scholarly journals The Use of Laser Precipitation Monitor (LPM) of Disdrometer and Weather Radar to Determine the Microphysics Characteristics of Extreme Rainfall in Jakarta. (Jakarta Flood Case Study February 25, 2020)

2021 ◽  
Vol 893 (1) ◽  
pp. 012017
Author(s):  
I D G A Putra ◽  
A Sopaheluwakan ◽  
B P Adi ◽  
K A Sudama ◽  
J Rizal ◽  
...  
Keyword(s):  
Extreme Rainfall ◽  
Weather Radar ◽  
Heavy Rain ◽  
Maximum Diameter ◽  
Convective Clouds ◽  
Data Volume ◽  
Accumulated Rainfall ◽  
The One ◽  
The Relationship

Abstract Heavy rains on February 24, 2020, caused flooding in most parts of Jakarta and its surroundings. The one-day observation of accumulated rainfall from the Laser Precipitation Monitor (LPM) was recorded at 358.6 mm/day at the Kemayoran station on February 25, 2020, at 00.00 UTC (07.00 Jakarta Time). In this study, analysis of the microphysical characteristics of extreme rainfall using LPM installed at Kemayoran meteorology station and weather radar at Cengkareng meteorology station with a spatial radius of 250 km. LPM is used to measure the diameter of the raindrops, the velocity of falling raindrops, LPM reflectivity, and the amount of accumulated rainfall with time resolution per minute and stored in excel data format. While the weather radar is used to measure the reflectivity spatially and temporally in the data volume format (.vol). The method used is, first, to find the relationship between LPM reflectivity and the amount of LPM rainfall with regression analysis. Second, the radar reflectivity is converted into estimated rainfall intensity for the Jakarta area and its surroundings. The results of this study found a relationship between LPM reflectivity (X) and rainfall accumulation LPM (Y) to form a regression relationship with the formula Y = 0.013X with R2 = 0.3777. Based on the record of the LPM time series, the peak of rainfall occurred at 18.17 UTC with 1000 raindrops, the maximum fall speed was 10 m/s, and the maximum diameter is 8.5 millimeters. Based on the results of microphysical measurements of LPM, spatial plots, and vertical cross-section radar, it can be concluded that flooding in Jakarta is due to heavy rain from convective clouds.

scholarly journals Comments on “Incorporating the Effects of Moisture into a Dynamical Parameter: Moist Vorticity and Moist Divergence”

2016 ◽  
Vol 31 (4) ◽  
pp. 1393-1396 ◽  
Author(s):  
David M. Schultz ◽  
Thomas Spengler
Keyword(s):  
Relative Humidity ◽  
Potential Vorticity ◽  
Single Case ◽  
Heavy Rain ◽  
Relative Vorticity ◽  
Dynamical Parameter ◽  
Accumulated Rainfall ◽  
Moist Potential Vorticity ◽  
Model Precipitation

Abstract In a recent article, Qian et al. introduced the quantities moist vorticity and moist divergence to diagnose locations of heavy rain. These quantities are constructed by multiplying the relative vorticity and divergence by relative humidity to the power k, where k = 10 in their article. Their approach is similar to that for the previously constructed quantity generalized moist potential vorticity. This comment critiques the approach of Qian et al., demonstrating that the moist vorticity, moist divergence, and by extension generalized moist potential vorticity are flawed mathematically and meteorologically. Raising relative humidity to the 10th power is poorly justified and is based on a single case study at a single time. No meteorological evidence is presented for why areas of moist vorticity and moist divergence should overlap with regions of 24-h accumulated rainfall. All three quantities have not been verified against the output of precipitation directly from the model nor is the approach of combining meteorological quantities into a single parameter appropriate in an ingredients-based forecasting approach. Researchers and forecasters are advised to plot the model precipitation directly and employ an ingredients-based approach, rather than rely on these flawed quantities.

