scholarly journals Pemodelan Prediksi Banjir Kota Medan Dengan Menggunakan Sistem Informasi Geografis

2019 ◽  
Vol 8 (1) ◽  
pp. 19
Author(s):  
M S Roganda
Keyword(s):  
Rainfall Intensity ◽  
Flood Hazard ◽  
Middle Part ◽  
Flood Inundation ◽  
Flood Modeling ◽  
Analysis Technique ◽  
Study Techniques ◽  
The Impact ◽  
The City

This study aims to (1) Determine the results of inundation in Medan based on the scenario of rainfall intensity <60 mm / day and> 60 mm / day. (2) Determine the level of flood hazard based on flood inundation scenarios of rainfall intensity <60 mm / day and> 60 mm / day conducted in Medan City. (3) Determine the impact caused by the flooding based on interpretation techniques from the results of flood modeling conducted in Medan City. Data collection techniques used in this study are documentary study techniques. The data analysis technique was carried out with three stages, including (1) Determining the overflow results. (2) Determine the classification of flood hazard levels. (3) Identifying areas that affect flood hazard areas per district. The results in this study are (1) based on the scenario of rainfall intensity <60 mm / day, there is no inundation flooding, whereas based on the scenario of rainfall intensity> 60 mm / day shows several points of flood inundation especially in the northern part of Medan City. (2) flood hazard based on flood inundation scenario results in rainfall intensity <60 mm / day does not pose any danger at all whereas flood hazard based on flood inundation results rainfall intensity scenario> 60 mm / day shows that in the northern part there are two dominant classes namely class high and low, in the middle part of the city the dominant class terrain is medium and in the southern part of Medan City the dominance by medium and low classes. (3) Based on interpretation techniques carried out on the Flood Impact Map Based on Districts in Medan, it can be seen that several districts in Medan have several flood hazard classes such as low, medium, and high.Keywords: Medan City, Rain, Flood Modeling AbstrakPenelitian ini bertujuan untuk (1) Mengetahui hasil banjir genangan di Kota Medan berdasarkan skenario intensitas curah hujan < 60 mm/hari dan > 60 mm/hari. (2) Mengetahui tingkat bahaya banjir berdasarkan hasil banjir genangan skenario intensitas curah hujan < 60 mm/hari dan > 60 mm/hari yang dilakukan di Kota Medan. (3) Mengetahui dampak yang disebabkan banjir berdasarkan teknik interpretasi dari hasil pemodelan banjir yang dilakukan di Kota Medan. Teknik pengumpulan data yang digunakan dalam penelitian ini adalah teknik studi dokumenter. Teknik analisis data dilakukan dengan tiga tahapan diantaranya (1) Menentukan hasil luapan. (2) Menentukan klasifikasi tingkat bahaya banjir. (3) Mengidentifikasi wilayah-wilayah yang berdampak ke daerah bahaya banjir per kecamatan. Hasil dalam penelitian ini adalah (1) berdasarkan skenario intensitas curah hujan < 60 mm/hari tidak terjadi banjir genangan sedangkan berdasarkan skenario intensitas curah hujan > 60 mm/hari menunjukkan beberapa titik terjadi genangan banjir terutama di bagian utara Kota Medan. (2) bahaya banjir berdasarkan hasil banjir genangan skenario intensitas curah hujan < 60 mm/hari  tidak menimbulkan bahaya sama sekali sedangkan bahaya banjir berdasarkan hasil banjir genangan skenario intensitas curah hujan > 60 mm/hari  memperlihatkan  pada bagian utara ada dua kelas yang dominan yaitu kelas tinggi dan rendah, pada bagian tengah kota medan kelas yang dominan adalah sedang dan di bagian selatan Kota Medan dominasi oleh kelas sedang dan rendah. (3) Berdasarkan teknik interpretasi yang dilakukan pada Peta Dampak Banjir Berdasarkan Kecamatan Di Kota Medan terlihat bahwa beberapa kecamatan di Kota Medan memiliki beberapa kelas bahaya banjir seperti rendah, sedang dan tinggi.Kata Kunci : Kota Medan, Hujan, Pemodelan Banjir

scholarly journals Dampak Kabut Asap terhadap Kinerja Usaha Pedagang Pasar di Kota Rengat Kabupaten Indragiri Hulu Provinsi Riau

