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1000 Titel
  • Technical note: Comparing three different methods for allocating river points to coarse-resolution hydrological modelling grid cells
1000 Autor/in
  1. Godet, Juliette |
  2. Gaume, Eric |
  3. Javelle, Pierre |
  4. Nicolle, Pierre |
  5. Payrastre, Olivier |
1000 Verlag
  • Copernicus Publications
1000 Erscheinungsjahr 2024
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2024-03-27
1000 Erschienen in
1000 Quellenangabe
  • 28(6):1403-1413
1000 Copyrightjahr
  • 2024
1000 Lizenz
1000 Verlagsversion
  • https://doi.org/10.5194/hess-28-1403-2024 |
1000 Publikationsstatus
1000 Begutachtungsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • <jats:p>Abstract. The allocation of points in a river network to pixels of a coarse-resolution hydrological modelling grid is a well-known issue, especially for hydrologists who use measurements at gauging stations to calibrate and validate distributed hydrological models. To address this issue, the traditional approach involves examining grid cells surrounding the considered river point and selecting the best candidate, based on distance and upstream drainage area as decision criteria. However, recent studies have suggested that focusing on basin boundaries rather than basin areas could prevent many allocation errors, even though the performance gain is rarely assessed. This paper compares different allocation methods and examines their relative performances. Three methods representing various families of methods have been designed: area-based, topology-based and contour-based methods. These methods are implemented to allocate 2580 river points to a 1 km hydrological modelling grid. These points are distributed along the entire hydrographic network of the French southeastern Mediterranean region, covering upstream drainage areas ranging from 5 to 3000 km2. The results indicate that the differences between the methods can be significant, especially for small upstream catchment areas. </jats:p>
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  1. Agence Nationale de la Recherche |
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    1000 Förderer Agence Nationale de la Recherche |
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    1000 Fördernummer -
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1000 Erstellt am 2024-05-23T21:03:03.937+0200
1000 Erstellt von 322
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1000 Zuletzt bearbeitet Mon May 27 12:03:41 CEST 2024
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