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Abstrak :
Keamanan dan keselamatan adalah sesuatu yang sangat penting dalam kehidupan manusia dan panting dalam mendorong pembangunan suatu bangsa, baik secara sosial-ekonomi; peningkatan produksi pangan; mengurangi akibat dari bencana alam; keselamatan operasi transportasi laut, udara dan darat; perlindungan alam dan lingkungan, maka informasi meteorologi dan geofisika adalah merupakan informasi yang paling mendasar yang digunakan baik secara nasional, regional maupun global. Badan Meteorologi dan Geofisika-BMG, adalah lembaga pemerintah non departemen (LPND) yang bertanggungjawab terhadap proses monitor dan pencatatan data hasil observasi meteorologi dan geofisika di Indonesia selama 24 jam sehari 7 hari seminggu, serta mempersiapkan informasi meteorologi dan geofisika yang diperlukan sesuai untuk kepentingan dan keperluan pemakainya.

Melihat pada kinerja operasi Badan Meteorologi dan Geofisika saat ini, maka diperlukan upaya-upaya perbaikan. Upaya peningkatan kinerja maupun perbaikan dapat dilakukan, setelah sebelumnya dilakukan langkah-langkah sesuai dengan manajemen strategis, yaitu melalui : analisa dan evaluasi strategis terhadap jaringan komunikasi data meteorologi dan geofisika yang digunakan untuk pengumpulan data observasi dari stasiun pengamatan dan distribusi pelayanan informasinya kepada masyarakat melalui pusat-pusat pelayanan informasi nasional. Peningkatan kinerja ini secara khusus akan dilihat pula dari aspek cost benefit.

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Security and safety are something important in human life and important in pushing national development, either through sosio-economic aspect; improvement of food production; reduction effect of natural disaster; safety operation for sea, land and air transportation; environmental and natural protection, therefore meteorological and geophysical information represent the basic information which used by national, regional and global community. Badan Meteorologi dan Geofisika-BMG, is a non department government agency (LPND) which is responsible to do the monitoring process and keeping of the data result of meteorological and geophysical observation in Indonesia during 24 hours a day and 7 days a week, and also provide the meteorological and geophysical information for the customers.

Look at the operation and performance of Badan Meteorologi dan Geofisika at this time, so it needed evaluation efforts. The performance improvement and repairs efforts can be conducted, after previously the strategic management has been done, that is : conduct the strategic analysis and evaluation to identify problems of meteorological and geophysical data communication network. This data communication network will be used to collect the observation data from basic station and to distribute the information to the public via public services station. Improvement of the performance primarily will be seen from benefitial cost aspect.

