气候变化领域集成服务门户(CCPortal): Irrigation Detection Using Sentinel-1 and Sentinel-2 Time Series on Fruit Tree Orchards

CCPortal

DOI	10.3390/rs16030458
	Irrigation Detection Using Sentinel-1 and Sentinel-2 Time Series on Fruit Tree Orchards
	Chakhar, Amal; Hernandez-Lopez, David; Ballesteros, Rocio; Moreno, Miguel A.
发表日期	2024
EISSN	2072-4292
起始页码	16
结束页码	3
卷号	16 期号:3
英文摘要	In arid and semi-arid regions, irrigation is crucial to mitigate water stress and yield loss. However, the overexploitation of water resources by the agricultural sector together with the climate change effects can lead to water scarcity. Effective regional water management depends on estimating irrigation demand using maps of irrigable areas or national and regional statistics of irrigated areas. These statistical data are not always of reliable quality because they generally do not reflect the updated spatial distribution of irrigated and rainfed fields. In this context, remote sensing provides reliable methods for gathering useful agricultural information from derived records. The combined use of optical and radar Earth Observation data enhances the probability of detecting irrigation events, which can improve the accuracy of irrigation mapping. Hence, we aimed to utilize Sentinel-1 (VV and VH) and Sentinel-2 (NDVI) data to classify irrigated fruit trees and rainfed ones in a study area located in the Castilla La-Mancha region in Spain. To obtain these time-series data from Sentinel-1 and Sentinel-2, which constitute the input data for the classification algorithms, a tool has been developed for automating the download from the Sentinel Hub. This tool downloads products organized by tiles for the region of interest and for the entire required time-series, ensuring the spatial repeatability of each pixel across all products and dates. The classification of irrigated plots was carried out by SVM Support Vector Machine. The employed methodology displayed promising results, with an overall accuracy of 88.4%, indicating the methodology's ability to detect irrigation over orchards that were declared as non-irrigated. These results were evaluated by applying the change detection method of the sigma p0 backscattering coefficient at plot scale.
英文关键词	Sentinel-1; Sentinel-2; irrigation detection; Sentinel hub; classification; SVM; fruit tree orchards; NDVI; VV; VH
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:001160112200001
来源期刊	REMOTE SENSING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/302430
作者单位	Universidad de Castilla-La Mancha
推荐引用方式 GB/T 7714	Chakhar, Amal,Hernandez-Lopez, David,Ballesteros, Rocio,et al. Irrigation Detection Using Sentinel-1 and Sentinel-2 Time Series on Fruit Tree Orchards[J],2024,16(3).
APA	Chakhar, Amal,Hernandez-Lopez, David,Ballesteros, Rocio,&Moreno, Miguel A..(2024).Irrigation Detection Using Sentinel-1 and Sentinel-2 Time Series on Fruit Tree Orchards.REMOTE SENSING,16(3).
MLA	Chakhar, Amal,et al."Irrigation Detection Using Sentinel-1 and Sentinel-2 Time Series on Fruit Tree Orchards".REMOTE SENSING 16.3(2024).