Mapping irrigated areas using multi-sensor remote sensing data in a Mediterranean environment
- Published
- Accepted
- Subject Areas
- Spatial and Geographic Information Systems
- Keywords
- Landsat-8, South Sardinia, Open Source, NDVI, Irrigated Area, Sentinel 2A
- Copyright
- © 2016 Nino et al.
- Licence
- This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ Preprints) and either DOI or URL of the article must be cited.
- Cite this article
- 2016. Mapping irrigated areas using multi-sensor remote sensing data in a Mediterranean environment. PeerJ Preprints 4:e2155v1 https://doi.org/10.7287/peerj.preprints.2155v1
Abstract
Water managers need map of irrigated areas (defined as the identification of their location and their areal extent) to plan a rational use of water under limited availability and to prevent the unauthorized withdrawals. Many authors have shown that the Earth Observation techniques are an effective tool for mapping irrigated areas worldwide at different spatial scales (global/regional/and local). This study presents a methodology for mapping irrigated areas in semi-arid environment based on Earth Observation techniques and by fully exploiting datasets freely available processed by open source software and tools. Data acquired with the Landsat 8 Operational Land Imager (OLI) and the new Sentinel 2A MultiSpectral Instrument (MSI) sensors were integrated to obtain cloud free dense time series allowing to monitor the vegetation development throughout the growing seasons. Irrigated areas were identified by analysing the growing patterns under water deficit conditions from NDVI values under the assumption that, in arid and semi-arid environment (like the Mediterranean Region), high trend of vegetation growth are compatible only with irrigation. The method was applied in the Cixerri Consortium Irrigation District located in South of Sardinia (Italy).
Author Comment
This is an abstract intended for the OGRS2016 Collection - Session " Modelling spatio-temporal processes using open source geospatial tools"