Claim Missing Document
Check
Articles

Using 3D-Var Data Assimilation for Improving the Accuracy of Initial Condition of Weather Research and Forecasting (WRF) Model in Java Region (Case Study : 23 January 2015) Sagita, Novvria; Hidayati, Rini; Hidayat, Rahmat; Gustari, Indra; Fatkhuroyan, Fatkhuroyan
Forum Geografi Vol 30, No 2 (2016): December 2016
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v30i2.2512

Abstract

Weather Research and Forecasting (WRF) is a numerical weather prediction model developed by various parties due to its open source, but the WRF has the disadvantage of low accuracy in weather prediction. One reason of low accuracy  of model is inaccuracy initial condition model to the actual atmospheric conditions. Techniques to improve the initial condition model is the observation data assimilation. In this study, we used three-dimensional variational (3D-Var) to perform data assimilation of some observation data. Observational data used in data assimilation are observation data from basic stations, non-basic stations, radiosonde data, and The Binary Universal Form for the Representation of meteorological data (BUFR) data from the National Centers for Environmental Prediction (NCEP) , and aggregate observation data from all stations. The aim of this study compares the effect of data assimilation with different data observation on January 23, 2015 at 00.00 UTC for Java island region. The results showed that changes root mean square error (RMSE) of surface temperature from 2° C to 1.7° C - 2.4° C, dew point from 2.1o C to 1.9o  C - 1.4o C, relative humidity from 16.1% to 3.5% - 14.5% after the data assimilation.
Effect of Climatic Factors and Habitat Characteristics on Anopheles Larval Density Tulak, Noper; Handoko, Handoko; Hidayati, Rini; Kesumawati, Upik; Hakim, Lukman
KEMAS: Jurnal Kesehatan Masyarakat Vol 13, No 3 (2018)
Publisher : Department of Public Health, Faculty of Sport Science, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/kemas.v13i3.11560

Abstract

Koya Barat village is one of the areas in Jayapura City which has high incidence of malaria. Malaria cases in this region are affected by local conditions, including the climate and environment of aquatic habitats.The purpose of this study was to analyze the effect of climatic factors and habitat characteristics on Anopheleslarval density in Koya Barat village. The method used is field observation with descriptive and statistical analysis approach.The results showed that there are four parameters that significantly affect on larval density, namely rainfall, air temperature, water temperature and salinity. The relationship between rainfall with the larval density in freshwater permanent habitat is negative linear. While in brackish water permanent habitat and semi permanent habitat is non-linear (2nd order polynomial). The relationship between air temperature, water temperature and salinity with the larval density in freshwater habitat are positive linear, while in brackish water habitat and semi permanent habitat are negative linear.
Pengaruh Penataan Massa Bangunan terhadap Pola Aktivitas Santri (Studi Kasus Pondok Pesantren Islamic Centre Bin Baz Putra Yogyakarta) Azhima, Farah Fauzan; Hidayati, Rini
Sinektika: Jurnal Arsitektur Vol 15, No 1: Januari 2018
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (983.374 KB)

Abstract

Kebutuhan utama manusia ada 3 yaitu sandang, pangan, dan papan. Papan (bangunan) dengan kehidupan manusia tidak dapat dipisahkan, karena manusia pasti melakukan aktivitas di dalam bangunan. Kenyamanan pada bangunan dapat terealisasi jika pada proses merancang telah memperhatikan segala segi seperti pola masa bangunan atau ruang, serta pola pergerakan manusia. Salah satu objek yang dapat kita amati yang di dalamnya terdapat hubungan antara tata massa bangunan, sirkulasi, dan pola pergerakan aktivitas adalah pondok pesantren. Pondok pesantren yang akan diteliti adalah Pondok Pesantren Islamic Centre Bin Baz Yogyakarta (Ponpes ICBB). Ponpes ICBB memiliki dua komplek pesantren yang terpisah yaitu komplek ikhwan (putra) dan akhwat (putri) sehingga untuk kemudahan dan efisiensi penelitian ini difokuskan pada komplek Ponpes ICBB putra dengan permasalahan yang diangkat adalah pengaruh penataan massa bangunan Ponpes ICBB Putra terhadap pola aktivitas santri. Penelitian ini menggunakan metode kualitatif. Peneliti melakukan observasi terhadap objek penelitian untuk mendapatkan data baik data fisik maupun non fisik. Kemudian data yang diperoleh akan dianalisis dengan melihat kesesuaianya terhadap skema awal perencanaan aktivitas santri berdasarkan jadwal yang telah diatur oleh pengelola pondok pesantren. Hasil penelitian adalah bahwa tata massa bangunan mempengaruhi pola pergerakan aktivitas santri untuk mencari jalur pergerakan/sirkulasi yang paling nyaman, dengan kriteria jalur bersih, lebih terbuka, sekalipun jalur sirkulasi itu lebih lama sampai di tempat tujuan. Dalam kasus ini dapat diidentifikasi bahwa pola tata massa Ponpes ICBB putra kurang efisien, sehingga santri harus beradaptasi dengan mencari cara beraktivitas yang efisien menurut mereka.
PENGARUH FAKTOR ALAMI DAN ANTROPOGENIK TERHADAP LUAS KEBAKARAN HUTAN DAN LAHAN DI KALIMANTAN Mareta, Lesi; Hidayat, Rahmat; Hidayati, Rini; Latifah, Arnida Lailatul
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) Vol 43, No 2 (2019)
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v43n2.2019.147-155

