Automated hydrologic analysis of ungauged basins in Serbia using open source software

2014 ◽  
Vol 9 (4) ◽  
pp. 445-449
Author(s):  
N. Zlatanović ◽  
M. Stefanović ◽  
M. Milojević ◽  
J. Čotrić

Drainage basins are for the most part ungauged or poorly gauged not only in Serbia but in most parts of the world, usually due to insufficient funds, but also the decommission of river gauges in upland catchments to focus on downstream areas which are more populated. Design discharges are needed for these rivers where no streamflow data are available, for various applications. Examples include river training works for flood protection measures or erosion control, design of culverts, water supply facilities, small hydropower plants, etc. This study deals with the application of freely available and open source software and datasets for automating rainfall–runoff analysis of ungauged basins, applying geographical information systems techniques and programming to methodologies currently in use in hydrological practice. The geomorphometric module was tested on more than 100 catchments throughout Serbia (using a digital terrain model) and compared to manually calculated values (using topographic maps). The discharge estimation module was tested on 21 catchments where data were available and compared to results obtained by frequency analysis of measured discharges. The geomorphometric module of the calculation system showed excellent results, saving a great deal of time that would otherwise have been spent on manual processing of geospatial data, while the discharge estimation module showed a need for improved hydrological models.

2010 ◽  
Vol 1 (1) ◽  
pp. 87 ◽  
Author(s):  
Francisco R. Feito Higueruela ◽  
Rafael J. Segura Sánchez

<p>Applications of Geographical Information Systems on several Archeology fields have been increasing during the last years. Recent avances in these technologies make possible to work with more realistic 3D models. In this paper we introduce a new paradigm for this system, the GIS Thetrahedron, in which we define the fundamental elements of GIS, in order to provide a better understanding of their capabilities. At the same time the basic 3D characteristics of some comercial and open source software are described, as well as the application to some samples on archeological researchs</p>


Author(s):  
Yasuhisa Kondo ◽  
Takehiro Miki ◽  
Taichi Kuronuma ◽  
Yuichi S. Hayakawa ◽  
Kyoko Kataoka ◽  
...  

Purpose – The purpose of this paper is to present a concurrent implementation of sustainable inventory for the UNESCO World Heritage sites of Bat, Al-Khutm and Al-Ayn in the interior of Oman. Design/methodology/approach – A digital heritage inventory (DHI) was developed through an action research to realize demands of the local agent and to co-design the solution. The Ministry of Heritage and Culture of Oman, the local agent, demanded to have archaeological information of the sites shared with foreign expeditions, which had worked at the sites for decades, for efficient heritage management, scientific research, outreach, and education. To this end, the Bat Digital Heritage Inventory (BatDHI) was implemented by a combination of network-access-ready database application, open source geographical information systems, and a web-based map service to incorporate and visualize previous works, which were concurrently cross-checked and updated by ground-truth surveys. Findings – The online inventory made it possible to update information during archaeological fieldwork in real time and accelerated the decision-making process in heritage management by prompt data updates and visualization. Research limitations/implications – The DHI is extendable for other sites or regions. It should also be considered to install Arches, an open-source suite of digital heritage inventories. Practical implications – The BatDHI was implemented through the action research mentioned in the design/methodology/approach section and yielded the implications mentioned in the findings section. Originality/value – This paper is a challenging application of transdisciplinary approach to the sustainable heritage management, in which researchers and societal stakeholders collaborate for co-design of research agendas, co-production of knowledge, and co-dissemination of outcomes.


Sensors ◽  
2019 ◽  
Vol 19 (4) ◽  
pp. 953 ◽  
Author(s):  
Nicolas Antigny ◽  
Hideaki Uchiyama ◽  
Myriam Servières ◽  
Valérie Renaudin ◽  
Diego Thomas ◽  
...  

The urban environments represent challenging areas for handheld device pose estimation (i.e., 3D position and 3D orientation) in large displacements. It is even more challenging with low-cost sensors and computational resources that are available in pedestrian mobile devices (i.e., monocular camera and Inertial Measurement Unit). To address these challenges, we propose a continuous pose estimation based on monocular Visual Odometry. To solve the scale ambiguity and suppress the scale drift, an adaptive pedestrian step lengths estimation is used for the displacements on the horizontal plane. To complete the estimation, a handheld equipment height model, with respect to the Digital Terrain Model contained in Geographical Information Systems, is used for the displacement on the vertical axis. In addition, an accurate pose estimation based on the recognition of known objects is punctually used to correct the pose estimate and reset the monocular Visual Odometry. To validate the benefit of our framework, experimental data have been collected on a 0.7 km pedestrian path in an urban environment for various people. Thus, the proposed solution allows to achieve a positioning error of 1.6–7.5% of the walked distance, and confirms the benefit of the use of an adaptive step length compared to the use of a fixed-step length.


Geomatics ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 246-278
Author(s):  
Lia Duarte ◽  
Ana Cláudia Teodoro

Background: The advent of Geographical Information Systems (GIS) has changed the way people think and interact with the world. The main objectives of this paper are: (i) to provide an overview of 10 years (2010–2020) regarding the creation/development of GIS open-source applications; and (ii) to evaluate the GIS open-source plugins for environmental science. Methods: In the first objective, we evaluate the publications regarding the development of GIS open-source geospatial software in the last 10 years, considering desktop, web GIS and mobile applications, so that we can analyze the impact of this type of application for different research areas. In the second objective, we analyze the development of GIS open-source applications in the field of environmental sciences (with more focus on QGIS plugins) in the last 10 years and discuss the applicability and usability of these GIS solutions in different environmental domains. A bibliometric analysis was performed using Web of Science database and VOSViewer software. Conclusions: We concluded that, in general, the development of GIS open-source applications has increased in the last 10 years, especially GIS mobile applications, since the big data and Internet of Things (IoT) era, which was expected given the new advanced technologies available in every area, especially in GIS.


