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EN
The paper presents a multi-phase and multi-stage methodology of 3D structural-parametric modelling and mapping that has been applied during implementation of the GAZGEOLMOD project. The core of the applied processing workflows is a 3D geological model constructed in Petrel, which functions as a spatial database for all kinds of geological models. The first phase of the workflow comprised an extended process of database project building that was very intensive at the beginning of the project and continued to its end. The second phase of processing consisted of a complex process of mapping and structural modelling that is performed in 8 stages, allowing for iterative improvements of model resolution. During the realization of stages 1 to 7, processing was run independently for the Baltic (BB), Podlasie (PB) and Lublin Basins (LB). The workflow included the following stages: (1) unification and digitization of published and on file analogue and digital, structural maps; (2) preliminary reinterpretation, including adjustment to stratigraphy data acquired from archives; (3) adjusting the maps to the primary results of seismic interpretation, mainly from archival data; (4) digitization and gridding of pre-existing palaeothickness maps and updates of them with data from boreholes completed after 2009; the reinterpretation of the palaeothickness maps into contemporary thickness maps; (5) elaboration of the primary structural 3D models for the three basins; (6) increasing of the stratigraphic resolution of models up to the rank of the geological epoch for Ordovician–Silurian strata; (7) conversion of basin-scale structural models into a 2D grid, and their merging into platform-scale surfaces, resulting in 45 structural and thickness maps; finally, they were adjusted to the results of seismic interpretation and sedimentological studies, obtained in the project; and (8) completion of the resulting structural models for each of the basins and for the entire Polish part of the East European Craton in several different versions. In the third phase of processing, parametric models of vitrinite reflectance (Ro) and Total Organic Carbon (TOC) were estimated.
EN
Environmental and social injustices in the extractive sector in Kwale County are rampant and there are limited citizen participatory mechanisms to address the injustices to enhance dialogue among stakeholders. Community exclusion from corporate governance has perpetuated environmental and social injustice causing mistrust and conflicts between communities and investors in mining areas. This study aimed to evaluate a digital mapping platform as a tool for community engagement. A participatory study approach was used where selected stakeholders were trained to use the digital mapping platform and then participated in the study. Mobile phone digital applications and Poi mapper data collection and management applications were used to generate and quantitatively analyse stakeholder responses which were instantly transmitted to a computer server. Digital mapping is interactive, elicited effective interactions among stakeholders and supported citizen participation to enforce corporate accountability.
EN
Digital subsurface mapping on a wide scale started in Poland at the beginning of the 1990s. A team of the Department of Fossil Fuels was engaged in this activity from its beginning. In the first stage simple techniques were based on digitalization of archival maps, which gradually were replaced by development of local and regional maps based on 2D grids. In that period the most significant achievements of the team were Geothermal Atlases of the Polish Lowlands. After 2006, 3D grid-based techniques, comprising static structural and parametric models, gradually replaced the 2D grid-based techniques. They were used in completion of the 3D grid-based models lying behind the maps presented in Geothermal Atlases of the western part of the Polish Carpathians, the Carpathian Foredeep and the eastern part of the Polish Carpathians. According to the world trends in the field of petroleum geology, quantitative petroleum resources assessments were carried out using 2D, 2.5 and 3D grid-based generation, migration and expulsion models. At the same time, numerous 3D static models for CCS purposed were developed. At present, our research moves toward better data integration, uncertainty assessment and 4D modelling for petroleum geology (especially unconventional hydrocarbons), geothermal resources and CCS purposes.
PL
Wzrost zainteresowania ujmowaniem i gospodarczym wykorzystaniem wód podziemnych zaliczonych do kopalin sprawia, że coraz liczniejsze nowe inwestycje pojawiają się zarówno na obszarach wcześniej intensywnie zagospodarowanych (Terma Hotel Spa w Bukowinie Tatrzańskiej, Terma Bania w Białce Tatrzańskiej itp.), jak i w innych regionach kraju (Krasnobród, Gołdap, Inowrocław itp.). Duże zróżnicowanie przestrzenne oraz dynamika wzrostu liczby inwestycji, zdecydowały o przygotowaniu przez Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy cyfrowej mapy zagospodarowania wód podziemnych zaliczonych do kopalin w Polsce. Ma ona charakter informacyjny, służący popularyzacji zagadnień związanych z tymi wodami. Mapa stanowi kartograficzną wizualizację informacji zgromadzonych w bazie danych przestrzennych, dzięki czemu wydawca może ją aktualizować i dostosowywać do wymagań odbiorców.
EN
Growing interest in the recognition and economic use of therapeutic and thermal waters makes appearance of a number of new investments located on an already heavily developed areas, as well as other regions of the country. Large spatial variation and dynamics of new projects’ emergence resulted in the preparation of the digital Map on Economic Use of Therapeutic and Thermal Waters in Poland by the Polish Geological Institute – National Research Institute. Its drawing up was aimed at popularization of information on these kind of waters. Due to preparing based on spatial data stored in the database it can be easily updated and adapted to the customers’ requirements.
PL
W pierwszej części artykułu omówiono błędy charakterystyczne dla etapów pozyskiwania danych pierwotnych (pomiary i badania terenowe) i przetwarzania ich do postaci wtórnej (prace kameralne), a następnie porównano wybrane kryteria oceny jakości materiałów źródłowych w ujęciu klasycznym (mapy i zbiory map „papierowych”) z cechami i standardami dokładności danych w GIS (dane numeryczne). W drugiej części artykułu przedstawiono kolejne etapy tworzenia mapy numerycznej (wprowadzania danych), skupiając się przede wszystkim na zaletach i wadach poszczególnych metod, procedur czy modeli, ich przydatności w rożnego typu badaniach oraz potencjalnych błędach i sposobach ich weryfikacji. W tym zakresie omówiono m.in.: skanowanie, kalibrację materiałów rastrowych, schematy pojęciowe (sposoby reprezentacji środowiska), wybór obiektów do badań porównawczych, wektoryzację i weryfikację topologii połączeń, generalizację graficzną i pojęciową oraz fazy normalizacji baz danych.
EN
In first part of the article discussed specific errors for stages of collecting raw data (measurements and field studies) and processing them to the secondary forms. Then the chosen criteria of evaluation quality of the source materials („paper” maps collection) with the standards of the GIS data accuracy were compared. In second part of the article, the next digital mapping stages (input data) were introduced. Mainly focus on advantages and defects of individual methods, procedures or models, their usefulness in the various researches as well as potential errors and their verification possibilities. It was described among others: scanning, raster calibration, environment representation methods (grid and vector models), the choice of objects to comparative studies, digitalization and vector topology verification, graphic and notional generalization and the database standardization.
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