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All Journal Jurnal Spektran Paduraksa : Jurnal Teknik Sipil Universitas Warmadewa JTSL (Jurnal Tanah dan Sumberdaya Lahan) Jurnal Sains Teknologi dan Lingkungan (JSTL) Jurnal Penelitian Pendidikan IPA (JPPIPA) SIKLUS: Jurnal Teknik Sipil GANEC SWARA Jurnal Abdi Insani Spektrum Sipil SADE Jurnal Arsitektur, Planologi dan Teknik Sipil Journal of Science and Science Education (JoSSEd) JURNAL KARYA PENGABDIAN TEKNIK MESIN Jurnal Pepadu

Humairo Saidah

Dosen Jurusan Teknik Sipil Universitas Mataram

Author-ID : 2631381

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Model Runtut waktu untuk Peramalan Indeks Kekeringan Daerah Lombok Utara Humairo Saidah; I Wayan Yasa; Muh. Bagus Budianto; Syamsul Hidayat; I.D.G Jayanegara
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 5 No. 2 (2019): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

PDSI is the drought index method which has good accuracy to be applied in Lombok Island. However, this method is only able to hindcast the drought without any procedure to predict the drought index in the future. So, this model aims to recognize the characteristics of drought in North Lombok for early mitigation and anticipating drought disasters purposes in this region. The results obtained from this study are that the drought pattern in North Lombok has the SARIMA model of (0,1,2) (0,1,1)12. The drought in North Lombok mainly occurs between May-October with an increasing of drought index tends for over last 20 years.

Kalibrasi Persamaan Thornthwaite Dan Evaporasi Panci Untuk Memprediksi Evapotranspirasi Potensial Pada Daerah Dengan Data Cuaca Terbatas Humairo Saidah; Heri Sulistyono; Muh. Bagus Budianto
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 6 No. 1 (2020): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Determination of irrigation channel dimensions is determined by the number of consumptive use values that are empirically determined by the potential evapotranspiration value (ETo). Due to the limited lysimeter measurement data, the ETo value is usually approached by an empirical method using weather data input. The recognized standard method for its reliability and can be used universally in determining ETo values is the FAO Penman-Monteith method. However, the use of this method is only possible if complete weather data is available. This study modified the simplest ETo calculation method, the Thornthwaite method and the evaporation pan method to obtain ETo values as accurate as FAO PM resulted. Callibrations are made by finding the correction number to get the best results shown by the high of correlation number and the efficiency index value. The results obtained are for the area with limited weather data condition, the Thornthwaite method both before and after calibration has better accuracy than the evaporation pan method. While the calibration carried out successfully increased the correlation number and efficiency index of both methods significantly. The results of the two calibrated methods, the Thornthwaite method provides better and satisfactory performance with a ratio between 0.86 and 0.89 and the efficiency index reaches 0.78.

Karakteristik Infiltrasi dan Potensi Irigasi di Lahan Kering Kecamatan Bayan Kabupaten Lombok Utara I Dewa Gede Jaya Negara; Lilik Hanifah; Humairoh Saidah; Saiful Anwar
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 7 No. 1 (2021): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v7i1.239

Agricultural development with horticultural crops on dry land is one of the government's efforts to increase dry land productivity so that new paddy fields are created in the Bayan area. Noting that land infiltration capability and its classification are important factors needed in irrigation planning to support the development of horticultural agriculture, so it is necessary to conduct field research on this matter. This study aims to determine the characteristics and classification of land infiltration and determine the trend of irrigation that can be applied. Field infiltration tests were carried out in Anyar and Sukadana villages with 4 test points each. The infiltration rate test in the field was carried out using a double ring infiltrometer and a soil test at the Geotechnical Laboratory, Faculty of Engineering, Unram. Analysis of the data used Horton's formula as a comparison and the results of the analysis were presented in the form of tables and graphs, conclusions were made descriptively. The results showed that the average infiltration rate in Anyar Village was at point 1 = 26.90 cm/hour, point 2 = 14.94 cm/hour, point 3 = 27.33 cm/hour, and point 4 = 8.21 cm/hour with soil including sandy clay. Infiltration rate classification of points 1 and 3 is very fast, point 2 is fast and location 4 is rather fast. For Sukadana Village the infiltration rate was obtained at point 1 = 43.52 cm/hour, point 2 = 36.67 cm/hour, point 3 = 12.86 cm/hour, and point 4 = 10.97 cm/hour, with the condition sandy clay soil. Sukadana's infiltration rate classification points 1 and 2 are very fast and points 3 and 4 are rather fast. Based on the results of the infiltration test, for very fast and fast infiltration, it is potential to apply jet irrigation such as sprinklers or perforations and for rather fast infiltration, drip irrigation can be applied with limited drip system

