Brunswick River
Physical characteristics
Entrance
location | Latitude (ºS) | -28.54 |
|---|
| Longitude (ºE) | 153.56 |
|---|
| Catchment area (km2)1 | 226.3 |
|---|
| Estuary area (km2)1,2 | 3.6 |
|---|
| Estuary volume (ML)3 | 4267.9 |
|---|
| Average depth (m)4 | 1.3 |
|---|
| Roy et al. (2001) classification5 | III/5/D |
|---|
| Entrance condition6 | O/T |
|---|
Notes:
- Derived from DECCW (2010) NSW estuaries and coastal catchments spatial database.
- Includes area mapped as open water (see note 1), mangrove and saltmarsh areas (Creese R. G., Glasby T. M., West G. and Gallen C. (2009) Mapping the habitats of NSW estuaries. Industry & Investment NSW Fisheries Final Report Series 113. Port Stephens, NSW, Australia.
- Based on areas at 0.6 m AHD (Roper T., Creese B., Scanes P., Stephens K., Williams R., Dela-Cruz J., Coade G. and Coates B. (2011) Assessing the condition of estuaries and coastal lake ecosystems in NSW. Office of Environment and Heritage, Sydney).
- Estimated by dividing the total volume at 0.6 m AHD by the total surface area of the estuary including mangrove areas but excluding saltmarsh (Roper et al., 2011)
- Estuary group: I = oceanic embayment, II = tide dominated estuary, III = wave dominated estuary, IV = intermittently closed estuary V = freshwater bodies
Estuary type: 1 = ocean embayments, 3 = drowned valley estuary, 5 = barrier estuary, 6 = barrier lagoon, 7 = interbarrier estuary, 8 = saline coastal lagoon, 9 = small coastal creeks, 11 = brackish barrier lake. Evolution stage: A=youthful, B=intermediate, C=semi-mature, D=mature.
(P. S. Roy, R. J. Williams, A. R. Jones, I. Yassini, P. J. Gibbs, B. Coates, R. J. West, P. R. Scanes, J. P. Hudson and S. Nichol (2001) Structure and Function of South-east Australian Estuaries. Estuarine, Coastal and Shelf Science 53, 351-384)
- Entrance conditions: O = open, T = trained, I = intermittent.
|
Tidal prism
The volume of water moving
past a fixed cross section during each flood tide or ebb tide (i.e.
slack water to slack water), is referred to as the tidal prism of an
estuary.
The following table shows
the measured tidal prism at the location specified, along with the
tidal range for near the measurement site and at Sydney Harbour.
Location: 320m upstream from the entrance on 31/8/07
| Tide state | Flow
(106 m3) | Local
tidal range (m) | Sydney Harbour
tidal range (m) |
|---|
| Ebb flow | 2.08 | 1.34 | 1.33 |
| Flood flow | 2 | 1.45 | 1.38 |
Tidal survey
Tidal surveys measure the hydrodynamic behaviour of an estuary during a full tidal cycle. The parameters measured include velocity, water levels, salinity, temperature and pH.
The following tidal surveys have been undertaken on this estuary. A map shows the location and plots of the flows and water levels for the most comprehensive survey.
Copies of tidal survey reports are available from the Estuary Management Program.
| Date | Data collected | Figure | Report |
|---|
| Jan to Feb 1976 | Float tracking, spot velocities, water levels and cross sections. | - | MHL271 |
| Mar 1977 | Current metering at two lines tidal velocity, discharge, cross section, four tideboards, temperature and salinity and suspended sediment samples. | - | MHL230 |
| Sep 1983 | Current metering over a full tidal cycle on six lines, nine tideboards, temperature/salinity, sediment sampling, dissolved oxygen readings. | - | MHL385 |
| Jul 1994 | Current metering, drogue tracking and water quality. | - | MHL711 |
| Oct 1994 | Current metering, drogue tracking and water quality. | - | MHL711 |
| Mar 1997 to Mar 1999 | Brunswick River Water Quality Monitoring. | - | MHL1000 |
| Apr to Nov 2007 | Extensive data collection: water levels at thirteen sites; velocities at five sites and water quality profiles at thirty-two sites. | 1988-04.pdf | MHL1787 |
Hydrographic survey
The hydrographic survey provides the depth and physical characteristics of the estuary.
The metadata associated with the survey can be found on the map sheets provided.
| Map sheet number | Description | Scale | Size |
|---|
| 53061SH1.pdf | Brunswick River at Brunswick Heads | 1:1000 | 396.7kb |
| 53061SH2.pdf | Brunswick River entrance | 1:1000 | 391.7kb |
| 53061.txt | xyz data | N/A | 144.8kb |
| 56268s01.pdf | Index plan | 1:15000 | 1710.4kb |
| 56268s02.pdf | Tidal planes | N/A | 339.5kb |
| 56268s03.pdf | Cross section locations - Marshalls Creek | 1:5000 | 632.7kb |
| 56268s04.pdf | Cross section locations - Brunswick River, Kings Creek, Pipeclay Creek & Midjimbil Creek | 1:5000 | 537.3kb |
| 56268s05.pdf | Cross section locations - Simpsons Creek | 1:5000 | 511.7kb |
| 56268s06.pdf | Marshalls Creek & Yelgun Creek | 1:2000 | 642.0kb |
| 56268s07.pdf | Marshalls Creek | 1:2000 | 576.1kb |
| 56268s08.pdf | Brunswick River & Marshalls Creek | 1:2000 | 538.4kb |
| 56268s09.pdf | Brunswick River entrance & Simpsons Creek | 1:2000 | 913.4kb |
| 56268s10.pdf | Brunswick River mid estuary | 1:2000 | 724.1kb |
| 56268s11.pdf | Brunswick River mid to upper estuary | 1:2000 | 573.1kb |
| 56268s12.pdf | Brunswick River upper estuary | 1:2000 | 541.3kb |
| 56268s13.pdf | Cross sections - Brunswick River & Kings Creek | 1:1000 H 1:200 V | 285.5kb |
| 56268s14.pdf | Cross sections - Kings Creek & Marshalls Creek | 1:1000 H 1:200 V | 265.5kb |
| 56268s15.pdf | Cross sections - Midjimbil Creek & Pipe Clay Creek | 1:1000 H 1:200 V | 267.0kb |
| 56268s16.pdf | Cross sections - Simpsons Creek | 1:1000 H 1:200 V | 324.0kb |
| 56268s17.pdf | Cross sections - Simpsons Creek | 1:1000 H 1:200 V | 272.9kb |
| 56268s18.pdf | Cross sections - Simpsons Creek | 1:1000 H 1:200 V | 244.3kb |
| 56268s19.pdf | Cross sections - Simpsons Creek | 1:1000 H 1:200 V | 231.8kb |
| 56268s20.pdf | Cross sections - Simpsons Creek | 1:1000 H 1:200 V | 196.2kb |
| 56268.txt | Brunswick River xyz data | N/A | 428.5kb |
Page last updated: 26 April 2012
