Search results

1

Geoinformatics - an integrated spatial research tool

100%

Olędzki J. R., Kwiatkowska J. M.

Miscellanea Geographica. Regional Studies on Development

|

2004

|

vol. 11

323-331

EN

The structure of geoinformatics can be understood in many ways, what can be seen from the more or the less complex schemas published in various articles. Geoinformatics creates new possibilities for the precise analysis of spatial phenomena, such as for following their dynamics or defining the associations existing between their components. The use of remote sensing data in such research, takes to another level those areas of knowledge, in which there nevertheless still is a scarcity of reliable materials. It also enables the current monitoring of those phenomena which can't be investigated and estimated in any other way, as well as the modeling of spatial (geographical) phenomena. Since 1996, many studies have been performed at the Laboratory of Remote Sensing of the Environment at the University of Warsaw, in which remote sensing data were integrated with data obtained by other means.

2

Survey of housing characteristics using drones: An experiment in the Alto das Pombas slum, Salvador de Bahia/Brazil

100%

Gomes J. G., Pedrassoli J. C.

Quaestiones Geographicae

|

2021

|

vol. 40

|

issue 3

169-182

EN

Since the approval of the Brazilian Federal Technical Assistance Law, whose objective is to guarantee adequate technical assistance to the residents of poor areas to improve their homes, several municipalities have implemented programs, not always successful, to improve housing in slums. Aiming to subsidize these programs implementation workflow, the present paper analyses use of drones as a tool to gather information about the physical characteristics slum households in Salvador de Bahia city, Brazil. As an experiment we flight over a single census sector within the Alto das Pombas slum, and after image processing we extracted and organized the collected data, extracting the possible information that could be applied to identify and quantify the most precarious houses that could be prioritized from a health improvement perspective. We conclude that many of the necessary data needed, on the urbanistic scale in Brazilian slums, can benefit from drone photogrammetry at low cost and fast execution.

3

Erased by the Plough, Spotted from the Air. Remains of Earthwork Sites from Silesia

100%

Furmanek M., Wroniecki P.

Analecta Archaeologica Ressoviensia

|

2017

|

vol. 12

199-220

EN

Since 2012 south-western Poland has been subject to regular aerial prospection campaigns that covered a vast area of the Upper Silesian, Lower Silesian and Opole regions. Eight surveys were conducted in with a total of 44 flight hours during late spring and summer dates. Their primary aim was the recognition of Neolithic and Early Bronze Age communities and landscapes. Additional photographic documentation of known and newly discovered features from other chronological periods was also obtained. The article presents a selection of data from five medieval settlements (Borucin site 2, Chrzelice site 1, Gniechowice site 1, Komorno site 1, Stary Zamek site 6), whose common feature is their nearly completely leveled earthworks, which makes the presented aerial imagery a basic source of information about them. The potential of remote sensing approaches in the case of quickly deteriorating archeological terrain forms, although not used frequently, has numerous advantages especially in contrary to the still favoured destructive excavation strategies. A visible intensification of archeological site destruction due to all-round development of urban and rural areas has affected all types of archeological sites – also those characterized (until relatively recently) by unique and complex earthwork remains. This situation requires an adaptation of new protection strategies, as well as alternative cognitive and methodical schemes. The case studies presented in this paper are a final wakeup call showcasing the scale of the ongoing, countrywide, systematic destruction of important yet unknown or poorly researched archeological sites. The remedy in our opinion is the recognition of non-invasive remote sensing and geophysical techniques as primary research methods as they allow defining crucial elements, such as form, size, layout, or functional interpretation.

4

Nieinwazyjne i małoinwazyjne badania archeologiczne grodziska w Horbowie-Kolonii, w powiecie bialskim, w województwie lubelskim, w roku 2021

88%

Piotrowski M., Piotrowska P., Kłosińska E. M.

Materiały i Sprawozdania Rzeszowskiego Ośrodka Archeologicznego

|

2021

|

issue 42

141-161

EN

The article concerns the research of an early medieval fortified settlement in Horbowo-Kolonia, site 10, in the Biała Podlaska district, Lublin voivodeship (AZP 60-88/88-10). The studies were non-invasive and minimally invasive, with the use of geological probing, geophysics and archaeological remote sensing. On their basis, it was established that the fortified settlement in Horbowo is a two- rampart structure with a moat between the ramparts. The main (internal) rampart is made of one row of boxes, with a gate in its eastern part. Apart from the area from the fortified settlement, its immediate vicinity („podgrodzie”) was also examined.

