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All Journal MAJALAH ILMIAH GLOBE Spektra: Jurnal Fisika dan Aplikasinya Jurnal Meteorologi Klimatologi dan Geofisika International Journal of Remote Sensing and Earth Sciences (IJReSES) TAJDID BUSTANUL FUQAHA: Jurnal Bidang Hukum Islam Jurnal Suara Pengabdian 45 Jurnal Pengabdian Masyarakat Singa Podium (JPMSIPO) Jurnal Arsitektur ARCADE
Ali, Abdullah
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Religion Aerospace Engineering Astronomy Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Social Sciences

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PREDIKSI INTENSITAS CURAH HUJAN MENGGUNAKAN PRODUK NOWCASTING RTR DIBANDINGKAN DENGAN PRODUK ESTIMASI CURAH HUJAN SRI PADA KEJADIAN BANJIR DI PALEMBANG TANGGAL 12 – 13 NOVEMBER 2018 Hidayat, Anistia M; Aofany, Diar; Arfianti, Dinda R; Nugraheni, Imma Redha; Ali, Abdullah
Jurnal Meteorologi Klimatologi dan Geofisika Vol 6 No 1 (2019): Jurnal Meteorologi Klimatologi dan Geofisika
Publisher : Unit Penelitian dan Pengabdian Masyarakat Sekolah Tinggi Meteorologi Klimatologi dan Geofisika

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1658.28 KB) | DOI: 10.36754/jmkg.v6i1.109

Abstract

Palembang merupakan salah satu wilayah rawan terdampak banjir di Indonesia. Sebanyak 24 kasus banjir terjadi selama kurun waktu 2017?2018 dan memiliki kecenderungan untuk terus meningkat sepanjang tahun terhitung sejak 1972. Merujuk pada latar belakang tersebut, penelitian ini memanfaatkan produk Rain Tracking (RTR) untuk estimasi intensitas dan distribusi spasial curah hujan secara nowcasting. Laporan sinoptik Stasiun Meteorologi Sultan Mahmud Badaruddin II Palembang menunjukkan bahwa hujan yang sangat lebat terjadi dalam rentang waktu 14.00 ? 18.00 UTC tanggal 12 November 2018. Analisis produk CAPPI dan SSA menunjukkan adanya pola sebaran awan konvektif dengan nilai reflectivity maksimum pada inti badai mencapai 58 dBZ menyebar di atas lokasi penelitian pada pukul 16.10 UTC dan dikategorikan sebagai fase matang awan badai. Berdasarkan analisis MLVCUT (dBZ), nilai reflectivity maksimum pada fase matang awan badai adalah 48 dBZ dengan tinggi puncak awan mencapai 6,15 km. Pada waktu yang sama, analisis VVP menunjukkan adanya pola updraft kuat mencapai 9,25 m/s dan downdraft yang kuat mencapai ?8,27 m/s. Hasil prediksi dengan produk Rain Tracking (RTR) menunjukkan nilai intensitas curah hujan yang cenderung lebih mendekati hasil pengukuran curah hujan sebenarnya menggunakan ARG, dengan selisih nilai absolut berkisar antara 1,24 ? 14,76 mm/jam. Sementara selisih nilai absolut intensitas curah hujan antara produk SRI dan ARG dalam periode waktu yang sama menunjukkan penyimpangan yang lebih besar, yaitu 0,92 ? 24,53 mm/jam.
RADAR-BASED STOCHASTIC PRECIPITATION NOWCASTING USING THE SHORT-TERM ENSEMBLE PREDICTION SYSTEM (STEPS) (CASE STUDY: PANGKALAN BUN WEATHER RADAR) Ali, Abdullah; Supriatna, S.; Sa'adah, Umi
International Journal of Remote Sensing and Earth Sciences (IJReSES) Vol 18, No 1 (2021)
Publisher : National Institute of Aeronautics and Space of Indonesia (LAPAN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.ijreses.2021.v18.a3527

