Judul: Peningkatan fungsional pangkalan pendaratan ikan (PPI) Labuan kabupaten Pandeglang
Abstrak: Fungsionalisasi pangkalan pendaratan ikan (PPI) dapat dilakukan melalui peningkatan aktivitas (produksi, pengolahan dan distribusi hasil perikanan) termasuk segala sarana dan prasarananya.
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Judul: Tingkat Pelaksanaan Fungsi Pangkalan Pendaratan Ikan Muara Batu Kabupaten Aceh Utara
Abstrak: Peningkatan fungsi pangkalan pendaratan ikan (PPI) dapat dilakukan melalui pengembangan aktivitas (produksi, pengolahan, dan distribusi hasil perikanan) termasuk segala sarana dan prasarananya. PPI Muara Batu merupakan salah satu PPI di Kabupaten Aceh Utara yang memiliki sumberdaya dan prospek cukup baik karena memiliki jumlah nelayan 885 jiwa, jumlah armada penangkapan ikan 303 unit, dan jumlah alat tangkap ikan 527 unit terbanyak dibandingkan dengan PPI lainnya. Penelitian ini menggunakan metode kasus. Aspek yang diteliti yaitu aspek fasilitas dan aktivitas pangkalan pendaratan ikan yang menunjang fungsi pelabuhan perikanan. Analisis dilakukan secara deskriptif melalui penyajian tabel dan grafik untuk mengetahui perkembangan unit penangkapan dan jumlah produksi serta nilai produksi hasil tangkapan, deskripsi fasilitas dan aktivitas yang terdapat di PPI Muara Batu, dan penentuan alternatif tindakan melalui Analitic Hierarchy Process (AHP). Fungsi pelabuhan perikanan yang optimal merupakan salah satu tolak ukur keberhasilan dari pembangunan perikanan tangkap. Berjalanya fungsi pelabuhan perikanan sangat dipengaruhi oleh keberadaan berbagai fasilitas dan juga berkaitan erat dengan kelancaran aktivitas pelabuhan. Kondisi beberapa fasilitas pelabuhan memerlukan perhatian seperti alur pelayaran, kolam pelabuhan, pabrik es, SPDN, air bersih, dan jalan di sekitar PPI Muara Batu.
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Judul: Thermal Characteristics and Dynamics of Tropical Cyclone over Western North Pacific Ocean: A Case Study of Typhoon Songda (Chedeng) 2011
Abstrak: The frequent occasion of Tropical Cyclone (TC) over Western North Pacific (WNP) Ocean lies from 10˚N to 26˚N and 121˚E to 170˚E. Sources of TC development come from warm ocean temperature where latent heat is released during condensation processes and subsequently concentrated in the boundary layer. Relative humidity at 850-700 hPa is responsible to produce the most intense storm. Meanwhile, weak vertical wind shear between 850-200 hPa is one of the dynamical factors that lead to the development of TC. Pressure level of 850-200 hPa is chosen to minimize the thermodynamic effect in the lower troposphere. Typhoon Songda (Chedeng in the Philippines) or TSC lasted from May 18th to 30th, 2011 and strengthened into powerful Super Typhoon stage between May 24th and 27th. Long curving track and the exhibition of all sequences of TC life cycle, TSC is then considered as an ideal case of TC. The objective of the study with case of TSC is to investigate the role of thermal characteristics and dynamics on TC intensity. The research is carried out by using Advanced Research of Weather Research and Forecasting model (WRF ARW model) version 3.3. Two domains are employed in the model. The first domain situate from 02˚N to 40˚N and 118˚E to 149˚E and cover spatial resolution () of 33.1 km. The second domain situate from 09˚N to 27˚N and 119˚E to 132˚E with of 11 km. Timestep of the model () is 120 seconds. The model is supported by the following physical parameterization, i.e., Yonsei University Scheme (YSU) in the boundary layer, Kain-Fritsch scheme (KF) in the cumulus, and WRF Single-Moment 3-class scheme in the microphysics. Initial meteorological condition prior to the formation of the cyclone is generated using WRF ARW standard-release model. Sensitivity of the model output is obtained from a selected single-parameter change scenarios, namely, 10 % to 20 % decrease and increase of wind shear initial data at 850-200 hPa, and by 10 % to 20 % decrease of relative humidity initial data at 850-700 hPa. The result showed that the negative correlations between wind shear and intensity are found in wind shear scenarios. Wind shears of 10 ms-1 which lead to strengthening of the wind intensity in the early period of Typhoon development are found in wind shear scenarios. The effect of wind shear changes on wind intensity is statistically significant in the 20 % wind shear scenarios. During mature stage, weak wind intensity occurred when wind shear increase as given in the WRF standard-release and the 20 % decreasing scenario. Different situation is found in the 20 % increasing scenario where wind shear tend to weak and lead to strong wind intensity at this stage. Meanwhile, the reduction of moisture supply at 850-700 hPa resulting from 20 % decreasing relative humidity play a major role in the weakening of wind intensity and reduces mechanical energy of the cycle process as much as 300 J kg-1.
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