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9 incidents happened in 2005

In 2005, a maritime incident led to the suspension and resumption of weather observation reports by Japanese VOSs. Learn about the measures taken and the impact on data quality checks.

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9 incidents happened in 2005

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  1. 9 incidents happened in 2005

  2. Distribution of reports from Japanese VOSs

  3. VOSs locations on websites

  4. September 16, 2005 Maritime bureau of Ministry of Land, Infrastructure and Transport (MLIT) asked the CSOs to suspend making weather observation reports due to exposure of ship’s callsign and position on public websites. Since then, JMA had discussed with relevant parties (Shipowners’ Association, MLIT, Coast Guard) to seek for measures to resume making weather observation reports. September 22, 2005 MLIT asked the CSOs to resume making weather observation reports by using dummy callsign “SHIP”.

  5. Real time reports from Japanese VOSs [Reports] 9/16 9/22 [Date]

  6. Number of Japanese VOSs ［Number of ships］

  7. Dummy Callsign Callsign BBXX SHIP 26034 99070 11623 41/97 70103 10283 20230 40079 57018 70222 83963 22263 00294 1//03 20100 32414 40702 50702 70016= BBXX JGQH 26034 99070 11623 41/97 70103 10283 20230 40079 57018 70222 83963 22263 00294 1//03 20100 32414 40702 50702 70016= Since September 22, 2005 GTS INMARSAT JMA Converted Non-Converted JMA cannot make enough quality checks on Japanese VOSs data. VOSs Yamaguchi (Non-Converted data) (Converted data)

  8. Dummy Callsign Callsign BBXX SHIP 26034 99070 11623 41/97 70103 10283 20230 40079 57018 70222 83963 22263 00294 1//03 20100 32414 40702 50702 70016= BBXX JGQH 26034 99070 11623 41/97 70103 10283 20230 40079 57018 70222 83963 22263 00294 1//03 20100 32414 40702 50702 70016= An Exapmple to improve INMARSAT JMA GTS Yes VOS wantto use dummyCallsign？ Converted No Non-Converted VOSs Yamaguchi JMA can make quality checks on Japanese VOSs data. Is it globally agreeable? (Non-Converted data) (Converted data)

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