19
Cs『 Åヅ.j 心-~-4 Renewal Plan of Computer System and Telecommunication Facilities at MeteorologicalSatellite Center* System Engineering Division** Meteorological SatelliteCenter Abstract The current computer system at DPC will be replaced by a new computer system in March 1987. The new computer system is being installed in order to be used for system check-out for six months before it begins routine operation. Hourly basis imaging in northern hemisphere will start at this time. Following the computer replacement, the telecommunication facilities at CDAS and DPC will be replaced with new ones in March 1988. Stretched VISSR dissemination for all VISSR observations will start at this time, and HR-FAX transmission through satellite will be quit in a few month after March 1988. Therenewal plan of the DPC computer system, which is going on, and the coming renewal plan of the telecommunication ground facilitiesare described in this article with the following three chapters : I. New computer system and products of Meteorological Satellite Center, II.Renewal plan of the ground telecommunication facilities,and Ⅲ. Future schedule of VISSR observation and FAX dissemination. Chapter l. New Computer System and Prpducts of Meteorological Satellite Center*** 1。 Introduction The computer system being used at Mete- orological SatelliteCenter (MSC) at present was established in April 1977. Fig. II shows the general concept of the current computer system being used at MSC. * System Engineering Division, Meteorological Satellite Center 3-235 Nakakiyoto, Kiyose, Tokyo 204, Japan. **Thisarticlewas edited by T. Hamada, System Engineering Division in cooperation with other staffs at System Engineering Division and Facilities Division, MSC, and Office of Mete- orological Satellite Planning, JMA. ***Hideyuki Hasegawa, Takashi Oshima and Ta- daaki Hamada, System Engineering Division The new computer system is to be in- stalled at MSC in September 1986, and then various kinds of check-out of the system are to be done to validate the performance of the new computer system with inter- mittence of VISSR observations, until full operation of the new computer system is started in March 1987. The conceptual illus- trationof the new computer system is shown in Fig. 1-2. 2. New Computer System The new computer system consists of four main frames. They are primary satellite

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  • Cs『

    Åヅ.j

    心 - ~ - 4

    Renewal Plan of Computer System and Telecommunication

        Facilitiesat MeteorologicalSatelliteCenter*

    System Engineering Division**

       MeteorologicalSatelliteCenter

             Abstract

       The current computer system at DPC will be replaced by a new computer system in

    March 1987. The new computer system is being installed in order to be used for system

    check-out for six months before it begins routine operation. Hourly basis imaging in

    northern hemisphere will start at this time.           ・

       Following the computer replacement, the telecommunication facilities at CDAS and

    DPC will be replaced with new ones in March 1988. Stretched VISSR dissemination for

    all VISSR observations will start at this time, and HR-FAX transmission through satellite

    will be quit in a few month after March 1988.

       Therenewal plan of the DPC computer system, which is going on, and the coming

    renewal plan of the telecommunication ground facilitiesare described in this article with

    the following three chapters :

       I. New computer system and products of Meteorological Satellite Center,

       II.Renewal plan of the ground telecommunication facilities,and

       Ⅲ. Future schedule of VISSR observation and FAX dissemination.

    Chapter l. New Computer System and Prpducts of

            Meteorological Satellite Center***

    1。 Introduction

     The computer system being used at Mete-

    orological SatelliteCenter (MSC) at present

    was established in April 1977. Fig. II

    shows the general concept of the current

    computer system being used at MSC.

     * System Engineering Division, Meteorological

      Satellite Center 3-235 Nakakiyoto, Kiyose,

      Tokyo 204, Japan.

     **Thisarticlewas edited by T. Hamada, System

      Engineering Division in cooperation with other

      staffs at System Engineering Division and

      Facilities Division, MSC, and Office of Mete-

      orological Satellite Planning, JMA.