Author(s):  
Stefano De Paoli ◽  
Maurizio Teli ◽  
Vincenzo D'Andrea

How do licenses participate in Free and Open Source Software (FLOSS) community life? This paper aims at answering this question. Despite the dynamic character of FLOSS development, the sociological debate has taken for granted a static perspective of communities organized around a restricted range of social values and rules. Criticizing the main sociological approaches to FLOSS community, we assert, on the contrary, that the FLOSS free/open character shall not be assumed a priori to explain the coordination efforts in communities. Focusing on the role of software licenses in everyday FLOSS communities activities, considered as boundary objects, we observe that controversies and conflicts around licenses are fundamental parts of communities life. Basing our researches on two different projects, the Geographical Information System GRASS and the OpenSolaris™ Operating System, we show how the construction of the FLOSS free/open character takes place inside the debates about licenses.


2021 ◽  
Vol 2 (2) ◽  
pp. 59-65
Author(s):  
Nur Fazheera Algadri ◽  
Arnita Irianti ◽  
Dian Megah Sari

The spread of Covid-19 is very fast, various efforts are being made to prevent the spread of Covid-19 and provide information about it. Especially in the area of ​​West Sulawesi Province, information about the development of Covid-19 can be accessed through a website that has been provided by the government, namely Covid Sulbar. There is a development of a Geographic information system for Covid-19 mapping with the implementation of Location based services and open source maps. This study aimed to build and implement a system as a solution to the problems currently being faced by the community related to the Covid-19 pandemic and the new normal era. The method used was literature study, observation, and interviews. The device development model used in this research was the Waterfall development model. The results showed that the results of the system development which had been carried out could be drawn from several conclusions that this research produces a Geographic Information System (GIS) regarding the distribution map and status of the Covid-19 zone. Geographical Information Systems (GIS) are easily accessible by users simply by using a web browser. With the GIS-COV website, it could help the public to see and find out information on the condition of an area related to the number of cases and the status of the level of the spread of Covid-19. With the GIS-COV website, the public could find out the number of spread of Covid-19 and certain zones with the highest and lowest levels of spread.


2021 ◽  
Author(s):  
Muhammad Atif Butt

The main aim of this research is to develop and test Web-based Public Participation Geographical Information Systems (WebPPGIS) to enable public involvement and participation in municipal planning and decision making. This objective is based on the belief that by providing citizens with access to information and data in the form of maps and visualisations they can make better informed decisions and it can immerse them into the spatial decision making process. This thesis presents a prototype implementation serving for spatially related discussions which is based on the GeoVPMS (GIS-based Virtual Public Meeting Space) model introduced by (Li et al., 2007). Moreover, a prototype has been analysed, designed and implemented using UML (Unified Model Language) approach to demonstrate a Web GIS-based architecture with utilization of various open source GIS and other OSS (Open Source Software) tools. In addition, it depicts a cost effective model of n-tier (multi-tier) Web integrated application prototype that can facilitate online public participation in municipal planning and development processes. Its components include online GIS-based participation forum as well as notification system enhance communication during spatially-related discussions in municipal planning and manage all kinds of notice among members as well as general public participants. Furthermore, the spatial data handling components used in this prototype is designed to help the public to explore the spatial contexts related to the issues under planning with and without addressing the form, whereas this contribution makes the protytope more effective and successful. In addition, the prototype is demonstrated with a scenario of public participation in spatial planning using Region of Peel's data.


Geomatics ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 206-245
Author(s):  
Lia Duarte ◽  
Ana Cláudia Teodoro

Background: The advent of Geographical Information Systems (GIS) has changed the way people think and interact with the world. The main objectives of this paper are: (i) to provide an overview of 10 years (2010–2020) regarding the creation/development of GIS open-source applications; and (ii) to evaluate the GIS open-source plugins for environmental science. Methods: In the first objective, we evaluate the publications regarding the development of GIS open-source geospatial software in the last 10 years, considering desktop, web GIS and mobile applications, so that we can analyze the impact of this type of application for different research areas. In the second objective, we analyze the development of GIS open-source applications in the field of environmental sciences (with more focus on QGIS plugins) in the last 10 years and discuss the applicability and usability of these GIS solutions in different environmental domains. A bibliometric analysis was performed using Web of Science database and VOSViewer software. Conclusions: We concluded that, in general, the development of GIS open-source applications has increased in the last 10 years, especially GIS mobile applications, since the big data and Internet of Things (IoT) era, which was expected given the new advanced technologies available in every area, especially in GIS.


2017 ◽  
Vol 43 (3) ◽  
pp. 111-117 ◽  
Author(s):  
Edon MALIQI ◽  
Petar PENEV ◽  
Faik KELMENDI

The aim of the paper is developing the Digital Terrain Model (DTM in the further text) through QGIS software. In order to accomplish intention of the paper will test some of the methods and techniques that are widely known in nowadays and those are supported by QGIS software – an open source software. And those methods named TIN and GRID. For showing complexity on the study area will analyse some features or characteristics of terrain in the created DTM. All of these methods and techniques will be applied in QGIS. In general, the QGIS software has rich methodology for creation, intepretation, visualization and analysing the geo-spatial data and the DTM in particular.


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