process large volumes of satellite data, have been implemented to demonstrate the practical applicability of EODC to produce EVs. The proposed approach has been successfully tested showing that EODC can facilitate the production of EVs at different scales and benefiting from the spatial and temporal dimension of satellite EO data for enhanced environmental monitoring.
Keywords		Essential variables — Climate — Biodiversity — Water — Earth observations — Data cube
Identifiers		DOI: 10.3390/data5040100
Full text		Article (Published version) (4 MB) - Free access Other version: https://www.mdpi.com/2306-5729/5/4/100
Structures		Centres et instituts / Institut des sciences de l'environnement
Research groups		Envirospace Lab Global Resource Information Database (GRID) ISE Pôle Informatique environnementale ISE Pôle Sciences TIGERS
Citation (ISO format)		GIULIANI, Gregory et al. Essential Variables for Environmental Monitoring: What are the Possible Contributions of Earth Observation Data Cubes?. In: Data, 2020, vol. 5, n° 100. doi: 10.3390/data5040100 https://archive-ouverte.unige.ch/unige:143508