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ERIN Dual-processed Landsat TM tiles in Western Australia - Ravensthorpe tile
No full textStatement: (1) First the raw Landsat images were geometrically rectified to GDA94 (Datum) and MGA (Projection) and were resampled using cubic convolution,
(2) No attempt was made to radiometrically calibrate these images since images dates image dates were quite apart. Also, the calibration would not have worked over water due to different tide conditions,
(3) Three bands composite Images were produced using dual enhancement technique where land was enhanced using bands 741 (RGB) and water was enhanced using bands 321 (RGB),
(4) Images were cut using 250 000 map extents and were saved in GeoTIFF format.A Landsat TM image was cut using a NATMAP Geoscience Australia 1:250 000 scale map named Ravensthorpe (Map number SI51-5) and was saved in GeoTIFF format.<br/><br/>The image was geometrically rectified to GDA94 (Datum) and MGA51 (Projection) and a dual enhancement technique was conducted to Landsat TM satellite data where land was enhanced using bands 741 (RGB) and water was enhanced using bands 321 (RGB). This is one of a series of tiles processed by ERIN from Coastal Atlas project in the 1990's
WAMSI Kimberley hyper-spectral data - 19th September 2008
No full textStatement: The data from the AISA+ hyper-spectral scanner was first processed using CaliGeo (using default parameters, except that we used "external NAV-files"). CaliGeo, starting from version 4, runs as a part in the ENVI+IDL software environment. It runs as a separate software package under the ENVI software package, sold by Research Systems Inc.
In short, CaliGeo is used to do all the radiometric corrections and to rectify and georeference AISA
data.On the 19th of September 2008 a hyper-spectral scanner (AISA+ Airborne Hyperspectral System from Specim - Spectral Imaging Ltd.) collected data from part of the Kimberley (Montgomery Reef). <br/><br/>Flight lines are shown in thumbnail with further information available from contacts below
Biogeochemical constraints on the growth and nutrition of the seagrass Halophila ovalis in the Swan River Estuary - Summary
No full textMaintenance and Update Frequency: notPlannedStatement: Research was undertaken both in the laboratory(with collected samples) and in the field. H. ovalis was chosen to investigate the role of biogeochemistry in seagrass sediments both on growth and nutrient dynamics.
Detailed methodology can be seen via the individual dataset lineage.<b>Credit</b><br/>Strategic Research Fund for the Marine Environment (SRFME)Below-ground interactions between biotic and abiotic factors that influence seagrass nutrition and growth were studied, with a focus on Halophila ovalis from the Swan River Estuary, Western Australia between 2003 and 2006
Marine Turtles of the Gorgon Gas Development EIS/ERMP - Technical appendix C7
No full textMaintenance and Update Frequency: unknownStatement: Original record compiled for the Gorgon Gas Development EIS/ERMP.<b>Credit</b><br/>Jeremy Fitzpatrick: RPS Environment<b>Credit</b><br/>Pendoley Environmental Pty LtdBarrow Island is a regionally important nesting area for green turtles and flatback turtles. Hawksbill turtles nest at low densities around the island and loggerheads have been only occasionally recorded from the island.<br/><br/>Green turtles nest predominantly on the sandy west coast beaches on Barrow Island in spring and summer. Hatchlings emerge from nests through summer and early autumn. While most green turtles migrate away from the area after breeding, some appear to be resident at Barrow Island, remaining near the island during the winter. The area of the proposed feed gas shore crossing at North White's Beach is not a locally important green turtle nesting site. Flacourt Bay, where the alternative pipeline shore crossing is proposed, is an important green turtle nesting habitat.<br/><br/>Nesting flatback turtles favour mid-east coast beaches on Barrow Island. The beaches either side of the proposed Development area at Town Point are important components of this regionally significant rookery. In the summers of 2003-2004 and 2004-2005, flatback turtle nesting densities were highest on the central east coast adjacent to Town Point (Figure 8-2). The proposed shore crossing for the domestic gas pipeline is comprised of mangroves and mudflats and is unsuitable for turtle nesting. A flatback turtle rookery has recently been identified at Back Beach, Onslow
WAMSI Node 6.2 - The Impact of tides and internal waves on offshore engineering - Summary
No full textStatement: See attached report and journal links for detailed methodology<b>Credit</b><br/>Cynthia Bluteau<b>Credit</b><br/>Nicole Jones<b>Credit</b><br/>Matt Rayson<b>Credit</b><br/>School of Environmental Systems Engineering and the Oceans InstituteFrom 2007 to 2011, a field measurement program, a numerical circulation model development program, and a laboratory program will provide a comprehensive understanding and predictive capability of the tidal motions and tidally driven internal wave climatology on the North West Shelf of Western Australia. This will encompass the generation, propagation and dissipation of internal waves and their effects on the marine environment. This precise understanding of the local ocean environment will link with issues of loading on structures, seabed stability and bottom erosion, and hence engineering design criteria for the design and operation of pipelines and offshore structures
Ichthys Gas Field Development - Marine Turtle Studies.
