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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Spatial analysis of vascular plants diversity mapping in GIS

Lacková, Barbora January 2013 (has links)
No description available.
2

Atlas cestovního ruchu jižních Čech / Atlas of tourism of the South Bohemian region

ŽOLNOVÁ, Nikola January 2009 (has links)
The diploma thesis goes into Tourism atlas of South Bohemian Region and its processing into a set of maps. I am describing a selection of tourist attractions as well as processing of map sheets in the beginning of the dissertation. Next part of the dissertation deals with basic characteristics of the defined area. I am also concentrating on the GIS points at issue and I am describing cartographic means of expression and map composition in this part. Before processing the atlas I had made a few designs of map sheets. Then I chose one design which served for making of the atlas. Tourism atlas is a principal part of the dissertation. It is formed out of 32 thematic maps based on tourist attractions. I have included the following thematic areas among selected attractions: nature attractions, protected areas, cultural heritage (castles, châteaux, strongholds, ruins, lookout towers, museums, galeries, UNESCO monuments, natural cultural heritage, urban conservation areas and reserves, rural conservation areas and reserves, and others).
3

Estimating the Carbon Fluxes using the CASA Model in the Southern United States

Rongali, Venkata Narendra Appala 01 May 2010 (has links)
A minute change in human body temperature can get one collapsed permanently. If this is the case with human body, one might wonder what would be the case with Earth. The result is the greenhouse. The main function of the greenhouse gases (GHG’s) is to tap energy from the sun and prevent the heat energy escaping to space, thus sustaining life on earth. Because of increased human activity, industrialization, and deforestation, the concentration of the GHG’s in the atmosphere has increased, resulting in a temperature rise. Considering the effects of temperature rise, caused by the GHG’s, one should know the ways to minimize them. In order to do this, an estimation of the amount of GHG’s is important. The CASA model is one such model that estimate the GHG’s and also the amount of carbon in the atmosphere by estimating the Net Ecosystem Productivity (NEP) and Net Primary Productivity (NPP).
4

Desenvolvimento de uma Interface em SIG para Suporte ao Dimensionamento HidrÃulico de Sistemas de Abastecimento de Ãgua / DEVELOPMENT OF AN INTERFACE IN SIG FOR SUPPORT TO THE HYDRAULICAL SIZING OF SYSTEMS OF WATER SUPPLY

