Geodetic Mapping Research Articles

ОСОБЛИВОСТІ ОРГАНІЗАЦІЇ ЗЕЛЕНОЇ ЗОНИ НА ТЕРИТОРІЇ КАМПУСУ КИЇВСЬКОГО НАЦІОНАЛЬНОГО УНІВЕРСИТЕТУ ІМЕНІ ТАРАСА ШЕВЧЕНКА (ВИСТАВКОВИЙ ЦЕНТР)

B a c k g r o u n d . The relevance and purpose of the research. Institutions of higher education (HEIs) are mostly city-forming objects, and the design of the surrounding territory affects their image, the aestheticization of the environment, and performs a decorative function. Today's challenges require the improvement of landscapes and architecture of higher education institutions, and this problem is urgent, because universities gather a large number of young people from different regions and countries of the world, who have to live and study in appropriate comfortable conditions. Mostly, the problem of organizing the territory is considered from the point of view of greening, rather than a comprehensive landscape project. Therefore, the formation of a holistic space of the university campus, taking into account modern scientific approaches to the design of landscape architecture objects in the conditions of global climate change, seems to be extremely relevant. The goal is to conduct an analysis of the features of the organization of the green zone of the Taras Shevchenko Kyiv National University campus (Exhibition Center campus) taking into account the requirements that are put forward to the higher educational institution. Research materials and methods. The object of research was the territory of the Taras Shevchenko Kyiv National University campus (Exhibition Center campus). M e t h o d s . Methods of searching for information in printed and electronic publications, searchable scientific databases, as well as methods of data analysis, comparison and generalization, field surveys, measurements on geodetic maps using the AutoCADin vector format. R e s u l t s . The standards for greening the territory of the ZVO were analyzed. The state of green spaces of higher educational institutions depends on the selection of plants adapted to climatic and soil conditions, as well as recreational loads. Most Ukrainian institutions of higher education do not meet the standards of "green universities". The functional zoning of the KNU campus (Exhibition Center) complies with building regulations, but the green area on the territory is distributed unevenly. It is necessary to pay attention to the use of phytoorganic background of green park plantings as an option of aerofitotherapy, taking into account modern data on the positive effect of biogenic volatile organic substances on the human body. C o n c l u s i o n s . The green zone is an integral element of the structure of educational campuses, when developing each of the design options for the solution of the territory, it is necessary to offer a new image that corresponds to modern trends in design and will make it possible to create a functionally sufficient and unique environment.

Along-strike variations of strain partitioning within the Apennines determined from large-scale multi-temporal InSAR analysis

In the Apennine Mountains of the Italian Peninsula, GPS data display 3–4 mm/yr of divergent motion oriented N50°E between the Adriatic and Tyrrhenian coastlines. However, the mechanisms driving this extension remain debated and along-strike variations of extension within the actively deforming belt remain poorly constrained. Here, we derived the first large-scale extensional and vertical velocity field for the Apennines by multi-temporal InSAR analysis of 7 years of Sentinel-1 data at the scale of the entire range, improving the spatial resolution and vertical accuracy of existing GPS measurements. The results reveal along-strike variations of extensional rates and gradients, with extension concentrated on single fault systems in the north, consistent with the loci of seismicity and recent moderate earthquakes, and distributed throughout the central Apennines, where the range is widening. Vertical surface displacements do not resolve any active long-wavelength uplift of the orogenic belt and, on average, show more subsidence than uplift relative to the Tyrrhenian and Adriatic coasts. This work provides the first InSAR-based geodetic map of differential extension and uplift within the Italian Peninsula. Our results are compatible with a pure shear extensional model of the crust, driven by both boundary and gravitational forces.

Descriptive text to the Geological map of Denmark, 1:50 000, Møn 1511 I, 1511 IV and 1512 II

Descriptive text to the Geological map of Denmark, 1:50 000, Møn 1511 I, 1511 IV and 1512 II

About terraces on the shore of the Teriberskaya Bay of the Barents Sea (the Kola Peninsula)

