Ahmet Ozgur DogruIstanbul Technical University · Department of Geomatics Engineering
Ahmet Ozgur Dogru
Assoc. Prof. Dr.
About
107
Publications
64,515
Reads
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626
Citations
Introduction
GIS for health, GIS for environment, GIS for RES management, GIS for watershed management, map use and usability issues, theory of vulnerability and accessibility analysis, FOSS GIT, and etc.
Additional affiliations
September 2007 - September 2008
Institute Geographique National, Saint Mande, France
Position
- Researcher
September 2006 - March 2007
September 2002 - present
Education
September 2004 - February 2009
September 2002 - September 2004
Publications
Publications (107)
This study aimed to provide an insight into the geographic distribution of Hepatitis A incidence considering their temporal distribution, spatial patterns, hot spots and clusters identification in three different age-group (0-4, 5-9 and 10-14) in Turkey. Province based tabular data, including monthly numbers of Hepatitis A cases in children, and th...
Wastewater-based epidemiology is a well-established and complementary approach for monitoring illicit drug use in the general population. In this study, amphetamine (AMP), methamphetamine (METH), 3,4-methylenedioxymethamphetamine (MDMA), cocaine (COC) (from benzoylecgonine), and cannabis (from THC-COOH) consumption levels were investigated for the...
Basic elements considered as social determinants of the health varies in political, socio-economic, structural and intermediary contexts. While socio-economic and political contexts are directly related with the social, economic, public and health policies in country scale. The structural context additionally includes socio-economic dimensions such...
This study proposes an approach integrating current methodology, which determines the amount of drug consumed per month/day per 1,000 inhabitants by measuring concentrations of illicit drugs
and their metabolites in untreated wastewater, with geographic information system (GIS) designed for this specific purpose. The proposed approach contributes t...
The main objective of this research is to explore the cognitive processes of expert and novice map users during the retrieval of map-related information, within varying difficulty levels (i.e., easy, moderate, hard), by using eye tracking and electroencephalogram (EEG). In this context, we present a spatial memory experiment consisting of a large n...
Wildfires have become a growing global concern due to the environmental and economic damage they cause. Climate change is a primary cause of wildfires as it increases the frequency, extent, and severity of wildfires. In addition to climate change, human activities have become a major cause of wildfires, particularly in the Mediterranean region. Sin...
Along with the concepts of “smart city” and “digital twin,” the 3D (threedimensional) city models have started to be used as a basis for many studies that have been carried out in recent years. The most important and basic components of 3D city models are the structures that are located in the cities. However, some small structures of historical im...
All over the world, poor and illiterate girls living in rural areas are at higher risk of becoming underage marriage than well‐educated girls living in cities. Early marriages exacerbate inequalities between females and males in society and violate children's and women's rights. This study aimed to demonstrate temporal changes in the prevalence of...
The need to study air pollution and its connection to human health is no longer a strange idea. Despite the fatalities and illnesses caused by COVID-19, the quarantines significantly decreased air pollution and deaths during this period. Today, satellites can monitor air pollution with great precision, and the research process has quickened, provid...
Objective: According to current statistical data, drug overdose is the most common method of suicide attempt with an average of 90% in our country. This study consists of data on suicide attempt cases in Emergency Department of Cerrahpaşa Medical Faculty with overdose medication. Our aim was to evaluate the spatial information with gender, age, app...
By using procedural modeling techniques, it is possible to visualize 2D geographic information system data containing necessary attribute information in a realistic 3D manner. The important advantage of the procedural modeling technique is that it enables the regeneration of the model whenever it is needed using the attributes stored in the
vector...
Günümüzde coğrafi/mekânsal veriler/bilgiler ve dolayısıyla haritalar gittikçe artan biçimde yaşamın önemli bir parçası haline gelmektedir. Bu alandaki başlıca disiplinlerden biri olan kartografya, çok boyutlu coğrafi/mekânsal verilerin/bilgilerin modellenmesi, işlenmesi, analizi, görselleştirilmesi ve yayımlanması süreçlerine teorik ve pratik açıda...
The study explored and discussed the water management strategy of Istanbul with more than 16 million inhabitants. Istanbul has quite limited local fresh water resources with an ultimate storage capacity of 868.7 million m3 and supplies daily approximately 2.8 million m3 of water at a magnitude of 180 L/ca. 36% of the water demand is supplied from a...
