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Dynamics of a wave-dominated tidal inlet and influence on adjacent beaches, Currumbin Creek, Gold Coast, Australia

Identifieur interne : 003E43 ( PascalFrancis/Corpus ); précédent : 003E42; suivant : 003E44

Dynamics of a wave-dominated tidal inlet and influence on adjacent beaches, Currumbin Creek, Gold Coast, Australia

Auteurs : Bruno Castelle ; Julien Bourget ; Nathalie Molnar ; Darrell Strauss ; Sophie Deschamps ; Rodger Tomlinson

Source :

RBID : Pascal:07-0057712

Descripteurs français

English descriptors

Abstract

Currumbin Creek on the Australian Gold Coast is a wave-dominated tidal inlet which exhibits a particularly active morphology. The recent history of Currumbin Creek entrance has seen rapid growth of the entrance for access to the ocean by fishermen, as a world class surfing site, and as a recreational area. Before the construction of two groynes in the 70's, Currumbin Creek entrance was highly variable in terms of inlet location and sand bar characteristics due to a cyclical behaviour of spit migration. Nowadays, the entrance is stabilised. However, natural processes continue with the entrance infilling causing flood and navigation issues, resulting in a regular dredging program to maintain an open entrance and for regular beach nourishment plans. This paper investigates the behaviour of the entrance and adjacent beaches from aerial photographs and numerical modelling. Before groyne construction, sand by-passing was intense resulting in channel migration and sometimes the closure of the mouth. After training works, the longshore drift is diverted further north from the mouth leading to new circulation patterns behind the headland. During fair weather conditions, the sand transported by the longshore current is trapped by Currumbin rock groyne resulting in a negative sediment budget in Palm Beach. For high energy conditions, the diverted longshore current splits in the southern Palm Beach, resulting in a circulation cell. The sediment of the southern beaches is stirred up and transported both northward and toward the inlet.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

