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All Journal BIOTROPIA - The Southeast Asian Journal of Tropical Biology AL KAUNIYAH Jurnal Pendidikan Indonesia BERITA BIOLOGI Naturalistic : Jurnal Kajian dan Penelitian Pendidikan dan Pembelajaran Syntax Literate: Jurnal Ilmiah Indonesia JURNAL PENDIDIKAN TAMBUSAI Jurnal Basicedu Jurnal Review Pendidikan dan Pengajaran (JRPP) JURNAL TEKNIK HIDRAULIK JURNAL SUMBER DAYA AIR Jurnal Agrotropika Jurnal Ilmiah Dozen Globalindo ADINDAMAS: Jurnal Pengabdian Kepada Masyarakat Makara Journal of Science Jurnal Basicedu Innovative: Journal Of Social Science Research Transforma: Jurnal Manajemen Juni-Jurnal Pelita Nusa Harmony : Jurnal Pembelajaran IPS dan PKN
Yadi Suryadi
Balai Besar Penelitian dan Pengembangan Bioteknologi dan Sumberdaya Genetik Pertanian, Jl. Tentara Pelajar No. 3A, Bogor 16111 Telp. (0251) 8337975
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Pemodelan Hidrodinamika Aliran dan Transportasi Sedimen pada Ruas Pertemuan Sungai Citarum Hilir dan Cibeet, Jawa Barat Suryadi, Yadi; Siregar, Ruth Helena; Harlan, Dhemi; Samskerta, I Putu
JURNAL TEKNIK HIDRAULIK Vol 15, No 1 (2024): Jurnal Teknik Hidraulik
Publisher : Direktorat Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jth.v15i1.727

Abstract

Flooding and changes in riverbed morphology often become issues near river confluences, as observed at the confluence of Citarum Hilir and Cibeet Rivers. This study aims to analyze the cross-sectional capacity and riverbed changes around the confluence of Citarum Hilir and Cibeet Rivers. This study utilizes 1D numerical modeling MIKE 11 with Hydrodynamic and Sediment Transport Modules. The hydrodynamic modeling inputs are river network and cross-sectional profiles. Hydrographs with return periods of 2, 5, 10, and 25 years are used as upstream boundaries, and a discharge curve is used as the downstream boundary of the model. The model is calibrated using water surface elevation measurements taken from September 13-16, 2021. The hydrodynamic modeling results indicate that Citarum Hilir and Cibeet Rivers cannot convey flood discharges with a 2-year return period. The sediment transport modeling results show no significant changes in the riverbed of Citarum Hilir before the confluence, but degradation of approximately 0.38 – 0.46 meters occurs after the confluence. Degradation happens in zones of maximum velocity where flow turbulence and shear stress increase, causing erosion of the Citarum Hilir riverbed. Degradation also occurs near the Cibeet River confluence due to flow acceleration at the outer bend of the river. Flooding and sediment transport are natural factors that can alter the morphology of river confluences, such as the confluence of Citarum Hilir and Cibeet Rivers.Keywords:  Citarum river, Cibeet river, river confluence, hydrodinamic modeling, sedimen transport modeling 
RAPID IDENTIFICATION OF CLIMATE CHANGE IMPACTS ON THE WEST TARUM CHANNEL Dahlia, Lia; Suryadi, Yadi; Nugroho, Eka; Chaidar, Ana Nurganah; Hatmoko, Waluyo
Jurnal Review Pendidikan dan Pengajaran Vol. 7 No. 4 (2024): Vol. 7 No. 4 Tahun 2024
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jrpp.v7i4.32997

Abstract

There is no doubt that El Niño and La Niña phenomena, which are characterized by sea surface temperature (SST) anomalies in the equatorial Pacific Ocean, have significant impacts on global and regional climate. The Oceanic Niño Index (ONI), obtained from NOAA satellite imagery, is used to measure these SST anomalies. El Niño is characterized by an increase in sea surface temperature of more than 0.5°C above normal, while La Niña is characterized by a decrease in sea surface temperature of more than 0.5°C below normal. The strength of the anomaly determines whether the phenomenon is weak, moderate, strong, or very strong. El Niño and La Niña events cause various hydrometeorological disasters that directly impact rainfall and water availability. The Indonesian Maritime Continent, located between oceans, is particularly vulnerable to the impacts of these two phenomena. El Niño causes drought, while a positive ONI increases the intensity of rainfall. These phenomena have the potential to reduce rainfall, disrupt water supply, and exacerbate droughts by changing global weather patterns. This study will identify the impacts of El Niño events on rainfall and water availability in the West Tarum Canal, which covers Karawang, Bekasi, and parts of Jakarta. By understanding these impacts, we can develop effective adaptation strategies. A literature review will provide a comprehensive picture of rainfall and water availability in the era of climate change by analyzing data from previous studies.
DEVELOPMENT OF ANTIBODY TO RALSTONIA SOLANACEARUM AND ITS APPLICATION FOR DETECTION OF BACTERIAL WILT SURYADI, YADI
BIOTROPIA Vol. 16 No. 2 (2009): BIOTROPIA Vol. 16 No. 2 December 2009
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2341.736 KB) | DOI: 10.11598/btb.2009.16.2.58