Koreksi Bias Data Hujan Luaran GCM ECHAM5 Untuk Prediksi Curah Hujan Bulanan dan Musiman Pulau Lombok: Bias Correction for GCM ECHAM5 Model Rainfall Data Output in Estimating Monthly and Seasonally Rainfall for Lombok Island Humairo Saidah; Agustono Setiawan; Lilik Hanifah; Eko Pradjoko; Agus Suroso
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 7 No. 2 (2021): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v7i2.289

This study aims to evaluate the ability of the ECHAM5 GCM model output data in estimating monthly rainfall on the island of Lombok. The data used in this study are ECHAM5 monthly rainfall data and automatic rainfall recorder (ARR) measurement rain data for 2000-2018 obtained from ARR Gunung Sari. Correction of bias is conducted by using the mean ratio method and the regression method. The method that produces the best approach is then used to obtain rain data projections and a simple regression method. Evaluation and validation used the Pearson correlation coefficient (r), Root Mean Square Error (RMSE) and Nash-Sutcliffe Efficiency (NSE) values. The results obtained are that the daily and monthly rainfall data from the ECHAM5 model cannot be directly used to replace the rain measurement data because of its very low accuracy. The downscaling technique performed on daily and monthly rainfall data using the average ratio method does not show satisfactory performance where the efficiency figures produced are still low even gave a slight increasing number. However, the ECHAM5 model data can be used to obtain rainfall projections on a monthly and seasonal scale with a good and satisfactory correlation. Key words: mean ratio method; global climate model; ECHAM5; monthly rainfall.

KESERAGAMAN DAN PANCARAN IRIGASI PIPA PERFORASI PADA BERBAGAI KEMIRINGAN PIPA TRANSMISI I Dewa Gede Jaya Negara; Humairo Saidah; I Wayan Yasa; Adhitya Halim .P
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa Vol. 10 No. 1 (2021)
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

The potential of hilly dry land needs to be developed for limited land farming to have an equal distribution of food security in various potential areas. Many existing drylands, especially in hilly and sloping areas, have not been managed optimally for agriculture due to limited support for practical irrigation techniques. Utilizing differences in existing land elevation is a potential that can be exploited by irrigation techniques that require water pressure. The perforated pipe system irrigation technique has similarities to the mini sprinkler system because it uses water pressure, and it is very possible to be applied to sloped land conditions, but the ability of the perforation system needs to be known further so that it can be used for practical irrigation. For this reason, it is necessary to test the perforated irrigation system with certain variations of the slope of the beam range and uniformity, so that later it can be used as an initial reference. The test model uses a water source from a tendon as high as 3.7 m and with a tank capacity of ± 200 liters. The diameter of the transmission pipe is ½ inch with a length of 2.55 meters, and the lateral pipe as a perforation pipe with a 3mm hole consists of 3 pipes with a pipe length of 4 meters with a diameter of 1/2 inch and the distance between the holes of the perforation pipe is 60 cm. The test was carried out on 4 variations of the slope of 10º, 20º, 30º, and 40º with 4 variations of head 1 = 2.855 m, head 2 = 2.35 m, head 3 = 1.85 m, and head 4 = 1.30 m. Based on the research results, it shows that the greater the slope of the transmission pipe, the higher the head will be. The uniformity of the perforation irrigation was getting smaller the larger the slope with a minimum value of 85% and the highest being 91%. A large perforation beam is obtained at transmission slopes of 20º and 30º, namely 2.66 m and 2.40 m.