    ***Hideyuki Hasegawa, Takashi Oshima and Ta-

      daaki Hamada, System Engineering Division

    -

     The new computer system is to be in-

    stalled at MSC in September 1986, and then

    various kinds of check-out of the system

    are to be done to validate the performance

    of the new computer system with inter-

    mittence of VISSR observations, until full

    operation of the new computer system is

    startedin March 1987. The conceptual illus-

    tration of the new computer system is shown

    in Fig. 1-2.

    2. New Computer System

     The new computer system consists of four

    main frames. They are primary satellite

    1 -

  • METEOROLOGICAL SATELLITE CENTER TECHNICAL NOTE Nal5 MARCH 1987

    一 2 -

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  • 心t

    気象衛星センター 技術報告 第15号 1987年3月

     Fig. 1-2 Conceptual scheme of the new computer system.

    Acronym

    ADESS:

    CCP  :

    CDAS

    D/A

    DCP

    FS

    GOC

    HCCP

    IPC

    MMC

    一巻

    φ・

    一一

    ・e

    ●ゆ

    ・・

    SDC  :

    TSS  :

    Automatic Data Editing and Switching System

    Communication Control Processor

    Command and Data AquisitionStation

    Digitalto Analogue

    Data CollectionPlatform

    Frame Synchronizer

    GMS Operating Console

    High speed Communication Control Processor

    Image Processing Console

    Mass Memory Controller

    ScheDuIe operationConsole

    Time Sharing System

    - 3 -

    ・ - - ・

    It14IIIII自11-

  • METEOROLOGICAL SATELLITE CENTER TECHNICAL NOTE Nal5 MARCH 1987

    control and operation system, a secondary

    satellite control and operation system, a

    primary image data processing system・ and

    a secondary image data processing system.

     The new computer system has a very

    large mass storage equipment which can be

    accessed commonly from any of the four

    systems and enables inter-system communi-

    cation and data exchange.

     The state of resource assignments and

    job prosecutions of all four computer sys-

    terns can be monitored and controlled by

    the Schedule and DCP Operating Console

    (SDC)which consists of 4 character displays

    and so on.

    A. Satellite Control and Operation System

     The host computer of the primary satellite

    control and operation system is FACOM

    M-360R. Principal peripheral equipments of

    the system are a magnetic tape unit with

    2 tape drivers, 4 color graphic displays (GDs),

    a color hard copy unit, a line printer, a

    communication control processor (CCP), etc.

     Main duties of the primary satellite con-

    trol and operation system are ;

     a. Reception of GMS telemetry data and

       CDΛS telemetry data,

     b. Generation and transmission of tele-

       commands signal for GMS operation,

     c. Support of satellite housekeeping and

       analysis,

     d. Reception of tri-Iateral  range and

       ranging rate data to be used for the

       satellite orbit determination,

     e. Transmission of S/DB information,

     f. Transmission of various kinds of re-

       trieved meteorological information to

       ADESS system in JMA, etc.

     Whenever the primary satellite control

                               -

    and operation system gets down due to some

    failure, the secondary satellite control and

    operation system is to take its place as a

    new primary system as soon as possible and

    to succeed the primary system's jobs.

    B. Primary Image Data Processing System

     The host computer of the primary image

    data processing system is FACOM M-380S.

    Principal peripheral equipments of the sys-

    tern are a magnetic tape unit with 2 tape

    drivers, a line printer and a high-speed

    communication control processor (HCCP),

    etc.

     Main duties of the primary image data

    processing system are ;

     a. Reception of GMS VISSR data and

       HRPT data of polar orbiting satellites,

    b. Calculation of calibration pararrieters

       such as temperatufe and albedo,

     c. Generation and transmission of LR-

       FAX(low resolution facsimile) and HR-

       FAX (high resolution facsimile) data,

     d. Preparation of pre-processed image

       data set of VISSR and HRPT the

       purpose of which is to transform the

       original raw data into a more feasible

       form for direct access in the secondary

       image data processing system, etc.

     In the primary image data processing

    system, almost all jobs are carried out auto-

    matically according to a schedule. Whenever

    some failure happens in the system or the

    system gets down, the secondary image

    data processing system is to succeed the

    jobs of the primary system as a new primary

    system to make the discontinuity of jobs in

    the primary image data processing system

    as short as possible.

