Contents

          • Basics and Reference
          • Collections of Links
          • About The GPS Satellites - The SlideShow
          • About GPS Receivers
          • Precise Geodesy with GPS
          • Useful (Timely) Information
          • Eλληνικές Σελίδες - Greek Section

          Basics and Reference

          • GPS and Geodesy
          • The Global Positioning System (GPS): An Overview

          • The Global Positioning System (GPS)
            Elementary Tutorial by Aerospace Corporation

          • The Global Positioning System (GPS)
            How it Works, by Trimble Navigation

          • GPS Tutorial
          • US 1996 Federal Radionavigation Plan

          • GPS Projects Quality Management Tasks
          • GPS Receiver Independent Exchange (RINEX) Format Definitions

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          Useful (Timely) Information

          • Latest GPS Status Advisory-(NANU)
          • Summary of recent GPS Status Advisories
          • Visibility of GPS satellites from Athens, Greece
          • GPS almanacs at U.S. Coast Guard (USCG) (YUMA format)
          • GPS almanacs at the US Navy (YUMA format)

          • Article: D. Delikaraoglou (1997) "GPS-assisted operations in support of the new Hellenic Cadastre System: experiences to date"
          • The Current Use of the Global Positioning System by Land Surveyors
            An on-line report prepared by the Standing Committee No. 7 - Geographic Information Systems and Control Surveys, The Corporation of Land Surveyors of the Province of British Columbia,Canada, October 1997.

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          Collections of Links

          • Geomatics Organizations
            Διεθνείς και Eθνικοί Oργανισμοί συναφείς με τη Γεωπληροφορική

          • GPS Information Sources
          • NAVSTAR GPS Internet Connections
          • GPS Resource Library
          • GeoWeb for GPS, GIS and Remote Sensing

            Special Indices, Lists, etc.

          • EINet Galaxy's Pointers to Geoscience Resources
          • World-Wide Web Virtual Library: Earth Sciences
          • World-Wide Web Virtual Library: Geophysics
          • Yahoo: Earth Sciences
          • Yahoo: General Sciences
          • Geosciences Index (IFAG - Germany)
          • SPACEWARN Bulletin. Rapid distribution of information on satellites and space probes. With links to various activities, launch dates, data, etc. for various spacecraft.

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          Precise Geodesy with GPS

          Permanent GPS arrays (PGA's) or Active Control Networks (ACS) consist of a number of permanent reference GPS stations, which are continuously tracking all visible satellites, and one or more facilities for collecting and processing the GPS measurements, and archiving and distributing this data, together with derived products, such as satellite orbits and clock parameters, time series of reference station coordinates and velocities, and atmospheric parameters. This specialized concept of GPS is being used today in a number of scientific and practical applications, such as: Maintenance of reference systems Κ Determination of satellite orbits and Earth rotation parameters Κ Atmospheric research and meteorology Κ Monitoring of deformations, such as land subsidence and uplift and crustal deformations at tectonic plate boundaries Κ Monitoring of sea level rise Κ Surveying and mapping Κ Positioning for GIS/LIS applications Κ Real-time navigation

          • International GPS Service for Geodynamics (IGS)
            • IGS Data Center (JPL)
            • IGS Regional GPS Data Center (NOAA)

          • Southern California Integrated GPS Networks
          • Daily GPS Time Series
          • UNAVCO - University NAVSTAR Consortium
          • NOAA & USNO, National Earth Orientation Service
          • CDDIS - Crustal Dynamics Data Information System

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          Eλληνικές Σελίδες - Greek Section

          • Δυό λόγια για το GPS
          • Oι δορυφόροι GPS - Slideshow
          • Eνημερωτικά Δελτία GPS-(NANUs)
          • Μεθοδολογία μετρήσεων
          • Σφάλματα μετρήσεων
          • Επιλεκτική Διαθεσιμότητα
          • Tεχνικές aνάλυσης των μετρήσεων
          • Oρατότητα δορυφόρων GPS από την Aθήνα

          • Aρθρο: D. Delikaraoglou (1997) "GPS-assisted operations in support of the new Hellenic Cadastre System: experiences to date"
            Άρθρο στα αγγλικά αλλά με αναφορά στη χρήση του GPS για εφαρμογές στα πλαίσια των εργασιών για το Eθνικό Kτηματολόγιο.

            Προδιαγραφές GPS

          • Διαδικασίες Ποιοτικού Eλέγχου Eργασιών GPS
          • Tυπικές Προδιαγραφές Aκρίβειας Eντοπισμών GPS
          • Mέτρα (Aπόλυτης) Aκρίβειας των σημείων ενός δικτύου GPS
          • Mέτρα Tοπικής (Σχετικής) Aκρίβειας των σημείων ενός δικτύου GPS
          • Σχεδιασμός και Eκτέλεση Mετρήσεων GPS
          • RINEX (Receiver Intependent Exchange format): Πρότυπο μορφοποίησης δεδομένων GPS

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          | Satellite Remote Sensing | Photogrammetry and Vision Systems | Geodesy and Precise Surveying | Geographic Information Systems (GIS) | Management of Spatial Information |