Abstract

Abstrak. Kebakaran hutan dan lahan (karhutla) di Indonesia khususnya di Kalimantan menjadi ancaman bagi pembangunan berkelanjutan karena efeknya secara langsung bagi ekosistem, berkontribusi pada peningkatan emisi karbon dan berdampak pada keanekaragaman hayati. Karhutla dipengaruhi oleh faktor alami dan faktor antropogenik oleh aktivitas manusia. Penelitian ini bertujuan untuk mendapatkan gambaran pengaruh faktor alami dan antropogenik secara terpisah terhadap luas kebakaran hutan dan lahan di Kalimantan. Pengaruh faktor alami dan antropogenik terhadap luas karhutla dianalisis dari data luaran model CMIP5 dengan teknik statistik Random Forests. Penelitian menggunakan data iklim dan data indeks karhutla. Data iklim terdiri dari variabel kelembaban relatif permukaan, suhu udara permukaan, dan curah hujan yang diperoleh dari luaran model MRI-CGCM3 CMIP5. Data indeks karhutla di Kalimantan diperoleh dari data Global Fire Emissions Database (GFED). Hasil analisis pada periode data tahun 1997 sampai dengan 2005 memperlihatkan karhutla terluas di Kalimantan terjadi pada tahun 1997 dan 2002. Variasi musiman historis luas karhutla di Kalimantan menunjukkan peningkatan pada bulan Juni, mencapai puncaknya pada bulan September dan mulai berkurang pada bulan November. Pada bulan Juni hingga Juli, faktor antropogenik bernilai positif yang berarti mengurangi kejadian kebakaran, sedangkan pada bulan Agustus hingga Oktober faktor antropogenik bernilai negatif, menyebabkan lebih banyak peristiwa karhutla.Abstract. Forest and land fires in Indonesia, especially in Kalimantan, are considered as a threat to sustainable development because of their direct effect on ecosystems, their contribution to increasing carbon emissions, and their impact on biodiversity. Forest and land fires are influenced by two main factors, namely climate conditions, and human activity (anthropogenic) factors. The objective of this research was to analyze the influence of natural and anthropogenic factors on the area of forest and land fires in Kalimantan. The anthropogenic effects on the area of burn scars can be analyzed by using the output of the CMIP5 model with statistical techniques, Random Forests. The data used are climate data and index data on forest and land fires in Kalimantan. Climate data consist of the variables: surface relative humidity, surface air temperature, and rainfall which were obtained from the output of the MRI-CGCM3 CMIP5 model. Indices of Forest and land fires in Kalimantan were obtained from Global Fire Emissions Database (GFED). The results of the analysis showed that extensive forest and land fires during the period of 1997 to 2005 in Kalimantan, occurred in 1997 and 2002. Historically extensive seasonal variations of Forest and land fires in Kalimantan increased in June, reaching the peak in September and decreased in November. Between June and July, anthropogenic factors positively influenced (causing less burned area), while from August to October had a negative effect (causing larger) burned areas.
KARAKTERISTIK LINGKUNGAN SONIK KAWASAN MASJID KERAJAAN DI SURAKARTA Syamsiyah, Nur Rahmawati; Mutiari, Dhani; Hidayati, Rini; Setiawan, Wisnu
LANGKAU BETANG: JURNAL ARSITEKTUR Vol 7, No 2 (2020): October
Publisher : Department of Architecture, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/lantang.v7i2.40840

