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Journal : JURNAL TEKNOLOGI LINGKUNGAN

APLIKASI METODE CURVE NUMBER UNTUK MEMPRESENTASIKAN HUBUNGAN CURAH HUJAN DAN ALIRAN PERMUKAAN DI DAS CILIWUNG HULU – JAWA BARAT Tikno, Sunu; Hariyanto, Teguh; Anwar, Nadjadji; Karsidi, Asep; Aldrian, Edvin
Jurnal Teknologi Lingkungan Vol. 13 No. 1 (2012)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1149.735 KB) | DOI: 10.29122/jtl.v13i1.1402

Abstract

Aliran permukaan/limpasan (run off) merupakan salah satu variabel hidrologi yang sangat penting di dalam menunjang kegiatan pengembangan sumber daya air. Metode prediksi yang handal untuk menghitung jumlah dan laju limpasan yang berasal dari permukaan tanah dan bergerak menuju sungai di suatu DAS yang tidak dilengkapi alat ukur (ungaged watershed) adalah suatu pekerjaan yang sangat sulit dan memerlukanwaktu yang banyak. Penelitian ini dilakukan di DAS Ciliwung Hulu, yang merupakan daerah penting dalam kotribusi banjir di Jakarta. Untuk mengetahaui run off  yang terjadi, digunakan data curah hujan dan debit Tahun 2007-2009. Sebagai model, untuk mengetahui run off menggunakan peta penggunaan lahan, peta jenis tanah, dan topografi. Peta-peta tersebut diolah dengan menggunakan Arcview, sehingga didapatkannilai CN. Berdasarkan analisis perhitungan, besarnya debit mendekati 50% dari tebal hujan. Kondisi ini mengindikasikan bahwa kondisi DAS Ciliwung Hulu sudah tidak mampu lagi menyerap curah hujan dengan baik. Korelasi antara hasil prediksi run off model yang menggunakan CN dengan perhitungan run off observasi cukup baik. Hal ini menunjukkan bahwa metode Curve Number cukup dapat mepresentaskan hubungancurah hujan dengan aliran permukaan (run off). kata kunci : Run off observasi, run off model, curve number AbstractRun off (surface flow) is one of the most important hydrological variable in supporting the activities of water resources development. A reliable prediction method to calculate the amount and rate of runoff from the land surface caused by the rain that falls in a watershed that is not equipped with measuring devices (un gauge watershed) is a verydifficult job and requires a lot of time. The research was conducted in the watershed Ciliwung Hulu, which is an important area in relation to the incidence of flooding in Jakarta. Curve Number (CN) method can be used to predict the amount of runoff from a watershed. This model required input of rainfall; land cover maps; soil type maps,and topography. The maps are processed using Arc View software, so we get the value of CN. In this study, we used of rainfall and discharge data 2007-2009. Based on the analysis of calculation, known that amount of surface flow approaching 50% of rainfall depth. This condition indicates that the Ciliwung Hulu watershed conditions were not ableand proper to absorb of rainfall. The correlation between the results of run-off prediction models using CN with run-off observation was quite good. This indicated that the Curve Number method could be able to represent the relationship of rainfall with surface flow (run off) and also to predict runoff key words: Run off observation, run-off model, curve number
PREDIKSI PARAMETER-PARAMETER BIOFISIK TANAMAN PADI DARI DATA GROunDSPECTROmETER DAN HYPERSPECTRAL PESAWAT TERBANG DENGAN MENGGUNAKAN TEKNIK PARTIAL LEAST SquARE REGRESSIOn (PLSR) DAN nORmALIzED DIFFEREnCE SPECTRAL InDEx (NDSI) Darmawan, Arief; Hariyanto, Teguh; Sukojo, Bangun Muijo; Sadly, Muhamad
Jurnal Teknologi Lingkungan Vol. 12 No. 1 (2011)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (391.434 KB) | DOI: 10.29122/jtl.v12i1.1266

