Flow routing in mangrove forests: field data obtained in Trang, Thailand

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Abstract

Mangroves grow in the intertidal parts of sheltered tropical coastlines, facilitating coastal stabilization and wave attenuation. Mangroves are widely threatened nowadays, although past studies have indicated their contribution to coastal safety. Most of these studies were based on numerical modeling however and a proper database with field observations is lacking yet. This paper presents part of the results of an extensive field campaign in a mangrove area in Trang Province, Thailand. The study area covers the outer border of an estuarine mangrove creek catchment. Data have been collected on elevation, vegetation, water levels, flow directions and flow velocities throughout this study area. Due to the tough conditions in the field, developing a suitable method for data collection and processing has been a major challenge in this study. Analysis of the hydrodynamic data uncovers the change of flow directions and velocities throughout a mangrove creek catchment over one tidal cycle. In the initial stages of flooding and the final stages of ebbing, creeks supply water to the lower elevated parts of the mangroves. In between these stages, the entire forest bordering the estuary is flooded and flow directions are perpendicular to the forest fringe. Flow velocities within the creeks are still substantially higher than those within the forest, as the creeks also supply water to the back mangroves. These insights in flow routing are promising for the future analysis of sediment input and distribution in mangroves.
Original languageEnglish
Title of host publicationNCK-days 2012. Crossing borders in coastal research. Jubilee conference proceedings 20th NCK-days, 13-16 March 2012 Enschede, The Netherlands
EditorsW.M. Kranenburg, E.M. Horstman, K.M. Wijnberg
Place of PublicationEnschede
PublisherUniversity of Twente
Pages147-151
ISBN (Print)978-90-365-3342-3
DOIs
Publication statusPublished - 13 Mar 2012
EventNCK-Days 2012: Crossing borders in coastal research - Enschede, Netherlands
Duration: 13 Mar 201216 Mar 2012

Publication series

Name
PublisherUniversity of Twente

Conference

ConferenceNCK-Days 2012
CountryNetherlands
CityEnschede
Period13/03/1216/03/12

Fingerprint

routing
mangrove
flow velocity
water supply
catchment
wave attenuation
tidal cycle
stabilization
water level
flooding
hydrodynamics
estuary
creek
safety
vegetation
coast
sediment
modeling

Keywords

  • METIS-285561
  • IR-81620

Cite this

Horstman, E., Dohmen-Janssen, C. M., Bouma, T. J., & Hulscher, S. J. M. H. (2012). Flow routing in mangrove forests: field data obtained in Trang, Thailand. In W. M. Kranenburg, E. M. Horstman, & K. M. Wijnberg (Eds.), NCK-days 2012. Crossing borders in coastal research. Jubilee conference proceedings 20th NCK-days, 13-16 March 2012 Enschede, The Netherlands (pp. 147-151). Enschede: University of Twente. https://doi.org/10.3990/2.186
Horstman, Erik ; Dohmen-Janssen, Catarine M. ; Bouma, T.J. ; Hulscher, Suzanne J.M.H. / Flow routing in mangrove forests: field data obtained in Trang, Thailand. NCK-days 2012. Crossing borders in coastal research. Jubilee conference proceedings 20th NCK-days, 13-16 March 2012 Enschede, The Netherlands. editor / W.M. Kranenburg ; E.M. Horstman ; K.M. Wijnberg. Enschede : University of Twente, 2012. pp. 147-151
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abstract = "Mangroves grow in the intertidal parts of sheltered tropical coastlines, facilitating coastal stabilization and wave attenuation. Mangroves are widely threatened nowadays, although past studies have indicated their contribution to coastal safety. Most of these studies were based on numerical modeling however and a proper database with field observations is lacking yet. This paper presents part of the results of an extensive field campaign in a mangrove area in Trang Province, Thailand. The study area covers the outer border of an estuarine mangrove creek catchment. Data have been collected on elevation, vegetation, water levels, flow directions and flow velocities throughout this study area. Due to the tough conditions in the field, developing a suitable method for data collection and processing has been a major challenge in this study. Analysis of the hydrodynamic data uncovers the change of flow directions and velocities throughout a mangrove creek catchment over one tidal cycle. In the initial stages of flooding and the final stages of ebbing, creeks supply water to the lower elevated parts of the mangroves. In between these stages, the entire forest bordering the estuary is flooded and flow directions are perpendicular to the forest fringe. Flow velocities within the creeks are still substantially higher than those within the forest, as the creeks also supply water to the back mangroves. These insights in flow routing are promising for the future analysis of sediment input and distribution in mangroves.",
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Horstman, E, Dohmen-Janssen, CM, Bouma, TJ & Hulscher, SJMH 2012, Flow routing in mangrove forests: field data obtained in Trang, Thailand. in WM Kranenburg, EM Horstman & KM Wijnberg (eds), NCK-days 2012. Crossing borders in coastal research. Jubilee conference proceedings 20th NCK-days, 13-16 March 2012 Enschede, The Netherlands. University of Twente, Enschede, pp. 147-151, NCK-Days 2012, Enschede, Netherlands, 13/03/12. https://doi.org/10.3990/2.186

Flow routing in mangrove forests: field data obtained in Trang, Thailand. / Horstman, Erik; Dohmen-Janssen, Catarine M.; Bouma, T.J.; Hulscher, Suzanne J.M.H.