Abstract

Masjid kerajaan di Surakarta yaitu Masjid Agung dan Masjid Al Wustho memiliki karakter kawasan yang berbeda. Kawasan Masjid Agung merupakan kawasan fungsi perdagangan yang ramai, sementara kawasan Masjid Al Wustho adalah kawasan fungsi pendidikan yang cenderung lebih tenang. Penelitian ini bertujuan untuk mengetahui karakteristik lingkungan sonik di kedua masjid, apakah fungsi kawasan berpengaruh terhadap lingkungan sonik yang terbentuk sesuai dengan karakter aktifitasnya. Penelitian dilakukan dengan pendekatan objektif melalui perekaman kondisi eksisting lingkungan sonik menggunakan H6Zoom dan analisis simulasi melalui program Audacity dan Surfer Mapping. Pendekatan subjektif dengan pengamatan aktivitas dan perilaku on-site survey serta wawancara. Hasil penelitian mengindikasikan karakter lingkungan sonik berbeda antara kedua masjid. Tingkat tekanan bunyi atau SPL rata-rata Masjid Agung adalah 60.8 dB, lebih rendah dari Masjid Al Wustho yang memiliki nilai SPL 63.8 dB. Fungsi kawasan tidak berpengaruh terhadap nilai SPL, melainkan komponen lanskap yang memiliki pengaruh. Penelitian ini dapat memberikan kontribusi terhadap perencanaan kawasan atau public space dengan pengurangan kebisingan lingkungan melalui pemilihan jenis material lanskap seperti pasir laut pantai selatan, vegetasi dan air serta perencanaan jalur sirkulasi yang terarah.SONIC ENVIRONMENTAL CHARACTERISTICS IN THE ROYAL MOSQUE IN SURAKARTA The royal mosque in Surakarta, namely the Grand Mosque and the Al Wustho Mosque, has a distinctly urban character. The Grand Mosque area is a busy trade function area, while the Al Wustho Mosque area is an educational function area that tends to be quieter. This study aims to determine the characteristics of the sonic environment in the two mosques, whether the area's function affects the sonic environment which is formed according to the character of its activities. The research was conducted with an objective approach by recording the existing sonic environment conditions using H6Zoom and simulation analysis through the Audacity and Surfer Mapping programs., A subjective approach by observing activities and behavior on-site surveys and interviews. The results indicated that the sonic environment character was different between the two mosques. The sound pressure level or SPL of the Great Mosque average is 60.8 dB, lower than the Al Wustho Mosque, which has an SPL value of 63.8 dB. The area's function does not affect the SPL value, but rather the landscape component that does. This research can contribute to area planning or public space be better by reducing environmental noise by selecting landscape material types such as south coast sea sand, vegetation, water, and directed circulation path planning. 
PELATIHAN DALAM UPAYA MENINGKATKAN DAYA SAING PRODUK UKM DI KAMPUNG WISATA BISNIS TEGALWARU BOGOR Hidayati, Rini; Byarwati, Muslikh Anis
Jurnal Pengabdian Masyarakat AbdiMas Vol 5, No 1 (2018): Jurnal Pengabdian Masyarakat Abdimas
Publisher : Universitas Esa Unggul