Using Cloud Model to Improve the Membership Function in Fuzzy Risk Assessment of Reservoir-Induced Seismicity

2013 ◽  
Vol 664 ◽  
pp. 270-275 ◽  
Author(s):  
Ming Zhong ◽  
Qiu Wen Zhang
Keyword(s):  
Risk Assessment ◽  
Membership Function ◽  
Induced Seismicity ◽  
Cloud Model ◽  
Reservoir Induced Seismicity ◽  
Fuzzy Risk Assessment ◽  
The One ◽  
The Relationship ◽  
The Membership Function

Due to the uncertainty and complexity of the causes in reservoir-induced seismicity, the relationship between the environmental factor and the possible earthquake magnitude can be described by membership function. This study aims to propose a fuzzy method to contribute the membership function in which the normal cloud model is applied. Firstly, the cloud model is introduced in detail. Based on normal cloud model, the one-to-many mapping model is presented to deal with the fuzziness and randomness in the membership function. Finally, the case study in Yangtze Three Gorges Reservoir is presented to illustrate the membership cloud function in fuzzy risk assessment of reservoir-induced seismicity. The obtained results show that the proposed method is the viable approaches in solving the problem when the memberships are vague and imprecise.

scholarly journals Persepsi Masyarakat Dusun Gili Trawangan Terhadap Penyebab Terjadinya Bencana Gempa Bumi

2020 ◽  
Vol 2 (1) ◽  
pp. 89-107
Author(s):  
Taufiq Ramdani ◽  
Muhammad Arwan Rosyadi ◽  
Azhari Evendy ◽  
Anisa Puspa Rani
Keyword(s):  
Case Study Research ◽  
Natural Phenomenon ◽  
Natural Occurrence ◽  
Religious Leaders ◽  
Level Of Education ◽  
The One ◽  
Relationship Of ◽  
The Relationship ◽  
Depth Interviews

An inevitability that natural disasters such as earthquakes will be perceived differently by different individuals within a community, some may perceive earthquakes as a natural occurrence plain and others perceive in transcendental meaning (the relationship of creatures and their Lord), namely the relationship causality between human behavior on the one hand as the cause and the punishment of God through the natural disaster on the other side as a result. This study aims to (1) determine how the perception of Gili Trawangan people to the cause of earthquake that has ever happened, (2) to determine the factors that affect the perception of Gili Trawangan people to the cause of earthquake. This research is down with qualitative paradigm, and case study research as design. Then, the technique of purposive samping and snow ball sampling are used to determine some key informans and support informans.  As for in-depth interviews, observation, and documentation are some of the data collection techniques. The research showed that the majority of Gili Trawangan people (71%) perceive that all behaviour and activity of Gili Trawangan community, then the type of tourism business that correlate to party activity, promiscuity, alcohol, as the cause of the earthquake. As for the small percentage (16%) of Gili Trawangan people who are the owner of tourism business perceiving that the earthquake is a natural phenomenon that occurs naturally due to the cyclical annual. As for those who perceive ambiguously are their backgrounds as tourism workers, such as waiters, porters, coachman of horse cart, and others, the amount are 14%. Perception ambiguous question in this research is at one time informants perceive that the cause of the earthquake transcendentally based on religious beliefs but at the same time agree well with the perception that the earthquake is a natural annual cycle. The factors that influence the perception of the above is the level of education, various professions, understanding delivered by preachers and religious leaders, and presentation of information from the mass media.

scholarly journals Brand as an innovation—The case of Czech wine

2021 ◽  
pp. 115-124
Author(s):  
Jan Zavodny Pospisil
Keyword(s):  
Czech Republic ◽  
The Other ◽  
Wine Production ◽  
The Czech Republic ◽  
Wine Market ◽  
The One ◽  
The Relationship

The Czech Republic is not a typical wine-growing country, yet winemaking and viticulture are among the oldest Czech crafts. Although the situation is slightly improving today, domestic wine production is not very preferred by Czech consumers since more than two-thirds of the wine that Czechs drink each year is imported. In the long term, the worst situation prevailed with the sales of a young wine. The cause was twofold: On the one hand, the market was already penetrated by imported Beaujolais nouveau, which became a synonym for the young wine. On the other, a peculiar Czechs’ taste for young wine was also an obstacle. As a young wine, many Czechs drink partially fermented must from grapevine fruits called “Burčák”. The young wine market was therefore seemingly penetrated with a low possibility of new brands entering it. The proposed case study will describe an ongoing campaign in which a new brand, “Svatomartinské víno”, was created. With this brand, it was possible to change the Czech consumers’ view of immature wines fundamentally. Thanks to the innovative branding approach, the product, which Czech consumers had neglected for many years, became a superior and must-have product for broad consumers. Also, the relationship between the brand and consumers has been established. The new brand has become a potential for many other related events. Last but not least, the consumption of domestic wine increased, which led to the support of local wineries and related regions.

