METEOROLOGICAL TELECOMMUNICATION

( Meteorological Telecommunication | Home )

         

1.    BACKGROUND

In 1873, the first International Meteorological Congress met in Vienna, Austria to establish the International Meteorological Organization (WMO). The key objectives were to establish network of meteorological observing stations. On 27th April, 1949, IMD became a member of WMO (World Meteorological Organization), the specialized agency of the United Nations for Meteorology (Weather and Climate) operational hydrology and related geophysical sciences established in 1950.

The Global Telecommunication System (GTS), the main part of WMO, National Meteorological Telecommunication Centre (NMTC), in Mausam Bhavan acts at RTH (Regional Telecommunication Hub) of the GTS of WMO.

2.    MANDATE

Modern Meteorology depends on near real time exchange of weather information across the globe. Tele communications was renamed as Information System and Services Division (ISSD) of India Meteorological Department in January, 2009 and provides support functions needed for meteorological data and processed weather products to the users, both national and international, round-the-clock on near real-time basis.

3.      ORGANISATION

The Directorate of Tele-communication was set up in IMD at New Delhi in 1969 to cater the needs of National Meteorological Service and strengthen the Meteorological Telecommunication in India.  Since its inception, IMD maintains an extensive telecommunication network for speedy collection of meteorological information, both basic data and processed products, over the globe. The main telecommunication hub of the IMD’s telecommunication network is located at Head Quarter, New Delhi and it is known internationally as Regional Telecommunication Hub (RTH) under the aegis of World Meteorological organization. It was at the best a manual or semi-automatic operational frame-work requiring a large number of personnel to carry out the day-to-day operational activities with repetition of routine work in many centers.  Since then communication system, techniques and protocols have undergone significant change by adopting world-wide application of TCP/IP based services and Internet including security aspects, with a view to ensure efficient and safe operation  of information systems.  Manual decoding, plotting and analysis of limited volume of synoptic/upper air observations have given place to automatic decoding and analysis and forecast by using High Performance Computing System running on  highly sophisticated and complex Numerical Weather Prediction Models. The output of these models are objectively visualized by the forecasters in highly sophisticated graphic  workstations to overlay with satellite and radar products to value-add and infer about the future state of atmosphere in different space and time resolution. Thus the focus was shifted   from telecommunications to Information Systems and Services and consequently, the Division was renamed as the Information System and Services Division in January, 2009.

Organizational chart of Information System and Services Division (ISSD) is given at ANNEXURE- I.

 

3.1    WIS Portal –GISC New Dehli

The WMO Information System (WIS) is a project designed for regional and global connectivity to collect and distribute the information meant for routine global dissemination, while serving as collection and distribution centres in their areas of responsibilities; providing entry points, through unified portals and comprehensive metadata catalogues, for any request for data held within the WIS.

DAR and GTS

WIS consists of two parallel parts: GTS and DAR (Discovery, Access and Retrieval). WMO continues its efforts to  enhance and improve of GTS, while new DAR functionality is integrated into all WMO and related international programmes.

GTS has long served as the backbone of World Weather Watch Programme (WWWP) a push-based distribution system for operationally critical data. In response to the growth of the computer industry and the rise of the Internet,  which have enabled the use of meteorological information online in a variety of  non-operational and interdisciplinary activities, WIS was conceived as a project to fill existing gaps and support the  inter-community exchange of data and information.

At the center of DAR is a catalogue of the entire WIS. GISCs collect all metadata from WIS Centres in their areas of responsibility, and exchange metadata sets with one another.

Organization of WIS

WIS consists of three types of centers:

GISCs (Global Information System Centres)

GISCs (Global Information System Centres) are responsible for:

·     Management of AMDCN (the Area Meteorological Data Communication Network)

·     Services relating to data intended for global distribution (known as a GISC Cache)

·     Cataloguing of the entire WIS.

