INDIAN SCENARIO IN NAVTEX
The whole world is Divided into 21 Metareas or Navareas . These regions are part of Global Maritime Distress safety syestem (GMDSS). India is the Navarea VIII and India is responsible as a coordinator for Navarea VIII.
NATIONAL NAVTEX SYESTEM IN INDIA
The New System Includes 14 dual-channel transmitters be located at seven transmitter / Reciever stations, seven monitoring stations. Database servers is Interlinked through an IP network, the system provides coverage of upto 250 nautical miles from Indian coastline and will transmit maritime navigational and meteorological warnings and forecasts as well as urgent marine safety information (MSI) to the ships at sea in Indian waters .
NAVTEX STATIONS IN INDIA
NAVTEX stations are identified mainly on account of uniform spread and availability of land. It may be mentioned that the range of NAVTEX will depend on the efficiency of the antenna. The information from these stations will be collected at NAVTEX coordinating center which is proposed to be co-located with National data centre (NDC) of national AIS(automatic identification system) network.
The seven NAVTEX stations in India are,
1. Veraval (Gujarat)
2. Vengrula Point (Maharashtra)
3. Muttan pont (Tamil Nadu)
4. Porto Novo ( Tamil Nadu )
5. Vakalpudi (Andra pradesh)
6. Balasore (orissa)
7. Keating point (Andaman and Nicobar)
Organisation of Navarea VIII
1. Naval chart Depot ( Mumbai)
2.Indian Meteorological Department.
3.DG-Shipping Mumbai
4.NHO- Dehradun
5.National Data Centre
Transmission of Warnings
It is issued by Naval chart Depot in Mumbai.The Routine transmission of warnings are from LES ARVI Daily at
1000 UTC and 2200 UTC. Urgent messages other than routine messages are transmitted anytime. NAVTEX transmission occurs through shore stations monitored by National Hydrography office.
The warning bulletins and weather forecasts are prepared by ,
. ACWC ( Area cyclone warning centre) , Mumbai for Arabian sea.
. ACWC kolkata for Bay of Bengal
. Indian Осеan and Southern Hemispheric
Analysis centre (INOSHAC,Pune ) for Indian Ocean part North of equator.
INOSHAC combines their bulletins with ACWC Mumbai and ACWC kolkata and sends it to Regional specialised Meteorological centre (RSMC) , New delhi, for final editing . After editing it is routed
through Regional Telecommunication
hub (RTH), New Delhi for its onward transmission to LES, ARVI. This scheme
was adopted in 1996 June by Indian Meteorological Department. At
the start only one broadcast was there
at 0900 UTC, then it was increased to two in 1998 october. During cyclone situations additional bulletins are broadcasted.
As per Radio Circular No I of 2015 NAVTEX was modified by installing Seven new transmitters on the sea coast of india
for broadcasting weather and navigational
messages on 518 khz and 490 kHz .
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