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المؤلفZahraa, Al-Ali
المؤلفAbulibdeh, Ammar
المؤلفAl-Awadhi, Talal
المؤلفMohan, Midhun
المؤلفAl Nasiri, Noura
المؤلفAl-Barwani, Mohammed
المؤلفAl Nabbi, Sara
المؤلفAbdullah, Meshal
تاريخ الإتاحة2024-06-02T06:34:15Z
تاريخ النشر2024-05-07
اسم المنشورInternational Journal of Applied Earth Observation and Geoinformation
المعرّفhttp://dx.doi.org/10.1016/j.jag.2024.103887
الاقتباسAl-Ali, Z., Abulibdeh, A., Al-Awadhi, T., Mohan, M., Al Nasiri, N., Al-Barwani, M., ... & Abdullah, M. (2024). Examining the potential and effectiveness of water indices using multispectral sentinel-2 data to detect soil moisture as an indicator of mudflow occurrence in arid regions. International Journal of Applied Earth Observation and Geoinformation, 130, 103887.
الرقم المعياري الدولي للكتاب1569-8432
معرّف المصادر الموحدhttps://www.sciencedirect.com/science/article/pii/S1569843224002413
معرّف المصادر الموحدhttp://hdl.handle.net/10576/55709
الملخصThis study aims to evaluate the performance and effectiveness of six spectral water indices - derived from Multispectral sentinel-2 data - to detect soil moisture and inundated area in arid regions to be used as an indicator of mudflow phenomena to predict high-risk areas. Herein, the validation of the performance of spectral indices was conducted using threshold method, spectral curve performance, and soil-line method. These indirect validation techniques play a key role in saving time, effort, and cost, particularly for large-scale and inaccessible areas. It was observed that the Normalized Difference Water Index (NDWI), Modified Normalized Difference Water Index (mNDWI), and RSWIR indices have the potential to detect soil moisture and inundated areas in arid regions. According to the temporal spectral curve performance, the spectral characteristics of water and soil moisture were distinct in the Near infrared (NIR) and Short-wave Infrared (SWIR1,2) bands. However, the rate and degree differed between these bands, depending on the amount of water in the soil. Furthermore, the soil line method supported the appropriate selection of threshold values to detect soil moisture. However, the threshold values varied with location, time, season, and between indices. We concluded that considering the factors influencing the behavior of water and soil reflectivity could support decision-makers in identifying high-risk mudflow locations.
اللغةen
الناشرElsevier
الموضوعSpectral reflectance curve
Soil-line method
Spectral indices
Flood
Shaheen cyclone
العنوانExamining the potential and effectiveness of water indices using multispectral sentinel-2 data to detect soil moisture as an indicator of mudflow occurrence in arid regions
النوعArticle
رقم المجلد130
Open Access user License http://creativecommons.org/licenses/by/4.0/
ESSN1872-826X
dc.accessType Open Access


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