Özet:
Bu çalışma, uzman ve uzman olmayan harita kullanıcılarının mekânsal bellek yeteneklerini incelemeye yönelik kullanıcı deneylerinin tasarım süreçlerine odaklanmıştır. Deneylerde, farklı harita kullanıcı gruplarının haritaların içeriğini hatırlamaları istendiğinde geliştirdikleri dikkate bağlı bilişsel stratejilerini açığa çıkarmada kullanılan...
This study focused on the design processes of user experiments conducted to examine the spatial memory abilities, differences and similarities of expert and novice map users. In the experiments, different map user groups were asked to remember the content of maps with uniform or various levels of detail. The cognitive load of the participants that...
This study aimed at determining culturable airborne bacteria (CAB) and fungi (CAF) concentrations in different sections of a primary school located in Istanbul. Occupancy variables were determinants of exposure and the environmental, ventilation, and comfort parameters within the study. Air samples were collected twice in the summer and spring seas...
Two-dimensional (2D) maps, which have been used extensively for many years, are now being replaced by increasingly widespread three-dimensional (3D) applications on these days. Recent developments have led to the need for rapid production of an entire city in three dimensions using spatial data produced by different methods or already available.
Du...
Two dimensional (2D) Geographic Information System (GIS) data structured with required attribute information can be realistically visualized in three dimension (3D) by using procedural modeling techniques. The procedural model consists of a sequence of parameterizable procedures and represents the object construction process. In this study, the usa...
This study explored the environmental impact of the large-scale projects, the 3rd Bridge across the Bosphorus and 3rd Airport, carried out in the last decade leading to the massive deterioration of the northern forest area in Istanbul. Destroyed forest area was assessed through relevant changes in land classification detected by multi-temporal Land...
This study aims to determine the shoreline changes along the Black Sea Coast of Istanbul, which has been occurred in 7 years from 2009 to 2016. For this purpose, remote sensing technology used to detect
the shorelines in the study period and geographic information system was established for determining the general and specific changes along the sho...
This study investigated the coastal lagoon monitoring and mapping potential of Landsat-8 Operational Land Imager (OLI) and Sentinel-2 Multi-Spectral Instrument (MSI) in the Enez Dalyan Lagoon, located in Turkey. Five different water indices, including normalized difference water index (NDWI), modified normalized difference water index (MNDWI), auto...
The aim of this research is to evaluate the use of ET and EEG for studying the cognitive processes of expert and novice map users and to explore these processes by comparing two types of spatial memory experiments through cognitive load measurements. The first experiment consisted of single trials and participants were instructed to study a map sti...
This paper focuses on the design of a cartographic user experiment that employs both eye tracking (ET) and electroencephalogram (EEG). When creating such an experiment, one is confronted with a large number of (often conflicting) challenges which need to be resolved: quality of the recorded signals, design of appropriate stimuli and tasks, synchron...
Istanbul, being one of the oldest and crowded cities
in the world bridging the Asia and Europe continents, is ranked as the 15th
populated mega city among the 75 largest metropolitans in the world as a result
of the rapid population growth since the year of 1950. The stated growth caused
a significant need for housing, therefore new settlements hav...
Coğrafi/mekansal bilgilerle etkileşmek ve bu bilgilerden yararlanmak için kullanılan en etkili araç haritalardır. Kartografya klasik anlamda her türlü haritanın tasarımı, üretimi, analizi ve kullanımı ile ilgili araştırma yapan bilim dalıdır. Coğrafi bilgi bilimi de çeşitli teknik ve araçlarla coğrafi bilgiyi birçok disiplinle paylaşmayı hedeflemek...
This study aimed at introducing the efficiency of the health services in Turkey by providing province-based analysis using Geographic Information System (GIS) technology. In this context, quantitative data, derived from official health reports published by Turkish Ministry of Health, for the years 2001, 2007 and 2015, were evaluated. Stated data in...
Social and economic development has proceeded in parallel with energy production and this progress is influenced by the types of used energy sources. Increasing environmental problems originated by the widespread use of fossil fuels, have promoted the use of clean and renewable energy sources as solar energy and related technologies as photovoltaic...
This paper focused on the investigation and mapping of water-related communicable diseases in the Black Sea Catchment area in Turkey by using official c and Geographical Information System (GIS) technology. Hepatitis-A and Amebic Dysentery were considered as the main cases, and 115 months temporal trends (January 2000–June 2009) were investigated a...