Eulimar Cunha TibÃrcio 11 September 2006 (has links)
CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior / Os estudos realizados na Ãrea de Recursos HÃdricos sÃo geralmente modelos que precisam de dados fÃsicos e topogrÃficos que tradicionalmente sÃo obtidos nos mapas ou com pesquisas de campo. Recentemente, estas informaÃÃes estÃo sendo agregadas diretamente em Sistema de InformaÃÃo GeogrÃfica (SIG) devido aos avanÃos tecnolÃgicos desenvolvidos por estes sistemas e Ãs contÃnuas melhorias em modelo digital de terreno. Atualmente, esforÃos tÃm sido realizados para desenvolver interfaces em SIG que dÃem suporte ao trabalho de projetistas de sistemas de abastecimento de Ãgua e, tambÃm, constata-se a existÃncia de trabalhos com modelos hidrÃulicos aliados a SIG. Tendo em vista os avanÃos em tecnologia de software de SIG, esta pesquisa pretende mostrar a viabilidade do uso de Sistema de InformaÃÃo GeogrÃfica aplicado ao dimensionamento hidrÃulico de sistemas de abastecimento de Ãgua sob pressÃo atravÃs do desenvolvimento e aplicaÃÃo de uma interface incorporada a um SIG reconhecido internacionalmente pela comunidade cientÃfica que trabalha com dados espaciais (ArcMap) que utiliza rotinas do simulador hidrÃulico EPANET, permitindo, assim, a comunicaÃÃo entre estas duas tecnologias. Esta interface tem como importÃncia o fato de ter sido construÃda com ArcObjects (mesma plataforma de desenvolvimento da famÃlia de aplicativos ArcGIS Desktop do Environmental Systems Research Institute â ESRI); tem como caracterÃstica uma fÃcil interaÃÃo para digitalizar componentes hidrÃulicos por coordenadas, permitindo, assim, uma aproximaÃÃo de um modelo em anÃlise de uma situaÃÃo real, dimensionar componentes do sistema, fornecer informaÃÃo relacionada à operaÃÃo do sistema, selecionar opÃÃes de simulaÃÃo hidrÃulica, carregar o layout do sistema na Ãrea de trabalho do EPANET, visualizar a descriÃÃo-base do sistema, mostrar o relatÃrio da Ãltima simulaÃÃo, alterar duraÃÃo da simulaÃÃo, alterar diÃmetros de tubulaÃÃo, desfazer ediÃÃo de diÃmetros, gerar novo relatÃrio, visualizar os dados hidrÃulicos dos componentes apÃs cada simulaÃÃo, alterar componentes hidrÃulicos, mover componentes para coordenadas apropriadas, entre outros; tem como objetivo facilitar as atividades do projetista de sistema de distribuiÃÃo de Ãgua, dando, portanto, continuidade ao estudo de modelos hidrÃulicos aliados a ferramentas de geoprocessamento; tem, enfim, a possibilidade de ser continuamente melhorada para atender Ãs novas exigÃncias do projetista de redes de abastecimento de Ãgua. / The studies in water resources are models that need data gotten in the maps or research of field. Recently, these information are being added directly in Geographic Information System (GIS) due to the technological advances developed by these systems and to the continuous improvements in digital land model. Currently, efforts have been carried through to develop interfaces in GIS that give support to the work of designers of systems of water supply and, also, evidence it existence of works with hydraulical models allies the GIS. In view of the advances in technology of GIS software, this research it intends to show the viability of the use of GIS applied to the hydraulical sizing of systems of water supply under pressure through the development and application of a connected interface to the ArcMap that uses routines of hydraulical simulator EPANET, allowing, thus, the communication between these two technologies. This interface has as importance the fact to have been constructed with ArcObjects (same platform of development of the family of applications ArcGIS Desktop of the Environmental Systems Research Institute - ESRI); it has as characteristic an easy interaction to sketch hydraulical components through coordinates, allowing, thus, an approach of a model in analysis of a real situation, sizing of components of the system, to supply related information to the operation of the system, to select options of hydraulical simulation, to load the layout of the system in the area of work of the EPANET, to visualize the description-base of the system, to show the report of the last simulation, to visualize hydraulical data of the components each simulation, to modify hydraulical components, to move components for appropriate coordinates, among others; it has as objective to facilitate the activities of the designer of system of water distribution, giving, therefore, continuity to the study of hydraulical models allies the Geo-processing tools; it has, at last, the possibility of continuously being improved to take care of to the new requirements of the designer of nets of water supply.
5

Porovnání mapy pokrytí mobilního operátora s reálným pokrytím prostřednictvím GIS / Compare coverage maps of mobile operator with the real coverage in field through GIS

Slobodník, Šimon January 2014 (has links)
The objective of the diploma thesis is to compare the actual signal quality in selected locations with the coverage maps of the mobile operator. The places of interest with reduced level of signal strength are located in Brno and its surroundings. Theoretical part of the thesis discusses the issues of geographical information systems, GNSS technologies, mechanisms of signal propagation and mobile applications useful for surveying purposes. The practical part describes the communication with mobile operators, the process of data collection and processing the project using ArcMap software.
6

LiDAR-datans möjligheter : en studie av senglaciala strandvallar i nordöstra Skåne och sydvästra Blekinge / The oppurtunities of LiDAR-data : a study of late-glacial beach ridges in northwestern Scania and southwestern Blekinge