5

Assessment of Bank Erosion, Accretion and Channel Shifting Using Remote Sensing and GIS: Case Study – Lower Course of the Bosna River

88%

Lovric N., Tosic R.

Quaestiones Geographicae

|

2016

|

vol. 35

|

issue 1

81-92

EN

River bank erosion, accretion and lateral channel migration are the most important geomorphological processes, which attract a great deal of attention from river engineering scientist over the last century. in the presented study, we assessed how the river’s shape and position have changed during 1958-2013 period using remote sensing and GIS. We have identified that the total area of bank erosion during given period equalled 8.3430 km2, of which 3.2593 km2 were on the left bank and 5.0837 km2 on the right bank. The total area of bank accretion from 1958 to 2013 equalled 10.7074 km2, of which 5.4115 km2 was on the left bank and 5.2958 km2 on the right bank. The Bosna riverbed average movement in the period 1958-2013 was established in the amount of 132.4 m. During this period, the average lateral channel migration was 2.5 m per year. The data presented here are significant for practical issues such as predicting channel migration rates for engineering and planning purposes, soil and water management.

6

Remote sensing techniques for tracking changes caused by illegal gold mining in Madre de Dios, Peru

88%

Adamek K., Lupa M., Zawadzki M.

Miscellanea Geographica. Regional Studies on Development

|

2021

|

vol. 25

|

issue 4

EN

Illegal extraction of gold has grown to be a problem in many countries, causing the degradation of the environment. The main purpose of this paper is to investigate changes in tree cover and surface pollution. The development of a mine site has been observed and analysed with images acquired from Landsat and the Sentinel missions. The results of the study showed changes in the state of the environment, strongly suggesting the possibility of ongoing pyrite weathering processes and the transportation of clay materials down watercourses, which can cause not only the further deterioration of the environment but also slow down the natural regeneration of the forest. In addition, research has found disturbing changes in vegetation, showing a loss of tree cover in the Amazon Rainforest as high as 17%. The validity of using remote sensing methods to observe the development of individual mining sites and their characteristics was confirmed.

7

Assessment of soil characteristics using three bands agri-cultural digital camera

88%

Glinko A., Kaźmierowski C., Piekarczyk J., Królewicz S.

Quaestiones Geographicae

|

2022

|

vol. 41

|

issue 3

127-140

EN

Remote sensing techniques based on soil spectral characteristics are the key to future land management; however, they still require field measurement and an agrochemical laboratory for the calibration of the soil property model. Visible and near-infrared diffuse reflectance spectroscopy has proven to be a rapid and effective method. This study aimed to assess the suitability of multispectral data acquired with the agricultural digital camera in determining soil properties. This 3.2-Mpx camera captures images in three spectral bands – green, red and near-infrared. First, the reference data were collected, which consist of 151 samples that were later examined in the laboratory to specify the granulometric composition and to quantify some chemical elements. Second, additional soil properties such as cation exchange capacity, organic carbon and soil pH were measured. Finally, the agricultural digital camera photograph was taken for every soil sample. Reflectance values in three available spectra bands were used to calculate the spectra indices. The relationships between the collected data were calculated using the independent validation regression model such as Cubist and cross-validation model like partial least square in R Studio. Additionally, different types of data normalisation multiplicative scatter correction, standard normal variate, min–max normalisation, conversion into absorbance] were used. The results proved that the agricultural digital camera is suitable for soil property assessment of sand and silt, pH, K, Cu, Pb, Mn, F, cation exchange capacity and organic carbon content. Coefficient of determina-tion varied from 0.563 (for K) to 0.986 (for soil organic carbon). Higher values were obtained with the Cubist regression model than with partial least squares.

8

Desertification detected in the Udhaim River Basin, Iraq. Based on Spectral Indices Derived from Remote Sensing Images

88%

Mail A. A. S. M.