2020 ◽  
Vol 5 (1) ◽  
pp. 167
Author(s):  
Ivalaina Astarina ◽  
Syahmardi Yacob ◽  
Febblina Daryanes ◽  
Khusnul Fikri ◽  
Ahmad Ramadhan
Keyword(s):  
Weather Conditions ◽  
Measurement Scales ◽  
Descriptive Research ◽  
Learning Tasks ◽  
Analysis Technique ◽  
Sample Count ◽  
Education Of Students ◽  
The Impact ◽  
The City

The purpose of the research in IIS to know and analyze the impact of the haze on the performance of business traders market. This research belongs to the type of descriptive research. Descriptive research that aims to describe, describe and analyse existing events and aims to obtain information about the impact of haze in accordance with existing theories. Data collection method through dissemination of questionnaires and questions answered. The population in this study is the market merchant of Rengat City. Determination of sample count of 100 respondents/market trader. The data analysis technique used to analyze this research data is to be descriptively used statistical analysis in the form of a percentage formula because its purpose is to see the trend of the indicators of each variable and the research is only aimed to describe the reality in the field is not to be seen relations or comparisons. In this study, researchers used Likert measurement scales. The Likert scale relates to a statement about a person's attitude toward something.  The results of this study can be concluded that: (1) The health of the market traders of the city of Rengat is interrupted because of the thick haze that affects the trading activity itself. (2) The income of market traders in the city of Rengat is decreasing due to declining people's desire to shop in the market due to the worry of being exposed to haze which can cause ISPA disease and other health disorders. (3) The market environment of the Rengat is affected by the smoke of the daily Trader's life. Usually traders have already held their trades starting from the beginning of the morning, because the haze of most traders often come late to the market (overdo). (3) The education of students from the family of market traders in the city of Rengat is also affected by the haze so that it must be dissolved until normal weather conditions are back. Because of this, students have a lot of missed material and have to force themselves to pursue the lag by adding hours and learning tasks that are much beyond the student's thinking capacity.

scholarly journals Impact of Mui Halal Labels on Volume of Sales of Holland Bakery in Manado City

2019 ◽  
Vol 3 (2) ◽  
Author(s):  
Mawarni Safitri Henaulu
Keyword(s):  
Quantitative Research ◽  
Primary Data ◽  
Sales Volume ◽  
Summary Table ◽  
Correlation Test ◽  
Normality Test ◽  
Analysis Technique ◽  
Independent Variable ◽  
The Impact ◽  
The City

AbstractThis research examines the impact of MUI's halal label on the sales volume of Holland bakery in the city of Manado. The main problem in this study is how much influence the halal label has on sales volume. The objective achieved in this study was to find out the impact of MUI's halal label on Holland Bakery's sales volume in the city of Manado. And provide recommendations to other food companies so that they can increase sales volume. This type of research is quantitative research. Data used in the study are primary data or data directly from respondents through questionnaires that are distributed in Holland Bakery in the city of Manado. As a population and a sample of consumers are Holland Bakery in the city of Manado. The data analysis technique used in this study is the normality test, hypothesis testing using product moment correlation test and simple linear regression test. After going through quantitative procedures.This study found that the halal label has an effect on sales volume as evidenced by the product moment correlation test. It is known that the correlation value between variables X and Y is 0.562> 0. So Ho is rejected and Ha is accepted. from the Model Summary table is 0.315 or around 31.5%. This means that the effect of the independent variable (Halal Label) on the dependent variable (Sales Volume) is 31.5%. Meanwhile, the remaining 68.5% (100-31.5 = 68.5%) are explained by other variables not examined in this study. Keywords: Halal Label, Sales Volume, Holland Bakery

scholarly journals A GIS-BASED PROCEDURE FOR MEASURING THE EFECTS OF THE BUILT ENVIRONMENT ON URBAN FLASH FLOODS

2016 ◽  
Vol 11 (3) ◽  
pp. 110-125 ◽  
Author(s):  
Yan Li ◽  
Chunlu Liu
Keyword(s):  
Land Use ◽  
Built Environment ◽  
Urban Areas ◽  
Flood Hazard ◽  
Land Use Changes ◽  
Flash Floods ◽  
Flood Inundation ◽  
Storm Events ◽  
Severe Problem ◽  
The Impact