    C. Secondary Image Data Processing System

  • ’?IS、`ぃぷ訟

    気象衛星センター 技術報告 第15号 1987年3月

     The host computer of the system is an-

    other FACOM M-380S. Main peripheral

    equipments are a magnetic tape unit with

    4 tape drivers, two GDs, 2 sets of man-

    machine interactive image data processing

    equipments called IPC (Image Processing

    Console), a cassette magnetic tape unit

    which controls and drives TV video type

    cassette magnetic tape up to 10 at one time,

    a line printer, etc.

     Main jobs performed in the secondary

    image data processing system are ;

     a. Cloud motion wind derivation,

     b. Cloud amount distribution retrieval,

     c. Clear radiation field retrieval,

     d. Surface temperature field retrieval,

     e. Vertical profile retrieval of tempera-

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       ture and water vapor using TOYS

       data of NOAA series satellites,

     f. Typhoon center location and intensity

       estimation analysis based on the

       Dvorak's method,

     g. Determination and prediction of the

       satellite's orbit and attitude. and so on.

     By means of IPC, various kinds of image

    data processing such as cloud motion wind

    derivation, center location and intensity

    analysis of typhoons, nephanalysis, etc, are

    to be performed operationally. Making use

    of refresh memory equipment called MMC

    (Mass Memory Controller) animation of cloud

    images from up to 24images can be provided

    on the high resolution color display screen

    (1024×1024 dots)of IPC. IPC is also to be

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    F11.1-3 Format of four-sectorized LR-FAX picture

    一 5 -

  • METEOROLOGICAL SATELLITE CENTER TECHNICAL NOTE N(λ15MARCH 1987

    used for non-operational works such as

    research and development works.

    3. Principal product changes on the

      new computer system

    A. Primary Image Data Processing System

     Principal changes in the new primary

    image data processing system are as follows.

    (1)LR-FAx image

     The formats of FAX image are changed

    as follows.

     a. Current seven-sectorized pictures for

        LR-FAX are replaced by four-sector-

        ized pictures. The format of four-

        sectorized pictures is shown in Fig・

        I-3.

     b. Partial pictures, H(infrared), I(visible)

    and J(enhanced infrared), will be

    changed : These images are currently

    only sectorized images covering Japan

    and contiguous sea area. They are

    changed to the images with polar-

    stereograph ic projection covering Far

    East area including Japan and contig-

    uous sea. The format of polar-stereo-

    graphic pictures is shown in Fig. 1-4.

    (2) Basic histogram image data

     This is a new product. Basic histogram

    data are calculated three hourly from VISSR

    infrared or visible data in 0.25°-latitude by

    0.25°-longitude boxes. Processed area is

    from 60°N to 60°S and from 80°Eto 160°W.

    The histogram data are to be used as a

    basic source data for cloud amount retrieval.

    Fig. I-4 Format of polar-stereographic picture over

     the Far East area surrounding Japan.

       Scale : 1/30-million

    - 6 -

  • 気象衛星センター 技術報告 第15号 1987年3月

    clear radiance retrieval, surface temperature

    retrieval, etc. in the secondary image data

    processing system.

    B. Secondary Image Data Processing System

     Primary changes in the secondary data

    processing system are as follows.

    (1)CloudMotion Wind Estimation (CWES)

     Basically the method for low-level cloud

    motion wind derivation is not changed, that

    is, the calculation is carried out automati-

    cally. In the new system the LF(Loop

    Film) method is no longer used for the

    calculation of high-level wind. The high-

    level cloud motion wind calculation will be

    done by the method shown as follows ;

     a. Automatical procedure : almost the

       same method as the current method

       used in the low-level cloud motion

       wind calculation with change of pa-

       rameters to choose cirrus level cloud

       targets.

     b. Man-machine interactive procedure :

       just like LF method by man but by

       means of IPC.