Miscellanea Geographica. Regional Studies on Development

|

2017

|

vol. 21

|

issue 3

EN

In this study, changes in Land Use Land Cover (LULC) have been investigated over the Udhaim River Basin in Iraq by using spectral indices. NDVI, NDBI, NDWI, NDBaI, and CI represent respectively the vegetation, built-up, water bodies, bare-land, and soil crust of LULC. Two different images were acquired for the analysis, namely a Landsat 5 TM image from 1 July 2007 and a Landsat 8 OLI from 5 June 2015, both representing summer conditions. Results show that the percentages of vegetated land and water body areas have decreased. On the contrary, the percentages of built-up, bare land and soil crust areas have increased. The loss of vegetated areas and water body areas is a signal of land degradation leading to desertification, due to the combined effects of climate conditions, water deficit and human activities. Field observation shows that human activities have a significant impact on land degradation.

9

SALBEC – A python library and GUI application to calculate the diurnal variation of the soil albedo

88%

Jasiewicz J., Cierniewski J.

Quaestiones Geographicae

|

2021

|

vol. 40

|

issue 3

EN

This study presents the SALBEC – Soil ALBEdo Calculator – a Python library and Graphical User Interface designed to predict the diurnal variation of the clear-sky albedo based on the soil surface properties. Such predictions are becoming more and more necessary with the increasing role of remote measurements. The software uses the following input parameters: the soil spectrum, soil roughness, day of the year (DOY) and sample location. It returns the diurnal albedo variation and, as a unique feature, optimal observation time in the form of tables and graphs as out-puts. Models created with the SALBEC were compared with the data acquired under near clear-sky conditions. The comparison shows that the differences between the models and measured data do not exceed the variation of input parameters. The software is directed towards scientists and professionals who require precise estimations of the albedo of soils for different field observation times. Our software is issued as free and open source software (FOSS) and is publicly available at https://github.com/jarekj71/salbec.

10

REMOTE SENSING USING UNMANNED AERIAL VEHICLES FOR TOURIST-RECREATION LAKE EVALUATION AND DEVELOPMENT

88%

Borkowski G., Młynarczyk A.

Quaestiones Geographicae

|

2019

|

vol. 38

|

issue 1

5-14

PL

This article concerns the use of remote sensing methods to assess the potential of tourism and recreation of lakes by using unmanned aerial vehicles as a tool that offers new measurement possibilities in such difficult areas to research as river and lake systems. For the purpose of the study, air surveys over three lakes used for tourism and recreation purposes were planned and carried out. These were the following lakes: Swarzędzkie, Wolsztyńskie and Zbąszyńskie located in western Poland. The photos were taken with a RGB and a multispectral cameras. On the basis of calculated orthophotomaps and digital surface models, anthropogenic and natural values were assessed. The examples of the research show the versatile possibilities of using drones dependent on the type sensor used. Remote sensing performed from the deck of an unmanned aircraft is widely used in the study of lakes and is an alternative to existing land and water research methods.

11

Analysis of Spatial Development in and Around the City of Isparta through Remote Sensing and Geographic Information Systems

88%

Temurçin K., Uluşar G.

Prace Komisji Geografii Przemysłu Polskiego Towarzystwa Geograficznego

|

2013

|

vol. 22

120-132

EN

Remote Sensing is a method of examination used in the study of resources on earth without any physical contact. It is a method by which the characteristics of the land below are recorded from space and sky. Determining the characteristics of natural and cultural resources of earth, sustainable exploitation of these resources in the most effective ways and continuous monitoring of the changes in these resources are fundamental to being a developed country. For a sustainable land use and urbanization, data about the unstable natural environment must be collected and monitored at regular intervals, and in order to do these, Remote Sensing (RS) and Geographical Information Systems (GIS) are employed. Images obtained through RS method can be analyzed for the accurate use of the data available. This study seeks to determine the spatial development in and around the city of Isparta through digital imaging processing techniques on different satellite images which belong to different years. Images from satellites ASTER and LANDSAT; information on the quarters in Isparta and the city plan and ERDAS IMAGINE 9.1 program were used in the study. The spatial development of the city of Isparta was studied on the basis of the satellite images obtained in the years 1987, 2000 and 2010 and this study was integrated into GIS. Having analyzed how much change occurred and which way it trended, important information was collected which will be used as source for future studies to be carried out on Isparta. It was observed that while residential areas increased, amount of forested land, and agricultural areas decreased during the periods studied.