Urban flooding has been a severe problem for many cities around the world as it remains one of the greatest threats to the property and safety of human communities. In Australia, it is seen as the most expensive natural hazard. However, urban areas that are impervious to rainwater have been sharply increasing owing to booming construction activities and rapid urbanisation. The change in the built environment may cause more frequent and longer duration of flooding in floodprone urban regions. Thus, the flood inundation issue associated with the effects of land uses needs to be explored and developed. This research constructs a framework for modelling urban flood inundation. Different rainfall events are then designed for examining the impact on flash floods generated by land-use changes. Measurement is formulated for changes of topographical features over a real time series. Geographic Information System (GIS) technologies are then utilised to visualise the effects of land-use changes on flood inundation under different types of storms. Based on a community-based case study, the results reveal that the built environment leads to varying degrees of aggravation of urban flash floods with different storm events and a few rainwater storage units may slightly mitigate flooding extents under different storm conditions. Hence, it is recommended that the outcomes of this study could be applied to flood assessment measures for urban development and the attained results could be utilised in government planning to raise awareness of flood hazard.

scholarly journals Transport system of megalopolis and its influence on the urban environment (the example of St. Petersburg)

2019 ◽  
Vol 97 ◽  
pp. 01026
Author(s):  
Tatiana Tereshkina ◽  
Natalia Verstina ◽  
Marina Treyman ◽  
Artyom Tereshkin
Keyword(s):  
Transport System ◽  
Smart City ◽  
Transport Systems ◽  
Motor Transport ◽  
Complex Development ◽  
Transport Complex ◽  
The Impact ◽  
The City ◽  
Transport Potential

The transport system of one of the largest megalopolises in Russia is analysed in the article, the assessment of its transport potential is carried out and the main problems of the transport complex development, which need to be solved within the implementation of the concept of the “smart” city in St. Petersburg are revealed. The classification of the environmental impacts of functioning of the city transport system is given and the characteristic of the most significant ecologic-and-economic problems of St. Petersburg, connected with the use of the motor transport, having a special impact on the urban economic environment is given. Technique for the assessment of the impact of motor transport on the environment of the megalopolis is offered by the authors and the calculation of the Green Avto Index, characterizing the ecological situation in the districts of Saint-Petersburg, which needs to be considered when planning the urban development and the organization of traffic flows are carried out. The international experience of the application of the “intellectual” transport systems, which use will allow to accelerate the process of the creation of the platform for transition to the “smart” city in the megalopolis is considered.

scholarly journals Kajian Etnobiologi Kelompok Etnik Dani: Bentuk Interaksi Masyarakat Dengan Taman Wisata Alam Gunung Meja, Manokwari, Papua Barat

2022 ◽  
Vol 20 (2) ◽  
pp. 231-241
Author(s):  
Tepinus Morip ◽  
Keliopas Krey ◽  
Freddy Pattiselanno
Keyword(s):  
Ethnic Group ◽  
Body Parts ◽  
Literature Study ◽  
Nature Tourism ◽  
Papua Barat ◽  
Study Techniques ◽  
The Impact ◽  
The City ◽  
Very High ◽  
Intended Use

