MALE DORIS site description form


0. Form

    Prepared by   : SIMB (DORIS installation and maintenance department)
    Date prepared : 01/02/2012
    Report type   : UPDATE


1. Site location information

    Site name              : MALE
    Site DOMES number      : 22901
    Host agency            : Department of Meteorology
    City                   : Male Airport
    State or province      : Hulhule island
    Country                : MALDIVES
    Tectonic plate         : INDI
    Geological information : 

    Geographical coordinates (ITRF) : 
        North Latitude       :     4 deg 11' 34''
        East Longitude       :    73 deg 31' 40''
        Ellipsoid height     :   -92 m
        Approximate altitude :     5 m


2. DORIS antenna and reference point information

2.1
    Four character ID        : MALB
    Antenna model            : Starec 52291 type 
    Antenna serial number    : 113
    IERS DOMES number        : 22901S002
    CNES/IGN number          : 229011
    DORIS SSALTO number      : 248
    Date installed (dd/mm/yy): 15/01/2005
    Date removed (dd/mm/yy)  : 
    Antenna support type     : 30 cm sided very rigid metal tower, 2 m high
    Installed on             : Reinforced concrete block, 0.9 m sided,1 m deep
    Height above ground mark : 2.371 m
    Ground mark type         : Steel bolt, 23 mm diameter
    Ground mark DOMES number : 22901M002
    Notes                    : 


3. DORIS beacons information

3.1
    Beacon serial number        : 2819045
    Beacon model                : 3.0
    USO serial number           : 3.211
    4 Char. ID of the REF point : MALB
    Date installed (dd/mm/yy)   : 13/01/2005
    Date removed (dd/mm/yy)     : 23/05/2010

3.2
    Beacon serial number        : 2819048
    Beacon model                : 3.0
    USO serial number           : 3.400
    4 Char. ID of the REF point : MALB
    Date installed (dd/mm/yy)   : 23/05/2010
    Date removed (dd/mm/yy)     : 


4. ITRF coordinates and velocities of the current DORIS ref. point (MALB)

    Solution         : ITRF2008 
    Epoch            : 2005.0 

    X = 1803683.187 m    Y = 6100015.216 m    Z = 463192.935 m
    Sig X = 0.004 m    Sig Y = 0.003 m    Sig Z = 0.002 m

    VX = -0.0425 m/y    VY = 0.0148 m/y    VZ = 0.0385 m/y
    Sig VX = 0.0020 m/y    Sig VY = 0.0015 m/y    Sig VZ = 0.0010 m/y


5. IERS colocation information

5.1
    Instrument type       : GNSS
    Status                : Permanent
    DOMES number of the
    instrument ref. point : 22901S002
    Notes                 : IGS station MALD


6. Tide Gauge colocation information

6.1
    Name         : Male
    Location     : Male airport
    GLOSS number : 28
    Distance     : 477 m
    Notes        : 


7. Local site ties

7.1
    Point description      : IGS station (MALD)
    DOMES number           : 22901S002
    Differential components from the current DORIS ref. point (MALB)
    to the above point (in the ITRS) :
    dX (m)                 : 174.769
    dY (m)                 : -17.386
    dZ (m)                 : -443.234
    Accuracy (m)           : 0.002
    Date measured          : 15/01/2005
    Additional information : Survey by IGN-F

7.2
    Point description      : Mark under DORIS antenna (MALB)
    DOMES number           : 22901M002
    Differential components from the current DORIS ref. point (MALB)
    to the above point (in the ITRS) :
    dX (m)                 : -0.671
    dY (m)                 : -2.267
    dZ (m)                 : -0.173
    Accuracy (m)           : 0.001
    Date measured          : 15/01/2005
    Additional information : Survey by IGN-F 2005


8. Meteorological Instrumentation

8.1 Humidity sensor
    Model        : HMP45D
    Manufacturer : VAISALA
    Accuracy     : +/- 3 percents
    Notes        : 

8.2 Pressure sensor
    Model        : PTU200 class B
    Manufacturer : VAISALA
    Accuracy     : +/- 0.25 hPa
    Height       : 0.9 m below the current DORIS ref. point (MALB)
    Notes        : long term stability = +/- 0.1 hPa/year

8.3 Temperature sensor
    Model        : HMP45D
    Manufacturer : VAISALA
    Accuracy     : +/- 0.5 deg C
    Notes        : 


9. DORIS network contacts

    Primary contact:

    Name            : Jerome SAUNIER
    Agency          : Institut Geographique National
    Mailing address : Service de Geodesie et de Nivellement
                    : 73 avenue de PARIS
                    : 94165 SAINT-MANDE CEDEX    FRANCE
    Telephone       : + 33 1 43 98 83 63
    Fax             : + 33 1 43 98 84 50
    E-mail          : jerome (.) saunier (@) ign.fr

    Secondary contact:

    Name            : Francois BOLDO
    Agency          : Institut Geographique National
    Mailing address : CNES (DCT/ME/OT)
                    : 18 Avenue Edouard BELIN
                    : 31401 TOULOUSE Cedex    FRANCE
    Telephone       : + 33 5 61 27 40 72
    Fax             : + 33 5 61 28 25 95
    E-mail          : Simb (.) Doris (@) cnes.fr