12

Mapping and monitoring erosion-accretion in an alluvial river using satellite imagery – the river bank changes of the Padma river in Bangladesh

88%

Billah M. M.

Quaestiones Geographicae

|

2018

|

vol. 37

|

issue 3

EN

The Padma river is widely known for its dynamic and disastrous behaviour, and the river has been experiencing intense and frequent bank erosion and deposition leading to the changes and shifting of bank line. In this paper, a time series of Landsat satellite imagery MSS, TM and OLI and TIRS images and are used to detect river bank erosion-accretion and bank line shifting during the study period 1975-2015. This study exhibits a drastic increase of erosion and accretion of land along the Padma river. The results show that from 1975 to 2015, the total amount of river bank erosion is 49,951 ha of land, at a rate of 1,249 ha a−1 and the total amount of accretion is 83,333 ha of land, at a rate of 2,083 ha a−1. Throughout the monitoring period, erosion-accretion was more pronounced in the right part of the river and bank line had been shifting towards the southern direction. The paper also reveals that the total area of islands had been increased significantly, in 2015 there was about 50,967 ha of island area increased from 20,533 ha of island area in 1975, and the results evidence consistency of sedimentation in the river bed.

13

Biografia krajobrazu zbiegu Noteci do Warty w perspektywie archeologicznej interpretacji danych teledetekcyjnych

88%

Kostyrko M., Zamelska-Monczak K.

Przegląd Archeologiczny

|

2020

|

vol. 68

137-162

EN

This paper presents a case study of a place that during one period in history played an important role in the structures of the Piast state, and then, as a result of subsequent historical events, lost much of its significance. In the 14th century, Santok was already on the margins of ‘grand history’ and fading into oblivion. This changed as a result of archaeological excavations carried out here for the first time in the 1930s. The narrative adopted in this article is based on a presentation of landscape biography and analysis of spatial sources – namely, historical aerial photographs and ones deriving from airborne laser scanning. This point of view has allowed the authors to pay special attention to previously neglected fragments of the history of the landscape under analysis.

14

Mapping and monitoring erosion-accretion in an alluvial river using satellite imagery – the river bank changes of the Padma river in Bangladesh

88%

Billah M. M.

Quaestiones Geographicae

|

2018

|

vol. 37

|

issue 3

EN

The Padma river is widely known for its dynamic and disastrous behaviour, and the river has been experiencing intense and frequent bank erosion and deposition leading to the changes and shifting of bank line. In this paper, a time series of Landsat satellite imagery MSS, TM and OLI and TIRS images and are used to detect river bank erosion-accretion and bank line shifting during the study period 1975-2015. This study exhibits a drastic increase of erosion and accretion of land along the Padma river. The results show that from 1975 to 2015, the total amount of river bank erosion is 49,951 ha of land, at a rate of 1,249 ha a−1 and the total amount of accretion is 83,333 ha of land, at a rate of 2,083 ha a−1. Throughout the monitoring period, erosion-accretion was more pronounced in the right part of the river and bank line had been shifting towards the southern direction. The paper also reveals that the total area of islands had been increased significantly, in 2015 there was about 50,967 ha of island area increased from 20,533 ha of island area in 1975, and the results evidence consistency of sedimentation in the river bed.

15

New Perspectives on the Use of Satellite Information in Contemporary Armed Conflicts and Crisis Management

75%

Goniewicz K.

Polish Political Science Yearbook

|

2023

|

issue 3(53)

109-118

EN

Among current global threats, the risk of developing an emergency requires a comprehensive approach from all entities involved in crisis management. Despite the advanced technologies available to predict each threat, taking appropriate countermeasures is often impossible. Often the best solution is to prepare in advance and act efficiently after the occurrence of a given threat event. It is also crucial to implement the latest methods and solutions that allow for better preparation and response in case of an emergency. This article presents the results of the analysis of the use of modern satellite systems aimed at, among others, improving security in the event of armed conflicts and crises. This perspective is written for two reasons. Foremost is to present the potential of the existing Polish security system, which aims to reduce the risks and minimise the problems of crisis management associated with natural disasters. Secondly, to foster a discussion and create a basis for exchanging information and advances within the countries implementing similar solutions. It is especially crucial in joint actions with neighbouring countries in case of emergencies and disasters in border areas.