The paper considers the results of the study of modern terraces on the coast of the Lodeyny Peninsula in the Barents Sea. According to field observations, decoding of space and geodetic maps and volumetric modeling, signs of three terraces have been identified. Two terraces having a rear seam, a cliff, a brow and horizontal platforms have been studied in more detail. The rear seams are located at 7 and 30 m, and the edges at 10 and 40 m above the sea level. The third terrace is confined to the level of 40-60 m, and has not been studied in detail. According to estimates, the first two terraces were formed about 3,300 and 6,000 years ago respectively. The 1st terrace characterizes the period of slow land rise by 10 m, at the speed up to 3 mm/year, which began about 3,300 years ago and continues to the present. It is characterized by a uniform sea retreat of about 15 mm/year. The erosion products of this terrace are common in the lateral zone and represent modern marine sediments, including beaches forming a new terrace. The 2nd terrace characterizes to the dynamics of rapid land rise by 30 m at a speed of about 11 mm/year, which occurred in the period from 6,000 to 3,300 years ago. The erosion products of this terrace are most common on the coast and are found at a distance of 100 m to 2-3 km from the shore. It is assumed that the speed of movement of the coastline during the retreat of the sea was different and reached up to 900 mm/year. According to the authors, preliminary data indicate the instability of the territory and the manifestation of block movements, which may have a negative impact on the development of infrastructure.

Introduction of the new geodetic datums and map projections in the Federation of Bosnia and Herzegovina

Introduction of the new geodetic datums and map projections in the Federation of Bosnia and Herzegovina

Anthropogenic relief changes in a long‐lasting lignite mining area (‘Ville’, Germany) derived from historic maps and digital elevation models

AbstractHumans constitute one of the main geomorphological agents in modern times. As an example, post‐mining regions represent a typical landscape of the Anthropocene. Strong relief modifications are particularly obvious with open pit mining. However, many existing mining areas are lacking detailed pre‐mining information for the quantification of anthropogenic relief changes, which is a considerable challenge in regions with historic mining activities.Here, the Ville (Rhenish lignite district, Germany) is used to quantify surface mining induced relief changes in one of the oldest and currently largest lignite districts in Europe. Historical maps from first geodetic mapping in 1893 enabled construction of a historic digital elevation model to quantify the relief changes in comparison to elevation data from 2000 and 2015. The vertical accuracy of the historic data is remarkably high, with relief differences < 2 m in areas not affected by mining. In total, 49.2% of the investigated area (184 km2) shows a relief deficit and 14.5% has positive relief differences. Absolute changes account for more than 80 m heightening (dumpsites of overburden) and lowering of the natural relief (pits). Besides these altitudinal changes, overall steeper slopes are significant for the new topography, but levelling exists likewise. The spatial variabilities are discussed in the context of the regional geology and the mining techniques.Undoubtedly, such large‐scale anthropogenic relief changes persist for a very long time and will last as a human legacy far into the future. Only the detailed reconstruction of the pre‐mining relief offers the ability to clarify the dimension of humans as geomorphological agents and to understand landscape perception. Due to the fact that the impact of open pit mining has such a large vertical and horizontal extension, their consideration as part of anthropogeomorphology can significantly contribute to support future Critical Zone research in the Anthropocene.

Gravity field recovery from geodetic altimeter missions

Satellite radar altimetry collected during a number of geodetic missions has provided a new understanding of the topography and tectonics of the deep oceans. As altimeter performance and coverage improves, smaller structures are revealed. Here we investigate the contribution of six altimeter missions that have been placed into geodetic mapping phases for more than one year. Two types of evaluations are performed. We first compare the composite (all six altimeters) grids of east and north vertical deflection to matching grids where one altimeter has been omitted evaluate their contribution versus latitude. We then estimate the noise in each altimeter by computing the median absolute deviation of the profiles with the best composite grid. Both analyses show that SARAL/AltiKa provides the greatest contribution and ERS-1 no longer provides any significant improvement. The major limitation for recovering small scale gravity features is the sea surface roughness from ocean waves. There have been steady improvements in instrumentation and processing methods that will continue into the future with higher frequency radars and interferometric swath altimeters planned for future missions.