No full textMaintenance and Update Frequency: unknownStatement: Original record compiled for the Western Australian Marine Science Institution (WAMSI), Project 3.8, 2008.<b>Credit</b><br/>Greg Oliver: INPEX Browse LtdThe aims of the marine turtle baseline studies are to describe the behaviour and distribution of marine turtles and their favoured nesting beaches around the Maret Islands and in the broader West Kimberley region.<br/>Objectives<br/>The objectives of the turtle population studies are to:<br/>- Determine the genetic affinities of the breeding population of green and flatback turtles on the Maret Islands;<br/>- Identify critical marine turtle habitats (aggregation and nesting areas) in the vicinity of the proposed development;<br/>- Determine the relative importance of habitats on the Maret Islands in comparison with surrounding areas of the West Kimberley region;<br/>- Quantify the usage of the Maret Islands by nesting marine turtles; and <br/>- Assess the potential lighting impacts on turtles from the proposed development on the Maret Islands. Studies have been conducted over 2 nesting seasons (2006/7 and 2007/8). Satellite tags were affixed to both green and flatback turtles
WAMSI Kimberley hyper-spectral data - 18th September 2008
No full textStatement: The data from the AISA+ hyper-spectral scanner was first processed using CaliGeo (using default parameters, except that we used "external NAV-files"). CaliGeo, starting from version 4, runs as a part in the ENVI+IDL software environment. It runs as a separate software package under the ENVI
software package, sold by Research Systems Inc.
In short, CaliGeo is used to do all the radiometric corrections and to rectify and georeference AISA data.On the 18th of September 2008 a hyper-spectral scanner (AISA+ Airborne Hyperspectral System from Specim - Spectral Imaging Ltd.) collected data from part of the Kimberley (Montgomery Reef). <br/><br/>The thumbnail shows flight lines. Further information can be obtained through contacts listed below
Coastalwatch: Coastal Condition Monitoring System - Mona Vale
No full textMaintenance and Update Frequency: continualStatement: Camera Site Hardware - The cameras and associated hardware permit live streaming video from multiple locations. The camera systems can be located in surf life saving clubs, lifeguard towers, marine rescue or coast guard premises, hotels or other privately-owned buildings, and can be established in remote locations if required. The cameras are securely mounted and housed to guard against inclement weather and vandalism.
Each camera location consists of a phone line connection with an ADSL modem or Motorola wireless link, UPS backup, hub network, robotic Sony PTZ controllable camera and remote reboot/restart equipment. The Dell Optiplex computer system, Sony IP camera and modem automatically restart and reconnect to the internet if any mains power is interrupted.Statement: In order to create a secure and efficient data environment, Coastalwatch has implemented a state of the art Virtual Private Network (VPN) and have centralised all live video streams and data information in one of Australia's largest data centres, Equinix. Sony cameras deployed by Coastalwatch at the beach and harbour locations are capable of producing TV quality broadcasts, with the only limiting factor being the speed of the telecommunications infrastructure available at telephone exchanges.