16

Informatization of educational process in high school pedagogical direction

75%

ЕROPOVA Е., MEDVEDEV Y.

Edukacja-Technika-Informatyka

|

2013

|

vol. 4

|

issue 2

54-56

EN

Informatization is an important component of the system of higher education, which includes not only traditional methods and forms of training, but also the use of multimedia, telecommunications, remote sensing means of training. The use of it in teaching gives the possibility to the students carry out course and diploma projects with the use of the programs: Word text editor, Excel spreadsheets, drawings are done in AutoCAD or ArchiCAD, graphics, Power Point, Corel Draw and Photoshop. Thanks to the introduction of information technologies into the process of teaching students with an interest carry out the work, as it allows you to show the individual abilities and increases the cognitive interest in the subjects. Information technology is convenient to use when conducting ratings of the tests (with multiple choice answers, with alternative answers, with freely конструируемыми answers), the independent work of the students. Regular use of computer programs facilitates the acquisition of in-depth and profound knowledge, development of creative thinking and abilities, the formation of the students ' motivation readiness to use the acquired knowledge, abilities and skills for the future profession of a teacher. Future specialists of the educational sphere should own it, to solve their professional tasks, successfully work with the children. Substantial assistance in this may have a modern information and computer technologies, without which the teachers of today are simply not do. Ability to use in their work modern it becomes one of the main components of professional training of teachers.

17

Soil erosion susceptibility mapping of Imo River Basin using modified geomorphometric prioritisation method

75%

Nwilo P. C., Ogbeta C. O., Daramola O. E., Okolie C. J., OrJi M. J.

Quaestiones Geographicae

|

2021

|

vol. 40

|

issue 3

143-162

EN

Gullies and other forms of erosion have been the greatest environmental problem and catastrophe in most high- and low-income countries. The challenge posed by soil erosion has compromised agricultural productivity, en-vironmental biodiversity and food safety for the world’s population. It is important to identify vulnerable areas to soil erosion in each region to initiate remedial measures. This study demonstrates the use of watershed morphometry coupled with weighted sum analysis (WSA) to estimate the soil erosion susceptibility of the Imo River Basin sub-wa-tersheds (SWs) in South-Eastern Nigeria using satellite remote-sensing data and geographic information system (GIS) analysis. To this end, Shuttle Radar Topography Mission (SRTM), a Digital Elevation Model (DEM) with 30 m spatial resolution was used to extract and analyse 18 morphometric parameters including basic, linear, shape and relief. The method of receiver operating characteristics (ROC) curves was used to validate the model’s prediction accuracy. This morphometry-based analysis resulted in the SWs being classified into zones of low, medium, high and very high erosion susceptibility. With regard to erosion susceptibility, 41.51% of the basin (2494.68 km2) is in the very high pri-ority zone; while 10.50%, 44.33% and 3.66% of the basin are in the high, medium and low priority zones respectively. Validation of the final erosion susceptibility map showed a prediction accuracy of 81%. The use of satellite imagery and morphometric analysis in this study was cost- and time-effective for identifying areas susceptible to soil erosion.

18

SPATIAL-TEMPORAL DYNAMICS LAND USE/LAND COVER CHANGE AND FLOOD HAZARD MAPPING IN THE UPSTREAM CITARUM WATERSHED, WEST JAVA, INDONESIA

75%

Yulianto F., Suwarsono S., Nugroho U. C., Nugroho N. P., Sunarmodo W., Khomarudin M. R.

Quaestiones Geographicae

|

2020

|

vol. 39

|

issue 1

EN

This study presents the information on the dynamics of changes in land use/land cover (LULC) spatially and temporally related to the causes of flooding in the study area. The dynamics of LULC changes have been derived based on the classification of Landsat imagery for the period between 1990 and 2016. Terrain surface classification (TSC) was proposed as a micro-landform classification approach in this study to create flood hazard assessment and mapping that was produced based on the integration of TSC with a probability map for flood inundation, and flood depth information derived from field observation. TSC as the micro-landform classification approach was derived from SRTM30 DEM data. Multi-temporal Sentinel-1 data were used to construct a pattern of historical inundation or past flooding in the study area and also to produce the flood probability map. The results of the study indicate that the proposed flood hazard mapping (FHM) from the TSC as a micro-landform classification approach has the same pattern with the results of the integration of historical inundation or previous floods, as well as field investigations in the study area. This research will remain an important benchmark for planners, policymakers and researchers regarding spatial planning in the study area. In addition, the results can provide important input for sustainable land use plans and strategies for mitigating flood hazards.

