Judul: Aplikasi Front End Berbasis Mobile untuk SIGMA FMIPA IPB
Abstrak: Institut Pertanian Bogor (IPB) mempunyai area yang luas dan aset yang dimiliki sangat banyak. Aset IPB yang dikelola oleh Direktorat Pengembangan dan Prasarana (Sarpras). IPB telah mempunyai Sistem Informasi Geografis Manajemen Aset (SIGMA) berbasis Web. Sistem tersebut dapat digunakan untuk menambah, mengubah, menghapus, dan mencari aset. Untuk mempermudah pengguna berinteraksi dengan SIGMA, pada penelitian ini dikembangkan modul front end berbasis mobile dengan platform Android yang dapat melakukan fungsi positioning dan manipulasi data aset. Pengujian yang dilakukan pada penelitian ini menggunakan metode black box dan usability testing. Pengujian metode usability testing dengan kuesioner mendapatkan nilai rata-rata 93.42%.
Keyword: front end, Institut Pertanian Bogor, sistem informasi geografis, android, aset

Judul: Pengembangan Sistem Informasi Geografis Manajemen Aset (SIGMA) Berbasis Web di FMIPA Institut Pertanian Bogor
Abstrak: Management infrastructure is under the authority and responsibility of the Directorate of Infrastructure and Facilities Development in Bogor Agricultural University (IPB). Management of assets data has been an obstacle in the manipulation of existing assets data. In addition, the large campus area also makes the location of assets difficult to identify. This research aims to develop a Webbased Geographic Information Systems for Asset Management (SIGMA) at Faculty of Mathematics and Natural Sciences IPB. The system is able to perform a search of the asset location and manipulate assets data. The information system was developed using Web Development Life Cycle (WDLC) method. SIGMA was developed using OpenGeo Suite software
Keyword: Bogor Agricultural University (IPB), WDLC., Geographic Information Systems for Asset Management, OpenGeo Suite

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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