ANALISA INDEKS DAN SEBARAN KEKERINGAN MENGGUNAKAN METODE STANDARDIZED PRECIPITATION INDEX (SPI) DAN GEOGRAPHICAL INFORMATION SYSTEM (GIS) UNTUK PULAU LOMBOK Humairo Saidah; M Bagus Budianto; Lilik Hanifah
JURNAL SPEKTRAN Vol 5 No 2 (2017): Vol. 5, No. 2, Juli 2017
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (613.365 KB)

Since rainfall and surface water availability is limited, Lombok island has high risk drought. Drought causes poverty due to its close corellation to desease spread and lack of food. So it needs to recognize drought characteristic for early anticipation and adaptation. Standardized Precipitation Index is the method to be used to determine rainfall deviation from its normal depth. SPI was chosen because of its simplicity and ability to count the index of drought and figure its grade. Data for this analyses was taken from 1996-2015 of rainfall station entire Lombok Island, then the result figured out in a drought map using Arc GIS. The result of this study shows that the severest drought for annually deficit period indexed -3.25 was happened at Lingkuk Lime on 2002, then for 6 monthly deficit period indexed -4.97 happened at Sekotong on July-December 2000, afterwards for 3 monthly deficit period indexed -4.72 happened at Loang Make on Pebruary-April 2002, later for monthly deficit period indexed -4.99 happened at Jurang Sate on January 2015. Keywords: drought index, deficit period, SPI, Arc GIS.

Evaluasi Penentuan Kawasan Lindung Kota Mataram dalam Perannya Sebagai Kawasan Peresapan Air Humairo Saidah; Bambang Hariyanto; Anid Supriyadi; I Dewa Gede Jaya Negara
SADE : Jurnal Arsitektur, Planologi dan Teknik Sipil Vol 1 No 1 (2021): SADE April 2021
Publisher : Program Studi Arsitektur Fakultas Teknik Universitas Mataram

Kawasan lindung kota adalah Kawasan yang berfungsi melindungi kelestarian lingkungan hidup dan sumber daya di dalamnya. Pemerintah Kota Mataram telah menetapkan tiga kelurahan yakni Selagalas, Pagutan Timur dan Sayang-sayang sebagai kawasan lindung Kota Mataram. Penelitian ini melakukan pengujian terhadap kemampuan resapan ketiga kawasan lindung tersebut untuk mengukur kinerja ketiganya dalam menjaga tata air sekaligus mencegah kerusakan lingkungan akibat peristiwa alam di wilayah Kota Mataram. Penelitian dilakukan dengan mengukur kemampuan penyerapan air (infiltrasi) di ketiga kelurahan tersebut menggunakan double ring infiltrometer serta menguji sifat fisik tanah di laboratorium. Hasil yang diperoleh adalah bahwa kapasitas infiltrasi kelurahan Selagalas, Pagutan Timur dan sayang-sayang berturut-turut adalah 2.8cm/jam, 2.2cm/jam dan 1.8 cm/jam, dengan jenis tanah yang hampir sama yaitu lempung berpasir. Berdasarkan angka laju resapan menunjukkan bahwa laju penyerapan Pagutan Timur dan Selagalas masuk kategori sedang dan Sayang sayang berkategori sedang lambat. Dengan curah hujan rerata harian antara 12-43 mm/hari, maka potensi penyerapan air rerata dari ketiga lokasi adalah 124.936 m3/tahun untuk Kelurahan Pagutan Timur, Kelurahan Selagalas 284.963 m3/tahun dan Sayang sayang 165.311 m3/tahun. Namun angka potensi ini masih memerlukan penyesuaian mengingat ketiga kelurahan tersebut sudah banyak beralih fungsi menjadi pemukiman

ANALISIS BESAR KOEFISIEN GESEKAN DAN ANGKA REYNOLDS TERHADAP VARIASI KEMIRINGAN PIPA TRANSMISI JARINGAN IRIGASI TETES PVC DRIPLINE I D G JAYA NEGARA; HUMAIRO SAIDAH; FITRAH RIZAL DWIASMORO; ANID SUPRIYADI; LILIK HANIFAH
GANEC SWARA Vol 15, No 2 (2021): September 2021
Publisher : Universitas Mahasaraswati K. Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v15i2.218