 

nc.jpg

 

DCPCs (Data Collection or Production Centres)

DCPCs (Data Collection or Production Centres) are designated for each WMO programme activity. They typically engage in:

·     Production of specialized information .

·     Collection and archiving of information in a domain.

·     Telecommunication hub activities.

NCs (National Centres)

NCs (National Centres) can be established in each WMO member state. They are responsible for collecting national observation data and submitting them to the WIS network. NCs are also responsible for domestic data distribution networks and in-country authorization of WIS users.

Indian Meteorlogical’s WIS Services

The India Meteorological Department (IMD) fulfills the required international roles, each designated as Global Information System Centre (GISC) or Data Collection or Production Centre (DCPC) duties within the framework of WMO Information Systems (WIS).

GISC New delhi

The Global Information System Centre (GISC) provides an entry point to WIS through the following functions, and acts  as a regional coordinator for the real-time network.

·     GISC Cache: services relating to global data (i.e., information intended for global distribution, traditionally exchanged via GTS)

·     DAR Catalogue: consisting of metadata to be collected from the entire WIS

This GISC is also responsible for coordinating the area meteorological telecommunication network.

RTH New Delhi (DPC)

New Delhi has long served as a Regional Telecommunication Hub for the Global Telecommunication System (GTS). Its roles include:

·     Collection and dissemination of meteorological data and products within its area of responsibility

·     Exchange of such data/products with other RTHs

RSMC (DCPC)

New Delhi has one designated Regional Specialized Meteorological Centre (RSMC)for Tropical Cyclone  of the World Weather Watch (WWW) Programme.

Satellite Center (DCPC)

New Delhi operates geostationary meteorological satellites and provides imagery to NMHSs.

·     Operation of  INSAT 3A ,KALPANA and INSAT 3D

Numerical Weather Prediction Center (DCPC)

The Numerical Weather Prediction (NWP) center run the GFS, WRF Models and provide the products to NMHSs to deliver better services.

National Climate Center at Pune ) (DCPC)

The National Climate Centre (NDC) helps NMHSs to deliver better climate services. Its two major activities involve providing basic climate data and products to users.

3.2   

The Meteorological Telecommunication in IMD consists of an integrated network of point-to-point & point to multipoint (MPLS VPN) links and meteorological centers within the country and the world for receiving data and relaying it selectively.  It is mainly organized on a two level basis, namely

i) The Meteorological Telecommunication Network (MTN) within the Global Telecommunication System (GTS) of World Weather Watch (WWW) program of World Meteorological Organization (WMO), and

ii) The National Meteorological Telecommunication Network (NMTN).

3.3 GTS Network

IMS Designs 04

  In regard of Meteorological Telecommunication Networks on the GTS, New Delhi Telecommunication center is a designated Regional Telecommunication Hub (RTH) located on the Main Telecommunication Network (MTN).  The MTN is the core network of GTS which connects three World Meteorological Centers (WMCs) and 14 other RTHs on the MTN. RTH New Delhi is also a National Meteorological Centre (NMC) for telecommunication purposes within the framework of GTS.

3.3.1

RTH New Delhi is directly connected with  WMC  Moscow, RTH Tokyo and RTH Cairo, RTH Beijing, RTH Toulouse, RTH Jeddah and WMC Melbourne located on the MTN; RTHs Bangkok and Tehran and NMCs Colombo, Dhaka, Karachi, Kathmandu, Male, Muscat  and Yangon  in the RMTNs. A configuration of the MTN and RMTN Networks connecting RTH New Delhi is given at ANNEXURE-II and corresponding status of international circuits connected with RTH New Delhi is at ANNEXURE-III.

3.4 National Meteorological Telecommunication Network

The National Meteorological Telecommunication Network

(NMTN) is designed to collect/receive observational data and to receive and distribute meteorological information on national level. Basic data from the observatories are collected at 19 collection centres (which are either Meteorological Centre at the State Capitals or Regional Meteorological Centre) by various communication means. The stations included in the list of Global Observing System (GOS), the observational data of which are transmitted on GTS, are mostly connected by point-to-point/point-to-multipoint (MPLS VPN) links. Status of National circuits connected with NMTC/RTH New Delhi is given at ANNEXURE-IV, the telecom facilities used in the NMTC in ANNEXURE-V.

