2,372 research outputs found
Annals of GIS
The journal has been published since 1995 and until 2008 it had been published under the title Geographic Information Sciences. In 2009 it changed to Annals of GIS. It is the official organ of the international association of Chinese experts in geoinformation sciences and its publisher is Francis &Taylor.Časopis izlazi od 1995. i do 2008. izlazio je pod nazivom Geographic Information Sciences, a 2009. mijenja naziv u Annals of GIS. Časopis je glasilo međunarodne asocijacije kineskih stručnjaka u geoinformacijskim znanostima, a izdavač časopisa je Francis &Taylor
The Effects of Scenic and Environmental Amenities on Agricultural Land Values
Ascribing land value solely to productive capacity does not accurately capture the impact environmental amenities provide on western land prices. Agricultural land prices in Wyoming are estimated using a hedonic price model and Geographic Information Sciences (GIS) data. These GIS measurements include on-parcel wildlife and fish habitat, viewscape attributes and distance to protected federal lands. A feasible generalized least squares (FGLS) approach is used to address both spatial autocorrelation and heteroscedasticity. The estimation is robust and highly significant. Results indicate that amenities as well as productivity are significant in explaining land values for the sample analyzed. Such information is useful for landscape management in the face of amenity threatening parcel fragmentation.Environmental Economics and Policy, Land Economics/Use,
A Geographical Approach for Integrating Belief Networks and Geographic Information Sciences to Probabilistically Predict River Depth
Geography is, traditionally, a discipline dedicated to answering complex spatial questions. Although spatial statistical techniques, such as weighted regressions and weighted overlay analyses, are commonplace within geographical sciences, probabilistic reasoning, and uncertainty analyses are not typical. For example, belief networks are statistically robust and computationally powerful, but are not strongly integrated into geographic information systems. This is one of the reasons that belief networks have not been more widely utilized within the environmental sciences community. Geography’s traditional method of delivering information through maps provides a mechanism for conveying probabilities and uncertainties to decision makers in a clear, concise manner. This study will couple probabilistic methods with Geographic Information Sciences (GISc), resulting in a practical decision system framework. While the methods for building the decision system in this study are focused on the identification of environmental navigation hazards, the decision system framework concept is not bound by this study and can be applied to other complex environmental questions
Online Education of Public Participants in the Data Collection Process for the Monitoring of Giant Hogweed in Latvia
Utilization of Public Participation with Geographic Information Sciences is a method intended to document the locations and spread of poisonous, invasive Giant Hogweed in Latvia. To reach students in an international setting, a website and tutorials trained participants about the characteristics and dangers of the plant, GPS concepts, and the data collection process. To ensure safe and accurate data collection, students were tested on their mastery of educational materials, evaluated on their ability to collect data in the field, and were questioned about their experience with the project. The results determined that students who take the online tutorial become better research partners, while also exploring issues with the educational and instructional components and overall flow of the project
A conceptual model for submarine feature description and generalisation in nautical chart production
The conference is co-organized by Institute of Space and Earth Information Science, The Chinese University of Hong Kong, National Remote Sensing Center of China and The International Association of Chinese Professionals in Geographic Information Sciences (CPGIS).2011-2012 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe
Moving mountains : a study examining long-term impacts of mountaintop removal coal mining on mortality in the Appalachian region using geographic information sciences techniques.
Over the last hundred years, the Appalachian region has been dominated by the coal industry. It has also been and currently is one of the unhealthiest regions in the United States. Recent scholarship has examined the relationship between coal mining and health and mortality rates in the Appalachian region. The first study incorporates air quality and pollution data to examine if coal mining counties have higher levels of pollution and if this pollution contributes to mortality disadvantage. In the second study, I construct a population-based coal-exposure measure to better evaluate the relationship between coal mining and health I find that coal mining is a poor predictor of air quality and air pollution. However, there appears to be strong links between air pollution and particulate matter pollution. In the second study, I find that the coal-exposure measure for some types of mortality (all-cause, all-cancer, lung cancer, respiratory disease, cardiovascular disease) is more predictive than dichotomous county-level coal mining measures, particularly in explaining cross-county differences in mortality rates. However, I find limited support for the effectiveness of coal-exposure measures when examining links between coal mining and mortality rates
Willem Blaeu\u27s \u27Asia noviter delineata\u27: Expressions of Power through Naval Might and Natural Knowledge in Dutch Mapmaking
This paper situates Dutch mapmaker Willem Blaeu’s Asia noviter delineata—part of the Stuckenberg Map Collection in the Gettysburg College Special Collections—within the larger framework of Renaissance thought and a shifting colonial balance of power. The map’s pictorial marginalia expresses a Dutch quest for empirical knowledge that echoed contemporary cabinets of curiosities throughout early modern Europe. Similar to these cabinets, Blaeu’s map can be seen as a cartographic teatro mundi, used to propagate Dutch hegemony through both a robust naval presence and an expanding geographic and natural knowledge of the world
Online Mapping Tools for Geolocating Amish Settlements
This technical note demonstrates the value of using online mapping tools as a method of geolocating Amish settlements. Primarily using freely available Bing and Google maps and published lists of the addresses of Amish ministers, we geolocated 1,362 Amish households in Ohio and 1,203 in Pennsylvania, representing about 10% of Amish households in those states. From these data we were able to derive a population density map of the Amish across Ohio and Pennsylvania. We caution that our map is merely a model and based on several assumptions, but the product is a finer resolution map of Amish distribution than has previously been published. We add that the locations of Amish schools provide another promising avenue for geolocation of Amish settlements, but we were not able to locate sufficiently comprehensive lists to include them in our analysis
A MODEL OF FUZZY TOPOLOGICAL RELATIONS FOR SIMPLE SPATIAL OBJECTS IN GIS
The goal of this paper is to present a new model of fuzzy topological relations for simple spatial objects in Geographic Information Sciences (GIS). The concept of computational fuzzy topological space is applied to simple fuzzy objects to efficiently and more accurately solve fuzzy topological relations, extending and improving upon previous research in this area. Firstly, we propose a new definition for simple fuzzy line segments and simple fuzzy regions based on computational fuzzy topology. And then, we also propose a new model to compute fuzzy topological relations between simple spatial objects, an analysis of the new model exposes:(1) the topological relations of two simple crisp objects; (2) the topological relations between one simple crisp object and one simple fuzzy object; (3) the topological relations between two simple fuzzy objects. In the end, we have discussed some examples to demonstrate the validity of the new model, through an experiment and comparisons of existing models, we showed that the proposed method can make finer distinctions, as it is more expressive than the existing fuzzy models
The PLACE Toolkit: exposing geospatial ready digital collections
PLACE, the Position-based Library Archive Coordinate Explorer, is a University of New Hampshire geospatial data server and search interface that enables discovery of digital collections. Identifying geographic coordinates for “geospatial ready” digitized cultural heritage materials is key to the project.
Presented: Open Repositories 2017, Brisbane, Australia. June 27, 201
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