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Papers by Bambang Setyadji
Social Science Research Network, 2022
The utilization of the altimetric satellite's on-board radiometer for atmospheric observation is ... more The utilization of the altimetric satellite's on-board radiometer for atmospheric observation is demonstrated. This study uses the Wet Tropospheric Correction (WTC) data from the Topex/Jason altimetry mission series (Topex/Poseidon, Jason-1, Jason-2/OSTM, and Jason-3). The data spans nearly 30 years, making them su cient for climate study. Precipitable Water Vapor (PWV) is derived from the WTC and used to study the water vapor variability over the Tropical Indian Ocean (TIO). Standard EOF (Empirical Orthogonal Function) analysis on the derived PWV anomaly (PWVA) in the TIO generates two leading modes. The rst mode has a dipole spatial structure that explains 18.3% of the total variance, and the second one has a basin-wide homogeneous structure that explains 12.3% of the total variance. Correlation analysis with IOD and ENSO monitoring indices has shown that these two modes are associated with the two interannual variabilities. Further analyses using composite techniques are done to distinguish the different of mechanism and impact between the two. A new monitoring index is proposed here which uses the altimetry-derived PWV anomaly data. The index is computed from the difference of PWV anomaly between the dipole regions in TIO, which effectively describes the activity of the Indian Ocean Walker Circulation (IOWC). This research showcased the feasibility of using the data measured by the radiometer of altimetric satellites for atmospheric studies, a potential continuation of this research would be the use of the synchronous altimeter-radiometer measurement for more advanced analysis such as the ocean-atmosphere coupling.
The utilization of the altimetric satellite’s on-board radiometer for atmospheric observation is ... more The utilization of the altimetric satellite’s on-board radiometer for atmospheric observation is demonstrated. This study uses the Wet Tropospheric Correction (WTC) data from the Topex/Jason altimetry mission series (Topex/Poseidon, Jason-1, Jason-2/OSTM, and Jason-3). The data spans nearly 30 years, making them sufficient for climate study. Precipitable Water Vapor (PWV) is derived from the WTC and used to study the water vapor variability over the Tropical Indian Ocean (TIO). Standard EOF (Empirical Orthogonal Function) analysis on the derived PWV anomaly (PWVA) in the TIO generates two leading modes. The first mode has a dipole spatial structure that explains 18.3% of the total variance, and the second one has a basin-wide homogeneous structure that explains 12.3% of the total variance. Correlation analysis with IOD and ENSO monitoring indices has shown that these two modes are associated with the two interannual variabilities. Further analyses using composite techniques are done...
Sustainability
According to the UN (United Nations) data released in 2018, the growth in the world’s population ... more According to the UN (United Nations) data released in 2018, the growth in the world’s population in urban areas is increasing every year. This encourages changes in cities that are increasingly dynamic in infrastructure development, which has an impact on social, economic, and environmental conditions. On the other hand, this also raises the potential for new problems in urban areas. To overcome potential problems that occur in urban areas, a smart, effective, and efficient urban monitoring system is needed. One solution that can be implemented is the Smart City concept which utilizes sensor technology, IoT, and Cloud Computing to monitor and obtain data on problems that occur in cities in real time. However, installing sensors and IoT throughout the city will take a long time and be relatively expensive. Therefore, in this study, it is proposed that the Mobile Crowdsensing (MCS) method is implemented to retrieve and collect data on problems that occur in urban areas from citizen re...
... of Geodetic Engineering, Institute of Technology Bandung. KUSUMA Mipi A. Dept. of Geodetic En... more ... of Geodetic Engineering, Institute of Technology Bandung. KUSUMA Mipi A. Dept. of Geodetic Engineering, Institute of Technology Bandung. SETYADJI Bambang; Dept. of Geodetic Engineering, Institute of Technology Bandung. GAMAL M. Dept. ...
