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    Delineation of Pothole-Dominated Wetlands and Modeling of Their Threshold Behaviors

    Source: Journal of Hydrologic Engineering:;2017:;Volume ( 022 ):;issue: 001
    Author:
    Xuefeng Chu
    DOI: 10.1061/(ASCE)HE.1943-5584.0001224
    Publisher: American Society of Civil Engineers
    Abstract: Time-invariant contributing area and full hydrologic connectivity are commonly assumed in traditional watershed delineation and modeling. In reality, however, contributing area of a depression-dominated prairie basin varies and undergoes a progressive evolution process that is characterized by unique threshold behaviors associated with the depression filling–spilling–merging–splitting–depleting dynamics. The research reported in this paper aims to precisely delineate prairie potholes and the associated wetlands, effectively characterize their dynamic hydrotopographic properties, and further quantify the resultant threshold behaviors and spatiotemporal variability in hydrologic connectivity. Delineation and modeling for a wetland site in the Prairie Pothole Region (PPR) highlighted the crucial role of topographic characteristics in the formation, evolution, and connectivity of prairie potholes. Particularly, the modeling tests for real rainfall demonstrated the significant impacts of complex rainfall patterns on the behavior of a PPR wetland system and the dynamic filling, spilling, merging, splitting, and depleting processes of potholes. The research reported in this paper provides an effective tool for dynamic pothole wetland delineation and hierarchical modeling, which can be potentially used for ecohydrologic modeling and assessment.
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      Delineation of Pothole-Dominated Wetlands and Modeling of Their Threshold Behaviors

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    contributor authorXuefeng Chu
    date accessioned2017-05-08T22:26:03Z
    date available2017-05-08T22:26:03Z
    date copyrightJanuary 2017
    date issued2017
    identifier other44897824.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/80580
    description abstractTime-invariant contributing area and full hydrologic connectivity are commonly assumed in traditional watershed delineation and modeling. In reality, however, contributing area of a depression-dominated prairie basin varies and undergoes a progressive evolution process that is characterized by unique threshold behaviors associated with the depression filling–spilling–merging–splitting–depleting dynamics. The research reported in this paper aims to precisely delineate prairie potholes and the associated wetlands, effectively characterize their dynamic hydrotopographic properties, and further quantify the resultant threshold behaviors and spatiotemporal variability in hydrologic connectivity. Delineation and modeling for a wetland site in the Prairie Pothole Region (PPR) highlighted the crucial role of topographic characteristics in the formation, evolution, and connectivity of prairie potholes. Particularly, the modeling tests for real rainfall demonstrated the significant impacts of complex rainfall patterns on the behavior of a PPR wetland system and the dynamic filling, spilling, merging, splitting, and depleting processes of potholes. The research reported in this paper provides an effective tool for dynamic pothole wetland delineation and hierarchical modeling, which can be potentially used for ecohydrologic modeling and assessment.
    publisherAmerican Society of Civil Engineers
    titleDelineation of Pothole-Dominated Wetlands and Modeling of Their Threshold Behaviors
    typeJournal Paper
    journal volume22
    journal issue1
    journal titleJournal of Hydrologic Engineering
    identifier doi10.1061/(ASCE)HE.1943-5584.0001224
    treeJournal of Hydrologic Engineering:;2017:;Volume ( 022 ):;issue: 001
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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