Ecologically and socio-economically beneficial to cities, and covering a large fragment of land use pattern in developed countries, the green areas are under risk of zoning for building due to rapid and unplanned urbanization, policies aiming at rent and non-applicable zoning ordinances. Sufficiency of active green areas is validated with the stand...
The environmental problems caused by accelerated urbanization in recent years have reached vital limits. As
the population increases in the cities, the problem of waste disposal and storage arises. The incorrect selection
of sanitary landfill sites affects human and other living creatures because of the malodour sprawling from these
sites. Such pro...
This paper explores map users’ cognitive processes in learning, acquiring and remembering
information presented via screen maps. In this context, we conducted a mixed-methods user
experiment employing digital sketch maps and eye tracking. On the one hand, the performance
of the participants was assessed based on the order with which the objects wer...
This study aims to evaluate the landscape transformation and the effect of the third Bosphorus Bridge construction works on the natural ecosystem over seven years’ time in two districts, Beykoz and Sariyer, located at the northern part of Asian and European Istanbul. The study applied supervised classification-maximum likelihood algorithm to monito...
The aim of this study is to create a 3 dimensional (3D) virtual reality model of Istanbul Technical University, Ayazaga Campus. The study covers 80 ha of the campus area where campus buildings are located. Unmanned Air Vehicle (UAV) is used in order to capture the aerial photographs to generate 3D point clouds which later on used for Digital Surfac...
This study explores the possibilities to integrate eye tracking and EEG (electroencephalogram) for cartographic usability research and linking this to cognitive research. The final goal is to obtain insights in how – different types of (in our case experts and novices)– users read, interpret and retrieve the visual information on – different types...
This paper explores the possibilities to integrate eye tracking and EEG (electroencephalogram) for cartographic usability research and linking this to cognitive research. The final goal is to obtain insights in how – different types of – users read, interpret and retrieve the visual information on – different types of – screen maps. Cognitive carto...
Epidemics of Infectious diseases have been documented throughout history and recent global health reports show a continual vulnerability of a large number of people to infectious diseases such as Hepatitis A (HAV) and Amoebic Dysentery (A Dysentery or AD) in relation to their environment. Of particular concern is the epidemic outbreaks patterns of...
This study aims to investigate the effect of the topography on the estimation of unsampled meteorological/climate data which are widely used for modeling climate and renewable energy potentials. In this context, firstly, one of the multi parameter geostatistical interpolation methods; cokriging was applied on a specific data set including precipita...
The main goal of this study is to characterize the lands affected by airport noise in terms of land cover/use characteristics and to make a comparison of airports regarding their effects on the vicinity. Within this context, four major international airports, located in Istanbul (Ataturk Airport), Ankara (Esenboga Airport), Izmir (Adnan Menderes Ai...
The use of the renewable energy sources (RES) such as wind and solar energy has been encouraged as a sustainable method for minimizing the effects of the global warming. The management of the RES includes the site selection, installation, operation and maintenance of the facilities. Since it includes significant amount of investment, the feasibilit...
Over the last decade there have been major enhancements and considerable interest to the methods available to examine patterns of disease incidence, morbidity and mortality in space and time and to relate those patterns to the identification of potential 'causes' of disease, such as environmental exposure, diet and unhealthy behaviours, economic or...
Purpose
The purpose of this study is to investigate the effect of internal and external factors on the accuracy and consistency of the data provided by mobile-embedded micro-electromechanical system (MEMS) pressure sensors based on smartphones currently in use.
Design/methodology/approach
For this purpose, sensor type and smartphone model have bee...
Neurocognitive Methods for Cartographic Usability Research
Implementation of cognitive theory and methods with the aim of understanding maps and cognitive process is the main subject of cognitive cartography. User behaviors when interacting with a cartographic visualization, spatial perception and cognitive procedures can be determined by usabili...
Neuroscience is very promising for cognitive cartography. How and which parts of our brain works when interacting with map-related tasks is directly correlated with the neurons responsible for our mental maps. As visualization is a cognitive process, user centered design (UCD) plays an important role in usability research. How our brain can cope wi...
Remotely sensed imagery has an enhanced capability of extracting in-formation about small image structures (both artificial and natural ob-jects). Fast, low cost, accurate and spatially rich data can be acquired via remote sensing technology. For this reason, satellite image mapping is quite common technique and image maps provide a great contribu-...