pA  
A01 01  1    @0 0378-3839
A02 01      @0 COENDE
A03   1    @0 Coastal eng.
A05       @2 54
A06       @2 1
A08 01  1  ENG  @1 Dynamics of a wave-dominated tidal inlet and influence on adjacent beaches, Currumbin Creek, Gold Coast, Australia
A11 01  1    @1 CASTELLE (Bruno)
A11 02  1    @1 BOURGET (Julien)
A11 03  1    @1 MOLNAR (Nathalie)
A11 04  1    @1 STRAUSS (Darrell)
A11 05  1    @1 DESCHAMPS (Sophie)
A11 06  1    @1 TOMLINSON (Rodger)
A14 01      @1 Griffith Centre for Coastal Management, Gold Coast Campus. Griffith University, PMB 50 Gold Coast Mail Centre @2 Queensland 9726 @3 AUS @Z 1 aut. @Z 3 aut. @Z 4 aut. @Z 5 aut. @Z 6 aut.
A14 02      @1 UMR EPOC 4805, Avenue des Facultes @2 33405 Talence @3 FRA @Z 2 aut.
A20       @1 77-90
A21       @1 2007
A23 01      @0 ENG
A43 01      @1 INIST @2 17559 @5 354000159626820060
A44       @0 0000 @1 © 2007 INIST-CNRS. All rights reserved.
A45       @0 49 ref.
A47 01  1    @0 07-0057712
A60       @1 P
A61       @0 A
A64 01  1    @0 Coastal engineering
A66 01      @0 NLD
C01 01    ENG  @0 Currumbin Creek on the Australian Gold Coast is a wave-dominated tidal inlet which exhibits a particularly active morphology. The recent history of Currumbin Creek entrance has seen rapid growth of the entrance for access to the ocean by fishermen, as a world class surfing site, and as a recreational area. Before the construction of two groynes in the 70's, Currumbin Creek entrance was highly variable in terms of inlet location and sand bar characteristics due to a cyclical behaviour of spit migration. Nowadays, the entrance is stabilised. However, natural processes continue with the entrance infilling causing flood and navigation issues, resulting in a regular dredging program to maintain an open entrance and for regular beach nourishment plans. This paper investigates the behaviour of the entrance and adjacent beaches from aerial photographs and numerical modelling. Before groyne construction, sand by-passing was intense resulting in channel migration and sometimes the closure of the mouth. After training works, the longshore drift is diverted further north from the mouth leading to new circulation patterns behind the headland. During fair weather conditions, the sand transported by the longshore current is trapped by Currumbin rock groyne resulting in a negative sediment budget in Palm Beach. For high energy conditions, the diverted longshore current splits in the southern Palm Beach, resulting in a circulation cell. The sediment of the southern beaches is stirred up and transported both northward and toward the inlet.
C02 01  2    @0 226C02
C02 02  2    @0 226C01
C02 03  2    @0 001E01P02
C02 04  2    @0 001E01P01
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C03 01  2  ENG  @0 waves @5 01
C03 02  2  FRE  @0 Passe intertidale @5 02
C03 02  2  ENG  @0 tidal inlets @5 02
C03 02  2  SPA  @0 Estrecho mareal @5 02
C03 03  2  FRE  @0 Plage @5 03
C03 03  2  ENG  @0 beaches @5 03
C03 03  2  SPA  @0 Playa @5 03
C03 04  2  FRE  @0 Exposition @5 04
C03 04  2  ENG  @0 exhibits @5 04
C03 05  2  FRE  @0 Morphologie @5 05
C03 05  2  ENG  @0 morphology @5 05
C03 05  2  SPA  @0 Morfología @5 05
C03 06  2  FRE  @0 Croissance @5 06
C03 06  2  ENG  @0 growth @5 06
C03 07  2  FRE  @0 Bras mer @5 07
C03 07  2  ENG  @0 inlets @5 07
C03 07  2  SPA  @0 Brazo mar @5 07
C03 08  2  FRE  @0 Barre sableuse @5 08
C03 08  2  ENG  @0 sand bars @5 08
C03 09  2  FRE  @0 Flèche littorale @5 09
C03 09  2  ENG  @0 spits @5 09
C03 09  2  SPA  @0 Espiga litoral @5 09
C03 10  2  FRE  @0 Migration @5 10
C03 10  2  ENG  @0 migration @5 10
C03 10  2  SPA  @0 Migración @5 10
C03 11  2  FRE  @0 Crue @5 11
C03 11  2  ENG  @0 floods @5 11
C03 11  2  SPA  @0 Crecida @5 11
C03 12  2  FRE  @0 Navigation @5 12
C03 12  2  ENG  @0 navigation @5 12
C03 13  2  FRE  @0 Dragage @5 13
C03 13  2  ENG  @0 dredging @5 13
C03 13  2  SPA  @0 Dragado @5 13
C03 14  2  FRE  @0 Programme @5 14
C03 14  2  ENG  @0 programs @5 14
C03 14  2  SPA  @0 Programa @5 14
C03 15  2  FRE  @0 Photographie aérienne @5 15
C03 15  2  ENG  @0 aerial photography @5 15
C03 15  2  SPA  @0 Fotografía aérea @5 15
C03 16  2  FRE  @0 Modèle @5 16
C03 16  2  ENG  @0 models @5 16
C03 16  2  SPA  @0 Modelo @5 16
C03 17  2  FRE  @0 Sable @5 17
C03 17  2  ENG  @0 sand @5 17
C03 17  2  SPA  @0 Arena @5 17
C03 18  2  FRE  @0 Chenal @5 18
C03 18  2  ENG  @0 channels @5 18
C03 18  2  SPA  @0 Canal @5 18
C03 19  2  FRE  @0 Circulation @5 19
C03 19  2  ENG  @0 circulation @5 19
C03 20  2  FRE  @0 Transport @5 20
C03 20  2  ENG  @0 transport @5 20
C03 20  2  SPA  @0 Transporte @5 20
C03 21  2  FRE  @0 Courant littoral @5 21
C03 21  2  ENG  @0 longshore currents @5 21
C03 21  2  SPA  @0 Corriente litoral @5 21
C03 22  2  FRE  @0 Energie @5 22
C03 22  2  ENG  @0 energy @5 22
C03 22  2  SPA  @0 Energía @5 22
C03 23  2  FRE  @0 Erosion @5 23
C03 23  2  ENG  @0 erosion @5 23
C03 23  2  SPA  @0 Erosión @5 23
C03 24  2  FRE  @0 Australie @2 NG @5 61
C03 24  2  ENG  @0 Australia @2 NG @5 61
C03 24  2  SPA  @0 Australia @2 NG @5 61
C07 01  2  FRE  @0 Australasie
C07 01  2  ENG  @0 Australasia
C07 01  2  SPA  @0 Australasia
N21       @1 036
N44 01      @1 OTO
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Format Inist (serveur)

