scholarly journals Spatial monitoring of urban growth of Mansoura City, Egypt

2020 ◽  
Vol 15 (4) ◽  
pp. 536-542
Author(s):  
Ibrahim Rizk Hegazy ◽  
Mansour Rifaat Helmi
Keyword(s):  
Remote Sensing ◽  
Information System ◽  
Urban Growth ◽  
Spatial Transformation ◽  
Landsat Images ◽  
The Past ◽  
Global Trend ◽  
Total Growth ◽  
Planning Strategies ◽  
The City

Abstract Urbanization is a global trend determined primarily by excessive population growth, particularly in the developing countries such as Egypt. The configuration and boundaries of urbanization and their model can be observed at a distance of space and time. In this research, geographic information system and remote sensing were used to analyze urbanization and trends in the past 30 years of Mansoura City, which is one of the largest medium-sized cities in Egypt. Four Landsat images, obtained in 1985, 1995, 2005 and 2015, were adjusted and compared using the ArcGIS software. The classified images were analyzed to determine urbanization trends in Mansoura city during the three periods 1985–1995, 1995–2005 and 2005–2015. The results of the change disclosure showed areas and trends in urbanization. The urban area has grown by approximately five times over 30 years. The results showed that the eastern direction was predominant during the periods (1985–1995) and (1995–2005) with 53 and 53% of the city total growth, respectively. During the period (2005–2015), the northern trend was dominant with 38% of the city total growth. This research promotes future urban planning strategies by evaluating temporal spatial transformation and urbanization trends.

scholarly journals Fenomena Urbanisasi: Transformasi spasial di Kawasan Pinggiran Kabupaten Sidoarjo

2020 ◽  
Vol 22 (3) ◽  
pp. 393-399
Author(s):  
Siti Nuurlaily Rukmana ◽  
Moch Shofwan
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Information System ◽  
Land Use Change ◽  
Urban Transformation ◽  
Spatial Transformation ◽  
Analysis Technique ◽  
The City

The phenomenon of urban transformation also occurs in Sidoarjo Regency which is located around the city of Surabaya. Its evidence is the expansion of built up  area in several districts like Krian district. The aims of this resech are analyzing the spatial transformation in term of land use change and evaluating the percentage of land use that it is accordance with spatial document policy. The analysis technique use Geogrphical Information System and Remote Sensing then proceed with descriptive evaluative. The result of this research can be seen that the transformation of built up area since 1995-2018 is 5,23% while those that are not accordance with spatial documen are 7,63%.

scholarly journals POLA PERKEMBANGAN RUANG DI KABUPATEN SEMARANG DENGAN MEMANFAATKAN DATA CITRA LANDSAT

2017 ◽  
Vol 5 (1) ◽  
pp. 58
Author(s):  
Pangi Pangi ◽  
Muharar Ramadhan ◽  
Khristiana Dwi Astuti ◽  
Intan Muning Harjanti ◽  
Reny Yesiana
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Urban Growth ◽  
Landsat Images ◽  
Toll Road ◽  
Remote Sensing Technology ◽  
Central Java ◽  
Sensing Technology ◽  
Controlling Mechanism ◽  
The City

The development of the city is influenced by the growth on the physical, economic, and social activities in the city. In the case of Semarang Regency, this development is included in the category fairly fast, particularly after the opening of toll road Semarang-Bawen. By utilizing remote sensing technology and satellite imagery, the pattern of these developments can be mapped and analyzed. The purpose of this study was to identify the pattern of development of space in Semarang Regency by using multitemporal Landsat images. The application of these images can be a mean of monitoring and controlling mechanism of the urban growth in the fast growing city in Central Java, such as in Semarang Regency. Hence, the focus of this analysis is on data of built up area. During the period of 43 years (1972 - 2015) land use change that occurred in the district of Semarang had increased for about 13,000 Ha or an average of 300 ha/year. The biggest changes are located in the Tengaran, Susukan and Bergas sub district that grow more than 20 ha / year. 