2018 IEEE Asia-Pacific Conference on Geoscience, Electronics and Remote Sensing Technology (AGERS), 2018
Cimandiri is an active fault located in the region of southern Sukabumi, West Java, that extends ... more Cimandiri is an active fault located in the region of southern Sukabumi, West Java, that extends from Pelabuhan Ratu to Padalarang. Some researches done with the aim of defining the mechanism of Cimandiri Fault result in various outcomes. INA-CORS GPS observation data around the fault was processed using scientific software, GAMIT 10.6. The processing result in daily coordinates for each GPS site in ITRF2008 that were used to calculate velocity vector and strain around Cimandiri Fault. The results for principal strain around Segment I and II are dominated by both compression and extension, with most of the direction of principal strain axes are around 40°. While for Segment III, principal strain around the fault are much more dominated by compression and the direction is around 20°. According to the principal strain rate and velocity pattern around fault, Segment I and II of Cimandiri Fault have sinistral strike-slip mechanism, while Segment III of Cimandiri Fault has thrust mechanism
AIP Conference Proceedings, 2018
Sebagian besar survei seismik dilakukan pada masa lampau sebelum era sistem koordinat yang bersif... more Sebagian besar survei seismik dilakukan pada masa lampau sebelum era sistem koordinat yang bersifat global. Akibatnya seringkali dijumpai data yang sistem koordinatnya tidak jelas dan masih terdefinisi pada datum yang berbeda-beda. Oleh karena itu dibutuhkan pemahaman mengenai sistem koordinat agar terhindar dari kesalahpahaman koordinat pada lokasi survei. Penelitian ini ditujukan untuk melihat permasalahan ketidakseragaman sistem koordinat yang seringkali terjadi di dunia migas. Metode penelitian ini didasarkan pada selisih koordinat sebelum dan sesudah transformasi. Dengan menggunakan parameter transformasi Defence Mapping Agency (DMA) Amerika Serikat, diperoleh perbedaan koordinat mencapai 25 m dan 472 m. Ketidakseragaman sistem koordinat tidak hanya menyebabkan kesalahan di permukaan Bumi, tapi juga kesalahan pada penampang lapisan-lapisan tanah di bawah permukaan Bumi.
Kyoto University (京都大学)0048新制・課程博士博士(理学)甲第7669号理博第2054号新制||理||1093(附属図書館)UT51-99-G263京都大学大学院理学研究科... more Kyoto University (京都大学)0048新制・課程博士博士(理学)甲第7669号理博第2054号新制||理||1093(附属図書館)UT51-99-G263京都大学大学院理学研究科地球惑星科学専攻(主査)教授 田中 寅夫, 教授 竹本 修三, 助教授 福田 洋一学位規則第4条第1項該
Social Science Research Network, 2022
The utilization of the altimetric satellite's on-board radiometer for atmospheric observation is ... more The utilization of the altimetric satellite's on-board radiometer for atmospheric observation is demonstrated. This study uses the Wet Tropospheric Correction (WTC) data from the Topex/Jason altimetry mission series (Topex/Poseidon, Jason-1, Jason-2/OSTM, and Jason-3). The data spans nearly 30 years, making them su cient for climate study. Precipitable Water Vapor (PWV) is derived from the WTC and used to study the water vapor variability over the Tropical Indian Ocean (TIO). Standard EOF (Empirical Orthogonal Function) analysis on the derived PWV anomaly (PWVA) in the TIO generates two leading modes. The rst mode has a dipole spatial structure that explains 18.3% of the total variance, and the second one has a basin-wide homogeneous structure that explains 12.3% of the total variance. Correlation analysis with IOD and ENSO monitoring indices has shown that these two modes are associated with the two interannual variabilities. Further analyses using composite techniques are done to distinguish the different of mechanism and impact between the two. A new monitoring index is proposed here which uses the altimetry-derived PWV anomaly data. The index is computed from the difference of PWV anomaly between the dipole regions in TIO, which effectively describes the activity of the Indian Ocean Walker Circulation (IOWC). This research showcased the feasibility of using the data measured by the radiometer of altimetric satellites for atmospheric studies, a potential continuation of this research would be the use of the synchronous altimeter-radiometer measurement for more advanced analysis such as the ocean-atmosphere coupling.
The utilization of the altimetric satellite’s on-board radiometer for atmospheric observation is ... more The utilization of the altimetric satellite’s on-board radiometer for atmospheric observation is demonstrated. This study uses the Wet Tropospheric Correction (WTC) data from the Topex/Jason altimetry mission series (Topex/Poseidon, Jason-1, Jason-2/OSTM, and Jason-3). The data spans nearly 30 years, making them sufficient for climate study. Precipitable Water Vapor (PWV) is derived from the WTC and used to study the water vapor variability over the Tropical Indian Ocean (TIO). Standard EOF (Empirical Orthogonal Function) analysis on the derived PWV anomaly (PWVA) in the TIO generates two leading modes. The first mode has a dipole spatial structure that explains 18.3% of the total variance, and the second one has a basin-wide homogeneous structure that explains 12.3% of the total variance. Correlation analysis with IOD and ENSO monitoring indices has shown that these two modes are associated with the two interannual variabilities. Further analyses using composite techniques are done...