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47007/abd.v5i1.2452

Abstract

AbstractThe purpose of this program is to increase competitiveness micro and small medium enterprises (SMEs) in business tourism village Tegalwaru Bogor. The method used in this program is training about marketing and entrepreneurship for SMEs.The result is the increasing of awareness and understanding of marketing and entrepreneurship included: finance, banking, accounting, marketing, and cooperatives. Therefore, marketing and entrepreneurship training for SMEs enterprise should be done continuously, thus increasing sales turnover. Keywords: competitiveness, training, marketing AbstrakTujuan pengabdian kepada masyarakat ini adalah untuk meningkatkan daya saing produk UKM kampung Wisata Bisnis Tegalwaru Bogor. Metode yang dipergunakan adalah pelatihan dan pendampingan tentang pemasaran dan kewirausahaan. Hasil yang dicapai adalah meningkatnya pemahaman pelaku UKM kampung Wisata Bisnis tentang pemasaran dan kewirausahan yang meliputi aspek: Pemasaran era digital, pemasaran berbasis teknologi informasi, branding, inovasi dan kreativitas, daya saing produk. Kegiatan penmgabdian masyarakat ini sangat bermanfaat bagi pelaku UKM di kampung Wisata Bisnis Tegalwaru Bogor dalam meningkatakan daya saing produk yang dihasilkan Kata kunci: daya saing, pelatihan, pemasaran  
SEBARAN DAERAH RENTAN PENYAKIT DBD MENURUT KEADAAN IKLIM MAUPUN NON IKLIM(DISTRIBUTION OF VULNERABLE REGION OF DENGUE FEVER DISEASE BASED ON CLIMATE AND NON-CLIMATE CONDITION) Rini Hidayati; Rizaldi Boer; Yonny Koesmaryono; Upik Kesumawati; Sjafrida Manuwoto
Agromet Vol. 22 No. 1 (2008): June 2008
Publisher : PERHIMPI (Indonesian Association of Agricultural Meteorology)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (166.363 KB) | DOI: 10.29244/j.agromet.22.1.%p

Abstract

This research was aimed to investigate distribution of vulnerable region of dengue fever disease based on climate condition and population density in Indonesia. Climate condition, population density and vulnerability of district level were defined in the form of ordinal variable. The Koppen classification was used to proxy the climate condition. The population density was used to categorize the district level into small, medium and big cities. Regional vulnerability level was developed by using the values of IR and the 3-year consecutive incidence. The result of analysis using the frequency of incidence clarified that the population density and climate pattern influences the vulnerable level of the district. The big cities whose climate type are of Am (annual rainfall more than 1000 mm) and dry season is not extreme are the riskiest vulnerable region. On the contrary, the small cities whose dry season is not clear have high probability to be the safest region.
RESPON TANAMAN TOMAT TERHADAP RADIASI SURYA DAN SUHU UDARA PADA PENGGUNAAN PLASTIK BERPROTEKSI UVRESPONSE OF TOMATO ON RADIATION AND TEMPERATURE BY USING UV PROTECTED PLASTIC Abdul Syakur; Yonny Koesmaryono; Rini Hidayati
Agromet Vol. 17 No. 1 & 2 (2003): June 2003
Publisher : PERHIMPI (Indonesian Association of Agricultural Meteorology)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1080.88 KB) | DOI: 10.29244/j.agromet.17.1 & 2.12-20

Abstract

Abstract is available in the full text (pdf format)
PENDUGAAN LENGAS TANAH DALAM TUMPANGSARI JAGUNG-KEDELAI DENGAN METODE THORNTHWAITE DAN MATHER YANG DIMODIFIKASI Rini Hidayati; Tania June; M. BL. de Rozari
Agromet Vol. 9 No. 2 (1993): December 1993
Publisher : PERHIMPI (Indonesian Association of Agricultural Meteorology)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1064.112 KB) | DOI: 10.29244/j.agromet.9.2.24-34

Abstract

Abstract is available in the full text (pdf format)
PREDICTION OF PLANTING DATE AND GROWING PERIOD USING SEA SURFACE TEMPERATURE (SST) ANOMALIES IN NINO 3.4 FOR INDRAMAYU DISTRICT Rini Hidayati; Daniel Naek Chrisendo
Agromet Vol. 24 No. 2 (2010): DECEMBER 2010
Publisher : PERHIMPI (Indonesian Association of Agricultural Meteorology)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (773.645 KB) | DOI: 10.29244/j.agromet.24.2.1-8

