دورية أكاديمية
An algorithm to generate 2D bathymetry of an Alpine river for habitat suitability assessment
| العنوان: | An algorithm to generate 2D bathymetry of an Alpine river for habitat suitability assessment |
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| المؤلفون: | L. Stucchi, D. Fugazza, A. Sharifi, G. Traversa, G. Diolaiuti, D. Bocchiola |
| المساهمون: | L. Stucchi, D. Fugazza, A. Sharifi, G. Traversa, G. Diolaiuti, D. Bocchiola |
| بيانات النشر: | Elsevier |
| سنة النشر: | 2024 |
| المجموعة: | The University of Milan: Archivio Istituzionale della Ricerca (AIR) |
| مصطلحات موضوعية: | 2D riverbed generation, Habitat suitability, Hydraulic modelling, Perlin noise, Settore GEO/04 - Geografia Fisica e Geomorfologia, Settore ICAR/06 - Topografia e Cartografia, Settore ICAR/02 - Costruzioni Idrauliche e Marittime e Idrologia |
| الوصف: | Here we present an original approach to generate 2D high detail riverbed based on a drone photogrammetric survey, and RTK bathymetry measurements for Mera river in the Italian Alps. The aim is to better represent macro-roughness and riverbed structure of the river, also extending it to an ungauged area. Specifically, we apply a step-by-step approach. I) Depth and average slope of the riverbed were calculated from bathymetry data. II) Thus, a trapezoidal channel with constant slope and variable width was defined using the drone images. III) Riffle-pool sequence was assessed as a function of river width and applied to the generated channel. IV) Finally, the semi-random Perlin Noise was added to recreate riverbed irregularities in the natural stream. HEC-RAS 2D hydraulic software was then implemented to assess spatialized water depth and velocity. The proposed methodology could be quite relevant in river hydraulics to decouple roughness coefficient from water submergence, and in Physical Habitat Simulation Model (PHABSIM), where the dependency of the output is not linear with hydraulic parameters (i.e. water depth and velocity). Indeed, we apply PHABSIM for a case study of a stretch of the river and results are compared with a previous environmental study for Mera river. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/pmid/38325466; info:eu-repo/semantics/altIdentifier/wos/WOS:001183629800001; volume:918; firstpage:1; lastpage:14; numberofpages:14; journal:SCIENCE OF THE TOTAL ENVIRONMENT; https://hdl.handle.net/2434/1030232Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85184814304 |
| DOI: | 10.1016/j.scitotenv.2024.170703 |
| الإتاحة: | https://doi.org/10.1016/j.scitotenv.2024.170703Test https://hdl.handle.net/2434/1030232Test |
| حقوق: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.8A0DC776 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.scitotenv.2024.170703 |
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