A coastal mean sea surface with associated errors in Norway based on new-generation altimetry

Abstract The coastal mean sea surface (MSS) has applications within oceanography as well as geodesy. Together with a geoid model, it forms an important component for geodetic mapping of ocean surface currents that are in geostrophic balance. Furthermore, it forms a bridge between open ocean MSS and in situ measurements of mean sea level at or close to land, it contributes to the mapping of the geoid and the marine gravity field, and it is essential for connecting tidal nautical chart datums to physical height systems or global geodetic reference frames. In this study, we determine a coastal MSS with an associated error field for Norway. The MSS is solely based on new-generation altimetry data, i.e., SAR(In) data from Sentinel-3A and CryoSat-2, as well as Ka-band data from SARAL/AltiKa. The data sets partly overlap in time and cover the time period from 2010 to 2017 inclusive. We have chosen these altimeters because they represent evolutions of conventional altimetry, with reduced footprint sizes as a main benefit. This is especially advantageous in the coastal zone, as a smaller footprint reduces the probability of radar pulses being contaminated by energy backscattered from land areas. The satellite missions were harmonized by applying inter-mission biases determined in a regional crossover analysis. Furthermore, in a zone closer to land than 25 km, we have replaced the global ocean tide model with a regional ocean tide model provided by the Norwegian Mapping Authority (NMA). We use an optimal interpolation technique to determine a coastal MSS grid and discuss it in context of the estimated error field. We assess our coastal MSS by comparison to state-of-the-art MSS products along three sections perpendicular to the coast, as well as ellipsoidal mean sea level as observed by an array of permanent tide gauges within the study area. In addition, we assess a higher-resolution version of our MSS in the NMA testbed for vertical datums, by comparison with temporary tide gauges. We find that the coastal MSS outperforms the global MSS models directly at the coast, with standard deviations of differences of ~ 8 cm to the tide gauges, compared to 14–22 cm, obtained with the global MSS models. All MSS models largely agree along three sections perpendicular to the coast, with standard deviations of differences of 2–4 cm. The higher-resolution version of the coastal MSS performs similarly to the coastal MSS in comparison with the temporary tide gauges (standard deviation of differences of ~ 8 cm), but its formal error field also quantifies large uncertainties at the coast and in the fjords, mainly due to the lack of altimetry observations. A trustworthy error field is decisive for the combination of altimetry with other sea-level observations.

Principles of defining and recording data on structures permanently attached to buildings and their influence on coherence of cadastral data on buildings in Poland

Abstract The provisions of the geodetic law contain the term “Structures permanently attached to buildings”. These are elements that make up a set of attributes of buildings. At present, attributes of buildings are very complex, giving rise to discussion in the surveying environment. Many of them are impossible to be unambiguously and immediately defined by the surveyor. The surveyor is obliged to identify structures permanently attached to buildings, to define them, and to enter these structures with all their attributes into appropriate databases. This research paper presents the analysis consisting of certain aspects related to an attempt to define these attributes and to determine the principles of assigning their definitions to construction realities. For this purpose, the legal regulations and case-law concerning the studied attributes were referred to. Then, symbolic representation for the presented structures was analysed, as regards its use on geodetic maps. An important element influencing the introduced changes was identified, which is a sign of the times, i.e. digitization of the geodetic and cartographic documentation database. Finally, the Author proposed what changes should be made with respect to the amount of the information collected on structures permanently attached to buildings, as well as to the methods of their presentation on maps.

Geodetic Survey and Mapping in the Puräëas

Geodetic Survey and Mapping in the Puräëas

Aerogeodesis monitoring of potential areas of spontaneous combustion of the forest

The subject matter of the article is method for detecting potential zones of forest tracts spontaneous combustion using remote sensing data of the Earth. Aim of the article is to show how to increase the speed of decision-making to prevent negative consequences caused by spontaneous combustion of forest areas without a source of fire brought in from outside. The object of the research is a comprehensive analysis of the aerogeodesic monitoring data and contact measurements to identify and localize on the satellite images areas with high fire potential in the presence of a fire source directly in the territory of a possible fire. The methods used are the positions of general physics and higher geodesy, the basics of digital image processing and thematic interpretation. Results of research. The main factors affecting the process of autoignition of forest tracts are analyzed. A method of aerogeodetic monitoring, which is based on a map of thunderstorm activity, is presented. Method is based on remote observations of thunderstorms. At the same time, the map reflects the position of active thunderstorm cells in space and the projection of their coordinates on the geodetic map of the forest and is also a route for the purposeful search and elimination of local sources of fire. In order to be able to make quick decisions related to the prevention of negative consequences, an approach is used in which thunder cells are diagnosed for the purpose of assessing fire hazard by their ability to activate the process of origin of local sources of fire. In this case, we consider such controlled parameters as - the intensity of the electric field of the thunderstorm cell and the coordinates of its spatial position with respect to the forest area. Conclusion: to identify the origination of local sources of fire in the localization of possible autoignition zones, a relationship of thunderstorm clouds with the formation of the CCD was established. Aerogeodesic monitoring of the CCD is the basis for the operative estimates obtaining of the current object state of observation and prediction of the fire hazard level. The negative impact of forest fires on climate change, both local and global, is quite significant. Insufficient knowledge of this aspect requires further collection of material and its analysis, together with little-known "indirect" factors that cause spontaneous combustion of forest tracts and their individual sites.

