Mapping irrigated crops through Sentinel 2 satellite images: evidences from Southern Italy
- Resource Type
- Conference
- Authors
- Matarrese, Raffaella; Portoghese, Ivan; Mirra, Laura; Giannoccaro, Giacomo; Sciusco, Pietro; Barbieri, Vincenzo
- Source
- 2023 IEEE International Workshop on Metrology for Agriculture and Forestry (MetroAgriFor) Metrology for Agriculture and Forestry (MetroAgriFor), 2023 IEEE International Workshop on. :772-776 Nov, 2023
- Subject
- Components, Circuits, Devices and Systems
Computing and Processing
Engineering Profession
General Topics for Engineers
Geoscience
Robotics and Control Systems
Production systems
Crops
Vegetation mapping
Satellite images
Water resources
Monitoring
Remote sensing
crop cover classification
irrigated agriculture
remote sensing
Sentinel-2
water management
- Language
The sustainability of irrigated water management is hampered by a lack of precise and timely information about irrigated crops and their applied water volumes. This is particularly crucial for arid and semi-arid regions of Mediterranean areas where water withdrawals (mostly from groundwater) are unknown, preventing water authorities from effectively planning and managing water use for agriculture. Remote sensing techniques have the potential to overcome such limitations allowing to monitor the crop biophysical parameters related with crop evapotranspiration and crop water use with suitable temporal and spatial resolution. In this study the performance of some Vegetation Indexes (VIs), to identify and mapping effectively irrigated areas in Southern Italy was investigated. VIs are extracted from Sentine1-2 images and relate to irrigated and non-irrigated olive groves in Apulian region being the leader Italian olive producer. Results show that VIs’ distributions (rainfed vs. irrigated) are significantly different as confirmed by t-test and k-Smirnov test (p-value ranging between 0.0001 and 0.03). The space-time variability of irrigated crops map retrieved from remote sensed data could support water authorities in managing water resource abstractions and reduce costly monitoring practices such as insitu inspections.