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Minggu, 02 November 2008

STASIUN METEOROLOGI MARITIM

KEDUDUKAN DAN TUGAS

Organisasi Stasiun Meteorologi Maritim ditetapkan dengan Keputusan Kepala Badan Meteorologi dan Geofisika Nomor : KEP 005 Tahun 2004 tanggal 5 Oktober 2004

Stasiun Meteorologi Maritim mempunyai tugas melaksanakan pengamatan, pengumpulan dan penyebaran data, pengolahan, analisis dan prakiraan didalam wilayahnya serta pelayanan jasa meteorologI

Selaku Port Meteorological Office (PMO) juga melakukan tugas :

  • Pemeriksaan peralatan pengamatan meteorologi atas dasar permintaan nakhoda kapal serta memberikan beberapa petunjuk dan saran dalam masalah kecuacaan
  • Memelihara kontak dengan petugas pengamat cuaca di kapal serta melakukan pemeriksaan/ inspeksi peralatan pengamat cuaca yang terdapat di kapal
  • Memelihara hubungan baik dengan para pemilik kapal maupun agen kapal, dari berbagai kebangsaan, dengan tujuan mengadakan kerjasama dengan kapal ataupun dalam rangka lebih menggiatkan pengamatan cuaca di laut.


 

JUMLAH STASIUN

Stasiun Meteorologi Maritim ada 10 (sepuluh) :

1. Stasiun Meteorologi Maritim Belawan

2. Stasiun Meteorologi Maritim Teluk Bayur

3. Stasiun Meteorologi Maritim Panjang Lampung

4. Stasiun Meteorologi Maritim Tanjung Priok

5. Stasiun Meteorologi Maritim Semarang

6. Stasiun Meteorologi Maritim Surabaya

7. Stasiun Meteorologi Maritim Pontianak

8. Stasiun Meteorologi Maritim Paotere Makassar

9. Stasiun Meteorologi Maritim Kendari

10. Stasiun Meteorologi Maritim Bitung

KEGIATAN STASIUN

OBSERVASI

Pengamatan konvensional

Pengamatan Automatic (AWS)

Komunikasi : Pengumpulan/ penyebaran data, informasi cuaca dan gelombang melalui Computer Message Switching System (CMSS), Internet, Faximile, Telepon

Peralatan teknis : memelihara/ memperbaiki peralatan , pengecekan peralatan meteo di kapal dan di Stasiun.


 

DATA DAN INFORMASI

Pengolahan Data : Klimat, Data dari alat AWS, Ploting data synop dan pibal.

Akses data satelit via internet

Analisa Peta Synoptic

Membuat Prakiraan Cuaca dan Gelombang

Pelayanan Jasa Meteorologi

PORT METEOROLOGICAL OFFICE (PMO)

Kunjungan ke kapal-kapal

Ikut serta berlayar (Family Voyage)

PRODUK JASA METEOROLOGI MARITIM

Data Klimatologi

Data hasil pengamatan AWS

Weather Bulletin for Shipping

Informasi Cuaca Pelayaran

Prakiraan Cuaca dan Gelombang di Pelabuhan

Analisis/ Prakiraan Gelombang, Arus laut, Upweling mengunakan program Windwaves-05

DAFTAR ALAMAT, TELEPON, TELEFAC DAN EMAIL

NO.