Abstract

The serological assay for  the detection of  bacterial wilt caused by Ralstonia  solanacearum  RSwas able to provide  information regarding the presence of  the pathogen  in plant materials Theresearch is was aimed to develop polyclonal antibody PAb for RS detection Bacterial wholecells of  RS isolates mixed with glutaraldehyde were used to immunize New Zealand femalewhite  rabbit The  titre of  antibody  in culture supernatant was 1 1024 The PAb developed  froma ground nut RS  isolates reacted with  infected plant samples from various  locations It was ableto detect RS antigen of  crude extract and pure cultures from tomato and potato plant samples45 using dot blot ELISA however the minimum detectable concentration of  RS antigen was 10cellsml The PAb obtained in this study is sensitive enough to detect RS isolates in routineserological assayKey words  Bacterial wilt Ralstonia  solanacearum antibody dot blot ELISA
PENGARUH KEBERADAAN BENDUNGAN LEUWIKERIS DAN BENDUNGAN MATENGGENG TERHADAP ALOKASI AIR DAERAH ALIRAN SUNGAI (DAS) CITANDUY Alaniri, Yusanuari; Suryadi, Yadi
JURNAL SUMBER DAYA AIR Vol 19, No 2 (2023)
Publisher : Direktorat Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jsda.v19i2.857

Abstract

 The Citanduy watershed service area, which is located in Cilacap Regency, Ciamis Regency, Pangandaran Regency and Banjar City, is currently experiencing an increase in population growth, residential facilities, and the number of immigrants, so that the demand for raw water in these areas is increasing. On the other hand, the availability of water in the area is decreasing, so it is necessary to study potential sources of raw water to determine the solutions to be taken in order to meet the demand for raw water supply and develop potential water resources in the study area. The purpose of this study is to simulate water allocation using the WEAP (Water Evaluation And Planning) software in the Citanduy watershed area. In the data analysis section, two water balance simulation scenarios were created based on the various suggestions to be recommended for developing the potential of water resources in the study area. From the two scenarios that were implemented, a recommendation emerged to build a new irrigation area of 18.800 ha, the Leuwikeris Reservoir with a volume of 69,56 million m3 and the Matenggeng Reservoir with a volume of 500 million m3. With the plan to meet these water needs, it is necessary to conduct a feasibility study of water allocation in order to find out how technically feasible both the Citanduy River and the Leuwikeris Dam are in meeting the water needs as previously planned. Given the strategic location of West Java and Central Java Provinces and the many irrigation areas located within them, the need for and demand for water services will continue to increase over time.Keywords : simulation of water allocation, Citanduy watershed, Leuwikeris reservoir, Matenggeng reservoir. 
Co-Authors Achmad Putri, Noviani Adang Hambali, Adang Aisyah Nur Sayidatun Nisa, Aisyah Nur Al-Amin, Al-Amin Alaniri, Yusanuari Amalia, Wuliani Ani Hendriani, Ani AZMIA, SEILA Azmia, Sila Azmiyah, Mia Budi Hendrawan Chaidar, Ana Nurganah Daradjat, Aan Andang Deisye Supit Dhemi Harlan, Dhemi Diding Nurdin, Diding Dwi N Susilowati DWI NINGSIH SUSILOWATI Fadlila, Nazli Amni Fathin, Muhammad Faris Fatimah Fauziah, Nurrul Hasna Fuadah, Nayla Layinatul Ginanjar, Asep Hasan Basri Hidayah, Mudrikah Nurul Himmatul Ulya I Made Samudera, I Made I Made Samudra Ifa Manzila Iim Siti Karimah, Iim Siti Kadir, Triny Suryani Kosasih, Jajang LAKSMI AMBARSARI Lia Dahlia, Lia Lukki Lukitawati Machmud, M Nani Radiastuti Ni Luh Yulyana Dewi Nirmalasari, Cyntia Nirmalasari, Cyntia Nugroho, Eka PUJI LESTARI Radini Sinta, Radini Rismawati, Eri Rismayani Rita Hayati Rohimah , Elis Rosidah, Ros Saepudin, Ahmad Sally Badriya Hisniati Samskerta, I Putu Siregar, Ruth Helena Sodik, Muhammad Sri Rahayuningsih Suhendar, MA Supriadi Suryani Suryani Tri Puji Priyatno Trini Suryani Kadir Triny S. Kadir Trisnawati Trisnawati WAHID, RAHMAN Waluyo Hatmoko, Waluyo Wartono Wartono