19

Report from field reconnaissance at Gebelein, Khozam and el-Rizeiqat

75%

Ejsmond W., Chyla J. M., Baka C.

Polish Archaeology in the Mediterranean

|

2015

|

vol. 24(1)

265-274

EN

A field reconnaissance in the region of Gebelein, Khozam and el-Rizeiqat in 2013 was aimed at obtaining information on site topography and state of preservation, even as it tested mobile GIS devices and remote sensing analysis to improve usage procedures in field prospection. Archival maps and satellite imaging were used to locate archaeological features, analyze changes of landscape and modern expansion of the cultivation zone from the natural alluvial plain into the low desert area.

20

Glossing the past: the Fifth Dynasty sun temples, Abu Ghurab and the satellite imagery

63%

Nuzzolo M., Zanfagna P.

Pražské egyptologické studie (Prague Egyptological Studies)

|

2017

|

issue 19

110-123

EN

The sites of Abusir and Abu Ghurab, with their unique mingling of funerary and religious architecture, and the incredible heritage of written papyrus documents, represent a crucial area for the understanding of the historical, architectural and religious evolution of Old Kingdom Egypt. However, many of their topographical and archaeological features remain unclear, especially as regards the identification of the four missing sun temples, which are documented in textual sources of the time but have been never located. The present article wishes to further our knowledge of the sacred landscape of the area during the Fifth Dynasty thanks to the combined analysis of archaeological data, the historical cartography of the area, and new remote sensed imagery.

Refine search results

Geoinformatics - an integrated spatial research tool

Survey of housing characteristics using drones: An experiment in the Alto das Pombas slum, Salvador de Bahia/Brazil

Erased by the Plough, Spotted from the Air. Remains of Earthwork Sites from Silesia

Nieinwazyjne i małoinwazyjne badania archeologiczne grodziska w Horbowie-Kolonii, w powiecie bialskim, w województwie lubelskim, w roku 2021

Assessment of Bank Erosion, Accretion and Channel Shifting Using Remote Sensing and GIS: Case Study – Lower Course of the Bosna River

Remote sensing techniques for tracking changes caused by illegal gold mining in Madre de Dios, Peru

Assessment of soil characteristics using three bands agri-cultural digital camera

Desertification detected in the Udhaim River Basin, Iraq. Based on Spectral Indices Derived from Remote Sensing Images

SALBEC – A python library and GUI application to calculate the diurnal variation of the soil albedo

REMOTE SENSING USING UNMANNED AERIAL VEHICLES FOR TOURIST-RECREATION LAKE EVALUATION AND DEVELOPMENT

Analysis of Spatial Development in and Around the City of Isparta through Remote Sensing and Geographic Information Systems

Mapping and monitoring erosion-accretion in an alluvial river using satellite imagery – the river bank changes of the Padma river in Bangladesh

Biografia krajobrazu zbiegu Noteci do Warty w perspektywie archeologicznej interpretacji danych teledetekcyjnych

Mapping and monitoring erosion-accretion in an alluvial river using satellite imagery – the river bank changes of the Padma river in Bangladesh

New Perspectives on the Use of Satellite Information in Contemporary Armed Conflicts and Crisis Management

Informatization of educational process in high school pedagogical direction

Soil erosion susceptibility mapping of Imo River Basin using modified geomorphometric prioritisation method

SPATIAL-TEMPORAL DYNAMICS LAND USE/LAND COVER CHANGE AND FLOOD HAZARD MAPPING IN THE UPSTREAM CITARUM WATERSHED, WEST JAVA, INDONESIA

Report from field reconnaissance at Gebelein, Khozam and el-Rizeiqat

Glossing the past: the Fifth Dynasty sun temples, Abu Ghurab and the satellite imagery