ENVC Hearing 6Oct14 TGKL lay attach 8 state of gulf [pdf, 7.9 MB]
...gentle slope of around 1:1500 leads from the central Gulf to sand and mudflats at the southern end of the Firth of Thames. Seabed gradients are steeper north of Tawharanui Peninsula and on the eastern side of Coromandel Peninsula. They also increase offshore, with slopes of 1:400 towards the shelf break (Manighetti and Carter 1999). 4. As defined using National Institute of Water & Atmospheric Research Ltd’s (NIWA) river environment classification. State of the Environment Report 2...