     Currently cloud motion wind estimation

    is being carried out twice a day. In the

    new system it is to be carried out 4 times

    per day ; at 00Z and 12Z in whole coverage,

    and at 06z and 18z in the northern hemi-

    sphere. Steering level assignment method

    is not changed, that is, the low-level cloud

    motion winds are assigned to fixed level,

    850 mb, and the high-level cloud motion

    winds to 200, 250, 300, 0r 400 mb depending

    upon the season and the latitudes.

    (2) Surface Temperature Estimation

     In the new computer system, at first clear

    radiance field data are retrieved by analyz-

    -

    ing the basic histogram data for each 0.25°-

    latitude by 0.25°-longitude box. And then

    surface temperature data are retrieved from

    the clear radiance data with new air mass

    correction method which incorporates radi-

    ative transfer model using objectively ana-

    lyzed vertical temperature and humidity

    profile data received from numerical pre-

    diction division of JMA. Thus more accurate

    surface temperature retrieval is expected.

    (3)CloudAmount Distribution Retrieval

     High-level, low-level and total cloud

    amounts are produced in the same way as

    currently used, but threshold values between

    the levels are determined using the clear

    radiance data and vertical profile data

    described above.

    (4)TyphoonCenter Location and Intensity

       Analysis

     In the new computer system it is carried

    out making use of IPC on both infrared and

    visible images (infrared data are to be main

    to make daytime and nighttime analyses

    compatible). The results will be distributed

    within 30 minutes for center location and

    50 minutes for intensity after the obser-

    vation time.

    (5) SatelliteClond Information Chart

       (AdvancedTBB Contour Chart)

     This products are new one improved from

    the present nephanalysis chart and the TBB

    contour chart, and are disseminated in quasi-

    real-time. This chart will contain the cloud

    area information which is added automati-

    cally and/or man-machine interactively.

    There are two kinds ol products; one covers

    vicinity of Japan area, and the other Far

    East area including Western Pacific area,

  • METEOROLOGICAL SATELLITE CENTER TECHNICAL NOTE Nal5 MARCH 1987

    which are called“ Vicinity of

    Area Chart ” and “ Far East

    Chart ”respectively.

    Japan (VJ)

    (FE) Area

     The VJ area chart designed to support

    the local field forecaster is disseminated

    within 45 minutes after each 3-hourly map

    time to JMA local stations by using land

    line (Fig. 1-5)。

     The FE area chart designed to support

    the aviation fieldforecaster is disseminated

    within 50 minutes after each 3-hourly map

    time. The analysis area covers from the

    Fie, I-5 An example of Satellite Cloud Information Chart for vicinity of Japan area (VJchart). Obser-

     vation time is 0300Z 7 May, 1986. TBB contour interval is 10 degrees from -10°Cto -50°C. Contour

     lines of -10°C and -30°C are presented by thick full line, and those of -20°C and -40°C by

     thin full line. Areas surrounded by tick mark lines are those colder than -50°C. Categorized

     cloud top levels are presented by the shading with thin short line, thin long line, thick short

     line, and oblique line. Minimum/maximum TBBs within contours are shown in numerics. Grid

     point TBBs in the cloud area without contours are also presented by numerics with equal inter-

     val. Letters A, B, and C indicate the developing/decaying features of cloud systems. Cloud

     shapes and cloud line/streaks in the significant cloud portions are indicated by several kinds of

     symbols. Fog areas which are detected by man-machine interaction are presented by the

     dashed line.

  • 気象衛星センター 技術報告 第15号 1987年3月

    Fifir.I-6 An example of Satellite cloud Information Chart for Far East area (FE chart). Observa-

     tion time is 0300Z 7 May, 1986. TBB contour intervals are 30 degrees from -10°Cto -70°C.

     Categorized cloud cloud top levels are given by the same shaded patterns as shown in Fig. 1.

     Minimum TBB are presented on each Most-high level cloud area.

    equator to 60°N and from 90°E to 170°w.

    This product will be disseminated to local

    aviation stations of JMA by using land line

    (Fig. 1-6).