Sustainability
According to the UN (United Nations) data released in 2018, the growth in the world’s population ... more According to the UN (United Nations) data released in 2018, the growth in the world’s population in urban areas is increasing every year. This encourages changes in cities that are increasingly dynamic in infrastructure development, which has an impact on social, economic, and environmental conditions. On the other hand, this also raises the potential for new problems in urban areas. To overcome potential problems that occur in urban areas, a smart, effective, and efficient urban monitoring system is needed. One solution that can be implemented is the Smart City concept which utilizes sensor technology, IoT, and Cloud Computing to monitor and obtain data on problems that occur in cities in real time. However, installing sensors and IoT throughout the city will take a long time and be relatively expensive. Therefore, in this study, it is proposed that the Mobile Crowdsensing (MCS) method is implemented to retrieve and collect data on problems that occur in urban areas from citizen re...
... of Geodetic Engineering, Institute of Technology Bandung. KUSUMA Mipi A. Dept. of Geodetic En... more ... of Geodetic Engineering, Institute of Technology Bandung. KUSUMA Mipi A. Dept. of Geodetic Engineering, Institute of Technology Bandung. SETYADJI Bambang; Dept. of Geodetic Engineering, Institute of Technology Bandung. GAMAL M. Dept. ...
2018 IEEE Asia-Pacific Conference on Geoscience, Electronics and Remote Sensing Technology (AGERS), 2018
Cimandiri is an active fault located in the region of southern Sukabumi, West Java, that extends ... more Cimandiri is an active fault located in the region of southern Sukabumi, West Java, that extends from Pelabuhan Ratu to Padalarang. Some researches done with the aim of defining the mechanism of Cimandiri Fault result in various outcomes. INA-CORS GPS observation data around the fault was processed using scientific software, GAMIT 10.6. The processing result in daily coordinates for each GPS site in ITRF2008 that were used to calculate velocity vector and strain around Cimandiri Fault. The results for principal strain around Segment I and II are dominated by both compression and extension, with most of the direction of principal strain axes are around 40°. While for Segment III, principal strain around the fault are much more dominated by compression and the direction is around 20°. According to the principal strain rate and velocity pattern around fault, Segment I and II of Cimandiri Fault have sinistral strike-slip mechanism, while Segment III of Cimandiri Fault has thrust mechanism
AIP Conference Proceedings, 2018
Sebagian besar survei seismik dilakukan pada masa lampau sebelum era sistem koordinat yang bersif... more Sebagian besar survei seismik dilakukan pada masa lampau sebelum era sistem koordinat yang bersifat global. Akibatnya seringkali dijumpai data yang sistem koordinatnya tidak jelas dan masih terdefinisi pada datum yang berbeda-beda. Oleh karena itu dibutuhkan pemahaman mengenai sistem koordinat agar terhindar dari kesalahpahaman koordinat pada lokasi survei. Penelitian ini ditujukan untuk melihat permasalahan ketidakseragaman sistem koordinat yang seringkali terjadi di dunia migas. Metode penelitian ini didasarkan pada selisih koordinat sebelum dan sesudah transformasi. Dengan menggunakan parameter transformasi Defence Mapping Agency (DMA) Amerika Serikat, diperoleh perbedaan koordinat mencapai 25 m dan 472 m. Ketidakseragaman sistem koordinat tidak hanya menyebabkan kesalahan di permukaan Bumi, tapi juga kesalahan pada penampang lapisan-lapisan tanah di bawah permukaan Bumi.
Kyoto University (京都大学)0048新制・課程博士博士(理学)甲第7669号理博第2054号新制||理||1093(附属図書館)UT51-99-G263京都大学大学院理学研究科... more Kyoto University (京都大学)0048新制・課程博士博士(理学)甲第7669号理博第2054号新制||理||1093(附属図書館)UT51-99-G263京都大学大学院理学研究科地球惑星科学専攻(主査)教授 田中 寅夫, 教授 竹本 修三, 助教授 福田 洋一学位規則第4条第1項該