基于高分辨率遥感技术的土壤水分测定探索方法及其在植被SuDS中的应用前景

IF 1.6 3区环境科学与生态学 Q3 WATER RESOURCES

Urban Water Journal Pub Date : 2023-06-28 DOI:10.1080/1573062X.2023.2229292

C. Allende-Prieto, J. Roces-García, C. Recondo, L. A. Sañudo-Fontaneda, M. R. González-Moradas

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引用次数: 0

摘要

可持续排水系统(SuDS)监测通常是侵入性的，需要现场人员进行。遥感技术在土地利用系统中的应用仍然是一个有待进一步发展的领域，特别是基于植被的技术，在该领域还存在空白。本研究提出了一种结合合成孔径雷达(SAR)图像数据和现场测量数据的探索性方法来建立性能模型。利用后向散射系数(σ°)、温度、归一化植被指数(NDVI)和地形湿度指数(TWI)建立了土壤湿度的线性回归模型，其预测能力达到中高值，σ°和温度的预测范围为0.53 ~ 0.66。研究发现，影响最大的变量是温度。该研究为未来利用遥感工具进行基于植被的均匀植物SuDS监测开辟了道路，强调了进一步研究的必要性。

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An exploratory methodology based on high resolution remote sensing techniques for soil moisture determination with prospective applications in vegetative SuDS

ABSTRACT Sustainable Drainage Systems (SuDS) monitoring is very often intrusive and need onsite personnel to be carried out. The application of remote sensing in SuDS still is an area for further development, especially in vegetation-based techniques, representing a gap in the field. This research proposes an exploratory method combining Synthetic Aperture Radar (SAR) images data and onsite measurements to develop models of performance. Linear regression models were obtained for the computing of the soil moisture using the following variables: backscatter coefficient (σ°), temperature, normalized difference vegetation index (NDVI) and topographic wetness index (TWI), reaching medium to high values for its predictive capacity, ranging from 0.53 and 0.66 using σ° and temperature. The most influential variable was found to be the temperature. This investigation opens the path for future research in the use of remote sensing tools in vegetation-based SuDS monitoring with homogeneous plant species, highlighting the need for further research.

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来源期刊

Urban Water Journal WATER RESOURCES-

CiteScore

4.40

自引率

11.10%

发文量

101

审稿时长

3 months

期刊介绍： Urban Water Journal provides a forum for the research and professional communities dealing with water systems in the urban environment, directly contributing to the furtherance of sustainable development. Particular emphasis is placed on the analysis of interrelationships and interactions between the individual water systems, urban water bodies and the wider environment. The Journal encourages the adoption of an integrated approach, and system''s thinking to solve the numerous problems associated with sustainable urban water management. Urban Water Journal focuses on the water-related infrastructure in the city: namely potable water supply, treatment and distribution; wastewater collection, treatment and management, and environmental return; storm drainage and urban flood management. Specific topics of interest include: network design, optimisation, management, operation and rehabilitation; novel treatment processes for water and wastewater, resource recovery, treatment plant design and optimisation as well as treatment plants as part of the integrated urban water system; demand management and water efficiency, water recycling and source control; stormwater management, urban flood risk quantification and management; monitoring, utilisation and management of urban water bodies including groundwater; water-sensitive planning and design (including analysis of interactions of the urban water cycle with city planning and green infrastructure); resilience of the urban water system, long term scenarios to manage uncertainty, system stress testing; data needs, smart metering and sensors, advanced data analytics for knowledge discovery, quantification and management of uncertainty, smart technologies for urban water systems; decision-support and informatic tools;...