    Chapter II. Renewal Plan of the Ground

             telecommunication Facilities*

     Following the replacement of the computer

    system of Meteorological Satellite Center

    (MSC) in March, 1987, the GMS ground

    telecommunication system will be partially

    renewed in March,1988. The renewal

    schedule of the ground facilities atpresent

    is shown in Fig. II-l. The figure also in-

    *TakaoSuzuki and Shinya Ueda

    -

    eludes the renewal plan of DPC computer

    system already described in the Chapter l.

    This paper explains the renewal plan of the

    ground telecommunication facilities.

    1. Ground telecommunication facilities

     GMS ground telecommunication facilities

    of JMA consist of the CDAS system and

    9 -

  • METEOROLOGICAL SATELLITE CENTER TECHNICAL NOTE No.15 MARCH 1987

    Item

    1986 1987 1988

    7 8 9 10 11 12 l 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8

    1. DPC Computer

     (1) Present System

     (2) New System

    2. CDAS System

     (1) PresentSystem

     (2) New System

    3. StretchedVISSR

    OperationService

        I          I      System Check                  Operation ServiceInstallation    Out& Adjustments

               Operation Service

      Equipment Design       & Manufacturing

                          Installation      ・System Check   Operation                      & Adjustments    out with DPC      Service                                   Computers                                   ・Total System                                   Check out with                                   DPC and GMS-3                                   ・Off Service                                   Operation Test

                                                    Operation                                                  Service

    Fig. II 1 Renewal schedule of telecommunication ground facilities.

    DPC (MSC) system as shown in Fig. II-2.

    The new system will be improved in the

    present system and enable it to perform

    following functions :

     a. to transmitdigitaレformed Stretched

        VISSR signal to MDUS's via GMS-3

        insteadof current HR-FAX transmis-

        sion,

     b. to be operated almost automatically

        usingcomputer system, and

     c. to record FAX images on film for

           ● ●    archiving.

     The concept of the new computer con-

    trolledtelecommunication system is shown

    in Figs.II-3 and II-4.

    2. CDAS・ System

     Major function ofthe improved CDAS

    system are as follows.

    a. S-VISSR signal generation

     Received VISSR signals are demodulat-

    ed, decoded and sent to the processor.

    The data are calibrated, resampled and

    then stored in the line buffer memories.

    The raw VISSR data are reformatted and

    two types of stretched VISSR data are

    produced. One is for direct broadcasting

    via satellite, and the other for transmis-

    sion to DPC.

    b. Monitor and Control

     The ground system is controlledand

    monitored on CRT displaysand keyboards

    interfacedwith the computer system.

    3. DPC System

     Major functions of the improved DPC

    telecommunication system are as follows.

     a. VISSR Interface

    10 -

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  • 気象衛星センター 技術報告 第15号 1987年3月

    Fig.II-4 Diagram of new telecommunication system at DPC.

     S-VISSR data from CDAS are bit-syn-

    chronized, decoded and transferred to the

    main computer system of DPC.

    b. Centralized control and monitor console

     The equipments have the following

    functions:

     (1)The signals to/from CDAS and the

        DPC main computer system are

        monitored and switched as necessary,

     (2)The signals to JMA head office

        are monitored and controlled, and

     (3)The system equipments are con-

        trolled and monitored.

    c. Image recorders

     HR-FAX to be used in DPC and JMA

    HQ and LR-FAX images are automatically

    recorded on films for archiving.

    Chapter III. Present and Future Schedule of VISSR

              observationand FAX Dissemination*

     The computer system operated at the

    Data Processing Center (DPC), Meteorologi-

    cal SatelliteCenter, will be replaced by a

    new computer system in March 1987. Fur-

    thermore, the new telecommunication ground

    facilitieswill be introduced in March 1988

    * Tadaaki Hamada and Hideyuki Hasegawa

    and Stretched VISSR rS. V.) dissemination

    will begin at this time. The transition of

    the VISSR observation and dissemination

    schedule is briefly summarized in Table

    III-l。

     After introduction of the new system,

    FAX dissemination schedule will be changed

    according to three phases, 1.11 and III. After

    13-

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  • 気象衛星センター 技術報告 第15号 1987年3月

    Phase n, all VISSR observation data will be

    transmitted in the form of Stretched VISSR

    (S.V.) on real time basis.

