Test Dive: Glider Crash
Dive 2: Glider Crash
ROV Dive 02 – 4th March 2015
Chief Scientist: Malcolm McCulloch
Lead Marine Technicians: Leighton Rolley, Reuben Mills
Expected depth at launch: ~ 700 m
Expected min depth: ~ 200 m (to shelf edge – depends on topography)
Expected max depth: ~ 800 m
Launch position: Latitude -31⁰ 54.927′ Longitude 115⁰ 04.688′
Vehicle configuration tools: main manipulator/coral cutter arm, claw(s), scoop(s), standard camera & lighting configuration
Location: Glider location
Objectives: Search/collect corals from base of cliff to top, Note possible fossil corals (to collect) within scree at base of cliff, search for sea-glider (do not release) near top of cliff, follow transect from first cliff to nearby cliffs then top of escarpment to search/collect corals, note transect & hence collection sites from deepest to shallowest, release sea-glider at end of dive
Dive 3: Dog-Leg Canyon
Chief Scientist: Malcolm McCulloch
Lead Marine Technicians: Leighton Rolley, Reuben Mills
Expected depth at launch: ~ 1900 m
Expected min depth: ~ 1000 m (to cliff edge – depends on topography)
Expected max depth: ~ 1900 m
Launch position: Latitude -32⁰ 05.710′ Longitude 114⁰ 51.820′
Vehicle configuration tools: main manipulator/coral cutter arm, scoop (new/modified), scoop with mesh, prong (rake), standard camera & lighting configuration
Location: right-angle valley site (~2000 m prescribed depth)
Objectives: Search/collect corals from base of cliff to top, note possible fossil corals (to collect) within scree at base of cliff, note transect & hence collection sites from deepest to shallowest
Dive 4: Derwent Wreck
Chief Scientist: Malcolm McCulloch
Lead Marine Technicians: Leighton Rolley, Reuben Mills
Expected depth at launch: ~ 900 m
Expected min depth: ~ 600 m (to cliff edge – depends on topography)
Expected max depth: ~ 1200 m
Launch position: Latitude -31⁰ 58.500′ Longitude 115⁰ 05.250′
Vehicle configuration tools: main manipulator/coral cutter arm, scoop (new/modified), scoop with mesh, prong (rake), standard camera & lighting configuration
Location: Madrepora site (~900 m prescribed depth)
Objectives: Search/collect corals from base of cliff to top, note possible fossil corals (to collect) within scree at base of cliff, note transect & hence collection sites from deepest to shallowest
Dive 5: Amphitheatre Waterfall
Chief Scientist: Malcolm McCulloch
Lead Marine Technicians: Reuben Mills, Leighton Rolley
Expected depth at launch: ~ 1900 m
Expected min depth: ~ 1200 m (on top of cliff edge)
Expected max depth: ~ 2000 m
Launch position: Latitude: -31⁰ 46.500′ Longitude: 114⁰ 42.200′
Vehicle configuration tools: main manipulator/coral cutter arm, scoop with mesh, prong (rake), standard camera & lighting configuration
Location: ‘Coral Amphitheatre’ site at foot of Canyon
Objectives: Search/collect corals from base of cliff to top, Note possible fossil corals (to collect) within scree at base of cliff, Note transect & hence collection sites from deepest to shallowest
Dive 6: Dog Leg Canyon
Chief Scientist: Malcolm McCulloch
Lead Marine Technicians: Leighton Rolley, Reuben Mills
Expected depth at launch: ~ 1900 m
Expected min depth: ~ 1000 m (on top of cliff edge – depends on topography)
Expected max depth: ~ 1900 m
Launch position: Latitude -32⁰ 05.710′ Longitude 114⁰ 51.820′
Vehicle configuration tools: main manipulator/coral cutter arm, new large scoop and backup scoop, prong (rake), standard camera & lighting configuration
Location: right-angle valley site -called ‘dog-leg canyon’ (~2000 m prescribed depth)
Objectives: Search/collect corals from base of cliff to top, Note possible fossil corals (to collect) within scree at base of cliff, note transect & hence collection sites from deepest to shallowest, high resolution photography of coral/sponge ecosystems.
