Temporal variability in mean transit time and transit time distributions assessed by a tracer-aided tank model of a meso-scale catchment
نویسندگان
چکیده
منابع مشابه
A review and evaluation of catchment transit time modeling
Transit time is a fundamental catchment descriptor that reveals information about storage, flow pathways and source of water in a single characteristic. Given the importance of transit time, little guidance exists for the application of transit time modeling in complex catchment systems. This paper presents an evaluation and review of the transit time literature in the context of catchments and...
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BACKGROUND Tracking an ingested magnet by the Magnet Tracking System MTS-1 (Motilis, Lausanne, Switzerland) is an easy and minimally-invasive method to assess gastrointestinal transit. The aim was to test the validity of MTS-1 for assessment of gastric transit time and small intestinal transit time, and to illustrate transit patterns detected by the system. METHODS A small magnet was ingested...
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Although the concepts of age, survival and transit time have been widely used in many fields, including population dynamics, chemical engineering, and hydrology, a comprehensive mathematical framework is still missing. Here we discuss several relationships among these quantities by starting from the evolution equation for the joint distribution of age and survival, from which the equations for ...
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In a diffusive geophysical flow, there is not a single timescale or unique pathway for passive scalar transport from the reservoir’s surface into the interior because of irreversible diffusive mixing processes. Instead, there is a range of pathways and hence a transit-time distribution (TTD) since last surface contact. We explore the issues that arise when considering TTDs for unsteady flows an...
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ژورنال
عنوان ژورنال: Hydrological Research Letters
سال: 2013
ISSN: 1882-3416
DOI: 10.3178/hrl.7.104