NCK-days 2012. Crossing borders in coastal research. Jubilee conference proceedings 20th NCK-days, 13-16 March 2012 Enschede, The Netherlands. ed. / W.M. Kranenburg; E.M. Horstman; K.M. Wijnberg. Enschede : University of Twente, 2012. p. 147-151.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

TY - GEN

T1 - Flow routing in mangrove forests: field data obtained in Trang, Thailand

AU - Horstman, Erik

AU - Dohmen-Janssen, Catarine M.

AU - Bouma, T.J.

AU - Hulscher, Suzanne J.M.H.

PY - 2012/3/13

Y1 - 2012/3/13

N2 - Mangroves grow in the intertidal parts of sheltered tropical coastlines, facilitating coastal stabilization and wave attenuation. Mangroves are widely threatened nowadays, although past studies have indicated their contribution to coastal safety. Most of these studies were based on numerical modeling however and a proper database with field observations is lacking yet. This paper presents part of the results of an extensive field campaign in a mangrove area in Trang Province, Thailand. The study area covers the outer border of an estuarine mangrove creek catchment. Data have been collected on elevation, vegetation, water levels, flow directions and flow velocities throughout this study area. Due to the tough conditions in the field, developing a suitable method for data collection and processing has been a major challenge in this study. Analysis of the hydrodynamic data uncovers the change of flow directions and velocities throughout a mangrove creek catchment over one tidal cycle. In the initial stages of flooding and the final stages of ebbing, creeks supply water to the lower elevated parts of the mangroves. In between these stages, the entire forest bordering the estuary is flooded and flow directions are perpendicular to the forest fringe. Flow velocities within the creeks are still substantially higher than those within the forest, as the creeks also supply water to the back mangroves. These insights in flow routing are promising for the future analysis of sediment input and distribution in mangroves.

AB - Mangroves grow in the intertidal parts of sheltered tropical coastlines, facilitating coastal stabilization and wave attenuation. Mangroves are widely threatened nowadays, although past studies have indicated their contribution to coastal safety. Most of these studies were based on numerical modeling however and a proper database with field observations is lacking yet. This paper presents part of the results of an extensive field campaign in a mangrove area in Trang Province, Thailand. The study area covers the outer border of an estuarine mangrove creek catchment. Data have been collected on elevation, vegetation, water levels, flow directions and flow velocities throughout this study area. Due to the tough conditions in the field, developing a suitable method for data collection and processing has been a major challenge in this study. Analysis of the hydrodynamic data uncovers the change of flow directions and velocities throughout a mangrove creek catchment over one tidal cycle. In the initial stages of flooding and the final stages of ebbing, creeks supply water to the lower elevated parts of the mangroves. In between these stages, the entire forest bordering the estuary is flooded and flow directions are perpendicular to the forest fringe. Flow velocities within the creeks are still substantially higher than those within the forest, as the creeks also supply water to the back mangroves. These insights in flow routing are promising for the future analysis of sediment input and distribution in mangroves.

KW - METIS-285561

KW - IR-81620

U2 - 10.3990/2.186

DO - 10.3990/2.186

M3 - Conference contribution

SN - 978-90-365-3342-3

SP - 147

EP - 151

BT - NCK-days 2012. Crossing borders in coastal research. Jubilee conference proceedings 20th NCK-days, 13-16 March 2012 Enschede, The Netherlands

A2 - Kranenburg, W.M.

A2 - Horstman, E.M.

A2 - Wijnberg, K.M.

PB - University of Twente

CY - Enschede

ER -

Horstman E, Dohmen-Janssen CM, Bouma TJ, Hulscher SJMH. Flow routing in mangrove forests: field data obtained in Trang, Thailand. In Kranenburg WM, Horstman EM, Wijnberg KM, editors, NCK-days 2012. Crossing borders in coastal research. Jubilee conference proceedings 20th NCK-days, 13-16 March 2012 Enschede, The Netherlands. Enschede: University of Twente. 2012. p. 147-151 https://doi.org/10.3990/2.186