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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 Syakur, Abdul; Koesmaryono, Yonny; Hidayati, Rini
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)
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) Hidayati, Rini; Boer, Rizaldi; Koesmaryono, Yonny; Kesumawati, Upik; Manuwoto, Sjafrida
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.
KARAKTERISTIK DAN DISTRIBUSI SPASIAL HABITAT POSITIF LARVA NYAMUK ANOPHELES SPP. BERDASARKAN CURAH HUJAN Tulak, Noper; Handoko, Handoko; Hidayati, Rini; Hadi, Upik Kesumawati; Hakim, Lukman
Media Kesehatan Masyarakat Indonesia Vol 14, No 3: SEPTEMBER 2018
Publisher : Faculty Of Public Health, Hasanuddin University, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (866.052 KB) | DOI: 10.30597/mkmi.v14i3.3307

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Penyakit malaria masih menjadi masalah kesehatan masyarakat di Kota Jayapura. Penyakit ini tersebar pada semua wilayah dengan jumlah kasus yang bervariasi. Peningkatan penularan penyakit malaria dipengaruhi oleh kondisi lokal, termasuk curah hujan, karakteristik habitat dan sebaran habitat larva. Tujuan penelitian ini untuk mengetahui karakteristik habitat dan pengaruh curah hujan terhadap sebaran habitat positif larva nyamuk Anopheles spp. di Distrik Heram Kota Jayapura. Metode yang digunakan merupakan observasi lapangan dengan pendekatan analisis deskriptif dan statistik. Hasil penelitian menunjukkan bahwa ada 6 jenis habitat perkembangbiakan nyamuk Anopheles  spp. di Distrik Heram, yaitu kobakan, kubangan, parit, kolam, kali dan bekas tapak ban. Habitat tersebut ditemukan di Kelurahan Waena dan Yabansai. Luas habitat larva berkisar antar 0.04-28 m2, kedalaman air 5-115 cm, suhu air 26.7-3.7 OC dan pH air 6.7-7.7. Sebaran habitat positif larva signifikan dipengaruhi oleh curah hujan yaitu kubangan (p=0.000; r=0.69), kobakan (p=0.000; r=0.87), parit (p=0,000; r=0.57), bekas tapak ban (p=0.047; r=0.34), kolam (p=0.000, r=0.57) dan kali (p=0.007; r=0.46) dengan koefisien determinan berkisar antara 0.11-0.77. Kesimpulan hasil penelitian menunjukkan bahwa curah hujan mempengaruhi sebaran habitat positif larva nyamuk Anopheles spp. di distrik Heram.
PENDUGAAN HOTSPOT SEBAGAI INDIKATOR KEBAKARAN HUTAN DI KALIMANTAN BERDASARKAN FAKTOR IKLIM Aflahah, Elania; Hidayati, Rini; Hidayat, Rahmat
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 9 No. 2 (2019): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.9.2.405-418

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The occurance of forest fire indonesia especially in Kalimantan is a potential threat to sustainable development. The purpose of this research is a early warning system in forest fire in Kalimantan, by estimating the hotspot as indicators based on visibility and climate data. This research using F test, T test, Multiple Linear Regression analysis, Principle Component Analysis (PCA) and Principle Component Regression Analysis (PCR) Vvisibility, hotspot and temperature data have releated, meaning the very big effect with forest fire incident. Test result of T test and ANOVA P-Value less than 0.05, there is influence between independent variables in this visibility and climate factor against dependent variables in this is the number of hotspots. Relation of climate variables to 10 days forest fire in Central Kalimantan R2 adjusted is 0.4699 with F calculate larger from F table is 160.0940. Relation of climate variables to dasarian forest fire in central kalimantan as early warning system has R2 adjusted that is 0.4176 with f calculate larger from table F of 129.3551. Conclusion forest fires following monsoon character and being affected by el nino events, visibility has a closer and can be used as a indicator of forest fire and land intensity, hotspot in a relationship has a close connection with visibility and climate condition at the same decade period, used equations for early warning system for predicted fire genesis indicates with hotspot amount, compiled from climate condition 10 days.
Profil Cuaca dan Parameter Nisbah Bowen di Areal Persawahan Kabupaten Indramayu Saat Periode Kering Musim Tanam II Taolin, Roberto I. C. O.; Impron, Impron; Hidayati, Rini; Budianto, Bregas
Savana Cendana Vol 2 No 01 (2017): Savana Cendana (SC) - January 2017
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Timor

