Hydraulic resistance versus flow depth in everglades hardwood halos

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The variation of the Manning roughness with flow depth in two hardwood-dominated vegetation halos that surround water-delivery structures in Everglades National Park was investigated. The results show that the hydraulic resistance of the halos decreases approximately linearly with increasing flow depth. For flow depths less than 15-20 cm, the hydraulic resistance is similarly high in both the halo and the downstream marsh vegetation, however, as the flow depth increases the hydraulic resistance in the halo decreases to below that in the downstream marsh. As a consequence, for increased stages at the delivery structure, the halo vegetation will become less restrictive relative to the marsh vegetation in controlling water deliveries.

Original languageEnglish
Pages (from-to)989-1002
Number of pages14
JournalWetlands
Volume31
Issue number5
DOIs
StatePublished - Oct 1 2011

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Hardwoods
Hydraulics
hydraulics
marsh
vegetation
Water
roughness
national park
Surface roughness
water

Keywords

  • Hardwood
  • Manning
  • Marsh
  • Model
  • Wetlands

ASJC Scopus subject areas

  • Ecology
  • Environmental Science(all)
  • Environmental Chemistry

Cite this

Hydraulic resistance versus flow depth in everglades hardwood halos. / Chin, David A.

In: Wetlands, Vol. 31, No. 5, 01.10.2011, p. 989-1002.

Research output: Contribution to journalArticle

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AB - The variation of the Manning roughness with flow depth in two hardwood-dominated vegetation halos that surround water-delivery structures in Everglades National Park was investigated. The results show that the hydraulic resistance of the halos decreases approximately linearly with increasing flow depth. For flow depths less than 15-20 cm, the hydraulic resistance is similarly high in both the halo and the downstream marsh vegetation, however, as the flow depth increases the hydraulic resistance in the halo decreases to below that in the downstream marsh. As a consequence, for increased stages at the delivery structure, the halo vegetation will become less restrictive relative to the marsh vegetation in controlling water deliveries.

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