Crowd sourcing is a popular method for providing data from people by the use of mobile sensor, internet and communication technologies. However efficient use of the raw data provided by the sensors with different characteristics in order to obtain accurate results is not investigated in detail. This study aims to investigate the data collected by m...
Determining the potentials of the renewable energy sources provides realistic assumptions on useful utilization of the energy. Wind speed and solar radiation are the main meteorological data used in order to estimate renewable energy potential. Stated data is considered as point source data since it is collected at meteorological stations. However,...
Bilgi ve iletişim teknolojilerinin hızla gelişmesiyle birlikte, insan aktivite ve davranışlarının belirlenebilmesi için, birey bazında mekansal bilgiye ihtiyaç ortaya çıkmıştır. Zamansal nitelik taşıyan mekan bilgisi, dinamik bir yapıya sahip olduğu için dinamik görselleştirme yöntemleri kullanılarak görselleştirilmelidir. Çünkü statik iki boyutlu...
Determining the land cover and land use changes are important for monitoring and managing the changes and their causes in both natural environment and man-made areas. Quantitative analysis based on numerical computations and visual interpretation based on human eye are the techniques used in information extraction -related to land use and land cove...
This paper aims to introduce a dynamic 3D environment allowing to elaborate space and time together, a mobile application detecting
movement, an evaluation of space-time human behaviors by using 2D and
3D geo- visualization methods. For this reason, a case study carried out to
observe the mobility in a university campus. The methodology of the s...
Bina, anıt, gibi mimari eserlerin yanı sıra yol, köprü v.b. mühendislik yapılarının 3 Boyutlu olarak belgelendirilmeleri geleneksek jeodezik ve fotogrametrik yöntemler ile yıllardır yapılmaktadır. Üretilen CAD verileriyle modelden bilgi elde etmek, modelleme ve düzeltmeler yapmak kolaydır. Günümüzde yersel lazer tarayıcı sistemleri ile ölçeğe bağlı...
Monitoring land use/land cover changes is a very important component for sustainable management of sensitive regions. Because of their ecological, biological, environmental and economic importance, Igneada flooded (longos) forests have a multiple role in the landscape. This study is conducted to detect and monitor land use and land cover changes of...
The paper presents additive approach as an alternative to known methodology (factorial scoring) of soil water erosion risk assessment. The study is performed for agricultural land of a test site located in Lower Silesia, Poland. Proposed algorithm is based on Principal Component Analysis (PCA) of three environmental factors: soil susceptibility to...
Cartography and GIS education is largely undertaken by geomatic engineering (a.k.a. geodesy and geoinformatics, geospatial science or surveying and mapping/geoinformation) and geography departments of universities as part of their undergraduate and graduate programmes. Individual bachelor programmes on cartography are very few and in trend of decre...
Abstract: Developing applications for analyzing and processing different remotely sensed data is very important for environmental predictions and management strategies. Applications focusing on environmental and natural resource monitoring need large data sets to be processed and fast response to actions. These requirements mostly imply high comput...
Variety kinds of disciplines increasingly integrate remote sensing and geographic information science techniques to discover the relationships between earth and human needs. It is possible to acquire fast, low cost, accurate and spatially rich data via remote sensing. Due to the spatial resolution of remote sensing data, maps with different scales...
This report s one of the Deliverable of EnviroGRIDS Project (FP7 Project - Building Capacity for a Black Sea Catchment Observation and Assessment supporting Sustainable Development)
All other Deliverable and publications about the project is available through Project Webpage (http://www.envirogrids.net).
The aim of this report is to discuss the i...
Bu çalışmada meteorolojik verilerin değerlendirilmesi ve verilerden elde edilen bilgilerin haritalar aracılığı ile sunulması için kullanılan enterpolasyon yöntemleri araştırılmıştır. Bu kapsamda Bulgaristan ve Türkiye’nin kuzey kesimlerini kapsayan çalışma alanı için kullanılabilecek en uygun mekansal enterpolasyon yöntemi veri kaynaklarının mekans...
In this study, the purpose is to detect and to analyse land use land
cover change in İğneada urban area and its surroundings by using
1984, 1990, 2000 and 2010 dated Ladsat 5 TM data set. The methodologyinvolves 6 basic steps: 1- Image preprocessing (including
atmospheric and radiometric correction), 2- ISODATA Unsupervised
classification based on...