3.5 Satellite based Data Communication in IMD

Satellite based data collection/ distribution systems are integrated in the Meteorological Tele-communication Network as an essential element at the global, regional and national level. Medium and High speed links connecting RTH New Delhi with Meteorological Tele-communication Centers at the major international airports in India are operating via satellite.

3.5.1

A network of 26 V-SATs have been installed at selected Seismological Observatories, Cyclone Detection Radar stations, Cyclone Warning Centres and Meteorological Centers for reception of observational data utilizing communication transponder of INSAT.

·     Digital Meteorological Data Dissemination (DMDD), the processed INSAT cloud imageries, GTS Data and analysed weather charts are transmitted through INSAT-3C   using S-band digital broadcast of the satellite every half hour. At present there are 37 DMDD ground receiving stations in India (IMD) and one each in Maldives, Nepal and Sri Lanka.

·     A receive only Satellite data Dissemination System (SADIS) is in operation at New Delhi to receive aeronautical meteorological information from International Civil Aviation Organization (ICAO), centres which are routed to four International Airport of India to meet aviation operational requirements and also information is exchanged over GTS.

3.5.2

India has been designated as an issuing authority under the GMDSS program for Meteorological Area VIII(N). This covers the area of the Indian Ocean enclosed by the lines from Indo-Pakistan frontier in 23°45’N 68°E 12°N 63°E, thence to Cape Gardafui; the east African coast south to equator, thence to 95°E to 6°N, thence to the Myanmar/Thailand frontier in 10° N 98° 30’ E.

India Meteorological Department is transmitting daily two GMDSS bulletins for    Met. Area VIII(N)  one at 0900 UTC and other at 1800 UTC. During Cyclone Season additional bulletins (4) are also being issued for GMDSS broadcast depending on the requirement.  GMDSS bulletins are transferred to VSNL Earth Station at Pune through email and put up on IMD Website at URL http://www.imd.gov.in. Pune Earth Station uplinks this information to INMARSAT satellite for broadcast to all ships in Met Area VIII(N).

3.6 Other Communication facilities

Various modes of communication such as dedicated High speed leased line circuits, VPN links,  telefax   and internet(45Mbps) facility are extensively being used for exchange of observational data within the country. Services of Maritime Telex Stations (NAVTEX) are used for sending  warnings/coastal weather bulletins  by Area Cyclone Warning Centre (ACWC), MUMBAI for the Arabian Sea , Area Cyclone Warning Centre (ACWC), Kolkata for the Bay of Bengal, Indian Ocean and Southern Hemispheric Analysis Centre (INOSHAC), Pune for the Indian Ocean north of the equator to ships in Metarea VIII (N) (north of equator).

4. Modernization of Meteorological Tele-communication

India Meteorological Department has its National Meteorological Telecommunication Centre (NMTC) with a switching computer system which is connected to WMO Centers on the GTS. The existing RTH Automatic Message Switching System “TRANSMET” is the state-of-the-art technology system. It consists of Separate Automatic Message Switching System (AMSS) for National and International data exchange. The system works in hot standby mode. Two database servers separately for National and International servers, two E-mail servers and two Web servers, both in hot standby mode, Cisco firewall for intrusion protection, latest SADIS-2G receiver to receive SADIS data, Cisco Routers and HP Switches, GPS Time Server for time synchronization are also integral part of the RTH system. The system has one virtual IP for both LIVE and STANDBY machines,  easy browser based Graphical Interface for circuit configuration, circuit monitoring tool, data monitoring, audio-visual  warning system for circuit failure and special message reception.