Abstract

Agriculture is a very important sector in Indramayu’s economy. Approximately 53.52% of Indramayu residents are involved in agriculture. Indramayu is a center of rice production in Indonesia. Most of the farmers use a traditional cropping method called Pranata Mangsa, which is based on periodic natural events, but not consider climate variability well. Climate variability has become a major obstacle to achieving a successful harvest, because it can affect the timing of planting and length of the growing season, which leads to drought and flood vulnerability. The planting date and growing season predicted by using monthly sea surface temperature anomalies (SSTa) in Nino 3.4. The August SSTa can describe the planting date better than the growing season, which are demonstrated best in Lohbener with R2 = 45% with forecast skill reach = 84% and 92% for advanced and delayed planting dates. Knowing the planting date and growing season length produce a more effective cropping calendar, which includes details such as when to prepare the land, plant seeds, and harvest. This cropping calendar is expected to reduce the impacts of climate variability by providing a more efficient cropping pattern and avoiding potential harvest failures.Agriculture is a very important sector in Indramayu's economy. Approximately 53.52% of Indramayu residents are involved in agriculture. Indramayu is a center of rice production in Indonesia. Most of the farmers use a traditional cropping method called Pranata Mangsa, which is based on periodic natural events, but not consider climate variability well. Climate variability has become a major obstacle to achieving a successful harvest, because it can affect the timing of planting and length of the growing season, which leads to drought and flood vulnerability. The planting date and growing season predicted by using monthly sea surface temperature anomalies (SSTa) in Nino 3.4. The August SSTa can describe the planting date better than the growing season, which are demonstrated best in Lohbener with R2 = 45% with forecast skill reach = 84% and 92% for advanced and delayed planting dates. Knowing the planting date and growing season length produce a more effective cropping calendar, which includes details such as when to prepare the land, plant seeds, and harvest. This cropping calendar is expected to reduce the impacts of climate variability by providing a more efficient cropping pattern and avoiding potential harvest failures.
Co-Authors Abdul Syakur Absar, Rizki Maulana Abytia Etika Banja Aida Nur Safitri Akhmad Faqih Al Majiid Bagus Roid Al Maula, Sugha Faiz Alimatul Rahim Ana Turyanti Ananta Hagabean Nasution Ardhasena Sopaheluwakan Arga Rosa Wibawani Arinda, Dela Arnida Lailatul Latifah Azhima, Farah Fauzan Byarwati, Muslikh Anis Daniel Naek Chrisendo Dasanto, Bambang Dwi Delia, Desya Dellia Yunia Andriyani Devied Apriyanto Sofyan Dhani Mutiari Dirgha A. S. Adinegara Divina Umanita Iliyyan Dwi Adelianingsih Dwi Haryanti, Dwi Elania Aflahah Evi Sepri Yanti Fadhilla Tri Nugrahaini Fatkhuroyan Fatkhuroyan Fatkhuroyan Fatkhuroyan, Fatkhuroyan Fitri Eriyanti Fitri Eriyanti Flegor Hermes Sabuna Furqon Alfahmi Ghazali, Muhammad Gustari, Indra Handoko Handoko Handoko Handoko Hanny Nirwani Hazza Daffa Naufal Hidayat, Nizar Manarul Ikoh Maufikoh Imelda Sari Indra Gustari Indrawati Indrawati Isnaniah, Isnaniah Iswari, Maidilla Jati, Aden Bagus Kumoro Kusuma, Rifky Adam Lavenia, Rindy Lesi Mareta Lily Deviastri Lukman Hakim Lukman Hakim M. BL. de Rozari Maiyulisna, Maiyulisna Mamenun Mamenun Mamenun Mamenun Mareta, Lesi Marlia, Ade Meidiati Sekarsari Melya, Doa Ina Rista Muh. Taufik Muhammad Syafei Muslikh Muslikh Muslikh Muslikh Muslikh Muslikh Musthofa, Zaini Naufal Rasyid Rahmadi Noper Tulak Novvria Sagita Novvria Sagita Nur Rahmawati Syamsiyah Nurhasan Nurhasan, Nurhasan Oktavian, Rifai Muhammad P. Perdinan Perdana Wahyu Santosa Prasetya, Fahrizal Ary Putri Insyani, Nurdawani Rahmat Hidayat Rahmat Hidayat Rahmat Hidayat Rayhand, Muhammad Ahmal Revia Muharrami Rizaldi Boer Rizaldi Boer Santikayasa, I Putu Septina Tri Anggiani Siti Marhamah Siti Marhamah, Siti Sjafrida Manuwoto Tania June Tatang Kusuma Harjoko Taufik, Muh Tia Hardiyanah Upik Kesumawati Hadi Wafa, Muhammad Husnul Wirdanengsih Wirdanengsih Wisnu Setiawan Yon Sugiarto Yonny Koesmaryono Yonny Koesmaryono Yonny Koesmaryono Zhafiraah, Nazma Riska