This paper describes GPS Workstation, a general purpose navigation software which requires a low-cost GPS connected to the computer. It provides an integrated display of positioning data along with satellite positions...This paper describes GPS Workstation, a general purpose navigation software which requires a low-cost GPS connected to the computer. It provides an integrated display of positioning data along with satellite positions, their signal strengths and data quality parameters. The software can be used for static point averaging of GPS data to get more precise positioning and real-time mapping of roads and tracks. It supports output of data in keyhole markup language (KML) as well as other formats for visualization of acquired data on Google Earth and geographic information systems. It can also be used to determine geo-referencing errors in Google Earth imagery for an area and can compensate the error by applying a constant X, Y shift. The software is available for distribution under the free software license.展开更多
There has been a worldwide revolution in geoscientific data availability and access.An effectively infinite and instantaneous free access to geoscientific data from the World Wide System of Geoscience Data Centers and...There has been a worldwide revolution in geoscientific data availability and access.An effectively infinite and instantaneous free access to geoscientific data from the World Wide System of Geoscience Data Centers and Virtual Observatories is available.In addition,national databanks and commercially available large exploration data-sets also exist.These distributed data resources impose challenges for the future to move toward their objective integration and visualization to discover new knowledge.Such advancements can facilitate meaningful interpretations and decision-making for the benefit of society at global and local scales.This article presents the Digital Earth initiative at a national level to address multiple domains,such as effective management of natural resources,interactive planning of exploration activities and monitoring,mapping and mitigation of natural hazards.It discusses a distributed geospatial data infrastructure and its importance in geoscientific data integration for efficient and interactive data retrieval,analysis and visualization.Some examples are presented to demonstrate the advantages of integrated visualization in geoscientific analysis.展开更多
文摘This paper describes GPS Workstation, a general purpose navigation software which requires a low-cost GPS connected to the computer. It provides an integrated display of positioning data along with satellite positions, their signal strengths and data quality parameters. The software can be used for static point averaging of GPS data to get more precise positioning and real-time mapping of roads and tracks. It supports output of data in keyhole markup language (KML) as well as other formats for visualization of acquired data on Google Earth and geographic information systems. It can also be used to determine geo-referencing errors in Google Earth imagery for an area and can compensate the error by applying a constant X, Y shift. The software is available for distribution under the free software license.
文摘There has been a worldwide revolution in geoscientific data availability and access.An effectively infinite and instantaneous free access to geoscientific data from the World Wide System of Geoscience Data Centers and Virtual Observatories is available.In addition,national databanks and commercially available large exploration data-sets also exist.These distributed data resources impose challenges for the future to move toward their objective integration and visualization to discover new knowledge.Such advancements can facilitate meaningful interpretations and decision-making for the benefit of society at global and local scales.This article presents the Digital Earth initiative at a national level to address multiple domains,such as effective management of natural resources,interactive planning of exploration activities and monitoring,mapping and mitigation of natural hazards.It discusses a distributed geospatial data infrastructure and its importance in geoscientific data integration for efficient and interactive data retrieval,analysis and visualization.Some examples are presented to demonstrate the advantages of integrated visualization in geoscientific analysis.