Persepsi Masyarakat Dusun Gili Trawangan Terhadap Penyebab Terjadinya Bencana Gempa Bumi

2020 ◽  
Vol 2 (1) ◽  
pp. 89-107
Author(s):  
Taufiq Ramdani ◽  
Muhammad Arwan Rosyadi ◽  
Azhari Evendy ◽  
Anisa Puspa Rani
Keyword(s):  
Case Study Research ◽  
Natural Phenomenon ◽  
Natural Occurrence ◽  
Religious Leaders ◽  
Level Of Education ◽  
The One ◽  
Relationship Of ◽  
The Relationship ◽  
Depth Interviews

An inevitability that natural disasters such as earthquakes will be perceived differently by different individuals within a community, some may perceive earthquakes as a natural occurrence plain and others perceive in transcendental meaning (the relationship of creatures and their Lord), namely the relationship causality between human behavior on the one hand as the cause and the punishment of God through the natural disaster on the other side as a result. This study aims to (1) determine how the perception of Gili Trawangan people to the cause of earthquake that has ever happened, (2) to determine the factors that affect the perception of Gili Trawangan people to the cause of earthquake. This research is down with qualitative paradigm, and case study research as design. Then, the technique of purposive samping and snow ball sampling are used to determine some key informans and support informans.  As for in-depth interviews, observation, and documentation are some of the data collection techniques. The research showed that the majority of Gili Trawangan people (71%) perceive that all behaviour and activity of Gili Trawangan community, then the type of tourism business that correlate to party activity, promiscuity, alcohol, as the cause of the earthquake. As for the small percentage (16%) of Gili Trawangan people who are the owner of tourism business perceiving that the earthquake is a natural phenomenon that occurs naturally due to the cyclical annual. As for those who perceive ambiguously are their backgrounds as tourism workers, such as waiters, porters, coachman of horse cart, and others, the amount are 14%. Perception ambiguous question in this research is at one time informants perceive that the cause of the earthquake transcendentally based on religious beliefs but at the same time agree well with the perception that the earthquake is a natural annual cycle. The factors that influence the perception of the above is the level of education, various professions, understanding delivered by preachers and religious leaders, and presentation of information from the mass media.

“Completely impartial opinion, okay?”

2021 ◽  
Vol 10 (3) ◽  
pp. 368-396
Author(s):  
Maarten Bogaards
Keyword(s):  
Argumentation Theory ◽  
The Other ◽  
Research Interest ◽  
Third Party ◽  
Multidisciplinary Study ◽  
Considerable Research ◽  
Audience Adaptation ◽  
The One ◽  
The Relationship

Abstract Sponsorships on YouTube – i.e., video creators on YouTube promoting a third-party product or service to their audience – have attracted considerable research interest recently in various disciplines. This multidisciplinary study analyzes it from the perspective of argumentation theory, specifically pragma-dialectics, which offers valuable new insights into the discursive tensions inherent to this type of promotion. These tensions arise between the creator’s relationship with their audience on the one hand, which is built upon ‘parasocial’ evaluations of authenticity and community, and the commercial third party brand on the other. The insights provided by the pragma-dialectic analysis are demonstrated by means of a case study examining a sponsorship segment by YouTuber PewDiePie, which shows that creators can employ specific types of presentational choices and audience adaptation strategically to undercut commitment to the sponsor while furthering the relationship with their viewers.

Estimating Lightning NOx Production Using NO2 Columns from the TROPOMI Instrument and Flashes from the Geostationary Lightning Mappers

2020 ◽  
Author(s):  
Kenneth Pickering ◽  
Dale Allen ◽  
Eric Bucsela ◽  
Jos van Geffen ◽  
Henk Eskes ◽  
...  
Keyword(s):  
United States ◽  
Case Studies ◽  
The United States ◽  
Data Set ◽  
Case Study Analysis ◽  
Convective Systems ◽  
Convective Clouds ◽  
Deep Convective Clouds ◽  
The One

