This paper presents an overview of the GIS and remote sensing applications in natural resources management in Bangladesh and the information were taken from secondary sources. The first national Agro-Ecological Zone (AEZ) database was prepared in the period from 1980 to 1987. The database contains information on the country's land resources including physiography, soils, climate, hydrology, cro...

The purpose of this paper is to discuss research directions in GIS. In doing so I will deliberately broaden the meaning of "GIS" to include a wide range of activities within the broad rubric of digital geographic information, since it seems to me that "GIS" is now generally used in that broad sense, rather than in the narrower sense of a software system designed specifically to store, retrieve,...

In order to solve these problems such as the demand of geographic information service and the short life of the embedded system, as well as network collapse, and so on, the embedded mobile crowd service systems based on opportunistic geological grid and dynamical split was proposed. Firstly, based on the characteristics of geographical spatial information resources and service time series, a mo...

Our goal is to improve the way in which Geographic Information System (GIS) databases are created, updated and utilized. We are building software systems that will enable users to rapidly and inexpensively acquire, update, analyze and visualize high-resolution digital elevation maps (DEM), ortho-images, and other GIS products from digital images collected by a wide range of aerial and satellite...

In some surveys, it is of interest to record geospatial data such as coordinates for housing unit locations, road networks, agricultural field boundaries, and water body boundaries as part of the survey data collection process. These data objects are represented as shape data (i.e., points, lines, polygons), and are inherently different from coded and fixed format questionnaire responses. Geogr...

GIS research has a continuing threaddevoted to classifying the operations performed by analytical software. Prior e€ orts to classify GIS operations have limitations and inconsistencies, often arising from an attempt to establish overly direct links between geographic procedures and arithmetical operations. The transformational view of cartography provides a more solid basis for classifying GIS...

background geographic information system (gis) software has been used in health care systems to display and analyze spatial pattern of diseases and health services. objectives this study was performed to assess spatial patterns of colon’s pathologic lesions based on the pathologic reports and assess whether it is possible to use gis software in health services. patients and methods archives of ...