The displacement of Global Navigation Satellite System (GNSS) station contains the information surface elastic deformation caused by variation land water reserves. This paper selects long-term coordinate series data 671 International GNSS Service (IGS) reference stations distributed globally under framework World Geodetic 1984 (WGS84) from 2000 to 2021. Different noise model combinations are us...

Abstract. The knowledge of the geoid undulation, height relative to a given ellipsoid reference, is fundamental transform ellipsoidal heights into orthometric heights. Global undulation models developed from satellite gravity measurements appropriately integrated with other data, are free accessible in internet, but their accuracy may be inadequate for specific applications. Earth Gravitational...

El uso de imágenes radar apertura sintética (SAR) representa unafuente valiosa información para caracterizar regiones geográficas susceptibles inundaciones, como en el sureste México, ya que éstas no son sensibles a condiciones nubosidad y/u oscuridad. En estainvestigación se presenta una metodología identificar cuerpos agua región del México. Se aplicaron tres algoritmosde aprendizaje automáti...

Accurate postal code maps could play an important role within GIS as the postal code has the potential to link the address description of buildings and their location in a certain global reference system. This relationship is possible in both directions: address matching and geocoding. These operators demand a certain mechanism in translating an exact geometric position (i.e. WGS84 coordinate) ...

The use of high-precision technology the global navigation satellite system (GNSS) has put forward task developing methods for creation and a new national open coordinate in Republic Uzbekistan. In country, up to now CS42 system, based on Krasovsky ellipsoid used geodetic works. Baltic normal heights (1977), tied mean sea level with zero mark Kronstadt tide gauge, was adopted as height datum. D...

This paper presents the results of an experimental-demonstrative research project summarizing three integrated products: interactive digital map; a reference and record keeping database system; set procedures to enforce unified application archaeological heritage protection legislation in Romania. The web-based constitutes permanent working tool available Romanian Ministry Culture territorial b...

Indoor navigation systems for common users have recently received a lot of interest. Since the penetration of indoor navigation applications and location-based services strongly relies on accurate indoor maps such as blueprints. Navigation or positioning systems have been widely developed for Location-Based Services (LBS) applications and it comes along with a keen demand of indoor floor plans ...