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, 2014 This newsletter features articles on water-related science, policy, and law. Distributed to state agency representatives, faculty, students and interested citizens, it aims to provide current information, statistics, news, and notices related to water ...
Virginia Water Resources Research Center
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A Simple, Fully Automated Shoreline Detection Algorithm for High-Resolution Multi-Spectral Imagery
Remote Sensing, 2022 This paper develops and validates a new fully automated procedure for shoreline delineation from high-resolution multispectral satellite images. The model is based on a new water–land index, the Direct Difference Water Index (DDWI). A new technique based
Hazem Usama Abdelhady +3 more
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Remote Sensing, 2021 Hydrological connectivity is an important characteristic of wetlands that maintains the stability and functions of an ecosystem. This study investigates the temporal variations of hydrological connectivity and their driving mechanism in Baiyangdian Lake,
Ziqi Li +5 more
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Extracting Urban Water Bodies from Landsat Imagery Based on mNDWI and HSV Transformation
Remote Sensing, 2022 Urban water bodies are critical for sustainable urban ecological and social development. However, the complex compositions of urban land cover and small water bodies pose considerable challenges to urban water surface delineation.
Liwei Chang +5 more
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Remote Sensing, 2020 A comparative study of water indices and image classification algorithms for mapping inland water bodies using Landsat imagery was carried out through obtaining 24 high-resolution (≤5 m) and cloud-free images archived in Google Earth with the same (or ±1
Feifei Pan, Xiaohuan Xi, Cheng Wang
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Salmonellae as an Index of Pollution of Surface Waters [PDF]
Applied Microbiology, 1972 Screening enrichments of surface water specimens by means of a polyvalent fluorescent antibody reagent for the salmonellae yielded approximately 60% more positive specimens than was obtained by cultural procedures. It is not known what fraction of the excess of fluorescent antibody-positive over culturally positive specimens represents ...
W B, Cherry +5 more
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Evaluation of Water Extraction Indices Using Landsat Satellite Images (Case Study: Gamasiab River of Kermanshah) [PDF]
تحقیقات کاربردی علوم جغرافیایی, 2020 Water is one of most important human needs for life. According to importance of subject, discussion of management and utilization of water resources has become one of the most important global issues.
sayyad asghari +4 more
doaj
The Photochemical Reflectance Index (PRI) as a water-stress index
International Journal of Remote Sensing, 2002 Measurements of leaf reflectance in two narrow wavelength bands centred around 531 and 570 nm were carried out during withering of two contrasting functional and structural plant types: Chenopodium quinoa (Willd.) and Arbutus unedo (L.). The Photochemical Reflectance Index (PRI)=( R 531 - R 570 )/ ( R 531 + R 570 ) was calculated.
Thénot, Franck +2 more
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Remote Sensing, 2019 Due to the importance of coastline detection in coastal studies, different methods have been developed in recent decades in accordance with the evolution of measuring techniques such as remote sensing. This work proposes an automatic methodology with new
Sandra Paola Viaña-Borja +1 more
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A Generalized Water Quality Index for Taiwan [PDF]
Environmental Monitoring and Assessment, 2004 By exploring the behavior and limitations of conventional methods for quality evaluation, a better overall index for water quality in Taiwan and its application in Keya River are proposed. The thirteen variables are employed for the quality assessment.
Liou, Shiow-Mey +2 more
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