Towards global space geodetic mapping of the dynamic deformation field after great earthquakes

AbstractGPS systems can be used as seismometers by sampling ground positions to detect travelling seismic waves. Data from dense geodetic networks near large earthquakes have been used to improve magnitude estimates, for tsunami warning, and to better understand the rupture processes. Here, we present 1 Hz GPS records of the March 11th, 2011, Mw = 9.0 Tohoku earthquake at unprecedented teleseismic distances. The spatial and temporal variations of the three‐dimensional GPS displacement vector field show various body waves, Love and Rayleigh surface waves along the direct path, and Love waves from the more than 31 000 km long major arc path. These results suggest that seismic wavefields can be mapped at teleseismic distances globally using space geodesy and could thus be used for source and structural studies. Data from numerous real‐time kinematic GPS networks could be combined to show the displacement field, giving unparalleled views of Earth's response to large earthquakes.

ІНВЕНТАРИЗАЦІЯ ЗЕМЕЛЬ СІЛЬСЬКОГОСПОДАРСЬКОГО ПРИЗНАЧЕННЯ НА ОСНОВІ ВИКОРИСТАННЯ НОВІТНІХ ІНФОРМАЦІЙНИХ ТЕХНОЛОГІЙ

The article investigates the methodological apparatus of agricultural land inventory using the latest information technology. It has been established that due to irrational use of land resources on agricultural lands there is a tendency of erosion processes development, leading to loss of soil fertility. Therefore, there is a necessity of carrying out inventory of the given type of lands. In the process of research the initial data for carrying out inventory of the agricultural lands has been designated. In the course of the study, the main obstacles to carrying out an inventory of agricultural lands have been identified and their analysis has been carried out. It has been pointed out that modern requirements for the quality and promptness of inventories involve the use of highly effective and innovative technologies at all stages of the inventory. These requirements are defined by detailed development of documentation, economic and ecological evaluation of lands and organization of permanent collection of necessary information with subsequent formation of electronic databases. The analysis of legal and methodological support of the land inventory process has been carried out. The methodology of agricultural land inventory with the help of information technologies has been developed. It is indicated that in order to create a set of soil protection measures, to encourage owners and tenants of land plots to rational use, protection, effective management of land resources it is necessary to have information on their qualitative and quantitative condition and location on the geodetic map. Such information can be obtained by using the latest information technologies, in particular by combining the interactive land resources map with a single geo- information database and a three-dimensional model of agricultural land inventory. The app Mapinfo Professional should be used for this combination. In summary, it is stated that an agricultural land inventory is the starting point for land planning aimed at land development, the elimination of land deficiencies and the transition to efficient and economically viable land use.

물리탐사 실무자를 위한 측지 좌표계와 지도 투영의 이해

물리탐사 실무자를 위한 측지 좌표계와 지도 투영의 이해

Мұнай кен орындарының картографиялануын геодезиялық қамтамасыз ету (Теңіз мұнай кен орны мысалында)

Мұнай кен орындарының картографиялануын геодезиялық қамтамасыз ету (Теңіз мұнай кен орны мысалында)

Survey of Geodetic Mapping Methods: Geodetic Approaches to Mapping and the Relationship to Graph-Based SLAM

The ability to simultaneously localize a robot and build a map of the environment is central to most robotics applications, and the problem is often referred to as simultaneous localization and mapping (SLAM). Robotics researchers have proposed a large variety of solutions allowing robots to build maps and use them for navigation. In addition, the geodetic community has addressed large-scale map building for centuries, computing maps that span across continents. These large-scale mapping processes had to deal with several challenges that are similar to those of the robotics community. In this article, we explain key geodetic map building methods that we believe are relevant for robot mapping. We also aim at providing a geodetic perspective on current state-of-the-art SLAM methods and identifying similarities both in terms of challenges faced and the solutions proposed by both communities. The central goal of this article is to connect both fields and enable future synergies between them.