Dive 7: Glass Sponge Ridge
Chief Scientist: Malcolm McCulloch
Lead Marine Technicians: Leighton Rolley, Reuben Mills
Expected depth at launch: ~ 840 m
Expected min depth: ~ 800 m
Expected max depth: ~ 850 m
Launch position: Latitude -32⁰ 09.982 Longitude 114⁰ 52.140
Vehicle configuration tools: main manipulator/coral cutter arm, new large scoop and backup scoop, prong (rake), standard camera & lighting configuration
Location: site at foot of southern-most entrance to the Canyon (~1200 m prescribed depth to top of shelf (~960 m).
Objectives: recover acoustic beacon.
Dive 8: Glass Sponge Ridge
Chief Scientist: Malcolm McCulloch
Lead Marine Technicians: Leighton Rolley, Reuben Mills
Expected depth at launch: ~ 1200 m
Expected min depth: ~ 900 m
Expected max depth: ~ 1300 m
Launch position: Latitude -32⁰ 09.980 Longitude 114⁰ 50.580
Vehicle configuration tools: main manipulator/coral cutter arm, new large scoop, standard camera & lighting configuration
Location: site at foot of southern-most entrance to the Canyon (~1200 m prescribed depth to top of shelf (~960 m). This area is of interest as it is the southernmost arm of the Canyon and facing south – hence more current and hopefully less sediment and more substrate for coral growth.
Objectives: search/collect corals from base of cliff to top, note possible fossil corals (to collect) within scree at base of cliff, note transect & hence collection sites from deepest to shallowest, high resolution photography of coral/sponge ecosystems.
Dive 9: Glider Crash
Chief Scientist: Malcolm McCulloch
Lead Marine Technicians: Leighton Rolley, Reuben Mills
Expected depth at launch: ~ 700 m
Expected min depth: ~ 500 m (on top of slope)
Expected max depth: ~ 800 m
Launch position: Latitude -31⁰ 54.727 Longitude 115⁰ 04.805
Vehicle configuration tools: main manipulator/coral cutter arm, new large scoop, standard camera & lighting configuration
Location: Glider site at the top of the Canyon near the edge of continental shelf with substrate for coral growth.
Objectives: search/collect corals from base of cliff to top, search/recover trapped AUV glider, note possible fossil corals (to collect) along slope, high resolution photography of coral/sponge ecosystems.
Dive 10: Two Rocks
Chief Scientist: Malcolm McCulloch
Lead Marine Technicians: Leighton Rolley, Reuben Mills
Expected depth at launch: ~ 700 m
Expected min depth: ~ 500 m (on top of slope)
Expected max depth: ~ 800 m
Launch position: Latitude -31⁰ 42.045 Longitude 114⁰ 51.241
Vehicle configuration tools: main manipulator/coral cutter arm, new large scoop, standard camera & lighting configuration
Location: Two Rocks site at 680 m
Objectives: search/collect corals from base of cliff to top, note possible fossil corals (to collect) within scree at base of cliff, note transect & hence collection sites from deepest to shallowest, high resolution photography of coral/sponge ecosystems.
Dive 11: Two Rocks
Chief Scientist: Malcolm McCulloch
Lead Marine Technicians: Leighton Rolley, Reuben Mills
Expected depth at launch: ~ 700 m
Expected min depth: ~ 600 m (on top of slope)
Expected max depth: ~ 850 m
Launch position: Latitude -31⁰ 46.500 Longitude 114⁰ 42.200
Vehicle configuration tools: main manipulator/coral cutter arm, new large scoop, standard camera & lighting configuration
Location: Two Rocks hard-ground (~680 m prescribed depth to top of shelf (~600 m). This area is of interest as it is the shallowest reported occurrence of corals in the Perth Canyon region, on the edge of continental shelf with substrate for coral growth.
Objectives: search/collect corals from base of cliff to top, note possible fossil corals (to collect) within scree at base of cliff, note transect & hence collection sites from deepest to shallowest, high resolution photography of coral/sponge ecosystems.