The new RTH system has enormous features. Some of the salient features are ability to retrieve message from E-mail and submit that message to GTS, send the whole message to predefined users through e-mail when a message with particular header is received, customized message through SMS to predefined recipients whenever a particular header is received which can be used for warning dissemination and message submission, transmission of warning messages to predefined FAX numbers, file switching capability (satellite, RADAR, model etc. data file to predefined users, media file i.e. audio-visual files to RMC, MC etc) through FTP, automatic conversion of  the received SYNOP and Upper Air messages to BUFR and their transmission on GTS, message submission through web browser which is quite useful for submission of messages to TRANSMET directly by Remote and Part Time observatories. The whole system has been designed to handle large number of medium and high speed channels.  The system is capable of handling several gigabytes of data/information every day.  The system has many advanced facilities like handling VSAT links and handling sea area bulletins under Global Maritime Distress and Safety System (GMDSS).  NMTC New Delhi is connected to Super computer of NCMRWF through NKN/ VPN link and  the HPCS (High Power Computing System) at Northern Hemispheric Analysis Centre (NHAC) New Delhi through Gigabit LAN for instantaneous transmission of global observational data and processed information received via GTS. TRANSMET is core system for data exchange with all the systems like CIPS, Synergie, PWS, Meteofactory as well as GTS. Automatic Message Switching Systems (AMSS) are also operational at the major International airports viz. Mumbai, Delhi, Calcutta, Chennai and Guwahati.  The circuits linking New Delhi (Palam), Mumbai, Kolkata, Chennai and Guwahati Airport computer systems with the NMTC New Delhi are working at high speed.

4.1. Central Information Processing System (CIPS)

CIPS is a powerful Meteorological Information and Processing System which allows the India Meteorological Department (IMD) to define and implement

cipshardware

its Data Operational policy. Central Information and Processing System (CIPS) will give a paradigm shift in IMD’s core activities from Observation Network Management towards integrated and connected Information Systems to provide effective services to the user community. CIPS will be able to handle, manage, store, process and archive selected data and products used operationally within IMD as per decided data policy.

It consists of 7 sub-systems comprising of data acquisition, data policy management, Data Provider, Task Policy Management, Tasks Centre, Backup Policy Management and Backup. CIPS Data centre provide flexibility to ingest any kind of Meteorological data like satellite, radar etc. SAN based storage facility gives scalability in terms of archival of data. CIPS Task Centre is a facility for in-house development of value added forecast products to augment IMD’s operational requirement. In addition task centre provides a common working environment for multidisciplinary research activities in meteorology.

CIPS is the core system taking care of a backup of all the major sub-systems of MFI in the IMD network for restoration in case of failure.

Salient features of this system are:

            1. Data Centre with data integration, quality control and data browser facility.

            2. Multimode Data Access and Retrieval.

            3. On-line storage capability for observational data, NWP products, satellite and radar images.

            4. Storage Area Network (SAN) architecture with fast response time.

            5. Long term storage with data policy management facility.

            6. Task Centre to develop, test, schedule and operationalize the meteoro-logical products.

            7. Support research activities to value add our forecasting capabilities.

            8. Critical systems backup

9. CIPS consists of 14 numbers of high end HP ProLiant servers - 3 handling data management, 2 for project development, 2 for Project scheduling, 4 for project processing, 2 for backup & restore and 1 for managing external storage network.

Working based on Linux Operating System, CIPS incorporates a large number of state of the art development tools like GRIB decoders, GRIB converters, BUFR decoder, GEOTIFF decoder, gdal, GEOTIFF package & Scientific libraries : MET V2.0, IDV, IDL etc. with a variety of Compilers like  icc, ifort, Gcc, Gfortan and gmake.

5. Functions and Responsibilities of  the National Meteorological Telecommunication Centre, New Delhi

The following are the functions and responsibilities of NMTC New Delhi, both as  RTH and NMC under GTS:

·                    Collect the bulletins from their  associated NMCs  viz; Colombo, Dhaka, Karachi, Kathmandu, Male, and Yangoon and transmit them in the appropriate form on the Main Telecommunication Network, directly.