Selain sebagai penyedia air bersih, potensi flora dan fauna Taman Wisata Alam Gunung Meja (TWA Gunung Meja), sangat menjanjikan. Karena letaknya yang mudah diakses serta lokasinya yang berada di dalam kota Manokwari, interaksi yang terjadi antara masyarakat dengan kawasan ini juga sangat tinggi dan berdampak terhadap potensi keanekaragaman hayatinya.  Penelitian ini bertujuan untuk mempelajari bentuk interaksi antara kelompok etnik Dani dengan TWA Gunung Meja serta merekam informasi etnobiologi mereka dan melakukan penilaian deskriptif dampak pemanfaatan terhadap kondisi lingkungan TWA Gunung Meja. Penelitian ini merupakan penelitian deskriptif dengan teknik observasi, wawancara dan studi kepustakaan dan semua hasil observasi dan wawancara yang diperoleh dalam penelitian ini dianalisis menggunakan statistik deskriptif. Pendekatan kontekstual digunakan untuk menjelaskan situasi di lapangan untuk melengkapi deskripsi lokasi penelitian. Hasil penelitian menunjukkan bahwa terdapat tujuh spesies tumbuhan dari enam famili dan enam spesies hewan dari enam famili dimanfaatkan oleh kelompok etnik Dani di kawasan TWA Gunung Meja. Tujuan pemanfaatannya bervariasi untuk kebutuhan sandang, pangan, energi dan pengobatan medis dan asesori budaya. Bagian tumbuhan yang dimanfaatkan berragam terdiri dari batang, ranting, dahan, daun, buah dan kulit, sedangkan daging, lemak, empedu, kulit, cakar dan taring adalah bagian tubuh hewan yang dimanfaatkan kelompok etnik Dani sesuai tujuan pemanfaatannya.ABSTRACTApart from being a provider of clean water, the potential of flora and fauna of the Gunung Meja Nature Tourism Park (TWA Gunung Meja) is very promising. Due to its easily accessible and its location within the city of Manokwari, the interaction that occurs between the community and this area is also very high and creates impact on its biodiversity potential. This study aims to study the form of interaction between the Dani ethnic group and TWA Gunung Meja as well as record their ethnobiological information. We conduct a descriptive assessment of the impact of utilization on the environmental conditions of TWA Gunung Meja. This research is a descriptive study with observation, interview and literature study techniques and all observations and interviews obtained in this study were analyzed using descriptive statistics. A contextual approach is used to explain the situation in the field to complete the description of the research location. The results showed that there were seven plant species from six families and six animal species from six families used by the Dani ethnic group in the TWA Gunung Meja area. The purpose of its use varies for the needs of clothing, food, energy and medical treatment and cultural accessories. The various parts of the plant used consist of stems, twigs, branches, leaves, fruit and skin, while meat, fat, gall, skin, claws and fangs are animal body parts used by the Dani ethnic group according to their intended use

scholarly journals Impact of Urban Growth and Changes in Land Use on River Flood Hazard in Villahermosa, Tabasco (Mexico)

Water ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 304 ◽  
Author(s):  
Omar Areu-Rangel ◽  
Luis Cea ◽  
Rosanna Bonasia ◽  
Victor Espinosa-Echavarria
Keyword(s):  
Land Use ◽  
Urban Growth ◽  
City Planning ◽  
Flood Hazard ◽  
Urban Expansion ◽  
Water Model ◽  
River Channels ◽  
Main River ◽  
The Impact ◽  
The City

The city of Villahermosa, a logistical center in the State of Tabasco’s economy, is affected by recurrent river floods. In this study, we analyzed the impact of two factors that are the most probable causes of this increase in flood hazard: changes in land use in the hydrological catchments upstream of the city, and the uncontrolled urbanization of the floodplains adjacent to the main river channels. Flood discharges for different return periods were evaluated, considering land uses of the catchments, both as they were in 1992 and as they are today. These flood discharges were then used in a 2D shallow water model to estimate the increase of water depths in the city from 1992 to the present day. To evaluate the influence of urban expansion on inundation levels, three future urbanization scenarios were proposed on the basis of the urban growth rate forecast for 2050. Results confirm that the change in land use in the hydrological catchments is the main factor that explains the increase in inundation events observed over recent years. This study also provides useful insights for future city planning that might help to minimize the flood impact on Villahermosa.

scholarly journals The What, Where, and Why of Airbnb Price Determinants

2018 ◽  
Vol 10 (12) ◽  
pp. 4596 ◽  
Author(s):  
V. Perez-Sanchez ◽  
Leticia Serrano-Estrada ◽  
Pablo Marti ◽  
Raul-Tomas Mora-Garcia
Keyword(s):  
Multivariable Analysis ◽  
Ordinary Least Squares ◽  
Current Debate ◽  
Hedonic Price ◽  
Regression Methods ◽  
Analysis Technique ◽  
Price Determinants ◽  
The Impact ◽  
The City ◽  
Historic Area

