MIRAI Equipments Meteorological observation

Doppler radar

  • Manufacturer : Mitsubishi Electric Corporation

By Transmitting C-band microwave, the rainfall intensity, wind speed and wind direction are measured from the intensity of reflected wave, and the doppler shift. In order to remove the influence of the rolling/pitching and ship speed, the antenna is contralled by high accurate INS(Inertial Navigation System).

General maritime meteorological observation system

  • Manufacturer : Koshin Denki Kogyo Co., Ltd.

Air temperature, dew point, atmospheric pressure, wind speed/direction, precipitation, solar radiation, upward radiation and sea surface temperature are continuously observed through sensors set up at various points on shipboard. The combined wave heights and period are continuously measured by wave gauges(microwave type) mounted on the bow and aft.

Radiosonde

  • Manufacturer : VAISALA Inc.
  • Type :
  • DigiCORAIII MW31 (MR11-03 - )

    DigiCORA MW23 (MR04-03 Leg1 - MR11-02)

    DigiCORA MW11 ( - MR04-02)

Radiosonde is used for upper-air observation. This system is combined the lightweight measuring units(atmospheric pressure, temperature and humidity) and the compact radio transmitter, to which a helium filled rubber balloon is fixed, and data are collected to the altitude of 20km. The position of radiosonde is determined by GPS, and the direction and speed of the winds are measured.

Satellite data receiving system

  • Manufacturer : SeaSpace Corporation NIHON HAKUYO ELECTRICS, LTD

This system has the polar-orbit satellite(NOAA, SEASTAR, ADEOS) data receiving systems and the geostationary meteorological satellite(GMS, GOES METEOSAT) data receiving systems.

SOAR (Shipboard Oceanographic and Atmospheric Radiation)

  • Manufacturer : BROOKHAVEN NATIONAL LABORATRY

Air temperature, humidity, atmospheric pressure, wind speed/direction, precipitation, solar radiation(shortwave, long wave) and scattered light in multi-spectrum are measured through sensors installed on the foremast.

Ceilometer

  • Manufacturer : VAISALA Inc.
  • Type : CT-25K

Ceilometer measures cloud base height by laser pulse emitted vertically. Up to 7.5km of cloud base can be detected by measuring the change of strength of backscatter signal.