·                    Transmit on the Main Telecommunication Net-work directly as internationally agreed and in the appropriate form, the processed meteorological information produced by the RSMC, New Delhi.

·                    Relaying selectively on the circuits of the Main Telecommunication Network, as agreed, the bulletins which it receives from these circuits and/or from RTHs not situated on the Main Telecommunication Network.

·                    Ensure the selective distribution of bulletins to the associated NMCs and to the RTHs not situated on the Main Telecommunication Net-work which it serves;

·                    Before relaying message issued from its zones of  responsibility (as an RTH located on the MTN) on the GTS, checking the parts related to the telecommunication of the message in order to maintain standard telecommunication procedures;

·                    Establish data dissemination systems (terrestrial and/or via satellite) as required in accordance with regional plans;

·                    Carry out the monitoring of the operation of the GTS of the WWW;

·                    Maintain the Catalogue of Meteorological Bulletins as regards to  bulletins issued from the zone for which it is responsible i.e. Bangladesh, Bhutan, India, which it is responsible i.e. Bangladesh,  Bhutan, India, Maldives, Mayanmar, Nepal, Pakistan and Sri Lanka, for the collection, exchange and distribution of data, and also including data from the Antarctica, as appropriate.

·                    Collect observational data from its own territory and  other members according to bilateral agreements, as well as observational data from aircraft and ships received by centers located within the area of responsibility.

·                    Compile such data into bulletins and transmitting them on the GTS, in compliance with standard telecommunications procedures.

·                    Receive and distribute in accordance with bilateral agreements, observational data and processed meteorological information, to meet the requirements of the Members concerned.

·                    Collection of aircraft weather reports received from the collecting centers designated in the ICAO Regional Air, Navigation Plans.

·                    Exchange and distribution of output products of WMCs and RSMCs as well as World Area Forecast Centres (WAFCs) and Regional Area Forecast Centre (RAFCs), as required.

·                    Satellite broadcast of meteorological information.

 

6. Public Services

6.1    Website of IMD

Website of IMD is operational since 1st June, 2000.  It contains static & dynamically updated information on all India Weather and forecasts, special monsoon report, local weather forecasts for 200 cities, satellite cloud pictures (updated every hour), animated satellite cloud pictures, GFS, WRF etc. generated products and prognostic charts, special weather warnings, tropical cyclone information and warnings, daily,  weekly and monthly rainfall distribution maps, earthquake reports, etc.. This also contains a lot of static information including temperature and rainfall normal over the country and a brief overview of the activities and services rendered by India Meteorological Department. 

 This site can be accessed round the clock with the URL: http://www.imd.gov.in   The Regional Meteorological Centers have also their own websites.

The department has also launched a new user-friendly website for the public with URL http://www.India Weather.imd.gov .

India meteorological Department developed its own intranet   website at http://metnet.imd.gov.in exclusively for the use of IMD staff. All employees can access this site using their ID. This is a very useful site for all employees of IMD as Government of India Circulars/orders are available at one place along with personal details.

6.2 Interactive Voice Response  System

Popularly known as “Weather on telephone”, the Interactive Voice Response System (IVRS) is functioning with effect from July, 2000.  One can access current weather and forecast for major Indian cities by dialing Toll  free number 1800 180 1717. 

7. Training in Meteorological Telecommunication

Telecommunication Training Centre (TTC) was established in New Delhi in  September, 1977 for imparting training in Meteorological Telecommunications. It is one of the international training centers in the field of meteorological telecommunication recognized by the World meteorological Organization (WMO). 

The center is equipped with a lecture room and Interactive Board & Multiple projection System. One well equipped computer Lab with multimedia projector and twelve numbers of work station in LAN. WI-FI connectivity is also available in the lecture room & computer lab.