    1. Present schedule

     The VISSR observation has been currently

    performed on three hourly basis. Three

    images are additionally taken at around

    00z and 12z each for cloud motion wind

    derivation. The current observation and

    transmission schedule is shown in Fig. III-l.

    2. Phase l

     After the new computer system is intro-

    duced the three hourly basis will‘ be still

    kept for full disk observation. Additionally

    hourly observation for the northern hemi-

    sphere will be performed, but sometimes it

    will be missing due to system maintenance,

    etc. (Fig. III-2).

    2.1. VISSR observation

     The VISSR observation times are as fol-

    lows. The observation starting times are

    at about 30 minutes before the observation

    times.

     (1) Regular observation

        ―Full disk image

         3 hourly basis; 00, 03,…& 21Z.

         Additional observation

          for VIS calibration ; 16Z

         For wind derivation (12,00Z);

          1100, 1130,2300&2330Z.

        ―Half disk image covering northern

          hemisphere

         For wind derivation (06, 18Z);

          0500,0530,1700&1730Z.

     (2) Semi-regular observation

        -Half disk image covering northern

          hemisphere

                            -

         Hourly basis;at each hour except

          for regular observation.

     (3) Special observation

        ―Limited area around Australia

         Hourly basis; at each hour except

          for regular observation.

    2.2. Facsimile dissemination throusrh

       satellite

     The following facsimile images are dis-

    seminated during the Phase l period.

     (1)HR-FAX

        ―Fulldisk image

          (IR);00, 03,…& 21Z.

          (VIS); 00, 03 & 06Z.

        ―Mercator's projection around

         equator(IR); 00, 06, 12 & 18Z.

     (2)LR-FAX

        ―4-sectorizedfulldisk

          (IR);00,03,…& 21Z.

         Polarstereographic projection

          Image H (IR); Hourly

          Imagel (VIS) or J (enhanced IR);

           Hourly except for 05,11, 17 &

           23Z.

    3. Phase II

     After the introduction of the new tele-

    communication ground facilities,the stretch-

    ed VISSR digital data disseminations for all

    observations will be started, still keeping

    analogue HR-FAX dissemination. During

    the Phase II period, the VISSR observation

    and FAX dissemination schedule will be the

    same as during the Phase l period (Fig. Ill-

    2). During the Phase II period, MDUS re-

    ceiving facilities have to be replaced by

    stretched VISSR receiving ones.

    15 -

  • METEOROLOGICAL SATELLITE CENTER TECHNICAL NOTE Nal5 MARCH 1987

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    081                   31                       561   R-MT S   I