Abstract

Nowcasting, or the short-term forecasting of precipitation, is urgently needed to support the mitigation circle in hydrometeorological disasters. Pangkalan Bun weather radar is single-polarization radar with a 200 km maximum range and which runs 10 elevation angles in 10 minutes with a 250 meters spatial resolution. There is no terrain blocking around the covered area. The Short-Term Ensemble Prediction System (STEPS) is one of many algorithms that is used to generate precipitation nowcasting, and is already in operational use. STEPS has the advantage of producing ensemble nowcasts, by which nowcast uncertainties can be statistically quantified. This research aims to apply STEPS to generate stochastic nowcasting in Pangkalan Bun weather radar and to analyze its advantages and weaknesses. Accuracy is measured by counting the possibility of detection and false alarms under the 5 dBZ threshold and plotting them in a relative operating characteristic (ROC) curve. The observed frequency and forecast probability is represented by a reliability diagram to evaluate nowcast reliability and sharpness. Qualitative analysis of the results showed that the STEPS ensemble produces smoothed reflectivity fields that cannot capture extreme values in an observed quasi-linear convective system (QLCS), but that the algorithm achieves good accuracy under the threshold used, up to 40 minutes lead time. The ROC shows a curved upper left-hand corner, and the reliability diagram is an almost perfect nowcast diagonal line.
AN ENHANCEMENT TO THE QUANTITATIVE PRECIPITATION ESTIMATION USING RADAR-GAUGE MERGING Ali, Abdullah; Deranadyan, Gumilang; Hairuly Umam, Iddam
International Journal of Remote Sensing and Earth Sciences (IJReSES) Vol 17, No 1 (2020)
Publisher : National Institute of Aeronautics and Space of Indonesia (LAPAN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.ijreses.2020.v17.a3316

Abstract

Quantitative Precipitation Estimation (QPE) is quite important information for the hydrology fields and has many advantages for many purposes. Its dense spatial and temporal resolution can be combined with the surface observation to enhance the accuracy of the estimation. This paper presents an enhancement to the QPE product from BMKG weather radar network at Surabaya by adjusting the estimation value form radar to the real data observation from rain gauge. A total of 58 rain gauge is used. The Mean Field Bias (MFB) method used to determine the correction factor through the difference between radar estimation and rain gauge observation value. The correction factor obtained at each gauge points are interpolated to the entire radar grid in a multiplicative adjustment. Radar-gauge merging results a significant improvement revealed by the decreasing of mean absolute error (MAE) about 40% and false alarm ratio (FAR) as well an increasing of possibility of detection (POD) more than 50% at any rain categories (light rain, moderate rain, heavy rain, and very heavy rain). This performance improvement is very beneficial for operational used in BMKG and other hydrological needs.
PRELIMINARY STUDY OF A RADIO FREQUENCY INTERFERENCE FILTER FOR NON-POLARIMETRIC C-BAND WEATHER RADAR IN INDONESIA (CASE STUDY: TANGERANG WEATHER RADAR) Ali, Abdullah; Umam, Iddam Hairuly; Leijnse, Hidde; Sa'adah, Umi
International Journal of Remote Sensing and Earth Sciences (IJReSES) Vol 18, No 2 (2021)
Publisher : National Institute of Aeronautics and Space of Indonesia (LAPAN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.ijreses.2021.v18.a3727

Abstract

C-Band weather radar that operates at a frequency of 5 GHz is very vulnerable to radio frequency interference (RFI) because it is located on a free used frequency. RFI can cause image misinterpretation and precipitation echo distortion. The new allocation for free spectrum recommended by the World Radio Conference 2003 and weather radar frequency protection in Indonesia controlled by the Balai Monitoring Spektrum Frekuensi (BALMON) have not provided permanent protection against weather radar RFI. Several RFI filter methods have been developed for polarimetric radars, but there have been no studies related to RFI filters on non-polarimetric radars in Indonesia. This research aims to conduct an initial study of RFI filters on such radars. Four methods were applied in the initial study. The Himawari 8 cloud mask was used to eliminate interference echo based on VS, IR, and I2 channels, while the nature of false echo interference that does not have a radial velocity value was used as the basis for the application of the Doppler velocity filter. Another characteristic in the form of consistent echo interference up to the maximum range was used as the basis for applying a beam filling analysis filter with reflectivity thresholds of 5 dBZ and 10 dBZ, with beam filling of more than 75%. Finally, supervised learning Random Forest (RF) was also used to identify interference echo based on the characteristics of the sampling results on reflectivity, radial velocity, and spectral width data. The results show that the beam filling analysis method with a threshold of 5 dBZ provides the best RFI filter without eliminating echo precipitation.
Regionalism in Design Development Contemporary Mosque Architecture in Indonesia Juwono, Sudarmawan; Rukayah, Siti; Lutfiana, Nuraini; Ali, Abdullah
TAJDID Vol 30 No 1 (2023): Islamic Studies
Publisher : Research and Development Institution, Darussalam Institute for Islamic Studies