NO : PASCAL 07-0057712 INIST
ET : Dynamics of a wave-dominated tidal inlet and influence on adjacent beaches, Currumbin Creek, Gold Coast, Australia
AU : CASTELLE (Bruno); BOURGET (Julien); MOLNAR (Nathalie); STRAUSS (Darrell); DESCHAMPS (Sophie); TOMLINSON (Rodger)
AF : Griffith Centre for Coastal Management, Gold Coast Campus. Griffith University, PMB 50 Gold Coast Mail Centre/Queensland 9726/Australie (1 aut., 3 aut., 4 aut., 5 aut., 6 aut.); UMR EPOC 4805, Avenue des Facultes/33405 Talence/France (2 aut.)
DT : Publication en série; Niveau analytique
SO : Coastal engineering; ISSN 0378-3839; Coden COENDE; Pays-Bas; Da. 2007; Vol. 54; No. 1; Pp. 77-90; Bibl. 49 ref.
LA : Anglais
EA : Currumbin Creek on the Australian Gold Coast is a wave-dominated tidal inlet which exhibits a particularly active morphology. The recent history of Currumbin Creek entrance has seen rapid growth of the entrance for access to the ocean by fishermen, as a world class surfing site, and as a recreational area. Before the construction of two groynes in the 70's, Currumbin Creek entrance was highly variable in terms of inlet location and sand bar characteristics due to a cyclical behaviour of spit migration. Nowadays, the entrance is stabilised. However, natural processes continue with the entrance infilling causing flood and navigation issues, resulting in a regular dredging program to maintain an open entrance and for regular beach nourishment plans. This paper investigates the behaviour of the entrance and adjacent beaches from aerial photographs and numerical modelling. Before groyne construction, sand by-passing was intense resulting in channel migration and sometimes the closure of the mouth. After training works, the longshore drift is diverted further north from the mouth leading to new circulation patterns behind the headland. During fair weather conditions, the sand transported by the longshore current is trapped by Currumbin rock groyne resulting in a negative sediment budget in Palm Beach. For high energy conditions, the diverted longshore current splits in the southern Palm Beach, resulting in a circulation cell. The sediment of the southern beaches is stirred up and transported both northward and toward the inlet.
CC : 226C02; 226C01; 001E01P02; 001E01P01
FD : Onde; Passe intertidale; Plage; Exposition; Morphologie; Croissance; Bras mer; Barre sableuse; Flèche littorale; Migration; Crue; Navigation; Dragage; Programme; Photographie aérienne; Modèle; Sable; Chenal; Circulation; Transport; Courant littoral; Energie; Erosion; Australie
FG : Australasie
ED : waves; tidal inlets; beaches; exhibits; morphology; growth; inlets; sand bars; spits; migration; floods; navigation; dredging; programs; aerial photography; models; sand; channels; circulation; transport; longshore currents; energy; erosion; Australia
EG : Australasia
SD : Estrecho mareal; Playa; Morfología; Brazo mar; Espiga litoral; Migración; Crecida; Dragado; Programa; Fotografía aérea; Modelo; Arena; Canal; Transporte; Corriente litoral; Energía; Erosión; Australia
LO : INIST-17559.354000159626820060
ID : 07-0057712