Abstrak :
Rice fields located in Citarum Hilir watershed of Karawang district are more and more affected by growth of residential and industrial areas. This resulted in the need to have supporting rice fields elsewhere including in the upstream region. ln Citarum Hulu watershed, 19,5% fiom the existing rice fields is non-irrigated with 32,l9% of population work in the agriculture sector. But productivity of' non-irrigated rice fields of Citanim Hulu watershed is still low, which is below 25 kwintal/ha. One of the efforts to increase its productivity is to look at the local climate model. The low productivity may also be caused by factors such as slope and altitude, which are used as variables in Wilayah Tanah Usaha (WTU). Sandy (1985) wrote that growth and death of any plant in Indonesia depend on water. Awarding to Chang (1968) every process in a plant is affected by water. Furthermore, FAO believed that the growth requirement of a rice plant is also depended on water availability. Mohr, Schimdt-Ferguson, and Oldeman made climate classifications based on rainfall in relation with plant needs of irrigation. Spatial climate model and planting time/season are important factors in management of non-irrigated rice fields in Citarum Hulu watershed. These rice fields are nou-unifonnly found in the center down to the south. Rice production varies from 22 to 4l kw/ha where the majority produces 30-40 kw/ha. Productivity model for the northem part is varied, and to the south is more stable with productivity of 30-40 kw/ha. The annual average rainfall in Citarum Hulu watershed is 1770-3458 mm/yr where the majority of the region has in the range of 2000-3000 mm/yr. Maximum monthly rainfall is 558 mm and a minimum of 6 mm on average. Rainfall is high in the months of November to April and dry period is fiom June to August. Mol-rr?s climate classification is around class III - Vb where the majority is in class III-IV. Schmidt-Ferguson?s climate classification for this area is type C to type A, where the majority is in the wet type (A). 0Ideman?s climate classification varies from D3 to Bl where the majority ofthe region is in climate group C-B (humid-wet). ln general, climate model for Citarum Hulu watershed is as follows: in the center (around the city of Bandung) is almost always drier than its surrounding areas, specifically in the northem and southem parts that are mountainous. The distribution of non-irrigated rice fields has a strong correlation with the annual rainfall model of Schimdt-Ferguson and Oldeman, because as an area has more precipitation there tend to be non-irrigated rice fields. But it is not true with Mohr climate. A strong correlation in productivity of non-irrigated rice fields with rainfall model, Mohr, Schmidt-Ferguson, and Oldeman climate models mean that as a region receives more precipitation then 'there is a tendency of higher rice productivity. But there is also a tendency that if an area is extremely wet, the productivity will decrease. Planting season in the Citarum Hulu watershed is from October and May with 4 planting time models: October/February, October/March, November/March, and December/April. In the November/March, planting time is dominant in almost all of the watershed area. Part of the non-irrigated rice fields in Citarum Hulu watershed are still according to the WTU conception, that is 65,87%, which the majority is in the center. As for the rest of this region, they should be converted into protected forest areas (especially in the south) and hard plant agriculture (in the cast). Keywords: DAS Citarum Hulu, non-irrigated rice fields, rainfall, climate model, Mohr, Schmidt-Ferguson, Oldeman, WTU conception, planting time.

Abstrak :
ABSTRAK
Penelitian ini dilakukan untuk mempelajari karakteristik dan variabilitas angin yang membangkitkan gelombang laut di perairan selat Karimata dan laut Jawa. Data yang digunakan adalah arah dan kecepatan angin ketinggian 10 meter pengamatan tiap 6 jam tahun 2005 ? 2010. Berdasarkan hasil analisis menunjukkan bahwa arah dan kecepatan angin dominan saat musim barat di selat Karimata dari baratlaut ? utara, kecepatan angin antara 5 ? 10 knots, puncak gelombang tertinggi antara 4 ? 5 meter. Sedangkan di laut Jawa, angin dominan dari barat ? baratlaut, kecepatan berkisar antara 10 ? 15 knots dengan puncak gelombang tertinggi mencapai 3,5 ? 4 meter, puncak tertinggi terjadi di bulan Desember ? Januari dan terendah bulan April. Saat musim angin timur di selat Karimata, angin dominan dari tenggara ? selatan, di laut Jawa dominan dari timur ? tenggara, kecepatan angin di kedua wilayah ini antara 10 ? 15 knots. Puncak gelombang tinggi di musim ini terjadi bulan Juli ? Agustus dengan gelombang tertinggi mencapai 2,5 ? 3 meter dan puncak terendah terjadi bulan Nopember. Frekuensi tinggi gelombang  2 meter 20 ? 30% di laut Jawa bagian timur dan selat Karimata bagian utara terjadi bulan Januari.

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Abstract
This study was conducted to study the characteristics and variability of wind generating waves in the ocean waters of the Karimata strait and Java sea. The data utilized here are the 10 meters direction and wind speed observation height in every 6 hours in 2005 to 2010. The analysis results indicate that the dominant wind direction and speed during the wind west season in the Karimata strait is from northwest ? north, with the wind speed ranged between 50 ? 10 knots, the highest peak of the wave is between 4 ? 5 meters. While in Java Sea, the dominant winds is from the west ? northwest, with the velocity ranged between 10 ? 15 knots and the highest wave peaks reaching 3.5 to 4 meters, the highest peak occurred on December-January and the lowest was on April. As the east wind season in the east Karimata strait , the dominant winds is from the southeast ? south, in the Java Sea the dominant winds is from east ? southeast, the wind speed in the second region between 10 ? 15 knots. The wave height peak of the season occurs in July ? August with the highest wave reached 2.5 ? 3 meters and the lowest peak occurred in November. High-frequency waves  2 meters 20 ? 30% in eastern Java Sea and the northern part of the Karimata strait occurred in January.