The center provides facilities for conference /workshops arranged by various divisions of IMD.

Syllabus of various Meteorological Telecommunication courses were revised keeping in view of the provision of self study/E/Learning at working place of trainees nominated for the courses.

The center has so far imparted to 1235 departmental personnel and 88 foreign personnel sponsored under various technical cooperation programmes such as ITEC, SAARC, Colombo Plan, UNDP and WMO.

The centre conducts the following courses:-

*          Elementary Training Course in met. Information System (Level-I) (Duration- 4 months)

*          Intermediate Course in Met. Information System (Level-I) (Duration- 4 months)

*          Advanced Course in met. Information System (level-III) (Duration- 6 months)

*          Short Term Course for Mechanics/Radio-Mechanics (duration- 1 month)

*          Familiarization Course in IT & Met. Telecommunication Techniques (Duration- 1 month)

*          Short Term Course in Fundamental of IT & PC applications (Duration- 1 month Afternoon only).

8.  Information Technology Cell

Considering the ever growing influence of Information Technology in day-to-day affairs of the department a new division was formed, initially, to coordinate the various IT related activities of the department. However, considering the administrative aspects as well as the inter-operability of communication and IT, this was brought, later, under the umbrella of Information System and Services Division (ISSD). The objectives of IT unit are:

a) Coordination of IT initiatives of the department

b) Supervise various IT projects to be implemented.

c) Asserting the IT literacy and imparting suitable mechanisms for its improvement.

d) Development of various in-house software for routine activities.

Conforming to these objectives, IT Division has developed an intra- IMD Portal, which can be considered as the first step towards e-governance implementation of the department.

Following are the services, made operational through this portal:

·                    Procurement Monitoring System

·                    Personal Information System

·                    IT Inventory System

·                    File Tracking System

·                    Leave Management

·                    Observatory Performance System

·                    Meteorological Photograph & Document Sharing System

·                    Abroad Visitor’s Information System

·                    IMD Directory Search System

·                    DGM’s engagement Monitoring System

·                    Upper Air Observatories Monitoring System

·                    Mausam Journal Catalogue

·                    Progress Report Display and upload

·                    Forecasting  facilities

·                    Fault Monitoring and Lodging System

·                    Biometric Attendance Record Updation

·                    Pensioner’s Corner

·                    PROMAN Ver 2.0- Project Monitoring System

·                    MIMS Ver 1.0- Met. Instruments Monitoring System

·                    Dakia- Dak Inventory Application

·                    IMD AWAS- Online Guest House Booking and Management System

 

·                    APARNA Ver 1.0- Annual Performance Appraisal Report Notation & Administration.

In addition, using the portal provision is made to:

a) To publish seniority list, Office orders and other documents of interest to IMD employees.

b) Publish Mausam Catalog for reference.

c) Download various forms of interest.

d) Display salary and payments to employees

 

9.  Ongoing Projects in ISSD

·     Proposal for FOR AMC for AMSS/HSDT/IVRS/PC/LAN & Other IT Infrastructure at H.Q and field Stations

·     Payment of Spectrum Charges to Ministry of Communication &    Information Technology  & recurring payment for GMDSS,SMS, VPN, SADIS, ISP,IPLC,RMDCN & other internet leased forRTH/GISC line and  circuits Delhi & Mirror RTH Pune.

·     Deployment of IT Security, Antivirus and IT services to  minimize the security risks threatening continuity of service and to establish safeguards to protect the organization’s information’s resources from theft, abuse, misuse and any form of damage .

·      Up gradation of LAN, UPS, Back up Power, PCs Adequate   Bandwidth etc. for communication with all IMD Offices.

·     VPN Circuits Installation, Commissioning & Up gradation  and NKN nodes connectivity between all RMCs/ MCs/DWRs/ AMOs for 1 GBPS links.