scholarly journals Rapid Urban Expansion and Its Implications on Geomorphology: A Remote Sensing and GIS Based Study

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
S. N. Mohapatra ◽  
Padmini Pani ◽  
Monika Sharma
Keyword(s):  
Remote Sensing ◽  
Growth Rate ◽  
Urban Growth ◽  
Anthropogenic Activities ◽  
Urban Expansion ◽  
Central India ◽  
Remote Sensing And Gis ◽  
Landsat Images ◽  
Geomorphic Features ◽  
The City

Topography, vegetation, climate, water table, and even the anthropogenic activities all are affected by urban growth through diverse mechanisms. The present study focuses on the implications of urban expansion on geomorphology in the historical city of Gwalior in central India. The expansion of urban area has been quantified by deriving data for four decades (1972–2013) from the Landsat images. The results show that the urban built-up area has increased by 08.48 sq. km during the first eighteen years (1972–1990) which has increased to 16.28 sq. km during the next sixteen years (1990–2006). The built-up area has gone up to 23.19 sq. km in the next seven years (2006–2013). Overall during the last 40 years the growth of the urban built-up is nearly three times of the built-up areas in 1972. The average decadal growth rate of population is 27.28 percent while that of built-up land is 36.29 percent. The construction activities have affected important geomorphic features such pediplain, buried pediplain, residual hills, and denudational hills. It was concluded that, instead of shortsighted urban development, proper measures should be taken in accordance with scientific planning for the urban expansion of the city in the future.

scholarly journals Understanding Urban Growth in Beijing-Tianjin-Hebei Region over the Past 100 Years Using Old Maps and Landsat Data

2021 ◽  
Vol 13 (16) ◽  
pp. 3264 ◽  
Author(s):  
Shuang Li ◽  
Zhongqiu Sun ◽  
Yafei Wang ◽  
Yuxia Wang
Keyword(s):  
Remote Sensing ◽  
Urban Area ◽  
Spatial Data ◽  
Urban Expansion ◽  
Remote Sensing Images ◽  
The Past ◽  
Old Maps ◽  
The World ◽  
The City

Studying urban expansion from a longer-term perspective is of great significance to obtain an in-depth understanding of the process of urbanization. Remote sensing data are mostly selected to investigate the long-term expansion of cities. In this study, we selected the world-class urban agglomeration of Beijing-Tianjin-Hebei (BTH) as the study area, and then discussed how to make full use of multi-source, multi-category, and multi-temporal spatial data (old maps and remote sensing images) to study long-term urbanization. Through this study, we addressed three questions: (1) How much has the urban area in BTH expanded in the past 100 years? (2) How did the urban area expand in the past century? (3) What factors or important historical events have changed the development of cities with different functions? By comprehensively using urban spatial data, such as old maps and remote sensing images, geo-referencing them, and extracting built-up area information, a long-term series of urban built-up areas in the BTH region can be obtained. Results show the following: (1) There was clear evidence of dramatic urban expansion in this area, and the total built-up area had increased by 55.585 times, from 126.181 km2 to 7013.832 km2. (2) Continuous outward expansion has always been the main trend, while the compactness of the built-up land within the city is constantly decreasing and the complexity of the city boundary is increasing. (3) Cities in BTH were mostly formed through the construction of city walls during the Ming and Qing dynasties, and the expansion process was mostly highly related to important political events, traffic development, and other factors. In summary, the BTH area, similarly to China and most regions of the world, has experienced rapid urbanization and the history of such ancient cities should be further preserved with the combined use of old maps.

scholarly journals SPATIAL DETERMINISM AND TERRITORIAL PUBLIC ACTION IN FRANCE: CHALLENGES AND EVOLUTIONS

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Grégory BUSQUET
Keyword(s):  
Point Of View ◽  
Theoretical Point ◽  
Spatial Transformation ◽  
The Past ◽  
Urban Narrative ◽  
The People ◽  
Strategic Approach ◽  
Urban Project ◽  
The City