<p>Nitric oxide (NO) is produced in lightning channels and quickly comes into equilibrium with nitrogen dioxide (NO<sub>2</sub>) in the atmosphere.  The production of NO<sub>x</sub> (NO + NO<sub>2</sub>) leads to subsequent increases in the concentrations of ozone (O<sub>3</sub>) and the hydroxyl radical (OH) and decreases in the concentration of methane (CH<sub>4</sub>), thus impacting the climate system.  Global production of NO<sub>x</sub> from lightning is uncertain by a factor of four.  NO<sub>x</sub> production by lightning will be examined using NO<sub>2</sub> columns from the TROPOspheric Monitoring Instrument (TROPOMI) on board the Copernicus Sentinel-5 Precursor Satellite with an overpass time of approximately 1330 LT and flash rates from the Geostationary Lightning Mapper (GLM) on board the NOAA GOES-16 (75.2° W) and GOES-17 (137.2° W) satellites.  Where there is overlap in coverage of the two GLM instruments, the greater of the two flash counts is used.  Two approaches have been undertaken for this analysis:  a series of case studies of storm systems over the United States, and a gridded analysis over the entire contiguous United States, Central America, northern South America, and surrounding oceans.  A modified Copernicus Sentinel 5P TROPOMI NO<sub>2</sub> data set is used here for the case-study analysis to improve data coverage over deep convective clouds.  In both approaches, only TROPOMI pixels with cloud fraction > 0.95 and cloud pressure < 500 hPa are used.  The stratospheric column is removed from the total slant column, and the result is divided by air mass factors appropriate for deep convective clouds containing lightning NO<sub>x</sub> (LNO<sub>x</sub>).  Case studies have been selected from deep convective systems over and near the United States during the warm seasons of 2018 and 2019.  For each of these systems, NO<sub>x</sub> production per flash is determined by multiplying a TROPOMI-based estimate of the mean tropospheric column of LNO<sub>x</sub> over each system by the storm area and then dividing by a GLM-based estimate of the flashes that contribute to the column.  In the large temporal and spatial scale analysis, the TROPOMI data are aggregated on a 0.5 x 0.5 degree grid and converted to moles LNO<sub>x</sub>*.  GLM flash counts during the one-hour period before TROPOMI overpass are similarly binned. A tropospheric background of LNO<sub>x</sub>* is estimated from grid cells without lightning and subtracted from LNO<sub>x</sub>* in cells with lightning to yield an estimate of freshly produced lightning NO<sub>x</sub>, designated LNO<sub>x</sub>.  Results of the two approaches are compared and discussed with respect to previous LNO<sub>x</sub> per flash estimates.</p><p> </p>

I Doria e la chiesa di San Matteo a Genova nella seconda metà del Duecento

2021 ◽  
pp. 163-188
Author(s):  
Paola Guglielmotti
Keyword(s):  
Large Family ◽  
Urban Families ◽  
The Other ◽  
Small Church ◽  
Other Hand ◽  
The One ◽  
The Relationship ◽  
The Church

The essay addresses the problem of the relationship between large aristocratic families and “noble parishes” in Genoa, by considering the case of the Doria and the church of San Matteo, founded in 1125 and whose reconstruction was planned in 1278. On the one hand, three qualifying aspects of the Doria kinship are examined in order to understand the role of the small church in enhancing the coordination of the group: i.e., positions of leadership and command in the maritime city and in its government; dispersion and presence outside Genoa; numerical strength, residence and leadership. On the other hand, the article considers the insertion of San Matteo in the monastic network (not only in Liguria) headed by the abbey of San Fruttuoso, and how its reconstruction allowed for the diversification of the large family internal and external relevance. The conclusion, thanks to the comparison with the experiences of other important urban families, shows the uniqueness of this case study and how broader and more systematic comparisons should be made, even outside the Genoese context.

scholarly journals Peran Guru Pendidikan Agama Islam dalam Implementasi Program Gerakan Anti Narkoba Sebagai Upaya Pencegahan Penggunaan Zat Adiktif pada Siswa di SMA NU Juntinyuat

2020 ◽  
Vol 2 (1) ◽  
pp. 76-100
Author(s):  
Muhammad Saefudin
Keyword(s):  
Qualitative Research ◽  
Religious Education ◽  
Study Data ◽  
Research Information ◽  
Self Confidence ◽  
Nahdlatul Ulama ◽  
The One ◽  
The Relationship