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Abstract

Penelitian ini bertujuan untuk mendapatkan profil cuaca serta semua komponen yang mempengaruhi neraca energi selama periode kering musim tanam II yang terjadi di areal persawahan Kabupaten Indramayu, dilaksanakan bulan Juni hingga September 2012. Hasil penelitian menunjukkan fluktuasi cuaca harian dan parameter Nisbah Bowen umumnya mengikuti penerimaan radiasi neto sesuai karakter masing-masing seperti suhu, gradien suhu bola kering, kecepatan angin, limpahan bahang tanah dan limpahan bahang laten yang meningkat selama siang hari dan menurun kembali menjelang sore hari. Sebaliknya, gradien suhu bola basah, kelembaban dan tekanan udara, menurun selama siang hari dan kembali meningkat menjelang sore hari. Rata-rata harian unsur cuaca dan parameter bowen antara lain radiasi neto 241 W m-2, suhu udara 28,3 oC, kelembaban relatif 66%, tekanan udara 101 kPa, limpahan bahang tanah 8,1 W m-2, nisbah bowen 0,16, limpahan bahang laten 172,9 W m-2. Radiasi neto yang diterima permukaan selama penelitian relatif konstan antara 183 W m-2 sampai 268 W m-2 dengan rata-rata 231 W m-2, suhu udara rata-rata 29,4 oC. Kelembaban relatif berkisar antara 45% hingga 67% dengan rata-rata 59%, sedangkan tekanan udara rata-rata 101 kPa. Angin bertiup lebih banyak ke arah tenggara (138,4 o) dengan kecepatan rata-rata 0,9 m s-1. Limpahan bahang tanah berkisar antara 4,7 W m-2 sampai 14,6 W m-2 dengan rata-rata 7,9 W m-2 sedangkan Nisbah Bowen berkisar antara 0,02 sampai 0,22 dengan rata-rata 0.10. Limpahan bahang laten berbanding lurus terhadap penerimaan radiasi neto dengan nilai berkisar antara 134,4 W m-2 sampai 226,5 W m-2 dengan rata-rata 184 W m-2. ©2017 dipublikasikan oleh Savana Cendana.
Pendugaan Evapotranspirasi Padi Sawah Dengan Metode Nisbah Bowen Taolin, Roberto I. C. O.; Impron, Impron; Hidayati, Rini; Budianto, Bregas
Savana Cendana Vol 2 No 02 (2017): Savana Cendana (SC) - April 2017
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Timor

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Abstract

Penelitian ini bertujuan untuk menduga nilai evapotranspirasi dengan metode Nisbah Bowen di lahan sawah. Studi kasus di  Kabupaten Indramayu, dilaksanakan bulan Juni hingga September 2012. Komponen cuaca yang diukur dengan sistem Nisbah Bowen adalah radiasi neto, suhu bola basah dan bola kering, gradien suhu bola basah dan bola kering pada ketinggian antara 140 cm dan 160 cm serta pada ketinggian antara 160 cm dan 180 cm dan limpahan bahang tanah. Pengukuran setiap 30 menit mulai pukul 06.00 sampai pukul 18.00 Komponen yang diukur dengan AWS adalah radiasi, suhu, kelembaban, tekanan udara, curah hujan, arah dan kecepatan angin. Perhitungan dengan metode Nisbah Bowen kemudian dibandingkan dengan perhitungan menggunakan metode FAO Penman-Monteith. Hubungan evapotranspirasi harian hasil perhitungan dengan dua metode tersebut dianalisis dengan Korelasi (Pearson Correlation). Hasil penelitian menunjukkan evapotranspirasi harian di areal persawahan Kabupaten Indramayu pada saat periode kekeringan musim tanam II yang diduga menggunakan metode Nisbah Bowen berkisar antara antara 2,4 mm sampai 4,3 mm dengan rata-rata 3,3 mm, sedangkan evapotranspirasi harian yang diduga menggunakan metode FAO Penman-Monteith bervariasi antara 2,4 mm sampai 4,6 mm dengan rata-rata 3,5 mm. Rata-rata hasil estimasi evapotranspirasi harian dari kedua metode secara statistik tidak berbeda nyata. ©2017 dipublikasikan oleh Savana Cendana.
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

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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

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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.
The Influence of Satisfaction and Trust on Online Purchase Decision Muslikh, Muslikh; Zainal, Zainal; Hidayati, Rini
Jurnal Akuntansi Manajemen dan Ekonomi Vol 19 No 2 (2017)
Publisher : Faculty of Economics and Business, Jenderal Soedirman University

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The purpose of this study is to determine the effect of consumer satisfaction and trust on buying attitude and its impact on online purchase decision. The study was conducted through survey by distributing questionnaires to 130 students in Jakarta from various faculties. Research sampling used non probability sampling with purposive sampling technique. The results showed that: consumer satisfaction and trust have positive and significant effect on online purchase attitude. Consumer satisfaction and trust have positive and significant effect on online purchase decision, purchase attitude has significant effect on online purchase decision.
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

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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.