·     Designation of Regional Telecommunication Hub (RTH) New Delhi as a Global Information System Centre (GISC)/Data Collection Production Centres (DCPC), New Delhi for South Asia of World Meteorological Organization Information System (WMO-WIS).

 9.1 Future Plan

·  Replacement of Old AMSS at 4 Aerodrome Meteorological Offices Mumbai, Palam, Kolkata and Chennai.

·  Proposal for ISO Certification of ISSD, IMD, New Delhi.

·  Proposal for Development of centralized GIS based content managed website.

·  Proposal for Development of Met.GIS –Web based GIS portal.

 

ANNEXE-III

Circuit

Speed

Procedure Application

Exchange data type

New Delhi-Moscow

*IPVPN 2Mbps

TCP Socket, Simple  FTP

Message (A/N, BIN)†

New Delhi-Tokyo

*IPVPN 2Mbps

TCP Socket

Message (A/N, BIN)

New Delhi-Beijing

*IPVPN 2Mbps

TCP Socket FTP

Message (A/N)

New Delhi- Toulose

*IPVPN 2Mbps

TCP Socket

Message (A/N, BIN)†

New Delhi-Jeddah

64 KbPS

TCP Socket

Message (A/N)

New Delhi-Cairo

64Kbps

TCP Socket

Message (A/N)

New Delhi-Bangkok

64Kbps

TCP Socket

Message (A/N)

New Delhi-Melbourne

Internet

TCP socket, INT

Message (A/N)

New Delhi-Male

Internet

TCP socket, INT

Message (A/N)

New Delhi-Karachi

64 KbPS

TCP Socket

Message (A/N)

New Delhi-Muscat

Internet

TCP Socket, INT

Message (A/N)

New Delhi-Dhaka

64 Kbps

TCP Socket

Message (A/N)

New Delhi-Yangon

Internet

TCP Socket, INT

Message (A/N)

New Delhi-Colombo

Internet

TCP Socket, INT

Message (A/N)

New Delhi-kathmandu

Internet

TCP Socket, INT

Message (A/N)

 

ANNEXE-IV

 

Circuit

Speed

Procedure Application

Exchange data type

RTH New Delhi

8Mbps

TCP Socket, Simple  FTP

Message (A/N, BIN)

AMSS New Delhi(Palam)

512KbPS

TCP Socket FTP

Message (A/N, BIN)

AMSS Chennai(Meenambakkam)

512KbPS

TCP Socket FTP

Message (A/N, BIN)†

AMSS Kolkata(Dumdum)

512KbPS

TCP Socket FTP

Message (A/N, BIN)

AMSS Mumbai(Santacruz)

512KbPS

TCP Socket

Message (A/N, BIN)†

RMC Nagpur

512KbPS

TCP Socket FTP

Message (A/N, BIN)

RMC Guwahati

512KbPS

TCP Socket

Message (A/N, BIN)

RMC Kolkata

512KbPS

TCP Socket FTP

Message (A/N, BIN)

RMC Mumbai

512KbPS

TCP Socket FTP

Message (A/N, BIN)

RMC Chennai

512KbPS

TCP Socket FTP

Message (A/N, BIN)

DDGM(WF),Pune

512KbPS

TCP Socket FTP

Message (A/N, BIN)

RMTC,Pune

512KbPS

TCP Socket FTP

Message (A/N, BIN)

M.C Bhuvaneshwar

512KbPS

TCP Socket, FTP

Message (A/N, BIN)

 

 

Circuit

Speed

Procedure Application

Exchange data type

M.C Itanagar

256 KbPS

TCP Socket

Message A/N)

M.C Gangtok

256 Kbps

TCP Socket

Message (A/N)

M.C Agaratala

256 KbPS

TCP Socket

Message (A/N)

M.C Patna

256 Kbps

TCP Socket

Message (A/N)

M.C Ranchi

256 Kbps

TCP Socket

Message (A/N)

M.C  Raipur

256 Kbps

TCP Socket

Message (A/N)