During adolescence or many students experience a period of ambivalence (ambivalence). On the one hand, they still want to be comfortable living under the protection and love of their parents, but on the other hand they want to develop independently or independently. It is in these situations and conditions that often rebel teenagers and want to impose their will. This is the situation that happened in the Nahdlatul Ulama Juntinyuat High School (SMA NU Juntinyuat) in Indramayu district, finding students who consumed addictive substances. So that it causes behavior that is not appropriate for students in general. Based on the above background, the authors conducted research with the aim of revealing how the role of Islamic religious education teachers in the implementation of the anti-drug movement program as an effort to prevent the use of addictive substances in students at SMA NU Juntinyuat Indramayu with research objectives: (1) To determine the implementation of the movement program anti drugs at SMA NU Juntinyuat Indramayu. (2) To determine the role of Islamic religious education teachers in efforts to prevent the use of addictive substances in students at SMA NU Juntinyuat. (3) This is to determine the relationship between the anti-drug movement program and efforts to prevent the use of addictive substances by students at SMA NU Juntinyuat. The author in this research uses qualitative research methods. The type of qualitative research that the author uses is a case study. Data collection is carried out by observation, documentation, interview techniques. Data analysis techniques include data reduction, data presentation, and drawing conclusions. Research information. The conclusion of this study is that the results of the anti-drug movement program implemented in SMA NU Juntinyuat Indramayu succeeded in regaining students' self-confidence. This is known from the decrease in students who are addictive substances. Abstak Pada masa remaja atau siswa banyak mengalami masa ambivalensi (sikap mendua). Di satu sisi meraka masih ingin mendapat kenyamanan hidup di bawah perlindungan dan kasih sayang orang tua, tetapi di sisi lain mereka ingin pula berkembang secara independen atau mandiri.[1] Dalam situasi dan kondisi yang membimbangkan inilah remaja sering memberontak dan ingin memaksakan kehendaknya. Inilah situasi yang terjadi di Sekolah Menengah Atas Nahdlatul Ulama Juntinyuat (SMA NU Juntinyuat)kabupaten Indramayu, menemukan siswa yang mengkonsumsi zat adiktif. Sehingga menimbulkan perilaku yang tidak sewajarnya selayaknya pelajar pada umumnya. Berdasarkan latar belakang di atas, penulis melakukan penelitian dengan tujuan untuk mengungkapkan bagaimana peran guru pendidikan agama Islam dalam implementasi program gerakan anti narkoba sebagai upaya pencegahan penggunaan zat adiktif pada siswa di SMA NU Juntinyuat Indramayu dengan tujuan penelitian: (1) Untuk mengetahui implementasi program gerakan anti narkoba di SMA NU Juntinyuat Indramayu. (2) Untuk mengetahui peran guru pendidikan agama Islamdalam upaya  mencegah penggunaan zat adiktif pada siswa di SMA NU Juntinyuat. (3) Untuk mengetahui keterkaitan program gerakan anti narkoba dengan upaya mencegah penggunaan zat adiktif oleh siswa di SMA NU Juntinyuat. Penulis dalam riset ini menggunakan metode penelitian Kualitatif. Jenis penelitian Kualitatif yang penulis gunakan adalah Studi Kasus.Pengumpulan data dilakukan dengan teknik observasi, dpkumentasi, wawancara.Teknik analisis data meliputi meliputi reduksi data, penyajian data, dan penarikan kesimpulan.Informan penelitian. Kesimpulan dari penelitian ini adalah bahwa Hasil Program gerakan anti narkoba yang diterapkan di SMA NU Juntinyuat Indramayu ini berhasil menumbuhkan kembali rasa percaya diri siswa. Hal ini diketahui dari berkurangnya siswa yang ketergantungan zat adiktif..  

scholarly journals JOVENS BRASILEIROS, DESCENDENTES DE ITALIANOS: relações transnacionais e significados da dupla cidadania

2013 ◽  
Vol 20 (2) ◽  
pp. 6 ◽  
Author(s):  
Mariagrazia Santagati
Keyword(s):  
The Other ◽  
Qualitative Investigation ◽  
Great Cost ◽  
The Past ◽  
Multiple Meanings ◽  
Investigación Cualitativa ◽  
The One ◽  
Relationship Of ◽  
The Relationship

