The development of web applications that manipulate geo-referenced information is often supported by Application Programming Interfaces (APIs), allowing a fast development cycle for high quality applications. APIs can be used by programmers with different expertise levels and choosing an adequate API may have a dramatic impact on the productivity achieved by those programmers. Our goal is to co...

This paper presents a generalization methodology to derive multi-scale GEODATA through an evaluation of ESRI ArcGIS software that was used as a testbed based on the principles of generalization. It focuses on integration and utilization of generalization operators in order to generalize a road network database and produce small scale maps at 1:500 000 and 1:1 000 000 from GEODATA TOPO-250K Ser...

This data article contains data related to the research article entitled "Global land cover classification based on microwave polarization and gradient ratio (MPGR)" [1] and "Microwave polarization and gradient ratio (MPGR) for global land surface phenology" [2]. This data article presents land surface characteristics and snow cover variation information from sensors like EOS Advanced Microwave...

In this study, we simulated the expansion of the São Paulo Metropolitan Area (SPMA)— the largest metropolitan area in Brazil — by the year 2030 using the Dinamica EGO software with data extracted from Landsat TM 7 (orbit point 219 076, resolution 30 × 30 m). Based on the urban area in 2008, we used an urban growth scenario to analyze urban expansion up to 2030. Subsequently, we used ArcGIS to i...

A Geographical Information System (GIS) provides a powerful collection of tools for the management and visualization of spatial data. These tools can be even more powerful when they are integrated with methods for spatial data analysis. In this context, we provide several examples that show the power of exploratory spatial data analysis (ESDA) within a GIS and how this can provide the foundatio...

The building of virtual reality system for the opencast mine is a complicated and systemic project. The building process of virtual system includes data collection, GIS geodatabase, model designing and raster textures making. GIS data is from field survey, maps, and remote sensing images. The import phase is the building of kinds of models in different environment. This paper introduced several...

Probability maps are used to define areas with high and low certainty of exceeding a threshold value. The most popular methods for creating these maps are variants of indicator kriging. However, such methods are questionable when the data exhibit a trend or contain measurement errors, the latter of which is common in most data sets. This paper presents an alternative approach that maps the risk...

This study focuses on the development of a web-based GIS for public healthcare system. The development of this system is motivated to provide opportunities for the healthcare workers to gain access to vital information that can aid him/her in the location of viable hospitals for the patients to fully enjoy available enhanced healthcare services. Currently, three major problems still exist in th...

The utilization of ESRI's ArcGIS software greatly facilitates the management of cultural resources on Federal lands. Correlation between archaeological sites and environmental variables can be rapidly accomplished through the analysis of both vector and raster data sets. The ability to join multiple feature classes based on spatial location has greatly aided the identification of areas of high,...

In recent years, the DIDSON (Dual-frequency IDentification SONar),which can provide almost-video-quality images to identify objects even in turbid water has been used in enumerating fish populations, underwater structures inspection, oil/gas leakage detection and identification, underwater security, evidence searching, ship’s hulls and ports safety inspection, and underwater navigation and so o...