Mapping Regional Deformation Bands Zones Using an Aerial Photographs and Field Data – A Case Study from SW Libya

Author(s):  
M. Koprianiuk ◽  
M. Klos
Author(s):  
Felippe Fernandes ◽  
Cristiano Poleto

The Mãe d`Água reservoir is the mouth of four streams, corresponding to an area of 352 ha and is located in the Vale Campus of the Federal University of Rio Grande do Sul. The study area is currently predominantly characterized by a residential occupation, with environmental liabilities coming from diffuse sources. The application of the methodology for computational modeling in the Mãe d'Água reservoir, inferring about the useful volume of the project in 1962, useful volume in 2014, and the silting volume was developed with the aid of the following software: AutoCAD 2018, AutoCAD Civil 3D 2018, and Google Earth which specialize in the field of geoprocessing and guidelines for the calculations that use as base the data regarding the survey and processing of field data. Two types of remote sensing products were used to evaluate the evolution of urbanization in the study area: aerial photographs and satellite images which were integrated in a geographic database. Through the results, it was possible to verify that the silting volume occupies approximately 44% of the useful volume of the reservoir, the urbanization rate has growth trends, and, 88.42% of the river basin was urbanized in 2014. Thus, it represents a spatial distribution and establishes correlations between sedimentation studies over the last five decades.


1998 ◽  
Vol 37 (1) ◽  
pp. 155-162
Author(s):  
Flemming Schlütter ◽  
Kjeld Schaarup-Jensen

Increased knowledge of the processes which govern the transport of solids in sewers is necessary in order to develop more reliable and applicable sediment transport models for sewer systems. Proper validation of these are essential. For that purpose thorough field measurements are imperative. This paper renders initial results obtained in an ongoing case study of a Danish combined sewer system in Frejlev, a small town southwest of Aalborg, Denmark. Field data are presented concerning estimation of the sediment transport during dry weather. Finally, considerations on how to approach numerical modelling is made based on numerical simulations using MOUSE TRAP (DHI 1993).


Geosciences ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 330
Author(s):  
Bryan A. Oakley

Napatree Point, an isolated barrier in southern Rhode Island, provides a case study of barrier spit migration via storm driven overwash and washover fan migration. Documented shoreline changes using historical surveys and vertical aerial photographs show that the barrier had little in the way of net change in position between 1883 and 1939, including the impact of the 1938 hurricane. The barrier retreated rapidly between 1945 and 1975, driven by both tropical and extra-tropical storms. The shoreline position has been largely static since 1975. The removal of the foredune during the 1938 hurricane facilitated landward shoreline migration in subsequent lower intensity storms. Dune recovery following the 1962 Ash Wednesday storm has been allowed due to limited overwash and barrier migration over the last several decades. Shoreline change rates during the period from 1945–1975 were more than double the rate of shoreline change between 1939 and 2014 and triple the rate between 1883 and 2014, exceeding the positional uncertainty of these shoreline pairs. The long-term shoreline change rates used to calculate coastal setbacks in Rhode Island likely underestimate the potential for rapid shoreline retreat over shorter time periods, particularly in a cluster of storm activity. While sea-level rise has increased since 1975, the barrier has not migrated, highlighting the importance of storms in barrier migration.


2021 ◽  
Vol 905 (1) ◽  
pp. 012083
Author(s):  
D T Ardianto ◽  
S Mataram

Abstract The Javanese tradition is manifested in various forms, one of which is Merti Desa Tambakbayan tradition in Tambakboyo Village, Tawangsari District, Sukoharjo Regency. This annual tradition is a cultural heritage that help to maintain environmental balance. This study seeks to describe the philanthropic and ecological values of Merti Desa Tambakbayan tradition. This research was a case study with traditional event as the object. The data sources were the Merti Desa Tambakbayan events, documents, and interview results with informants. The obtained field data showed the existence of philanthropic and ecological values in Tambakboyo community. These values can be seen from the traditions of having feast and exchanging meals together, and joint activities to clean up the environment around the village regardless of social status. These attitudes are essentials, especially when some members of the society are experiencing economic difficulties due to the ongoing Covid-19 pandemic.


2021 ◽  
Vol 34 (04) ◽  
pp. 1231-1242
Author(s):  
Narjes Ghaempanah ◽  
Mohammad-Taghi Rahnamaei

New towns and cities are proposed as the places for absorbing the population overflow and limiting the population growth in metropolises. In Iran, these towns and cities are built very close to the metropolises, and gradually, they are being used only as dormitories. The new town of Pardisan is built 13 kilometers southwest of Qom as the largest new town of the urban district of Qom in order to organize the residence system and absorb the population overflow of the metropolis of Qom and reduce its problems. This paper studies the function of the Pardisan new town as the absorber of the population overflow of Qom and also the residents’ satisfaction with this town. The research method adopted by this study is based on the library, documentary, and field data, and also interviews and collection of data by questionnaires and TOPSIS model. The results of this research indicate that many of the families living in the Pardisan town constitute the population overflow of the metropolis of Qom; Among the most important reasons for the migration of families to the Pardisan town is the low cost of land and residence, and 4.67 percent of the residents do not like to live in this town. This unsuccess is mostly due to lack of job and activity in this town, and therefore, the residents are less satisfied with the town.


2019 ◽  
Author(s):  
M. Vanić ◽  
A. Saprygin ◽  
S. Milojević ◽  
I. Bogatyrev ◽  
A. Polivakho

2010 ◽  
Vol 10 (4) ◽  
pp. 881-894 ◽  
Author(s):  
F. Prettenthaler ◽  
P. Amrusch ◽  
C. Habsburg-Lothringen

Abstract. To date, in Austria no empirical assessment of absolute damage curves has been realized on the basis of detailed information on flooded buildings due to a dam breach, presumably because of the lack of data. This paper tries to fill this gap by estimating an absolute flood-damage curve, based on data of a recent flood event in Austria in 2006. First, a concise analysis of the case study area is conducted, i.e., the maximum damage potential is identified by using raster-based GIS. Thereafter, previous literature findings on existing flood-damage functions are considered in order to determine a volume-water damage function that can be used for further flood damage assessment. Finally, the flood damage function is cross validated and applied in prediction of damage potential in the study area. For future development of the estimated flood damage curve, and to aid more general use, we propose verification against field data on damage caused by natural waves in rivers.


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