O artigo apresenta os resultados de uma pesquisa qualitativa, que reconstrói biografias de jovens brasileiros que são descendentes de italianos, com a cidadania italiana ou à espera de retorno ou de partida para a Itália. A análise propõe uma exploração dos múltiplos sentidos, instrumentais e simbólicos, da cidadania e aprofunda o relacionamento dos oriundi com o seus antepassados: por um lado, os jovens entrevistados são colocados em um "mercado da cidadania", dirigido por profissionais mais ou menos competentes e honestos, que se propõem buscar a documentação necessária para a aquisição da cidadania, vendendo a um preço elevado o "sonho italiano". Por outro lado, eles pretendem viajar para a Itália em busca de suas raízes, impulsionados pela memória e lembranças de família, em uma mobilidade facilitada por redes transnacionais de familiares e amigos. O estudo de caso mostra que as migrações nunca são definitivas, mas são viagens de ida e volta: o caminho para a Itália destes jovens é um caminho oposto aos avós e bisavós, que vieram no passado do Brasil, e caracteriza a trajetória de pessoas que, ao mesmo tempo, reivindicam um vínculo formal e emocional com a terra de seus antepassados, mas estão procurando melhores oportunidades de vida na Itália e na Europa.Palavras-chave: Jovens. Cidadania. Migrações. Redes transnacionais.YOUNG BRAZILIANS WITH ITALIAN ORIGINS: transnational relationships and meanings of dual citizenshipAbstract: The article presents the outcomes of a qualitative investigation whose objective was to write the biography of young Brazilians with Italian origins, young Brazilians waiting for or already possessing Italian citizenship and young Brazilians waiting to get back to Italy. The study examines the multiple meanings of citizenship and analyzes the relationship of Italian Oriundi Brazilians with the country of their ancestors:on the one hand, the interviewees live in a sort of "market of citizenship", managed by officers with variable levels of expertise and honesty. These officers are responsible for searching the documents required to obtain Italian citizenship and sell the "Italian dream" at great cost. On the other hand, young Brazilians consider their journey to Italy as a way back to their origins, guided by their memories and those of their family and supported by transnational networks of relatives and friends. The case study here presented highlights how migrations are actually endless. These are instead more similar to round trips: young Brazilians'way back to Italy is opposite to that of their grandparents and great grandparents travelling to Brazil in the past; furthermore, it is a way for them to restore an emotional bond as well as a formal link with the land of their ancestors, but also to search for better opportunities in Italy and in Europe.Keywords: Youngs. Citizenship. Migrations. Transnational networks.JÓVENES BRASILEÑOS, DESCENDIENTES DE ITALIANOS: relaciones transnacionales y sentido de la doble ciudadaníaResumen: Este artículo presenta los resultados de una investigación cualitativa, que ha tenido el objetivo principal de recoger algunas biografías de jóvenes brasileños, descendientes de italianos, con ciudadanía italiana o en espera de obtenerla, sino también de regreso o en espera de la partida hacia Italia. El análisis ofrece una exploración de una moltitud de sentidos, instrumentales y simbólicos, de la ciudadanía y profundiza la relación de los oriundi con el país de sus ancestros: por una parte, los jóvenes entrevistados se colocan en un "mercado de la ciudadanía", administrado por expertos más o menos eficientes y honestos, que se proponen lograr la documentación necesaria a la adquisición de la ciudadanía, vendiendo a precios altos el "sueño italiano". Por la otra, ellos miran al viaje hacia Italia como a un recorrido para encontrar sus orígenes, acompañados por la memoria y los recuerdos familiares, facilitados en la movilidad gracias a las redes transnacionales de familiares y conocidos. A través del caso examinado, se ve que las migraciones nunca son definitivas, sino viajes de ida y vuelta: el recorrido hacia Italia de estos jóvenes representa un camino inverso respecto a lo de los abuelos y bisabuelos que han llegado en pasado a Brasil y caracteriza la trayectoria de personas que, en el mismo tiempo, reclaman una relación afectiva y formal con la tierra de los ancestros, pero buscan también mejores oportunidades de vida en Italia y Europa.Palabras clave: Jóvenes. Ciudadanía. Migraciones. Redes transnacionales.

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