Judul: Pengembangan Modul Pelaporan Harga Komoditas Pertanian pada Aplikasi Portal harga untuk Masyarakat menggunakan REST API
Abstrak: Harga komoditas pertanian di beberapa pasar di Indonesia sering mengalami perubahan dari waktu ke waktu. Kelangkaan komoditas pertanian sering terjadi akibat kesenjangan antara penawaran dan permintaan di pasar. Keterlambatan penyampaian informasi hasil panen, khususnya saat panen raya dari petani ke pemerintah merupakan salah satu faktor pemicu kenaikan harga dan kelangkaan komoditas pertanian. Kehadiran tengkulak juga menyebabkan ketidakstabilan harga di pasar dan membawa kerugian bagi petani dan masyarakat. Hasil panen petani dibayar dengan harga sangat murah sedangkan harga di pasar meningkat sehingga masyarakat mendapatkan harga yang mahal. Penelitian ini berupa pengembangan aplikasi web tentang harga komoditas pertanian yang ada di pasar, yaitu beras, daging merah, cabai, kedelai, dan bawang merah menggunakan representational state transfer (REST) application programming interface (API) dengan metode agile extreme programming (XP). Penelitian ini berhasil mengembangkan aplikasi web berbasis REST API. Penelitian ini dapat memfasilitasi masyarakat dalam mengetahui harga komoditas, menambahkan informasi harga komoditas, dan meminta pemerintah melaksanakan operasi pasar untuk mencapai kestabilan harga komoditas pertanian.
Keyword: agile XP, harga, kesenjangan, komoditas pertanian

Judul: Pengembangan Modul Pelaporan harga Komoditas Pertanian pada Sisi Pengguna Admin dan Pemerintah Menggunakan Rest Api
Abstrak: Keterlambatan penyampaian informasi terkait hasil pertanian di suatu wilayah disebabkan oleh kurangnya komunikasi dua arah antara petani dengan pemerintah. Keterlambatan ini juga berimbas pada masyarakat yang kurang mendapatkan informasi terkait harga komoditas pertanian. Kehadiran tengkulak dalam distribusi komoditas pertanian mengakibatkan petani mengalami kerugian karena hasil panen dibayar dengan harga yang sangat rendah. Masyarakat pun sulit mencari harga murah karena harga yang ada di pasaran menjadi sangat mahal. Penelitian ini berupa pengembangan aplikasi pelaporan harga komoditas pertanian pada sisi pengguna admin dan pemerintah berbasis web menggunakan representational state transfer (REST) application programming interface (API) dengan metode extreme programming. Penelitian ini berhasil mengembangkan REST API dan aplikasi web yang memudahkan pemerintah dalam mengawasi dan mengontrol distribusi produk-produk hasil pertanian dari petani ke pasar, serta dapat mempercepat alur informasi harga komoditas pertanian dari pasar ke pemerintah.
Keyword: harga komoditas, pertanian, REST API

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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