Browsing by Subject "spatial database"

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Access status: Restricted ,
Analiza wydajności i optymalizacja przetwarzania chmur punktów w bazach danych przestrzennych
(Data obrony: 2017-07-10) Chrószcz, Aleksandra
Wydział Geologii, Geofizyki i Ochrony Środowiska
Niniejsza praca rozwija tematykę składowania oraz przetwarzania danych przestrzennych wraz z ich optymalizacją. Głównym celem było wskazanie najefektywniejszego systemu do zarządzania bazami danych, który w najszybszy sposób przetwarza i analizuje dane w formie chmury punktów, a następnie wybór metod optymalizacji. Spośród kilku baz danych (relacyjnych i nierelacyjnych) skupiono się na relacyjnej bazie PostgreSQL. Powodem tego wyboru była szeroka gama dedykowanych narzędzi wspierających pracę z danymi w postaci chmury punktów oraz wydajność bazy w przeprowadzonych testach. Eksperymentalne sprawdzenie bazy nierelacyjnej dowiodło, że zachowuje się ona wydajnie przy niewielu typach dokumentów. Dodatkowo na szybkość wykonywania zapytań miał wpływ rodzaj dysku, gdzie technologia SDD pokazała wyższość nad standardowym dyskiem HDD.
Access status: Open Access ,
Analysis of changes in drafting a base map in view of amendments to the provisions of law
(Wydawnictwa AGH, 2017) Buśko, Małgorzata
The main subject of the study is comparison to the standards for the preparation of the base map in view of the amendments to the legal provisions, which have been taking place in Poland over the last thirty years. The scope of the changes to the editing of the cartographic content of the base map was analyzed, with particular emphasis on the form and content of the presented descriptions. The map preparation standards were compared [8], based on the Technical Guideline K-1 of 1998, and the amending Regulation of 12 February 2013 on the database of the surveying records of public utilities, the database of topographic objects and the base map (hereinafter referred to as the BDOT Regulation, 2013) [14], as well as the amended Regulation of 2 November 2015 on the database of topographic objects and the base map (hereinafter referred to as the BDOT Regulation, 2015) [15]. These Regulations, in conjunction with the amendment to the Geodetic and Cartographic Law of 2014 [20], have resulted in historic 6 changes in the approach to the base map, signifi cantly changing the form of its records, the scope of the data to be covered, and the editing, i.e. its visual aspect. The current assumption is that the base map is in fact a report generated from six databases, kept and updated simultaneously [1, 6, 11]. The aforementioned comparison referred primarily to the descriptions, map editing, as well as to the conceptual level.
Access status: Open Access ,
Determination of optimal spatial databases for the area of Poland to the calculation of air pollutant dispersion using the CALMET / CALPUFF model
(2014) Oleniacz, Robert; Rzeszutek, Mateusz
This paper presents a methodology for the preparation of three-dimensional spatial data and land use data for the purpose of modeling pollutant dispersion in the ambient air using a group of geophysical preprocessors of the CALMET / CALPUFF modeling system and the GIS software. Some space information data sources available to Poland were specified and their characteristics and availability were discussed. Particular attention was turned to the SRTM3 and GTOPO30 elevation data as well as the CLC2006 and GLCC land use data, for the preparation of computational grids of different resolutions. Groups of programs which can be used in order to form computational grids based on the above-mentioned databases were identified. The discussed spatial data preparation procedure was used for the area of the city of Krakow and the surrounding area. As a result of the conducted activities, processed information on the terrain in the adopted computational area, possible to be used in the calculation of a three-dimensional meteorological grid (CALMET) and in the calculation of pollutant dispersion in the ambient air (CALPUFF) was obtained.