Links to Exploration step

Pascal:07-0057712

Le document en format XML

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<term>exhibits</term>
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<div type="abstract" xml:lang="en">Currumbin Creek on the Australian Gold Coast is a wave-dominated tidal inlet which exhibits a particularly active morphology. The recent history of Currumbin Creek entrance has seen rapid growth of the entrance for access to the ocean by fishermen, as a world class surfing site, and as a recreational area. Before the construction of two groynes in the 70's, Currumbin Creek entrance was highly variable in terms of inlet location and sand bar characteristics due to a cyclical behaviour of spit migration. Nowadays, the entrance is stabilised. However, natural processes continue with the entrance infilling causing flood and navigation issues, resulting in a regular dredging program to maintain an open entrance and for regular beach nourishment plans. This paper investigates the behaviour of the entrance and adjacent beaches from aerial photographs and numerical modelling. Before groyne construction, sand by-passing was intense resulting in channel migration and sometimes the closure of the mouth. After training works, the longshore drift is diverted further north from the mouth leading to new circulation patterns behind the headland. During fair weather conditions, the sand transported by the longshore current is trapped by Currumbin rock groyne resulting in a negative sediment budget in Palm Beach. For high energy conditions, the diverted longshore current splits in the southern Palm Beach, resulting in a circulation cell. The sediment of the southern beaches is stirred up and transported both northward and toward the inlet.</div>
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<s1>Griffith Centre for Coastal Management, Gold Coast Campus. Griffith University, PMB 50 Gold Coast Mail Centre</s1>
<s2>Queensland 9726</s2>
<s3>AUS</s3>
<sZ>1 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
</fA14>
<fA14 i1="02">
<s1>UMR EPOC 4805, Avenue des Facultes</s1>
<s2>33405 Talence</s2>
<s3>FRA</s3>
<sZ>2 aut.</sZ>
</fA14>
<fA20>
<s1>77-90</s1>
</fA20>
<fA21>
<s1>2007</s1>
</fA21>
<fA23 i1="01">
<s0>ENG</s0>
</fA23>
<fA43 i1="01">
<s1>INIST</s1>
<s2>17559</s2>
<s5>354000159626820060</s5>
</fA43>
<fA44>
<s0>0000</s0>
<s1>© 2007 INIST-CNRS. All rights reserved.</s1>
</fA44>
<fA45>
<s0>49 ref.</s0>
</fA45>
<fA47 i1="01" i2="1">
<s0>07-0057712</s0>
</fA47>
<fA60>
<s1>P</s1>
</fA60>
<fA61>
<s0>A</s0>
</fA61>
<fA64 i1="01" i2="1">
<s0>Coastal engineering</s0>
</fA64>
<fA66 i1="01">
<s0>NLD</s0>
</fA66>
<fC01 i1="01" l="ENG">
<s0>Currumbin Creek on the Australian Gold Coast is a wave-dominated tidal inlet which exhibits a particularly active morphology. The recent history of Currumbin Creek entrance has seen rapid growth of the entrance for access to the ocean by fishermen, as a world class surfing site, and as a recreational area. Before the construction of two groynes in the 70's, Currumbin Creek entrance was highly variable in terms of inlet location and sand bar characteristics due to a cyclical behaviour of spit migration. Nowadays, the entrance is stabilised. However, natural processes continue with the entrance infilling causing flood and navigation issues, resulting in a regular dredging program to maintain an open entrance and for regular beach nourishment plans. This paper investigates the behaviour of the entrance and adjacent beaches from aerial photographs and numerical modelling. Before groyne construction, sand by-passing was intense resulting in channel migration and sometimes the closure of the mouth. After training works, the longshore drift is diverted further north from the mouth leading to new circulation patterns behind the headland. During fair weather conditions, the sand transported by the longshore current is trapped by Currumbin rock groyne resulting in a negative sediment budget in Palm Beach. For high energy conditions, the diverted longshore current splits in the southern Palm Beach, resulting in a circulation cell. The sediment of the southern beaches is stirred up and transported both northward and toward the inlet.</s0>
</fC01>
<fC02 i1="01" i2="2">
<s0>226C02</s0>
</fC02>