This article proposes a theoretical point of view in order to show the importance of the collective memory and the urban narrative in the strategic approach of the urban project. The capacity of a municipality to build a local narrative joining the past, the memory and the project, is examined in the second part of the article, in a case study of a collectivity confronted with the project of the Grand Paris and strong socio-spatial transformation since 1950. The conclusions of thirty deep interviews, conducted on the people involved in the city organization allow to differentiate legitimated and rejected places in the spaces of remembering, and the difficulties of this kind of municipalities to be pro active in the Grand Paris project.

scholarly journals Spatio-temporal Analysis of Urban Growth and Its Effects on Wetlands in Rwanda: The Case of Rwampara Wetland in the City of Kigali

2020 ◽  
Vol 24 (9) ◽  
pp. 1495-1501
Author(s):  
G. Rwanyiziri ◽  
C. Kayitesi ◽  
M. Mugabowindekwe ◽  
R.V. Byizigiro ◽  
E. Muyombano ◽  
...  
Keyword(s):  
Urban Growth ◽  
Wetland Management ◽  
Temporal Analysis ◽  
High Population ◽  
Central Administration ◽  
Structured Interviews ◽  
Landsat Images ◽  
Spatio Temporal ◽  
Wetland Resources ◽  
The City

This study aimed at analyzing the spatio-temporal patterns of urban growth and its effects on Rwampara wetland, located in the City of Kigali,  Rwanda. First, the study was based on the application of remote sensing technology, where 4 Landsat images (1987, 1999, 2009 & 2018) were  classified using maximum likelihood classification algorithm. This helped in analyzing the Land Use and Land Cover (LULC) trends in the study area. Secondly, it used the existing LULC data for the years 1990, 2000, 2010 and 2018 in order to investigate the overall changes in LULC in Kigali City. Finally, semi-structured interviews were used to collect data from local people and decision-makers about their past and future management strategies of Rwampara wetland. In this regard, 30 local communities (mainly natives from the study area), 15 local government authorities at sector and district levels as well as 4 senior government authorities in the central administration were interviewed. The findings revealed that over the past 4 decades, urban growth in Kigali City has rapidly increased at the expense of resource degradation in Rwampara wetland. Specifically, there has been an increase of about 77% of the built-up area over the last 31 years (1987-2018) which has led to the decrease of the wetland surface area from 24 ha in 1987 to only 7.7 ha in 2018. The results also revealed that demographic factors (i.e. a high population growth rate and high population  densities) were mainly responsible for urban growth and degradation of wetland resources in the area under investigation. Keywords: urban growth, wetland, wetland resources, wetland degradation, wetland management

scholarly journals Developing an USACE method to rehabilitate Hour-al-Azim marsh and dust management

2021 ◽  
Author(s):  
Ramin Gorji Shani ◽  
Gholam-Abbas Barani
Keyword(s):  
Remote Sensing ◽  
Information System ◽  
Geographical Information System ◽  
Water Surface ◽  
Focal Point ◽  
Free Water ◽  
Geographical Information ◽  
Average Depth ◽  
The Past ◽  
Hydrological Stress

Abstract Hour-al-Azim marsh is one of the most significant wetlands of the Mesopotamia watershed. In the past few years, severe environmental and hydrological stress have caused the loss of a large part of its area and its bed has become the largest focal point of haze in the southwestern of Iran. Determining delineation is one of the most important and necessary measures to protect a wetland's ecosystem and, in this study, delineation was determined using the USACE-R-G method. This method is a combination of ecological and hydrological criteria with a Remote Sensing and Geographical Information System. The results showed that under the first scenario the marsh is about 3,279 km2 which about 882 square kilometers constitute free-water surface and its average depth is 2.4 meters. In the second scenario, these numbers were estimated to be 1,619 km2 with an average depth of 2.7 meters. Moreover, the area of the haze focus is about 1,659 km2. As well as this, under these conditions the amount of water required to submerge the marsh is 7.9 in the first scenario and 4.4 billion cubic meters in the second one.

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