Thematic Cartography

2021 ◽  
pp. 213-249
Author(s):  
Nan Jiang
Keyword(s):  
Thematic Cartography

scholarly journals 2 Generación del mapa de cobertura y uso del suelo de la provincia del Azuay

2017 ◽  
pp. 23-37
Author(s):  
Carlos Tenesaca Pacheco ◽  
Toa Quinde Pomavilla ◽  
Gabriela Delgado Orellana ◽  
Edgar Toledo López ◽  
Omar Delgado Inga
Keyword(s):  
Image Processing ◽  
Land Use ◽  
Digital Image Processing ◽  
Digital Image ◽  
Vegetation Cover ◽  
Provincial Government ◽  
Thematic Cartography ◽  
Three Stages ◽  
Definition Of ◽  
Sistemas De Informacion

La Universidad del Azuay, a través del Instituto de Estudios de Régimen Seccional del Ecuador (IERSE), suscribió un convenio de cooperación interinstitucional con el Gobierno Provincial del Azuay para la generación del “Mapa de Cobertura Vegetal y Uso de Suelo de la provincia del Azuay, a escala 1:5.000”, con base en las ortofotogra fías del año 2010, generadas por el proyecto SIGTIERRAS del Ministerio de Agricultura, Ganadería, Acuacultura y Pesca (MAGAP). La generación de la cartografía temática se realizó en tres etapas: a) recopilación de información de ortofotografías suministradas por la SENPLADES; b) definición de la leyenda de trabajo realizada en base a la información del mapa de cobertura y uso del suelo, generado por el MAGAP-MAE 2015; y c) digitalización de elementos geográficos y tratamiento digital de imágenes, la cual se realizó mediante el uso de sistemas de información geográfica (SIG) obteniendo como resultado 33 capas de información de elementos geográficos naturales y antrópicos.Palabras clave:Cobertura vegetal, uso del suelo, ortofotografía, provincia del Azuay. AbstractThe University of Azuay, through the Institute of Studies of Sectional Regime of Ecuador (IERSE), signed an agreement of interinstitutional cooperation with the Provincial Government of Azuay for the generation of the “Map of Vegetation Cover and Land Use of the province of Azuay, scale 1: 5,000” Based on the 2010 orthophotographs generated by the SIGTIERRAS project of the Ministry of Agriculture, Livestock, Aquaculture and Fisheries (MAGAP). The generation of thematic cartography was carried out in three stages: A) compilation of orthophoto information provided by SENPLADES; B) definition of the work legend based on the information of the map of coverage and land use generated by MAGAP-MAE 2015; and c) digitalization of geographic elements and digital image processing which was done through the use of geographic information systems (GIS) Resulting in 33 layers of information from natural and man-made geographic elements.Keywords:Vegetal cover, land use, orthophotography, province of Azuay.

Assessing the Existing Vegetation Around Abandoned Mining Areas With Potentially Toxic Heavy Metals

2021 ◽  
pp. 14-31
Author(s):  
José Manuel Naranjo Gómez ◽  
José Cabezas Fernández ◽  
Rui Alexandre Castanho ◽  
Carlos José Pinto Gomes
Keyword(s):  
Heavy Metals ◽  
Geographic Information Systems ◽  
Geographic Information ◽  
Geospatial Analysis ◽  
Abandoned Mines ◽  
Toxic Heavy Metals ◽  
Mining Areas ◽  
Geospatial Database ◽  
Thematic Cartography ◽  
Physical Consequences

In abandoned mining areas, heavy metals may exist. Those heavy metals can cause physical consequences and death. Through the use of geographic information systems (GIS), the environmental diagnosis of vegetation potentially affected by the presence of very toxic heavy metals in abandoned mining areas in Extremadura was conducted. Initially, graphic and alphanumeric information was obtained from numerous sources, and the geospatial database generated was analyzed, allowing the location of abandoned mines. Subsequently, the mines were classified according to the degree of toxicity of the heavy metals that had been exploited. Then, taking into account the mines whose heavy metals were considered very toxic, a geospatial analysis was performed using concentric buffers at 1, 5, 10, 20, 40, and 60 kilometres. The results obtained made it possible to obtain thematic cartography representative of the areas potentially affected. The proportion of vegetation potentially affected, has been classified according to the existing vegetation series and climatic belts.