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36667/tajdid.v30i1.1537

Abstract

The architectural designs of contemporary mosques in Indonesia show varied designs, including international modern designs or Middle Eastern-Indian-European models with geometric patterns. This condition indirectly shows that modernism or neo-modernism which is rooted in Middle Eastern culture as a cultural expression is considered to be more representative of Islamic culture than local culture. From the perspective of architectural design and cultural thinking, this is interesting to explore to find out how far regionalism is an alternative for developing Islamic architectural identity in Indonesia. The method used in the research is a qualitative approach by observing and comparing mosque architectural phenomena and exploring architectural elements. The results of the study show that regionalism can accommodate the creative development of Islamic architecture which embodies the values​​of Islamic teachings and environmental identity, the historical context of the people and the spirit of progress contained in the expression of modernity. This concept of thought is in line with al-urf's thinking which provides opportunities for local architectural elements to become part of typical Islamic culture. This design thinking is expressed in the form of post-modern architecture: (1) An architectural concept that integrates local and international cultural forms in concrete form, (2) An architectural concept that emphasizes spirited abstraction in accommodating the values​​of Islamic teachings and local culture in the aim of obtaining optimal benefits. Key words: al-urf, local culture, regionalism.
Pendampingan Inventarisasi Data Grafis Bangunan Rumah Kampung Adat Kranggan Ali, Abdullah; Juwono, Sudarmawan; Solo, Adrianus; Riansyah, Teguh Iman
Jurnal Pengabdian Masyarakat Singa Podium (JPMSIPO) Vol. 1 No. 2 (2023): April
Publisher : LPPM Universitas Bung Karno

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58965/jpmsipo.v1i2.7

Abstract

Kampong Kranggan is a traditional village in Bekasi City that still survives with the building of stilt houses and the Babaritan ceremony as a cultural ritual. Architectural resilience amidst the modernization of urban areas makes this traditional village unique and has a distinctive character. The community service carried out aims to carry out an architectural inventory of the graphic data on the building of the Kranggan traditional village house architecturally. With a sustainable mentoring model, the inventory of traditional houses is a preservation database. Community service uses a participatory method approach, which applies observation and interviews as instruments for processing and presenting data. Stages of architectural surveys, measurements, sketches, and photo documentation, by involving the owners of traditional house buildings in a participatory manner. From the results of the data collection, a focus group discussion was carried out to dig up in-depth information, and an inventory of data was carried out by digitally depicting the shape of buildings and areas. The result of this community service is the availability of graphical data for the people of the Kranggan Traditional Village and the Jatirangga Village government. The process of community service is expected to be able to encourage increased awareness, initiatives, innovation, and community participation in the preservation of cultural heritage and increase the usability of house buildings as community assets in the development of the creative economy become the basis for the Kampong Kranggan Traditional Village preservation movement and of course, can be used in regional planning in the City Bekasi.
Keandalan Bangunan Hunian Warga Terhadap Risiko Bencana di Kampung Batukasur Desa Batulayang Cisarua Bogor Juwono, Sudarmawan; Ali, Abdullah; Mulyo, Yusak Sabdono; Laia, Alesman; Purba, Leonardo Fransisco
Jurnal Pengabdian Masyarakat Singa Podium (JPMSIPO) Vol. 1 No. 2 (2023): April
Publisher : LPPM Universitas Bung Karno

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58965/jpmsipo.v1i2.13

Abstract

The reliability of a building, as regulated by law, is an indicator of its ability to provide safety for its occupants. In order to map the potential risks of residential buildings, a survey was conducted to assess the reliability of 94 residential units in the Batukasur village, Batulayang village, Cisarua district, based on building reliability criteria. This location was chosen due to its hilly geographic conditions and the fact that the houses were self-built by residents. The method used was a questionnaire, which was used by students to observe and interview residents to obtain information describing the level of building reliability. The results of the observation showed that the reliability level of the residential buildings reached 3.66, which is between poor and good. The lowest value was the accessibility level, which reached 3.48, while the highest was health, with a value of 3.88 on a scale of 1 to 5. These conditions indicate that the residential conditions are relatively good, but the low accessibility level should be noted, as it can limit mobility during the evacuation process. This condition is closely related to the level of resident participation and knowledge of disasters. Furthermore, the mapping results can be used as information for the village regarding the level of building reliability.
Pendampingan Pemetaan Kebutuhan Ruang, Peningkatan Keamanan Bangunan dan Lingkungan Panti Rehabilitasi Gangguan Jiwa di Jakarta Utara Ali, Abdullah; Juwono, Sudarmawan; Marlin, Syamsu
Jurnal Pengabdian Masyarakat Singa Podium (JPMSIPO) Vol. 1 No. 3 (2023): Oktober
Publisher : LPPM Universitas Bung Karno

