Assimilation of Weather Radar Data Using WRF 3DVar Modelling for Rainfall Prediction

Hastuti, Miranti Indri; Paski, J. I. A.

doi:10.1088/1755-1315/303/1/012047

Cited by 4 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In addition, the WRF simulation in this study also showed reliable results in the air humidity simulation. This is in line with another research in Indonesia by Hastuti and Paski [29], that also used a 'tropical suite' parameterization which still gave reliable outcomes in simulating air humidity even without data assimilation. However, the WRF simulation in this study gave unsatisfactory results in simulating surface wind speed and surface pressure.…”

Section: Wrf Verificationsupporting

confidence: 87%

Identification of Mountain Waves and Their Characteristics in the Central Java Region based on the WRF Numerical Weather Model

Kristianto,

Claudia,

Virgianto

2023

Trends Sci

View full text Add to dashboard Cite

One of the factors that influence the complexity of the weather and climate phenomena in Indonesia is the diverse topographical conditions. The Mountain waves are quite common in Indonesia, especially on the island of Java, which has several mountains with quite high peaks. The existence of mountain waves can be known from the presence of lenticularis clouds both on top of the mountain are regularly reported by residents in the area of Mount Ungaran and Mount Lawu in Centra Java. This study utilized the Weather Reasearch Forecast (WRF), a numerical weather model to identify mountain waves and their characteristics in Mount Ungaran and Mount Lawu. The results of the study are that there were 2 mountain wave events in Mount Ungaran on 9 September 2018 with an average duration of 5 h, and horizontal wavelengths reaches 28 km. During that mountain wave events, there was also a type 1 rotor with dominant positive vorticity and a breaking pattern that indicates the potential for strong turbulence which is supported by critical Ri value at a distance of 30 - 90 m on the leeward side. Meanwhile, in Mount Lawu case on 9 March 2019, the mountain wave onset occurs during the day is in the afternoon, its duration is 2 h, wavelengths ranging from 5.9 to 6.1 km, where in the leeward side has no strong turbulence potential. In general, WRF can simulate both mountain waves and rotors, but has not been able to properly simulate the downslope windstorms. HIGHLIGHTS There were 2 mountain wave events that occurred at Mount Ungaran on 9 September 2018. The classification of mountain waves obtained from on cross section analysis of vertical wind speed around the mountain is vertically propagating wave The type of rotor formed at Mount Ungaran is a type 1 rotor a type 1 rotor with a dominant positive vorticity value In Mount Lawu case on 9 March 2019, the onset of waves occurred during the day and then dissipated in the afternoon with wavelengths ranging from 5.9 to 6.1 km In Mount Lawu case, on the leeward side of the mountain, there was no potential for turbulence at that location WRF can simulate mountain waves and rotors well, but can't simulate well the downslope windstorm on Mount Ungaran GRAPHICAL ABSTRACT

show abstract

Section: Wrf Verificationsupporting

confidence: 87%

Identification of Mountain Waves and Their Characteristics in the Central Java Region based on the WRF Numerical Weather Model

Kristianto,

Claudia,

Virgianto

2023

Trends Sci

View full text Add to dashboard Cite

show abstract

“…However, existing studies are still limited to simulating atmospheric conditions, not yet providing recommendations for urban design and regional development planning (Blackstone et al, 2017;Bonnett & Birchall, 2023;Harbin & Larsen, 2017;Lamberg, 2021). Most studies are also still focused on the capital city of Jakarta (Fatkhuroyan et al, 2019;Hastuti & Paski, 2019). The effect of UHI on rainfall in Makassar city has been conducted by Sari & Atsidiqi (2020).…”

Section: Resultsmentioning

confidence: 99%

Utilization of Meso-scale Weather Models in Urban Development Policy and Planning: A Review