<fC02 i1="02" i2="2">
<s0>226C01</s0>
</fC02>
<fC02 i1="03" i2="2">
<s0>001E01P02</s0>
</fC02>
<fC02 i1="04" i2="2">
<s0>001E01P01</s0>
</fC02>
<fC03 i1="01" i2="2" l="FRE">
<s0>Onde</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="2" l="ENG">
<s0>waves</s0>
<s5>01</s5>
</fC03>
<fC03 i1="02" i2="2" l="FRE">
<s0>Passe intertidale</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="2" l="ENG">
<s0>tidal inlets</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="2" l="SPA">
<s0>Estrecho mareal</s0>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="2" l="FRE">
<s0>Plage</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="2" l="ENG">
<s0>beaches</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="2" l="SPA">
<s0>Playa</s0>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="2" l="FRE">
<s0>Exposition</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="2" l="ENG">
<s0>exhibits</s0>
<s5>04</s5>
</fC03>
<fC03 i1="05" i2="2" l="FRE">
<s0>Morphologie</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="2" l="ENG">
<s0>morphology</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="2" l="SPA">
<s0>Morfología</s0>
<s5>05</s5>
</fC03>
<fC03 i1="06" i2="2" l="FRE">
<s0>Croissance</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="2" l="ENG">
<s0>growth</s0>
<s5>06</s5>
</fC03>
<fC03 i1="07" i2="2" l="FRE">
<s0>Bras mer</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="2" l="ENG">
<s0>inlets</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="2" l="SPA">
<s0>Brazo mar</s0>
<s5>07</s5>
</fC03>
<fC03 i1="08" i2="2" l="FRE">
<s0>Barre sableuse</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="2" l="ENG">
<s0>sand bars</s0>
<s5>08</s5>
</fC03>
<fC03 i1="09" i2="2" l="FRE">
<s0>Flèche littorale</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="2" l="ENG">
<s0>spits</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="2" l="SPA">
<s0>Espiga litoral</s0>
<s5>09</s5>
</fC03>
<fC03 i1="10" i2="2" l="FRE">
<s0>Migration</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="2" l="ENG">
<s0>migration</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="2" l="SPA">
<s0>Migración</s0>
<s5>10</s5>
</fC03>
<fC03 i1="11" i2="2" l="FRE">
<s0>Crue</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="2" l="ENG">
<s0>floods</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="2" l="SPA">
<s0>Crecida</s0>
<s5>11</s5>
</fC03>
<fC03 i1="12" i2="2" l="FRE">
<s0>Navigation</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="2" l="ENG">
<s0>navigation</s0>
<s5>12</s5>
</fC03>
<fC03 i1="13" i2="2" l="FRE">
<s0>Dragage</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="2" l="ENG">
<s0>dredging</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="2" l="SPA">
<s0>Dragado</s0>
<s5>13</s5>
</fC03>
<fC03 i1="14" i2="2" l="FRE">
<s0>Programme</s0>
<s5>14</s5>
</fC03>
<fC03 i1="14" i2="2" l="ENG">
<s0>programs</s0>
<s5>14</s5>
</fC03>
<fC03 i1="14" i2="2" l="SPA">
<s0>Programa</s0>
<s5>14</s5>
</fC03>
<fC03 i1="15" i2="2" l="FRE">
<s0>Photographie aérienne</s0>
<s5>15</s5>
</fC03>
<fC03 i1="15" i2="2" l="ENG">
<s0>aerial photography</s0>
<s5>15</s5>
</fC03>
<fC03 i1="15" i2="2" l="SPA">
<s0>Fotografía aérea</s0>
<s5>15</s5>
</fC03>
<fC03 i1="16" i2="2" l="FRE">
<s0>Modèle</s0>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="2" l="ENG">
<s0>models</s0>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="2" l="SPA">
<s0>Modelo</s0>
<s5>16</s5>
</fC03>
<fC03 i1="17" i2="2" l="FRE">
<s0>Sable</s0>
<s5>17</s5>
</fC03>
<fC03 i1="17" i2="2" l="ENG">
<s0>sand</s0>
<s5>17</s5>
</fC03>
<fC03 i1="17" i2="2" l="SPA">
<s0>Arena</s0>
<s5>17</s5>
</fC03>
<fC03 i1="18" i2="2" l="FRE">
<s0>Chenal</s0>
<s5>18</s5>
</fC03>
<fC03 i1="18" i2="2" l="ENG">
<s0>channels</s0>
<s5>18</s5>
</fC03>
<fC03 i1="18" i2="2" l="SPA">
<s0>Canal</s0>
<s5>18</s5>
</fC03>
<fC03 i1="19" i2="2" l="FRE">
<s0>Circulation</s0>
<s5>19</s5>
</fC03>
<fC03 i1="19" i2="2" l="ENG">
<s0>circulation</s0>
<s5>19</s5>
</fC03>
<fC03 i1="20" i2="2" l="FRE">
<s0>Transport</s0>
<s5>20</s5>
</fC03>
<fC03 i1="20" i2="2" l="ENG">
<s0>transport</s0>
<s5>20</s5>
</fC03>
<fC03 i1="20" i2="2" l="SPA">
<s0>Transporte</s0>
<s5>20</s5>
</fC03>
<fC03 i1="21" i2="2" l="FRE">
<s0>Courant littoral</s0>
<s5>21</s5>
</fC03>
<fC03 i1="21" i2="2" l="ENG">