Thematic Cartography: A Key Course in Geospatial Engineering

2016 ◽  
pp. 339-355
Author(s):  
Chrysoula Boutoura ◽  
Alexandra Kousoulakou ◽  
Angeliki Tsorlini
Keyword(s):  
Thematic Cartography

scholarly journals Numbers on Thematic Maps: Helpful Simplicity or Too Raw to Be Useful for Map Reading?

2020 ◽  
Vol 9 (7) ◽  
pp. 415
Author(s):  
Jolanta Korycka-Skorupa ◽  
Izabela Gołębiowska
Keyword(s):  
Empirical Study ◽  
Quantitative Information ◽  
Small Scale ◽  
Single Variable ◽  
Data Presentation ◽  
Map Reading ◽  
Frequent Use ◽  
Independent Form ◽  
Thematic Cartography ◽  
Bare Bones

As the development of small-scale thematic cartography continues, there is a growing interest in simple graphic solutions, e.g., in the form of numerical values presented on maps to replace or complement well-established quantitative cartographic methods of presentation. Numbers on maps are used as an independent form of data presentation or function as a supplement to the cartographic presentation, becoming a legend placed directly on the map. Despite the frequent use of numbers on maps, this relatively simple form of presentation has not been extensively empirically evaluated. This article presents the results of an empirical study aimed at comparing the usability of numbers on maps for the presentation of quantitative information to frequently used proportional symbols, for simple map-reading tasks. The study showed that the use of numbers on single-variable and two-variable maps results in a greater number of correct answers and also often an improved response time compared to the use of proportional symbols. Interestingly, the introduction of different sizes of numbers did not significantly affect their usability. Thus, it has been proven that—for some tasks—map users accept this bare-bones version of data presentation, often demonstrating a higher level of preference for it than for proportional symbols.

scholarly journals Transformation of Thematic Cartography Domain Ontology into Java Interfaces and Clasess / Transformace Doménové Ontologie Tematické Kartografie Na Java Rozhraní A Třídy

2011 ◽  
Vol 57 (4) ◽  
pp. 35-46
Author(s):  
Tomáš Peňáz ◽  
Radek Dostál
Keyword(s):  
Intelligent System ◽  
Pilot Project ◽  
Declarative Knowledge ◽  
Program Code ◽  
Thematic Map ◽  
Software Application ◽  
Java Programming ◽  
Java Language ◽  
Thematic Cartography ◽  
Java Code

Abstract The article deals with the transformation of an experimental ontology, classifying selected declarative knowledge for the domain of thematic cartography, into classes and interfaces of the Java language. The reason for this transformation is to transfer the declarative knowledge from the field of thematic cartography into the form of a program code in the Java programming language. The resulting program code containing declarations of interfaces and classes will be further used for creating a software application for an intelligent system for the interactive support of thematic map creation. The upcoming pilot project of this knowledge system is designed for the users without necessary cartographic knowledge, which will allow them to create interactively thematic maps and provide them with the support. The purpose of the use of such a tool is to prevent the users from deviating from established cartographic rules and avoid the occurrence of gross errors in resulting maps. A properly compiled knowledge ontology facilitates the design of the prepared intelligent cartographic application, as the use of cartographic knowledge is enabled based on the automated transformation into the program code in the Java language. The generated program code contains declarations of basic concepts of thematic cartography, their structuring into classes corresponding to the source structures described in the ontology. The code also contains descriptions vertical and horizontal relations between the declared classes and also the interface for access to these classes and relations. The automated transformation of ontology into the Java code is not completely lossless. The examples of a transformation of individual components of ontology (classes, individuals, and object and datatype properties) into interfaces and classes in Java show the differences occurred during the transfer of the declarative knowledge into the program code. From these examples it is clear that the elements of ontology component description are or are not transformed into the Java code in full. The article proposes recommendations how to optimize the knowledge description on the part of ontology in order to minimize possible losses of the transformation of knowledge into the Java code

New Approaches in Thematic Cartography

2010 ◽  
Author(s):  
Colette Cauvin ◽  
Francisco Escobar ◽  
Aziz Serradj
Keyword(s):  
New Approaches ◽  
Thematic Cartography

Practical Handbook of Thematic Cartography

2020 ◽  
Author(s):  
Nicolas Lambert ◽  
Christine Zanin
Keyword(s):  
Thematic Cartography
Sign in / Sign up

Export Citation Format

Share Document