Farming with drip irrigation systems on sloping dry land is very rarely found at the field level, so that many dry lands are rarely used by the community. To be able to support the application of drip irrigation on sloping land, it is necessary to test the effect of slope variations on the flow characteristics of the drip irrigation system. This study aims to determine the effect of variations in the slope of the transmission pipe, which describes the slope of the land, on the Reynolds number (Re) and the pipe friction coefficient (f) generated in the drip irrigation network. The test drip irrigation network was made of 4 PVC pipes with a distance of 80 cm between the pipes, the drip hole distance of 60 cm and a diameter of 0.5 mm. The test variations are the slope of the transmission pipe 10 °, 20 °, 30 °, 40 ° and the water depth above the outlet tower h1 = 20cm, h2 = 30cm and h3 = 40cm with various head heights. Research using a water source from a tower with a capacity of ± 200 liters with a height of 3.3 m, a transmission line of PVC pipe Ø1 / 2 inches long 3.35 m.The results showed that the Re value will be greater from drip pipe 1 to drip pipe 4. The range of Re values from 1 to pipe 4 is 195 to 992 which is classified as laminar. The amount of friction coefficient f obtained decreases from drip pipe 1 to drip pipe 4, with a value of 0.327 to 0.064.

ANALISIS KEBUTUHAN AIR TANAMAN DENGAN METODE CAOLI PADA TANAMAN TOMAT DENGAN IRIGASI TETES DI LAHAN KERING LOMBOK UTARA I DEWA GEDE JAYA NEGARA; M. BAGUS BUDIANTO; ANID SUPRIYADI; HUMAIRO SAIDAH
GANEC SWARA Vol 14, No 1 (2020): Maret 2020
Publisher : Universitas Mahasaraswati Mataram

Tomato farming in the dry land of Salut Village, North Lombok is very often done by farmers, because the plants are short-lived and the selling price of the harvest is quite stable. However, the development of tomato plants in this region is still constrained by the high demand for plant water (KAT), because there are not many references. For this reason, this study aims to determine the amount of water needed for tomato planting and other parameters for each growth phase (f). The study is conducted on a land measuring 7m x 28 m, the size of the beds around 0.75 m x 28 m, the source of water from a tank with a capacity of 1600m3 and drip irrigation for crop irrigation. KBT analysis used a formula (Caoli, 1967), with analysis data from field data when planting tomatoes, so the results of the study are expected to be more realistic to address these obstacles in the development of tomato plants in the district of North Lombok. KAT analysis results with the Caolli formula show, for once irrigation in the initial phase (f1) around 0.738 m3, the active vegetative phase (f2) around 1.667 m3 and the fertilization phase until maturation of the initial fruit (f3) around 3.087 m3. The amount of soil moisture (w) additional irrigation in each phase is for f1 around 4% -5%, f2 around 6.5% -12% and f3 around 12% -17%. The duration of drip irrigation by 40 minutes needs to be shortened in phase f1, for phase f2 the duration is sufficient, and in phase f3 the duration needs to be added by more than 40 minutes or the irrigation schedule is shortened to less than 4.

POLA DISTRIBUSI HUJAN JAM-JAMAN DI STASIUN HUJAN JURANG SATE DAN STASIUN HUJAN LINGKOK LIME PADA WILAYAH LOMBOK TENGAH: Hourly Rainfall Distribution in Jurang Sate and Lingkok Lime Station in Central Lombok Regency Puji Rizki Yuli Yani; Humairo Saidah; Lalu Wirahman
Spektrum Sipil Vol 8 No 1 (2021): SPEKTRUM SIPIL
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/spektrum.v8i1.199