Breakthrough changes in the rental market have occurred with the introduction of peer-to-peer accommodation services such as Airbnb. This phenomenon is attracting tourists who contribute to the sustainability of local trade and the economic development of the city. This research enriches the current debate on the range of factors that influence Airbnb accommodation prices. To that end, a method was developed to understand the relationship between Airbnb accommodation attributes and listing prices; and to consider variables related to the properties’ location and surrounding urban environment, considering the touristic characteristics of the four Spanish Mediterranean Arc cities selected as case study. A multivariable analysis technique is used for estimating a hedonic price model that adopts the ordinary least squares and the quantile regression methods. The findings obtained for the impact of location on listing prices are contrary to previous studies. In fact, accommodation prices increase incrementally by 1.3% per kilometer from the tourist area, which in all four cases are situated in the historic area of the city. However, at the same time, accommodation prices decrease incrementally as distance from the coastline increases. Lastly, results related to how the listings’ accommodation, host, and advertising characteristics impact Airbnb prices concur with previous studies.

Pengaruh Tingkat Literasi Keuangan Syariah dan Kepercayaan Masyarakat terhadap Minat Menabung di Bank Syariah

2020 ◽  
Vol 3 (2) ◽  
pp. 140-153
Author(s):  
Resti Fadhilah Nurrohmah ◽  
Radia Purbayati
Keyword(s):  
Financial Literacy ◽  
Linear Regression Analysis ◽  
Public Trust ◽  
Multiple Linear Regression Analysis ◽  
Primary Data ◽  
Public Confidence ◽  
Islamic Banks ◽  
Variable Level ◽  
Analysis Technique ◽  
The City

The purpose of this study was to study the level of Islamic financial literacy and public confidence in the interest in saving in Islamic banks. The variables in this study are the level of Islamic financial literacy (X1), public trust (X2), and interest in saving (Y).The method of this study is descriptive quantitative approach. The data source of this study are primary data obtained by distributing questionnaires. Respondents taken are residents in the city of Bandung, with samples domiciled in the city of Bandung and at least 17 years old. The data analysis technique uses multiple linear regression analysis. The results showed that the variable level of islamic financial literacy and public trust has positive effect in the interest in saving in Islamic banks. The findings in this study provide a reference to Islamic banks, the level of literacy and public trust regarding interest in saving, therefore Islamic banks must socialize to the public.

The impact of a mega-event on city branding: The European Capital of Culture 2010 and the image of Istanbul

2013 ◽  
Vol 3 (1) ◽  
pp. 29-50 ◽  
Author(s):  
Evinç Doğan ◽  
Ibrahim Sirkeci
Keyword(s):  
Visual Analysis ◽  
Place Branding ◽  
World City ◽  
City Branding ◽  
City Image ◽  
European Capital Of Culture ◽  
National Boundaries ◽  
Symbolic Production ◽  
The Impact ◽  
The City

This study examines the ways in which the city image of Istanbul is re-created through the mega-events within the context of the European Capital of Culture (ECoC) 2010. Istanbul “took the stage” as one of the three ECoC cities (Essen for the Ruhr in Germany and Pécs in Hungary), where the urban spaces were projected as the theatre décor while residents and visitors became the spectators of the events. Organisers and agents of the ECoC 2010 seemed to rebrand Istanbul as a “world city” rather than a “European capital”. With a series of transnational connotations, this can be considered as part of an attempt to turn Istanbul to a global city. In this study we examine posters used during the ECoC 2010 to see whether this was evident in the promoted images of Istanbul. The research employs a hermeneutic approach in which representations, signs and language are the means of symbolic meaning, which is analysed through qualitative methods for the visual data (Visual Analysis Methods), namely Semiotics and Discourse Analysis. The analysed research material comes from a sample of posters released during the ECoC 2010 to promote 549 events throughout the year. Using stratified random sampling we have drawn 28 posters (5% of the total) reflecting the thematic groups of events in the ECoC 2010. Particular attention is also paid to the reflexivity of the researchers and researchers’ embeddedness to the object of research. The symbolic production and visual representation are therefore investigated firstly through the authoritative and historically constituted discourses in the making of Istanbul image and secondly through the orders of cultural consumption and mediatisation of culture through spectacular events. Hence enforcing a transnationalisation of the image of the city where the image appears to be almost stateless transcending the national boundaries. Findings and methodology used in this study can be useful in understanding similar cases and further research into the processes of city and place branding and image relationships. 