M.C Bhopal

256 Kbps

TCP Socket

Message (A/N)

M.C Bangaluru

256 Kbps

TCP Socket

Message (A/N)

M.C Hyderabad

512 Kbps

TCP Socket

Message (A/N)

M.C Thiruvanathapuram

256 Kbps

TCP Socket

Message (A/N)

M.C Shimla

256 Kbps

TCP socket

Message (A/N)

M.C Lucknow

256 Kbps

TCP socket

Message (A/N)

M.C Chandighar

256 Kbps

TCP socket

Message (A/N)

M.C Dehradun

256 Kbps

TCP Socket

Message (A/N)

M.C Jaipur

256 Kbps

TCP Socket

Message (A/N)

M.C Srinagar

256 Kbps

TCP Socket, FTP

Message (A/N, BIN)

M.O Palam

512 Kbps

TCP Socket, Simple  FTP

Message (A/N, BIN)

M.O Panjim (Goa)

256 Kbps

TCP Socket

Message (A/N)

M.O Imphal

256 Kbps

TCP Socket

Message (ASCII)

DWR  Palam

512 Kbps

TCP Socket, Simple  FTP

Message (BIN)

 

 

 

Circuit

Speed

Procedure Application

Exchange data type

DWR Mumbai

256 Kbps

TCP Socket, Simple FTP

Message (BIN)

DWR Kolkata

256 Kbps

TCP Socket, Simple  FTP

Message (BIN)

DWR Agartala

256 Kbps

TCP Socket Simple  FTP

Message (BIN)

DWR Mohanbari

256 Kbps

TCP Socket Simple  FTP

Message (BIN)

DWR Nagpur

256 Kbps

TCP Socket Simple  FTP

Message (BIN)

DWR Patna

256 Kbps

TCP Socket Simple  FTP

Message (BIN)

DWR Chennai

256 Kbps

TCP Socket Simple  FTP

Message (BIN)

DWR Lucknow

256 Kbps

TCP Socket Simple  FTP

Message (BIN)

DWR Patiala

256 Kbps

TCP Socket Simple  FTP

Message (BIN)

DWR Bhuj

256 Kbps

TCP Socket Simple  FTP

Message (BIN)

DWR Vishakhapatnam

256 Kbps

TCP Socket, Simple  FTP

Message (BIN)

CDR Kochi

256 Kbps

TCP Socket Simple  FTP

Message (A/N)

CDR Karaikal

256 Kbps

TCP Socket Simple  FTP

Message (A/N)

CDR Machilipattnam

256 Kbps

TCP Socket Simple  FTP

Message (A/N)

AMO Mohanbari

256 Kbps

TCP Socket

Message (A/N)

 

 

 Circuit

Speed

Procedure Application

Exchange data type

AMO Bengaluru

512 Kbps

TCP Socket

Message (A/N)

AMO Hyderabad

512 Kbps

TCP Socket

Message (A/N)

AMO Thiruvanathapuram

256 Kbps

TCP Socket

Message (A/N)

AMO Ahmedabad

256 Kbps

TCP Socket

Message (A/N)

CWC Vishakhapatnam

256 Kbps

TCP Socket

Message (A/N)

NCMRWF,NOIDA

512KbPS (VPN), NKN

TCP Socket

Message (A/N, BIN)

DDGM(UI),RADAR LAB

512 Kbps

Simple  FTP

Message (BIN)

IAF

2 Mbps

Simple FTP

Message (A/N, BIN)

NHAC, HCPS

LAN

Simple FTP

Message (A/N, BIN)

 

Telecom Facilities used in the National Meteorological Telecommunication Network(NMTN)

Station with Automatic Message switching System(AMSS)

6

Centralized  IVRS System 

1 (updating from 26 stations)

High Speed Data Terminals

27

Station with V-SAT  Facility

26

Station with VPN Links

54

Station with Telefax facility

115

Station with internet facility

211

PC based Current Weather Display System

4

 

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