http://hdl.handle.net/10362/2259 2013-05-26T00:28:24Z 2013-05-26T00:28:24Z Pervin, Shiuli http://hdl.handle.net/10362/9276 2013-04-10T13:53:59Z 2013-01-30T00:00:00Z

Title: Semantic web approach for dealing with administrative boundary revisions: a case study of Dhaka City Authors: Pervin, Shiuli Abstract: Dhaka City is the capital of Bangladesh and boundary revisions of Dhaka city refers to the changes of Dhaka city administrative boundary or jurisdiction over time. Dhaka is growing very fast in terms of population and area. So, government is redefining city boundaries and also making big units into several parts for better city management. Now, the challenge is to deal with these changes of administrative regions that seem to be helpful to match with census record that comes out every ten to fifteen years. Dhaka city boundary revisions dataset contains data about the name of the administrative unit, type of administrative unit, year of establishment, year of data record, geometry of administrative unit defining the jurisdiction, type of revisions occurred in the administrative units, time of revisions and the number of subdivisions inside an administrative unit. This thesis aims to integrate Dhaka city boundary revision dataset using semantic web technology that preserves information about changes occurred in the Dhaka city boundary over time. Description: Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.

2013-01-30T00:00:00Z Mühlbauer, Stefan Ludwig http://hdl.handle.net/10362/9233 2013-04-04T14:18:21Z 2013-02-28T00:00:00Z

Title: Recent droughts and the impact of North Atlantic Oscillation in Iberia; a spatiotemporal analysis based on vegetation temperature condition Index (VTCI) Authors: Mühlbauer, Stefan Ludwig Abstract: Drought is a complex phenomenon that afflicts huge areas worldwide with high spatial and temporal variability. Being under influence of the Mediterranean climate the Iberian Peninsula is per se prone to droughts. In this study, we applied the Vegetation Condition Temperature Index for a spatiotemporal drought analysis in Iberia. As a compound remote sensing drought index VTCI incorporates information on Normalized Difference Vegetation Index (NDVI) and Land Surface Temperature (LST). Suchlike, it overcomes the disadvantage of NDVI, which faces a lagged vegetation response to droughts and makes it less suitable for real-time drought monitoring. We took advantage of the full range of the VTCI scale and thus describe soil moisture conditions from ‘very dry’ to ‘wet’. In order to study the effect of North Atlantic Oscillation on the establishment of droughts during spring and summer, we correlated VTCI with the NAO winter index of one year. The study was accomplished for the years 2001 until 2005; additionally we adjoined the years 2007 and 2010 for their strong positive (negative) NAO winter index. The results as presented in the VTCI time series illustrate a typical ‘Mediterranean’ pattern with humid springs and persistently dry summers inside the Mediterranean fraction of Iberia. At least two months in spring are regarded to be wet, though with a high temporal and spatial variability: One area can be wet in one year and dry in the next one. March often is drier than middle spring months exhibiting accumulated precipitation deficiency of winter months, whereas a weak start into the growing season can be determining for the crop harvest of one year. The summer months become persistently dry in the Mediterranean region, while the North and Northwest as well as high elevation areas generally obtain sufficient precipitation also during the warm season. Spring months are particularly important for vegetation growth in terms of water availability, though the spatial and temporal pattern changes considerably in the intra-annual perspective. We found a dipolar correlation between VTCI and NDVI particularly in April and June. In April the NW of Iberia shows a high negative correlation between NAO and VTCI, the SE a strong positive correlation. In June the pattern flips showing positive correlation in the NW and negative correlation in the SE. The other summer months exhibit a similar pattern as June though with less significant correlation, while the pattern during the spring months alters, which coincides with the climatic variability during this season. The correlation findings accord with observations from the VTCI time series: We gave the example of the Duero Basin in the NW, where in April (negative correlation) indeed NAO+ years were drier (due to decreased VTCI) than NAOyears (increased VTCI) and the SE exhibited the opposite behaviour. Similar findings can be evidenced for the NW and SE of Iberia in June and July and the Balearic Islands in March. In terms of land cover NAO influences geographical areas rather than certain land cover types, which can be explained by the widely human induced landscape pattern of Iberia. From the land use classes agricultural lands and low vegetation are the classes most vulnerable to droughts; forests are the most resilient land classes. The study of correlation between a certain NAO winter index and drought occurrences is particularly interesting for the development of an outlook system of soil moisture for the period of highest vegetation activity in spring. The study detected come correlations between NAO and VTCI that indeed find spatial response on Iberian landmass. Description: Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.

2013-02-28T00:00:00Z Sánchez, David González http://hdl.handle.net/10362/9210 2013-03-26T17:43:49Z 2013-02-28T00:00:00Z

Title: Behavior monitoring and behavioral exchange: an approach from geospatial technologies involving gamification techniques Authors: Sánchez, David González Abstract: In the last years the concerns about ecologic problems derived from human activities and CO2 emissions have increased, leading population to a rising awareness on green behavior. This paper discusses an approach to the evaluation and exchange of the green behavior of a community from the viewpoint of a project in the frame of smart cities, where the flow of information among the members of the community becomes a basic part of decision making. This approach is developed from a perspective based on mobile technologies, with the application of gamification techniques in order to get the community involved in the process of data acquisition, and with the final goal of making possible a behavioral exchange of the members of the community. Description: Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.

2013-02-28T00:00:00Z Antunes, Sara Costa http://hdl.handle.net/10362/9209 2013-03-26T17:16:57Z 2013-02-28T00:00:00Z

Title: Virtual Campus for the University of Jaume I, Castelló, Spain: 3D Modelling of the Campus Buildings using CityEngine Authors: Antunes, Sara Costa Abstract: The Virtual Smart Campus for the University of Jaume I – Visca Uji – is a project that aims to transform the University of Jaume I (UJi) into a “Smart Campus”. Several applications are part of the Smart Campus such as Uji Place Finder, Energy Consumption, Routes, Resources Management, and Indoor Mapping. Part of this project is the creation of the 3D model of the university buildings using Esri software — City Engine. This study analysed two 3D modeling approaches: procedural modeling language (CGA Shape) and manual modeling. The first, Computer Generated Architecture (CGA) shape is an extension of set grammars that have been applied in CG successfully over the years. And the second, CityEngine offers a set of shape creation and editing tools that allows a more intuitive and pragmatic 3D modeling technique. Both approaches have advantages and disadvantages, overall creating a 3D model by using procedural modelling language showed to be the more efficient and pragmatic method. Description: Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.

2013-02-28T00:00:00Z