KANTOR

TELEPON

TELEFAX

E' MAIL

ALAMAT KANTOR

1

STAMET MARITIM TANJUNG PRIOK

021 43901650,

021 4351366

021 43930339

martpk04@yahoo.com

mar_tpk@jakarta.wasantara.net.id

Jln. Padamarang no. 4A Pelabuhan Tanjung Priok , Jakarta Utara 14310

2

STAMET MARITIM BELAWAN

061 6840340

061 6841851

stamar_blw@hotmail.com

Jln. Raya Pelabuhan III Gabion Ringkai Begawan-Medan

3

STAMET MARITIM TELUK BAYUR

0751 62331

0751 62331

meteomaritim_tlbayur@yahoo.co.id

Jln. Cilacap No. 31A Padang 25217

4

STAMET MARITIM PANJANG LAMPUNG

0721 342219

0721 257711

stamarpjg@yahoo.com

Jln. Djawa No. 12 Pelabuhan Panjang Bandar Lampung

5

STAMET MARITIM SEMARANG

024 3559194

024 3549050

sta_mar2@hotmail.com

Jln. Deli no. 3 Pelabuhan Emas Semarang

6

STAMET MARITIM PONTIANAK

0561 769906

0561 769906

tejomaritim06@yahoo.com

Jln. Pelabuhan Dwikora (komplek pelabuhan laut) Pontianak

7

STAMET MARITIM SURABAYA

031 3291439

031 3291439

meteomaritmsby@yahoo.co.id

Jln. Kalimas Baru 97B Perak Surabaya

8

STAMET MARITIM MAKASSAR

0411 319242

0411 328235

meteo_marptr@yahoo.co.id

Jln. Sabutung I no. 30 Paotere Makassar

9

STAMET MARITIM BITUNG

0438 21710

0438 21710

stamarbitung@yahoo.com

Jln. Candi no. 56 Kaduodan Bitung

10

STAMET MARITIM KENDARI

0401 328528

0401 328528

stamarkdi@plasa.com

Jln. Jenderal Sudiramn no. 158 Kendari 93127

11

STA METEOROLOGI CILACAP

0282 534103

0282 534103

yoyoid2002@yahoo.com

Jln. Gatot Subroto no. 20 Cilacap

12

STA METEOROLOGI BIAK

0981 21284

0981 22824

dukuncuaca@yahoo.co.id

Jln. Prof. Moch Yamin Biak

13

STA METEOROLOGI KUPANG

0380 881613

0380 882097

met_kupang@yahoo.com

Jln. Rajawali Penturi Kupang


 

Ocean wave

Ocean surface waves are the result of forces acting on the ocean. The predominant natural forces are pressure or stress from the atmosphere (especially through the winds), earthquakes, gravity of the Earth and celestial bodies (the Moon and Sun), the Coriolis force (due to the Earth's rotation) and surface tension. The characteristics of the waves depend on the controlling forces. Tidal waves are generated by the response to gravity of the Moon and Sun and are rather large-scale waves. Capillary waves, at the other end of the scale, are dominated by surface tension in the water. Where the Earth's gravity and the buoyancy of the water are the major determining factors we have the so-called gravity waves.

Waves may be characterized by their period. This is the time taken by successive wave crests to pass a fixed point. The type and scale of forces acting to create the wave are usually reflected in the period. Figure 1.1 illustrates such a classification of waves.

On large scales, the ordinary tides are ever present but predictable. Less predictable are tsunamis (generated by earthquakes or land movements), which can be catastrophic, and storm surges. The latter are associated with the movement of synoptic or meso-scale atmospheric features and may cause coastal flooding.

Wind-generated gravity waves are almost always present at sea. These waves are generated by winds somewhere on the ocean, be it locally or thousands of kilometres away. They affect a wide range of activities such as shipping, fishing, recreation, coastal and offshore industry, coastal management (defences) and pollution control. They are also very important in the climate processes as they play a large role in exchanges of heat, energy, gases and particles between the oceans and atmosphere. It is these waves which will be our subject in this Guide.

To analyse and predict such waves we need to have a model for them, that is we need to have a theory for how they behave. If we observe the ocean surface we note that the waves often form a rather complex pattern. To begin we will seek a simple starting model, which is consistent with the known dynamics of the ocean surface, and from this we will derive a more complete picture of the wind waves we observe.

The model of the ocean which we use to develop this picture is based on a few quite simple assumptions: • The incompressibility of the water. This means that the density is constant and hence we can derive a continuity equation for the fluid, expressing the conservation of fluid within a small cell of water (called a water particle); • The inviscid nature of the water. This means that the only forces acting on a water particle are gravity and pressure (which acts perpendicular to the surface of the water particle). Friction is ignored; • The fluid flow is irrotational. This means that the individual particles do not rotate. They may move around each other, but there is no twisting action. This allows us to relate the motions of neighbouring particles by defining a scalar quantity, called the velocity potential, for the fluid. The fluid velocity is determined from spatial variations of this quantity.

From these assumptions some equations may be written describe the motion of the fluid