Latue,

Manakane,

Rakuasa

2023

Economics

View full text Add to dashboard Cite

The policy in dividing the KBI and KTI regions is intended to avoid development imbalances that occur in Indonesia. Development in Eastern Indonesia is considered disproportionate and only focused on the Western Region. But now the priority of regional development will be focused on Eastern Indonesia. As a large city in North Sulawesi that is included in Eastern Indonesia, Manado has a strategic location as an investment gateway to economic growth in Eastern Indonesia, this is the background for the development plan of Mapanget sub-district which is included in the Manado City area to become a new city center. This research aims to assess the feasibility of the Mapanget area as the object of this strategic project. The method used was a literature study in combination with the availability of secondary data obtained from research, records and provisions related to the analysis of new city development. Based on the results of the various elements of new city development such as residential areas, health and education facilities, trade, services and industry, and population accessibility have experienced large growth in the period (2007-2019) or in the last twelve years. In terms of development planning, there are also complete guidelines that are based on an in-depth study of various aspects, so it can be concluded that Mapanget Sub-district is strategic enough for the development of a New City in Eastern Indonesia.

show abstract

“…Model WRF pada penelitian ini disetting menggunakan opsi fisis Tropical Physics Suite. Opsi fisis tersebut didesain untuk wilayah tropis (Hastuti & Paski, 2019), namun model WRF masih belum mampu memprediksi Gambar 5. Peta topografi wilayah penelitian.…”

Section: Hasil Dan Pembahasanunclassified

Respon Hujan Lebat dan Kenaikan Tinggi Muka Laut Terhadap Prediksi Luasan Banjir Rob di Semarang (Studi Kasus Tanggal 3 – 5 Desember 2018)

Efendi¹,

Kristianto

Pratama

2021

Jurnal Kelautan Nasional

View full text Add to dashboard Cite

Wilayah pesisir merupakan lingkungan yang menyimpan beragam kekayaan hayati dan non hayati. Disisi lain, wilayah pesisir juga memiliki kerentanan bencana alam yang tinggi, salah satunya adalah banjir pesisir atau banjir rob. Banjir rob disebabkan akibat kenaikan Tinggi Muka Laut (TML) sehingga menggenangi daerah rendah di sekitar pantai. Luas wilayah yang tergenang banjir rob semakin bertambah apabila bersamaan dengan terjadinya hujan lebat. Salah satu wilayah di Indonesia yang rentan terhadap dampak banjir rob adalah kota Semarang. Banjir rob menyebabkan kualitas lingkungan dan kehidupan masyarakat di wilayah pesisir menurun drastis. Penelitian ini bertujuan untuk memprediksi banjir rob berbasis model Hidrodinamika LISFLOOD FP di pesisir Semarang. LISFLOOD FP menggunakan pendekatan difusi gelombang persamaan St Venant dengan data raster Digital Elevation Model (DEM) sebagai domain serta data detail aliran air untuk menyimulasikan dinamika banjir. Model LISFLOD FP menggunakan data prediksi tinggi muka laut dari model Delft3D dan prediksi intensitas hujan dari model WRF untuk memprediksi banjir rob. Model banjir rob dijalankan dengan 2 variasi skema, pertama model tanpa memperhitungkan data intensitas hujan dan kedua model dengan memperhitungkan data intensitas hujan. Hasil penelitian menunjukkan bahwa model banjir rob untuk kedua skema menunjukkan kedalaman banjir yang hampir sama sekitar 0,2 - 1,5 m. Model banjir rob dengan memperhitungkan data intensitas hujan menunjukkan luasan banjir yang lebih tinggi sebesar 5,6% dibandingkan dengan model banjir rob tanpa memperhitungkan data intensitas hujan.

show abstract

Assimilation of Weather Radar Data Using WRF 3DVar Modelling for Rainfall Prediction

Cited by 4 publications

References 3 publications

Identification of Mountain Waves and Their Characteristics in the Central Java Region based on the WRF Numerical Weather Model

Identification of Mountain Waves and Their Characteristics in the Central Java Region based on the WRF Numerical Weather Model

Utilization of Meso-scale Weather Models in Urban Development Policy and Planning: A Review

Respon Hujan Lebat dan Kenaikan Tinggi Muka Laut Terhadap Prediksi Luasan Banjir Rob di Semarang (Studi Kasus Tanggal 3 – 5 Desember 2018)

Contact Info

Product

Resources

About