    皿皿

    090           4 1に                                 58

    IR-DK 9   1  1           H・ IorJ・A・B・C・D・E・F・G-9          1

    10o二              26   31                     56

    皿皿 皿皿

    11Oに                    26   31                      56

    皿皿W皿 皿皿

    1205           18 21

    I   IR一DK 12  1  1          H・J・A・B・C・D・E・F・G-12

    13リ             トフ=万々14

    151                  3

       IR-MT 12          皿VI 6 ’ 。隠顕尚鋤賜賑

    1605           18 21

    l    lR一DK 16 1  1          H・J・A・B・C・D・E・F・GTy16

    17 1‾ぞ                              3    圖菊素顔瀕  V1 8 ’ 。   齢

    1805           18 21

    I   IR一DK 18  1  1          H・J・A・B・C・D・E・F・G八二

    19」Uf             卜万m『岬20

    11           24     31                       56

    I R-MT 1 a          皿  訟滴繁磁 誕V?1端ー一心諭。順司篇

    2101           14 17                                      58

    IR一DK 21   1   1           H・ lorJ・A・R・C・D・E・F・G-2 1         1

    2201                      26   31                       56

    腸腸席順嘔4§脚部ミ四 皿皿

    2301                      2S   31                       56

    四§諾諾路W3郊腐夥齢鰐場柴腐諾器皿 皿皿

    ABBREVIATIONS

    VISSR OBSERVATION

     vnn:VISSR OBSERVATION OF naZ Wnn:VISSR WIND OBSERVATION

    HR一FAX DISSEMINATION

     IR一DK   : INFRARED FULL一DISK

     VS一DK   :VISIBLE FULL一DISK IR一MT   : INFRARED MERCATOR TP/MANAM:TEST PATTERN OR

              MANUAL AMENDMENT

    LR-FAX DISSEMINATION A~G:7-SECTOR IZED INFRARED

         FULL一DI SK H  :INFRARED SECTOR OF JAPAN I  :VIS IBLE SECTOR OF JAPAN J  :ENHANCED INFRARED SECTOR

         OF JAPAN T/M:TEST PATTERN/     MANUAL AMENDMENT

    TRRR:TRILATERATION RANGE AND     RANGE RATE

    Fig. nil Current VISSR/FAX schedule.

    16 -

  • 気象衛星センター 技術報告 第15号 1987年3月

    GMT 0         1

        1     1

    J         20         30         40         む0         6a

         l     l     l     l     l     l     l     l     l     ・

    00 Uに    10  15 16        29 31      41  45        泡Hり-0 AO IR-DK O 匹 I   B・C・D-0   l

    01 OL       10    16           池31        41  45          57H・I-1 VS-DK O 碕・4祠V?倆硲硲   に‾匹

    020に    10      21    四31                56

    H・【-2 「(TRRR)¬  臨梨端喘脇娑犀聯箭谷4V

  • METEOROLOGICAL SATELLITE CENTER TECHNICAL NOTE N0.15MARCH 1987

    UiVll  P    I    1 0    I    2p     .    JI?    ,   41J     ,   5p    ,   6p

    00 01^  恥         16            s 31             &1   s        F77H-0 ^ c・D-nI

    01 o二J        16        26   31           &l  jl只      SH-1 匹   匹皿 「‾mT¬

    02 0ご(X5           24  S 31                56H-2 「F二‾y¬ 四皿

    03 oご(X5      16        S 31        ま4  4只     57H-3 「匹 巨蔭S函7V4溢海端扁嗣 l l C・D-3 1

    04 OL____(X;        16   21 24                      49   54   59H-4 「丁二‾4‾‾‾l  mv5皿  | I H-5 1

    05 O二               26   31                      56皿皿 皿皿

    0601  (X5      16        s31        44  48     57

    H-6 臨7 匹

    07 oに (X5        16   21        31           44  48      56H-7 「Tこ‾7‾‾1            V8 .賜       「(TRRR)¬

    08o二(X5        16   21        31                      56

    H-8 「‾r‾こi「1          .・勝一。。眼V9

    09 oご(X5      16        29 31        44  48     F77H-9 J・A・B-9     臨回顧巨‾V10‾謳皿『‾‾|  「‾C‾;‾「」‾=i‾‾‾1

    1001   06         16    21  24                        49   54    s.q

    H-10 □‾二T百‾1         i VI 1腸賜腸皿皿g    「汀二Ti¬

    11 o二               26   31                      56皿皿四皿

    1201 (X5      16        S 31        44  48     177

    H-1 2 J・A・B-1 2     s 詣縦訟VIR臨能頴臨 「C- D-1 2¬

    13o二(X;        16   21        31           44  48      56

    H-13 「丁こTrl          篇朧朧鮨vht装 篇裂 「(TR・‾拓‾‾‾1

    14OL_____(X5        16   21        31                      56

    H-14 「丁二‾m    。s脳朧朧V15 朧朧朧

    150                           3

           H・J・A・B・C・D-1 5             臨協四順路濡幕v1皿

    160             1    1                              54

    I H-16 1         F7'ri‾iS    g       ゛sv17疆犯一篇誕嫉謳゛g諾     i!可二T了?