Urbanization of fauna on the example of marsh frog (Pelophylax ridibundus)

2015 ◽  
Vol 26 (3-4) ◽  
pp. 116-123
Author(s):  
A. P. Korzh ◽  
T. V. Zahovalko
Keyword(s):  
Urban Areas ◽  
Cognitive Modeling ◽  
Negative Impact ◽  
Natural Populations ◽  
Cellular Level ◽  
Anthropogenic Factors ◽  
Migration Routes ◽  
Corrective Effect ◽  
The Impact ◽  
The City

Recently, the number of published works devoted to the processes of synanthropization of fauna, is growing like an avalanche, which indicates the extreme urgency of this theme. In our view, the process of forming devices to coexist with human and the results of his life reflects the general tandency of the modern nature evolution. Urbanization is characteristic for such a specific group of animals like amphibians, the evidence of which are numerous literature data. Many researchers use this group to assess the bioindicative quality of the environment. For this aim a variety of indicators are used: from the cellular level of life of organization up to the species composition of the group in different territories. At the same time, the interpretation of the results is not always comparable for different areas and often have significantly different interpretations by experts. Urban environment, primarily due to the contamination is extremely aggressive to amphibians. As a consequence, the urban populations of amphibians may be a change in the demographic structure, affecting the reproductive ability of the population, the disappearance of the most sensitive species or individuals, resizing animals, the appearance of abnormalities in the development, etc. At the same time play an important amphibians in the ecosystems of cities, and some species in these conditions even feel relatively comfortable. Therefore, it is interesting to understand the mechanisms of self-sustaining populations of amphibians in urban environments. To assess the impact of natural and anthropogenic factors on the development of amphibian populations were used cognitive modeling using the program Vensim PLE. Cognitive map of the model for urban and suburban habitat conditions were the same. The differences concerned the strength of connections between individual factors (migration, fertility, pollution) and their orientation. In general, factors like pollution, parasites, predators had negative impact on the population, reducing its number. The birth rate, food and migration contributed to raising number of individuals. Some of the factors affected on the strength to of each other as well: the majority of the factors affected the structure of the population, had an influence on the fertility. Thanks to it the model reflects the additive effect of complex of factors on the subsequent status of the population. Proposed and analyzed four scenarios differing strength and duration of exposure. In the first scenario, a one-time contamination occurs and not subsequently repeated. The second and third scenario assumes half board contamination, 1 year (2 scenario) and two years (scenario 3). In the fourth scenario, the pollution affected the population of amphibians constantly. In accordance with the results of simulation, much weaker than the natural populations respond to pollution - have them as an intensive population growth and its disappearance at constant pollution is slow. Changes to other parameters of the model showed that this pollution is the decisive factor -only the constant action leads to a lethal outcome for the populations. All other components of the model have a corrective effect on the population dynamics, without changing its underlying trand. In urban areas due to the heavy impact of pollution maintaining the population is only possible thanks to the migration process – the constant replenishment of diminishing micropopulations of natural reserves. This confirms the assumption that the form of existence metapopulations lake frog in the city. In order to maintain the number of amphibians in urban areas at a high level it is necessary to maintain existing migration routes and the creation of new ones. Insular nature of the placement of suitable habitats in urban areas causes the metapopulation structure of the types of urbanists. Therefore, the process of urbanization is much easier for those species whicht are capable of migration in conditions of city. In the initial stages of settling the city micropopulationis formed by selective mortality of the most susceptible individuals to adverse effects. In future, maintaining the categories of individuals is provided mainly due to migration processes metapopulisation form of the species of existence is supported). It should be noted that the changes in the previous levels are always saved in future. In the case of reorganizations of individuals we of morphology can assume the existence of extremely adverse environmental conditions that threaten the extinction of the micropopulations. 

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