Kebanyakan hujan di Indonesia diukur menggunakan alat ukur manual sehingga tidak diketahui berapa lama durasi hujan berlangsung dan bagaimana distribusi hujannya. Padahal penentuan distribusi hujan dari data harian menjadi hujan jam-jaman sangat menentukan bentuk hidrograf yang dihasilkan, Dan sangat berpengaruh pada ketelitian debit rancangan yang dihasilkan. Penelitian ini bertujuan menguji pemakaian beberapa model perhitungan distribusi hujan jam-jaman untuk stasiun hujan Jurang Sate dan stasiun hujan Lingkok Lime di Lombok Tengah. Penelitian ini menggunakan metode Modified Mononobe, Alternating Block Method (ABM), dan Triangular Hyetograph Method (THM). Hasil ketiga metode dibandingkan dengan pola distribusi hujan jam-jaman dari hasil observasi berdasarkan nilai RMSE (Root Mean Squared Error) dan NSE (Nash-Sutcliffe Efficiency). Hasil yang diperoleh pada studi ini menyimpulkan bahwa metode Triangular Hyetograph Method (THM) memiliki pola distribusi hujan yang paling mendekati data observasi, dengan nilai RMSE dan NSE terbaik pada durasi hujan 2, 3, 6, 8 dan 9 jam. Distribusi hujan jam-jaman hasil observasi memiliki dua bentuk pola, yakni pada hujan yang berdurasi di bawah 5 jam memiliki pola intensitas hujan yang tinggi pada jam pertama dan semakin menurun hingga akhir durasi hujan. Pada hujan yang berdurasi lebih dari 6 jam, intensitas hujan cenderung membentuk pola segitiga yaitu kecil pada jam pertama dan naik hingga tercapai intensitas puncak, lalu menurun hingga akhir durasi hujan.

Co-Authors - - Akmaluddin Abdi Fadillah Adhitya Halim .P Agil Farhan Agus Suroso Agus Suroso Agus Suroso Agus Suroso AGUSTONO SETIAWAN Agustono Setiawan Agustono Setiawan Anid Supriyadi ANID SUPRIYADI Anid Supriyadi Anid Supriyadi Anid Supriyadi ANID SUPRIYADI ANNISA HUMAYRA DIRGANTARA ATAS PRACOYO Bambang Hariyanto Desi Widianty Eko Pradjoko Ery Setiawan ERY SETIAWAN Firdaus FITRAH RIZAL DWIASMORO Gusman Rosyadi Heri Sulistiyono HERI SULISTIYONO Heri Sulistiyono Heri Sulistiyono HERI SULISTYONO Heri Sulistyono Hidayat, Syamsul I D G JAYA NEGARA I D G JAYA NEGARA I DEWA GEDE JAYA NEGARA I DEWA GEDE JAYA NEGARA I Dewa Gede Jaya Negara I Dewa Gede Jaya Negara I Dewa Gede Jaya Negara I DEWA GEDE JAYANEGARA I G A N K Wardana I G AGUNG NGURAH RAI K W I Wayan Yasa I WAYAN YASA I Wayan Yasa I Wayan Yasa I.D.G Jayanegara IB Giri Putra Jauhar - Fajrin Junaidin Junaidin Kadek Wiratama KHAIRUDIN KHAIRUDIN Lalu Dwiki Axela Andriawan Lalu Wirahman Lalu Wirahman LALU WIRAHMAN WIRADARMA Lalu Wirahman Wiradarma Lia Hidayaturrohmi Lilik - Hanifah Lilik Hanifah Lilik Hanifah Lilik Hanifah Lilik Hanifah Lilik Hanifah Lilik Hanifah Lilik Hanifah M Bagus Budianto M Bagus Budianto M. BAGUS BUDIANTO M. BAGUS BUDIANTO Muh Bagus Budianto Muh Bagus Budianto Muh Syahid Muh. Bagus Budianto MUH. BAGUS BUDIANTO Muh. Bagus Budianto Muh. Bagus Budianto Muhammad Bagus Budianto Nadia Aprilestari Puji Rizki Yuli Yani Ratna Yuniarti Rini Srikus Saptaningtyas Rostihanji Saiful Anwar Salehudin Salehudin SALEHUDIN SALEHUDIN Salehudin Salehudin Shofia Rawiana Shofia Rawiana Sideman, Ida Ayu Oka Suwati Sofia - Rawiana Suparjo Suparjo Suparjo Suparjo Teti Handayani Tri Rachmanto YUSRON SAADI

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