Eliasson, Benjamin, Nilsson, Philip January 2016 (has links)
Den relativt nya tekniken LiDAR har gjort det möjligt att undersöka och kartera landformer på ett mer effektivt sätt än tidigare. Syftet med arbetet var att undersöka hur väl LiDAR-data lämpar sig för att studera de strandvallar som finns i nordöstra Skåne och sydvästra Blekinge. Metoden har mestadels bestått av GIS-arbete i ArcMap, där vi i kartbilderna illustrerat terrängen med terrängskuggning alternativt terränglutning. Det vi fick ut från GIS-metoden har vi sedan kontrollerat ute i fält. Med LiDAR har vi fått en detaljrik bild över strandvallarna. Det har visat sig att terränglutning är den bäst lämpade metoden för det syfte vi arbetat mot. Dessa kartor har sedan gått att jämföra med tidigare forskning om hur strandvallarnas förekomst ser ut. Strandvallarna kan även kopplas till de strandförskjutningskurvor som tidigare gjorts i området. Slutligen kan vi konstatera att LiDAR är en utomordentlig metod för att studera strandvallar.
7

A New Lacunarity Analysis Add-In for ArcGIS

Huang, Pu 05 1900 (has links)
This thesis introduces a new lacunarity analysis add-in for ArcGIS.
8

Development of a decision support tool for evaluation of road assistance vehicle locations / Utveckling av ett beslutstödsverktyg för utvärdering av VägAssistansfordonsplaceringar

Andersson, Erica, Håkansson, Emelie January 2015 (has links)
Förväntningarna på en väl fungerande trafiksituation med få stopp på vägarna är idag höga i Sverige. Befolkningsmängden i Stockholm ökar ständigt vilket innebär en ökad reseefterfrågan som bidrar till ett högt belastat vägnät. Vägar i storstadsmiljö med hårt belastad trafik är känsliga för minsta störning eftersom det kan innebära en stor påverkan på hela nätverket och på så sätt beröra ett stort antal trafikanter. För att minimera störningar i vägnätet bedriver Trafik Stockholm som en del av deras arbete verksamheten VägAssistans. VägAssistans är ett användbart verktyg för att snabbt lösa störningar i vägnätet och behålla en god trafikmiljö på vägarna. Ur ett samhällsekonomiskt perspektiv är det viktigt att VägAssistansfordonen placeras så att fordonet är snabbt på plats vid en händelse för att minimera störningar i nätverket. För detta krävs korta inställelsetider till områden där hög frekvens av händelser förekommer. Dessutom är det även viktigt att fordonen placera så att samtliga vägar i nätverket kan nås inom en rimlig körtid. Syftet med detta examensarbete är att utveckla ett beslutstödsverktyg för utvärdering av VägAssistansfordonsplaceringar. Syftet innefattar även att för beslutstödsverktyget utveckla en efterfrågemodell för prognostisering av framtida händelser, en körtidsmodell för att generera körtider i nätverket samt att ta fram intressanta effektivitetsmått för utvärdering och jämförelse av olika fordonplaceringar. Beslutstödsverktyget som utvecklas i detta projekt anses vara till stor nytta för Trafik Stockholm vid utvärdering av Vägassistansfordonsplaceringar i Stockholm. Dessa utvärderingar kan användas som stöd för att strategiskt placera VägAssistansfordonen så att händelser servas snabbt för att minimera störningen i nätverket som händelsen ger upphov till. En snabbare servad händelse innebär att antalet berörda trafikanter minimeras vilket leder till en minskad samhällskostnad.
9

Prostorové modelování podnikatelského prostředí v mikroregionu Babí lom prostředky geografických IT

Vyplašil, Michal January 2010 (has links)
No description available.
10

Analýza změn land use ve vybraném území / Analysis of changes in land use in the selected area

KUČERA, Jaroslav January 2014 (has links)
This thesis deals with the analysis of changes in the selected area, specifically in the cadastral Vodňany. The aim of this study was to evaluate changes in the period between 1842 - 2011. As a bases were used maps of the 2nd military mappings, the state map derived of 1: 5000 and the current orthophoto updated in 2011. The maps of the 2nd military mappings were obtained using a WMS service of the National INSPIRE Geoportal, the state map derived orthophoto and the current drawn from the order of the portal CUZK. All work involving the preparation of maps, map outputs and associated data acquisition were made in the ArcMap 10 program. The obtained data were further processed, there were created tables and graphs that serves as an overview of land use changes in the area and they were all created in Microsoft Excel. This work tries to answer on why these changes occurred and what was the reason for the change of land use in the area.

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