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58965/jpmsipo.v1i3.19

Abstract

Community Service Activities (PkM) with partners from the Nurul Alam Paitama Foundation with Assistance in the Redesign of the Building and Environment of the Mental Disorders Rehabilitation Home in North Jakarta. This home is a form of service carried out by the community independently in the form of treatment for patients suffering from mental disorders using religious therapy methods. Currently, the home, which has an area of ​​696 m2 on 1,200 m2 of land, accommodates 27 patients who are served by 20 volunteer nurses. Existing spaces include a mosque as the main room and center for therapy activities, a secretariat room, living room and patient care area, kitchen, patient common room and other supports. The urgency of this Community Service activity, namely the need to improve the quality of buildings and the environment in the form of redesign in mentoring approaches and behavioral methods where space and facility needs are built, is dialogued with residents based on aspirations, space experiences, and also observed activities. As is known, the basic principle of mentoring itself is the empowerment of every potential that exists, both physical and non-physical. Thus, this program fully involves residents as the subject of a shared agenda. This involvement produces primary and secondary data for the need for redesign and placement of CCTV monitoring points in buildings and environments with their respective functions. The aim of PkM activities is as a form of devotional service in improving the quality of space by redesigning buildings and the environment to improve patient care and healing services, especially from the aspect of security and room comfort for residents. This condition supports conditioning and forming positive behavior for patients based on religious therapy methods so that sacredness becomes absolutely necessary.
Sense of Place dan Kepuasan Berwisata pada Arsitektur Kampung Budaya Sindang Barang Bogor Juwono, Sudarmawan; Solo, Adrianus; Ali, Abdullah; Aryanti, Dwi; Andayani, Keti; Adistira, Gagas
Jurnal Pengabdian Masyarakat Singa Podium (JPMSIPO) Vol. 2 No. 1 (2024): April
Publisher : LPPM Universitas Bung Karno

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58965/jpmsipo.v2i1.28

Abstract

Sindang Barang Bogor Cultural Kampung is a tourist destination in Bogor which focuses on Sundanese village culture. This tourist destination is managed by the local community by utilizing the existing environmental potential. This community service aims to provide input to the management of Sindang Barang Bogor Cultural Kampung, especially regarding the level of satisfaction felt by tourists. In this measurement, the concept of sense of place is used as a measure of the quality of space that can be felt by the human senses when using space. Meanwhile, tourist satisfaction is a positive response given by tourists regarding their experience with the space object. If these two concepts are connected, sense ofpPlace can be used as an approach to measuring travel satisfaction. The results of the exploration were submitted to management who responded positively as useful suggestions, creative suggestions, basic needs, evaluation materials as input in planning and evaluating the Sindang Barang Cultural Kampung.
Partisipatif Konsep Rancangan Musala Baiturrohmah Gang Haji Nawi Jatimakmur Pondok Gede Kota Bekasi Ali, Abdullah; Iswidodo, Iswidodo; Andayani, Keti; Susanto, Devit Budi; Koto, Despin Hidayat
Jurnal Pengabdian Masyarakat Singa Podium (JPMSIPO) Vol. 2 No. 1 (2024): April
Publisher : LPPM Universitas Bung Karno

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58965/jpmsipo.v2i1.30

Abstract

Musala Baiturrohmah, located in Gang Haji Nawi, Jatimakmur Village, Pondok Gede District, Bekasi City, was initially a privately owned prayer facility. Over time, it has expanded to accommodate various community activities, serving not only as a place of worship but also for educational and social functions. Recognizing the need to enhance its facilities, the owner decided to renovate the Musala to include additional functional spaces and improve the surrounding environment. To achieve this, the owner collaborated with the Architecture Study Program at the Faculty of Engineering, Karno University. This partnership involved permanent lecturers, students, and alumni in forming a Community Service Team. The team undertook stages of field exploration, surveying, studying, design transformation, and reporting. Two design alternatives were developed for the Musala building, offering options that cater to the needs of both the owner and the local community.
Co-Authors Adistira, Gagas Andayani, Keti Andi Muhammad Akmal Aofany, Diar Arfianti, Dinda R Deranadyan, Gumilang Diyah Ayu Ningsih Dwi Aryanti Engel Bertus Maray Erita Oktasari Feodora Zefanya Widjaja Hairuly Umam, Iddam Hamzah Hasan Heru Wibowo Hidayat, Anistia M Iswidodo, Iswidodo Koto, Despin Hidayat Laia, Alesman Leijnse, Hidde Lutfiana, Nuraini Mannesa, Masita Dwi Mandini Mulyo, Yusak Sabdono Nugraheni, Imma Redha Nurahman, Wildan Purba, Leonardo Fransisco R Siti Rukayah Riansyah, Teguh Iman Riser Fahdiran Sa'adah, Umi Sa’adah, Umi Solo, Adrianus Sudarmawan Juwono Supriatna, S. Susanto, Devit Budi Syamsu Marlin Umam, Iddam Hairuly