1. NATIONAL MARITIME SAFTEY AUTHORITY
MARITIME WATERWAYS & SAFTEY PROJECT
HYDROGRAPIC SERVICES DEPARTMENT
LEVEL 4 DEFENS HAUS, CNR OF CUTHBERTSON
& HUNTER STREET P.O BOX 668
TITLE OF PAPER: NMSA RADAR TIDA GAUGES
(DATAMAR 2000C/3000C) & SIG-
NIFICANCE TO HYDROGRAPHY IN
PNG
PRESENTER: DERICK HAYNE PETRUS
TYPE OF PRESENTATION MS POWERPOINT PRESENTATION
AND LOAN: 2978

2. ABSTRACT.
NMSA PNG hydrographic department currently has four existing radar tide gauges model
DATAMAR 2000C/3000C operating at a frequency of 26GHz in Port Moresby, Lae Kimbe &
Alotau that were installed and commissioned in 2006. The whole autonomous integrated sys-
tem comprises of state of the art mechanical coupled optical and electronic devices within a
time correlated WGS-84 GPS referenced system fine-tuned to ensure a robust, efficient and
effective dissemination of real time meteorological and oceanic information to the maritime
community and various private and government stakeholders for safe and improved shipping.
There are four radar tide gauge systems to be installed this year (2016) as part of improving
the capacity of the existing radar tide gauges functions in and around PNG waters locations
are; Madang, Manus, Buka, West Sepik, this tide gauges will be assembled and placed at each
PNG port as the housing entity.
OBJECTIVE.
The primary function of the radar tide gauge is to accurately measure, record and dissemi-
nate real time referenced oceanic, atmospheric and meteorological data for use by the mari-
time transport sector and for exploitation by other various private and government organiza-
tions.
This document is a report on the current objectives of the National Maritime Safety
Authorities hydrographic services department that serves to inform, update in essence survey-
ors to understand the impact and significance of this important state asset measuring, moni-
toring and using tide data for near shore and port hydrographic surveys.
ASPECTS
 Radar tide gauge system as a whole.
 The importance of this system to Hydrography & the Maritime Industry as a whole.
 Capability of the radar tide gauges; DATAMAR 2000C/3000C
 The need for hydrographic surveys to reference their surveys to chart datum lowest astro-
nomical (LAT) and not mean sea level (MSL), especially in near coastal shores for purposes of
nautical charting , shipping approach, berthing or where full seafloor bottom coverage for
coastal engineering developments such as wharves, jetties is required
 The future of radar tide gauges compared to other sensor systems.