This paper describes the structure of JGrass-NewAge: a system for hydrological forecasting and modelling of water resources at the basin scale. It has been designed and implemented to emphasize the comparison of modelling solutions and reproduce hydrological modelling results in a straightforward manner. It is composed of two parts: (i) the data and result visualization system, based on the Geographic Information System uDig and (ii) the component-based modelling system, built on top of the Object Modelling System v3. Modelling components can be selected, adapted, and connected according to the needs of the modeller and then executed within the uDig spatial toolbox. Hence, the system provides an ideal and modern integration of models and GIS without invalidating existing solutions. Compared to traditional hydrological models, which are built upon monolithic code, JGrass-NewAge allows for multiple modelling solutions for the same physical process, provided they share similar input and output constraints. Modelling components are connected by means of a concise scripting language. Furthermore, the system utilizes the Pfafstetter numbering scheme to represent the digital watershed model; the adaption of this topological classification of a basin with respect to NewAge is explained in this paper. Finally, the system application for the Fort Cobb watershed and its results are presented.
While Google Earth has powerful capabilities for getting things done, sometimes it’s just fun to browse around and look at cool stuff. The folks at TwistedSifter just did that, and released a list of 50 amazing finds on Google Earth.
Implementing a Cloud-based GIS System for Agricultural Resource Management DirectionsMag.com (press release) The development of agricultural information application and integration system ensures that all the data on agriculture cloud database can...
Desde o início do ano, a utilização de imagens Bing requer uma chave Bing adquirida através da Microsoft. Antes de completar os passos abaixo, deverá contactar a Microsoft para obter uma chave, através do email email@example.com.
Este vídeo contém os passos para trocar projeções de WGS 1984 UTM Zone 22 N para SIRGAS 2000 UTM Zone 22 S no software livre QGIS 2.0. No problema em questão, temos imagens Landsat-8 orientadas ao Norte.
How Google Maps and Gmail Will Distort Human History Popular Mechanics The Internet has had more effect on maps, cartography, and the way we get around than anything else in two thousand years of map history.
En una entrada anterior veíamos una comparativa entre tres de los servidores web de mapas más utilizados (GeoServer, MapServer y ArcGIS for Server). En esta ocasión vamos a ver una prueba realizada a tres SIG de escritorio. En la publicación Assessing the Robustness of Web Feature Services Necessary to Satisfy the Requirements of Coastal Management Applications, de Jennifer R.…
Muchas veces has estado trabajando en un proyecto SIG y necesitas incluir imágenes aéreas y datos de los proveedores de mapas más conocidos en la nube como Google Earth, Bing Maps, OpenStreetMap, entre otros; la entrada Sincronizar ArcGIS con...
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