Geomorphological evolution of the plain between the Livenza and Piave Rivers in the sixteenth and seventeenth centuries inferred by historical maps analysis (Mainland of Venice, Northeastern Italy)

The ancient hydrographical network and geomorphological framework of the fluvial and coastal plain encompassed between the Livenza and Piave Rivers in the mainland of Venice (Northeastern Italy) were reconstructed, based on historical maps, georeferenced, and overlaid on available geomorphological maps and aerial photographs. A selection of 59 maps was accurately analyzed (32 from the sixteenth century, 31 from the seventeenth century, and 6 from the eighteenth century). They were selected by author, commitment, date, and scale, from among more than 1000 maps edited by Savi e Esecutori alle Acque (the ‘hydrographical’ service during the Republic of Venice) in the 16th and seventeenth century. The most representatives (7 from the sixteenth century and 6 from the seventeenth century) were georeferenced and redrawn. Finally, four 1:50.000 maps were created, picturing the ancient morphology and hydrographical network in the years 1550, 1600, 1650, and 1700, covering an area of about 130 square kilometers. Geographical information was compared with historical documents and geological, geomorphological, and geochronological data. Further comparison of geodetic maps from the eighteenth to the twenty-first century produced new maps with important information on the paleogeographical and environmental framework across two centuries, and particularly on the artificial diversion projects performed by the Venetian Republic, their effectiveness, and the geomorphological changes both related to human intervention and recent climatic changes.

Mapping as a Spatial Data Source

Abstract The basic database for a geographic information system (BD GIS) forms the core of a national spatial data infrastructure. Nowadays decisions are being made about the potential data sources for additional data updates and refinement of the BD GIS. Will the data from departmental or other information system administrators serve for this purpose? This paper gives an answer as to whether it is advisable to use “geodetic mapping” (the results realized in the process of land consolidation) or “cadastral mapping” (the results realized in the process of the renewal of cadastral documentation by new mapping) for additional data updates. In our analysis we focus on the quality parameters at the individual data element level, namely the positional accuracy, attribute accuracy, logical consistency, and data resolution. The results of the analysis are compared with the contents of the Object Class Catalog of BD GIS (OCC), which describes the group of objects managed by BD GIS and defines the data collection methods, types of geometry and its properties.

India and Sunda plates motion and deformation along their boundary in Myanmar determined by GPS

Using a regional GPS data set including ∼190 stations in Asia, from Nepal to eastern Indonesia and spanning 11 years, we update the present‐day relative motion between the Indian and Sundaland plates and discuss the deformation taking place between them in Myanmar. Revisiting measurements acquired on the Main Boundary Thrust in Nepal, it appears that points in southern Nepal exhibit negligible deformation with respect to mainland India. Including these points, using a longer time span than previous studies, and making an accurate geodetic mapping in the newest reference frame allows us to refine the present‐day Indian motion. Our results confirm that the current motion of India is slower than predicted by the NUVEL‐1A model, and in addition our India‐Eurasia motion is significantly (∼5 mm/yr) slower than previous geodetic determinations. This new Indian motion, combined with a refined determination of the Sundaland motion, gives way to a relative India‐Sunda angular velocity of 20.2°N, 26.1°E, 0.370°/Myr in ITRF2000, predicting a relative motion of 35 mm/yr oriented N10° at the latitude of Myanmar. There, the Sagaing Fault accommodates only 18 mm/yr of right‐lateral strike slip, only half of the shear component of motion. We present two models addressing how and where the remaining deformation may occur. A first model of distributed deformation implies convergence on the Arakan subduction (the northern continuation of the now famous Sumatra‐Andaman Trench) and wrench faulting in the Arakan wedge. The second model uses localized deformation, where deformation observed west of the Sagaing Fault is entirely due to elastic loading on a faster and oblique Arakan subduction (23 mm/yr). This latter model predicts that a major earthquake ofMw8.5 may occur every century on this segment of the subduction.

The Ghost of an Earthquake

Seismic activity can cause Earth9s crust and upper mantle to deform and then relax slowly, and this relaxation can be detected decades after the original event. In his Perspective, Hammond discusses results reported in the same issue by Gourmelen and Amelung in which satellite-based radar (InSAR) was used to detect the surface deformation in the Basin and Range province of the western United States caused by earthquakes in the early to mid-20th century. The data indicate that disagreements between geodetic mapping (such as obtained by Global Positioning System measurements) and paleoseismic observations may be explained by postseismic relaxation. Moreover, the results suggest that magnitude information about past earthquakes might be retrieved by such postseismic analysis.