Abstract

Paddy rice canopy hyperspectral was measured by using ground-based spectroradiometer and HyMap sensor onboard an airplane from 350 nm up to 2500 nm in the same timethat covered various growth stages. Coinciding with hyperspectral measurement, biophysical parameters such as leaf area index (LAI), SPAD value were measured onground during the airplane passed over area of interest (AOI). Rice yield was measured at the time of final harvesting by random selected yield (ubinan method) for each sampling area. In finding the best correlation among canopy hyperspectral reflectance with crop development, optimal individual waveband explored with involving all possible waveband combinations to obtain the best fitted two-pair waveband related to crop biophysical parameters. Normalized Difference Spectral Index (NDSI) was appliedfrom spectral transformations (obtained from optimal waveband selected by exploring all possible waveband) to improve sensitivity analysis on plant. Canopy hyperspectralprovided information about plant, soil and water background when plant canopy don’t completely cover soil surface yet. The present study was directed to examine spectralindices and establish the relationships between biophysical parameters of rice by using partial least square regression (PLSR) technique. 
Co-Authors Achmad Frandik Achmad Frandik, Achmad Adelia Grafitasari Aditya Nugraha ADITYA NUGRAHA Agung Budi Cahyono Ahmad Yani Akbar Kurniawan Akbar Kurniawan Akbari , Aulia Mustika Al Amin, Rizkulloh Nurfauzi Alhadir Lingga Amriana, Yessherly Amriana, Yessherly Anak Agung Sagung Ratih Prameswari Andie Setiyoko Anindito, Raka Anindito, Raka Anindityo Budi Suryo Anindityo Budi Suryo, Anindityo Budi Anita Dwijayanti Anita Dwijayanti, Anita Anwar, Nadjadji Arief Darmawan Arief Yusuf Effendi Arifin, Bambang Samsul Artama , Putu Asep Karsidi, Asep Assalam, Sunan Hanif Ihsan Atik Indra Puspita Atsilah, Inas Safitri Aulia Mustika Akbari Badriya Hisniati, Sally Badrudin Bagas Tri Widodo Bagas Tri Widodo Bambang Ismanto Bangun Muljosukojo Bayu Angkusprana Saktia Bayu Angkusprana Saktia, Bayu Angkusprana Beta Rohana Budisusanto, Yanto Cahyono, Amru Estu Cheri Bhekti Pribadi Cherie Bekti Pribadi Cherie Bhekti Pribadi, Cherie Bhekti Chomia Nilam Safitri Darminto , Mohammad Rohmaneo Dena Prapanca Wardhani Dewi Nur Indah Sari Dewi Nur Indah Sari, Dewi Nur Indah Dewi, Maura Sahara Dimas Ricky Pratama Dimas Ricky Pratama, Dimas Ricky Dwi Ramadhani DWI RAMADHANI Edvin Aldrian Ekaprathama, Sri Aditya Elon Fadilah Setiawan Elon Fadilah Setiawan, Elon Fadilah Elya, Herfina Evri, M Fahmi, Dede Ropi Farrel Narendra Robawa Fasya, Nizar Muhammad Fauzano Nikomaru Fendra Dwi Ramadhan Filsa Bioresita Filsa Bioresita, Filsa Fitria Rahma Frida Sidik Frida Sidik, Frida Gaina , Pretty Angelia Haidar Rizqi Krisananda Hana Sugiastu Firdaus, Hana Sugiastu Handayani , Hepi Hapsari Handayani, Hapsari Hariyanto, Irena Hana Harmasdiyono, Rino Hartatiati, Sri Suprapti Helmy Mukti Wijaya Hendayani , Hendayani Hendayani Hendayani Hepi Hapsari Handayani Hepi Hapsari Handayani Hepi Hapsari Handayani, Hepi Hapsari Herfina Elya Hery Setiawan Purnawali Hidayat, Husnul Hidayat, Vlado Yusyanda Hidayatul Ummah, Nida Ihsan Pakaya Ihsan Pakaya Inas Safitri Atsilah Ipah Latipah Jardini, Agdya Rifananda Jerry, Dennis Khomsin Khomsin Khomsin Khomsin Khomsin, Khomsin Kosim, Rijal Muhamad Krisananda, Haidar Rizqi Kukuh Prakoso Sudarsono Kukuh Prakoso Sudarsono Kurniawan , Akbar Kurniawan, Akbar Kusumah, Rifqi Rabbani Laksono Trisnantoro Latri Wartika Latri Wartika, Latri Luki Indeswari Maila Zumita Maulida, Putra Maulyna Sri Agustia Maura Sahara Dewi Miftahurrahman, Miftahurrahman Mohamad Erihadiana, Mohamad Mohammad Rohmaneo Darminto Mohammad Rohmaneo Darminto Muammar Muzayyin Ramadlon Muammar Muzayyin Ramadlon, Muammar Muzayyin muhamad sadly Muhammad, Rio Mukhtar, Mutia Kamalia mulyono, Sidik Mutia Kamalia Mukhtar Nadirah, Nadirah Nadjadji Anwar Nadya Rizky Dahlia Nadya Rizky Dahlia, Nadya Rizky Napisah, Nina Nisak, Nur Septylia Choirotun Noorlaila Hayati, Noorlaila Nur Septylia Choirotun Nisak Nurin Hidayati Nurjaman, Irman Nurwatik , Nurwatik Nurwatik Nurwatik Nusantara, Candida Aulia De Silva Permata Prasindya Prameswari , Anak Agung Sagung Ratih Prasindya, Permata Pratomo, Danar Guruh Pratomo, Danar Guruh Pretty Angelia Gaina Pribadi , Wisnu Pribadi, Cheri Bhekti Pribadi, Cherie Bhekti Puissant, Anne Puspita, Atik Indra Putu Artama Ramadhan, Alfi Syahril Ramadhan, Fendra Dwi Ramadhani, Alita Tri Utami Rina Fitryana Rina Fitryana, Rina Rino Harmasdiyono Rio Muhammad Robawa, Farrel Narendra Rochman, Asep Saepul Ropi Fahmi, Dede Rozaqi, Muhammad Abduh Sadly, M Safitri, Chomia Nilam Sarmuji Sarmuji Sarmuji, Sarmuji Setiaji, Wahyu Soleh Setiawati , Danar Linsa Solihin, Dadin Sri Aditya Ekaprathama Sri Utami Sri Utami Srimulyarini, Yenny Sudarsono, Kukuh Prakoso Sukojo, Bangun Muijo Sunu Tikno, Sunu Syaiful Budianto Syaiful Budianto Syariz, Muhammad Aldila Tamlekha, Tamlekha Trismono C. Krisna Ummah, Muftiyyatul Vera Ramandany Wahyu Soleh Setiaji Wahyudi Wahyudi Wahyudi Wahyudi Wardhani, Dena Prapanca Widodo, Bagas Tri Wijaya, Helmy Mukti Wisnu Pribadi Yanto Budisusanto, Yanto Yuwono Zahra Rahma Larasati Zakiyah, Qiqi Yuliati Zumita, Maila