<s0>longshore currents</s0>
<s5>21</s5>
</fC03>
<fC03 i1="21" i2="2" l="SPA">
<s0>Corriente litoral</s0>
<s5>21</s5>
</fC03>
<fC03 i1="22" i2="2" l="FRE">
<s0>Energie</s0>
<s5>22</s5>
</fC03>
<fC03 i1="22" i2="2" l="ENG">
<s0>energy</s0>
<s5>22</s5>
</fC03>
<fC03 i1="22" i2="2" l="SPA">
<s0>Energía</s0>
<s5>22</s5>
</fC03>
<fC03 i1="23" i2="2" l="FRE">
<s0>Erosion</s0>
<s5>23</s5>
</fC03>
<fC03 i1="23" i2="2" l="ENG">
<s0>erosion</s0>
<s5>23</s5>
</fC03>
<fC03 i1="23" i2="2" l="SPA">
<s0>Erosión</s0>
<s5>23</s5>
</fC03>
<fC03 i1="24" i2="2" l="FRE">
<s0>Australie</s0>
<s2>NG</s2>
<s5>61</s5>
</fC03>
<fC03 i1="24" i2="2" l="ENG">
<s0>Australia</s0>
<s2>NG</s2>
<s5>61</s5>
</fC03>
<fC03 i1="24" i2="2" l="SPA">
<s0>Australia</s0>
<s2>NG</s2>
<s5>61</s5>
</fC03>
<fC07 i1="01" i2="2" l="FRE">
<s0>Australasie</s0>
</fC07>
<fC07 i1="01" i2="2" l="ENG">
<s0>Australasia</s0>
</fC07>
<fC07 i1="01" i2="2" l="SPA">
<s0>Australasia</s0>
</fC07>
<fN21>
<s1>036</s1>
</fN21>
<fN44 i1="01">
<s1>OTO</s1>
</fN44>
<fN82>
<s1>OTO</s1>
</fN82>
</pA>
</standard>
<server>
<NO>PASCAL 07-0057712 INIST</NO>
<ET>Dynamics of a wave-dominated tidal inlet and influence on adjacent beaches, Currumbin Creek, Gold Coast, Australia</ET>
<AU>CASTELLE (Bruno); BOURGET (Julien); MOLNAR (Nathalie); STRAUSS (Darrell); DESCHAMPS (Sophie); TOMLINSON (Rodger)</AU>
<AF>Griffith Centre for Coastal Management, Gold Coast Campus. Griffith University, PMB 50 Gold Coast Mail Centre/Queensland 9726/Australie (1 aut., 3 aut., 4 aut., 5 aut., 6 aut.); UMR EPOC 4805, Avenue des Facultes/33405 Talence/France (2 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Coastal engineering; ISSN 0378-3839; Coden COENDE; Pays-Bas; Da. 2007; Vol. 54; No. 1; Pp. 77-90; Bibl. 49 ref.</SO>
<LA>Anglais</LA>
<EA>Currumbin Creek on the Australian Gold Coast is a wave-dominated tidal inlet which exhibits a particularly active morphology. The recent history of Currumbin Creek entrance has seen rapid growth of the entrance for access to the ocean by fishermen, as a world class surfing site, and as a recreational area. Before the construction of two groynes in the 70's, Currumbin Creek entrance was highly variable in terms of inlet location and sand bar characteristics due to a cyclical behaviour of spit migration. Nowadays, the entrance is stabilised. However, natural processes continue with the entrance infilling causing flood and navigation issues, resulting in a regular dredging program to maintain an open entrance and for regular beach nourishment plans. This paper investigates the behaviour of the entrance and adjacent beaches from aerial photographs and numerical modelling. Before groyne construction, sand by-passing was intense resulting in channel migration and sometimes the closure of the mouth. After training works, the longshore drift is diverted further north from the mouth leading to new circulation patterns behind the headland. During fair weather conditions, the sand transported by the longshore current is trapped by Currumbin rock groyne resulting in a negative sediment budget in Palm Beach. For high energy conditions, the diverted longshore current splits in the southern Palm Beach, resulting in a circulation cell. The sediment of the southern beaches is stirred up and transported both northward and toward the inlet.</EA>
<CC>226C02; 226C01; 001E01P02; 001E01P01</CC>
<FD>Onde; Passe intertidale; Plage; Exposition; Morphologie; Croissance; Bras mer; Barre sableuse; Flèche littorale; Migration; Crue; Navigation; Dragage; Programme; Photographie aérienne; Modèle; Sable; Chenal; Circulation; Transport; Courant littoral; Energie; Erosion; Australie</FD>
<FG>Australasie</FG>
<ED>waves; tidal inlets; beaches; exhibits; morphology; growth; inlets; sand bars; spits; migration; floods; navigation; dredging; programs; aerial photography; models; sand; channels; circulation; transport; longshore currents; energy; erosion; Australia</ED>
<EG>Australasia</EG>
<SD>Estrecho mareal; Playa; Morfología; Brazo mar; Espiga litoral; Migración; Crecida; Dragado; Programa; Fotografía aérea; Modelo; Arena; Canal; Transporte; Corriente litoral; Energía; Erosión; Australia</SD>
<LO>INIST-17559.354000159626820060</LO>
<ID>07-0057712</ID>
</server>
</inist>
</record>

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