Land Information New Zealand New Zealand Hydrographic Risk
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Hydrographic Authority LAND INFORMATION NEW ZEALAND NEW ZEALAND HYDROGRAPHIC RISK ASSESSMENT - NORTH ISLAND Report Number: 15NZ326-B Issue: 01 Date: 31 July 2016 MARICO MARINE NEW ZEALAND LTD Report No: 15NZ326‐B Unrestricted Issue No: 01 NZ Hydrographic Risk Assessment ‐ North Island LAND INFORMATION NEW ZEALAND NEW ZEALAND HYDROGRAPHIC RISK ASSESSMENT - NORTH ISLAND Prepared for: LAND INFORMATION NEW ZEALAND Author(s): John Riding; Gianis Priovolos; Jennifer Roberts Checked By: John Riding Date Release Prepared Authorised Notes 14/06/2016 Draft A JFR, GP, JMR John Riding Draft Release 18/07/2016 Draft B JFR, GP, JMR John Riding Comments Update 31/07/2016 Issue 1 JFR, GER John Riding Issue 1 to Client Note : The views expressed in this publication are those of the authors and do not necessarily reflect those of the New Zealand Government. Marico Marine NZ Ltd Level 11 156 Willis Street Wellington 6011 New Zealand 31 JULY 2016 15NZ326‐B NZHRA North Island Issue 01 31_07_16 Page ii Report No: 15NZ326‐B Unrestricted Issue No: 01 NZ Hydrographic Risk Assessment ‐ North Island CONTENTS Abbreviations 1 INTRODUCTION ..................................................................................................... 1 1.1 Background .................................................................................................. 1 1.2 Project Scope ............................................................................................... 3 1.3 Official Nautical Charts ................................................................................ 3 1.4 Data Used in the Project .............................................................................. 4 1.4.1 Automatic Identification System Data (AIS) ....................................................... 4 1.4.2 Additional Data Collected .................................................................................. 5 1.5 New Zealand Charting Definitions ................................................................ 5 1.5.1 Chart Adequacy .................................................................................................. 6 1.5.2 Chart Scale .......................................................................................................... 6 1.5.3 Chart Extents ...................................................................................................... 9 1.5.4 Chart Quality ...................................................................................................... 9 1.5.5 NZ Chart Portfolio ............................................................................................ 14 2 HYDROGRAPHIC RISK RESULTS ‐ NORTHLAND REGION ....................................... 15 2.1 Introduction – Northland Region ............................................................... 15 2.1.1 Whangarei Harbour .......................................................................................... 15 2.1.2 Bay of Islands.................................................................................................... 16 2.1.3 Whangaroa Harbour ........................................................................................ 17 2.1.4 Mangawhai Harbour ........................................................................................ 17 2.1.5 Mangonui / Rangaunu / Houhora Harbours .................................................... 17 2.1.6 Parengarenga Harbour ..................................................................................... 18 2.1.7 Hokianga Harbour ............................................................................................ 18 2.1.8 Kaipara Harbour ............................................................................................... 18 2.1.9 Areas of Risk Assessment Significance – Reserves, Ecological, Cultural .......... 19 2.1.10 Economic Summary .......................................................................................... 19 2.2 Traffic Analysis – Northland Region ........................................................... 20 2.2.1 All Traffic – Northland ...................................................................................... 20 2.2.2 Cruise Vessels ‐ Northland ............................................................................... 24 2.2.3 Domestic Passenger Traffic ‐ Northland .......................................................... 25 2.2.4 Tanker Traffic – Northland ............................................................................... 27 2.2.5 Tanker Traffic ‐ Whangarei ............................................................................... 28 2.2.6 Fishing Vessels ‐ Northland .............................................................................. 28 2.3 Hydrographic Risk – Northland Region ....................................................... 29 15NZ326‐B NZHRA North Island Issue 01 31_07_16 Page iii Report No: 15NZ326‐B Unrestricted Issue No: 01 NZ Hydrographic Risk Assessment ‐ North Island 2.3.1 Hydrographic Risk ‐ Bay of Islands ................................................................... 30 2.3.2 Hydrographic Risk – Whangarei Harbour ......................................................... 31 2.4 Charting Benefit ‐ Northland Overview ...................................................... 32 2.4.1 Charting Benefit ‐ Bay of Islands ...................................................................... 32 2.4.2 Charting Benefit ‐ Whangarei Harbour & Approaches .................................... 33 3 HYDROGRAPHIC RISK RESULTS ‐ AUCKLAND REGION .......................................... 35 3.1 Introduction – Auckland Region ................................................................. 35 3.1.1 Waitemata Harbour ......................................................................................... 35 3.1.2 Manukau Harbour ............................................................................................ 37 3.1.3 Kawau Bay ........................................................................................................ 37 3.1.4 Great Barrier Island .......................................................................................... 38 3.1.5 Mahurangi, Whangateau and Leigh Harbours ................................................. 38 3.1.6 Areas of Risk Significance ‐ Reserves, Ecological, Cultural ............................... 39 3.1.7 Economic Summary – Auckland Region ........................................................... 39 3.2 Traffic Analysis – Auckland Region ............................................................. 40 3.2.1 All Traffic ‐ Auckland Region ............................................................................ 40 3.2.2 All Traffic Density – Auckland Region ............................................................... 42 3.2.3 Cargo Vessels – Auckland Region ..................................................................... 42 3.2.4 Cruise Vessels – Auckland Region .................................................................... 43 3.2.5 Domestic Passenger Services ‐ Auckland Harbour ........................................... 46 3.2.6 Tanker Traffic – Auckland ................................................................................. 46 3.2.7 Commercial Fishing Vessels ............................................................................. 47 3.2.8 Recreational Fishing Vessels ............................................................................ 48 3.2.9 Recreational Craft in General ........................................................................... 48 3.3 Hydrographic Risk ‐ Auckland..................................................................... 49 3.3.1 Overview Result – Auckland Region ................................................................. 49 3.3.2 Hydrographic Risk ‐ Kawau Harbour ................................................................ 50 3.3.3 Hydrographic Risk ‐ Auckland ‐ Inner Hauraki Gulf .......................................... 51 3.3.4 Hydrographic Risk ‐ Auckland – West Harbour ................................................ 52 3.3.5 Hydrographic Risk ‐ Auckland – Tamaki Strait ................................................. 52 3.4 Charting Benefit – Auckland Region ........................................................... 53 3.4.1 Charting Benefit ‐ Kawau Bay ........................................................................... 54 3.4.2 Charting Benefit ‐ Auckland – Inner Hauraki Gulf ............................................ 54 3.4.3 Charting Benefit ‐ Auckland – West Harbour ................................................... 55 3.4.4 Charting Benefit ‐ Auckland – Tamaki Strait .................................................... 55 4 HYDROGRAPHIC RISK RESULTS ‐ WAIKATO REGION ............................................ 56 15NZ326‐B NZHRA North Island Issue 01 31_07_16 Page iv Report No: 15NZ326‐B Unrestricted Issue No: 01 NZ Hydrographic Risk Assessment ‐ North Island 4.1 Introduction ............................................................................................... 56 4.1.1 West Waikato Region ‐ Port Taharoa ............................................................... 57 4.1.2 West Waikato Region ‐ Raglan Harbour........................................................... 57 4.1.3 West Waikato Region ‐ Kawhia Harbour .......................................................... 57 4.1.4 East Waikato Region ‐ Whitianga Harbour ...................................................... 58 4.1.5 East Waikato Region ‐