    170                      26   31                      56

    皿皿§皿糾謐御圖g 皿

    18Oに 06      16        S 31        44  48     57

    H-18 I・A・R- 1 R  l i V ^ Q忿怒2訟堡 「び七戸‾『F‾1

    19OL______(X5        16   21        31           44  48      56

    H-19 「丁二Tn 皿詣認諾V7n騒謡臨腐S m‾m‾‾‾‾1

    20OL____(X5        16   21        31                      56H-20 「丁二‾n‾1 四四

    21O二(X5      16        S3 44  48       57

    H-2 1 J・A・B-2 1  1 醤脂皺ぬV22編脇臨謳 「C・D-21‾1

    22Oに (X;        16   21 24                      49   54   S

    H-22 「T‾二T2l   a ’      深V23’前端頻頻剱謳論 ’    「H23¬

    230                      26   31                      56皿皿 皿皿

    ABBREVIATIONS

     VISSR OBSERVATION  vnn:VISSR OBSERVATION OF nn Z  Wnn:VISSR WIND OBSERVATION

     TRRR:TRILATERATION RANGE AND      RANGE RATE

    LR-FAX DISSEMINATION A~D:4-SECTORIZED INFRARED

         FULL-DISK H~J:IR. VIS AND ENHANCED IR

         POLAR-STEREOGRAPH I C COVER

         THE FAR EAST AREA MNM:MANUAL AMENDMENT     WITH TEST PATTERN

    Fig. III-3 VISSR/FAX schedule during Phase III.

    -

    18 -

  • 気象衛星センター 技術報告 第15号 1987年3月

    4. Phase Ill

     In Phase Ill,the analogue HR-FAX will

    no longer be disseminated through the satel-

    lite. Full disk VISSR observation for wind

    derivation around at 06Z and 18Z will start

    in the Phase m (Fig. 1II-3) instead of half

    disk observation in the Phase II. The

    stretched VISSR digital data dissemination

    will be performed for all observations on.

    4.1. VISSR observation

     The VISSR observation schedule during

    the Phase Illis a almost the same as during

    Phase l and II. The only difference is that

    full disk VISSR observation will be carried

    out at 0500, 0530,1700 and 1730Z instead of

    the half disk observation.

    4。2. Facsimile dissemination through

        satellite

     The only LR-FAX will be disseminated

    in the Phase III.

    気象衛星センター資料処理局用計算機と

       通信系地上機器の更新計画*

    気象衛星センター システム管理課

     現在気象衛星センター資料処理局(DPC)で稼働しているデータ処理用計算機システム(F230-7

    5×4台)は1987年3月に新計算機システム(富士通M360RX2台. M380SX 2台)に置換られる予

    定で準備がすすめられている。新システムでは,準定常運用として毎時観測が行なわれることになっ

    ている。

     1988年3月には,気象衛星通信所(CDAS)とDPCの通信系地上機器の更新が予定されている。こ

    の更新によって,すべての観測画像についてストレッチドVISSR(S.V.)データのリアルタイムの配

    信が行なわれるようになる。 S. V.データ配信開始の数カ月後からは,現在配信している高分解能ファ

    クシミリ(HR-FAX)の配信は行なわない。

     これらの機器の更新に伴なって,一部のプロダクトの内容の変更,機能の向上,新規プロダクトの

    作成等を予定している。これらについての詳細な報告は,本技術報告その他気象衛星センターの出版

    物として印刷されるものと考えられるが,今回は速報として次の3章に分けて簡単な報告を行なう。

     第1章 気象衛星センター資料処理局の新計算機システムとプロダクト

     第2章 地上通信機器の更新計画

     第3章 VISSR観測とファクシミリ配信スケジュール

    * 本稿の執筆は,(第1章)長谷川秀行,大島隆,浜田忠昭,(第2章)鈴木孝雄,上田真也(第3

     章)浜田忠昭,長谷川秀行による。全体を浜田忠昭がまとめた。

    - 19 -

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