Due to the explosive growth of telecommunication infrastructure around the world, Coastalwatch continues to upgrade the quality of vision streaming over the internet, mobile phone and digital TV in order to maintain quality streaming vision for the increasing number of clients.<b>Credit</b><br/>Bureau of Meteorology (BOM)<b>Credit</b><br/>National Oceanographic and Atmospheric Administration (NOAA)<b>Credit</b><br/>Community and Environmental Organisations<b>Purpose</b><br/>There is a need for timely and accurate measurement of shoreline position and beach information at locations around the World. There may also be a need to provide predictive and real-time advice on beach conditions and safety, along with a profile of conditions if an incident were to occur.Since its launch in 1998, Coastalwatch has become Australia's most popular water sports website, and is consistently ranked in the top eight sporting websites. The site displays live vision from over 90 coastal locations around Australia and overseas. It also provides daily surf reports, swell forecasting, weather information and news; as well as video, photographic and editorial content. <br/><br/>Coastalwatch has also developed a Coastal Conditions Monitoring System, which utilises the camera network to make a significant contribution to safer coastal use and more efficient and cost effective coastal management. To this end, Coastalwatch has partnered with Surf Life Saving Australia and Surfing Australia; and supports Volunteer Rescue organisations, community groups, and charities such as SurfAid International and the Surfrider Foundation Australia. <br/><br/>Coastalwatch is committed to bringing the coast to all Australians and overseas visitors, and becoming the premier reference site for all coastal user groups. With this in mind, Coastalwatch is dedicated to assisting with sound coastal zone research and management through the use of all its resources
Herbert River near the Jetty Secchi disk Sampling 10 July 2002
No full textMaintenance and Update Frequency: notPlannedStatement: The Secchi disc is a standardised water visibility estimate taken by lowering a white disk of about 30 cm diameter into the Sea and measuring the depth at which it becomes invisible.Statement: Although this method is not very accurate, it gives a reliable and quick estimate of the transparency of the water.<b>Credit</b><br/>University of Sydney<b>Purpose</b><br/>During the 10-14th July 2002 field trip to Lucinda Jetty a number of sediment-related measurements were undertaken to study flood-induced suspended sediment transport in the Herbert River mouth and adjacent coastal waters. The data collected included Secchi disk samples.The objective of the research reported in this thesis was to develop a technique to monitor the dynamics of sediments and nutrients entering the coastal ocean with river plumes associated with high intensity low frequency events (e.g. floods), using ocean colour remote sensing. The data collected included Secchi disk measurements
Secchi Disc data measured during a high rainfall event in Port Jackson, 23 August 2007
No full textStatement: A Secchi Disc was used to take the measurements of water clarity. The Secchi disc is a standardised water visibility estimate taken by lowering a white disc of about 30 cm diameter into the water and measuring the depth at which it becomes invisible.
Data parameter: secchi disc depth (m).Statement: A Secchi Disk measures water clarity. Water clarity may be affected by three different factors -- algae, sediment and / or water color.<b>Credit</b><br/>You, John<b>Purpose</b><br/>To analyse water clarity data collected during a high precipitation event over the Sydney Harbour catchment in order to determine how the Port Jackson estuary behaves under these conditions.The Sydney Harbour catchment area includes a number of different river systems which drain into the Port Jackson estuary. During high rainfall events the catchment areas behave differently to deliver contaminants into the Port Jackson estuary. Under conditions of high rainfall contaminants are delivered to areas very quickly as freshwater slides over the top of the denser more saline waters of the estuary. Secchi Disc samples were taken along the Port Jackson estuary over four days to determine the behaviour of the freshwater plume as it travels in a layer of freshwater to be flushed or flocculate out at some point in the estuary