Must Visit Sights

FIG Commission 5

Working Group 5.2 - Reference Frame in Practice

Must Visit Sights

General Geodetic information

On-line Geodesy Resource	This webpage includes information and other links related to Geodesy with special focus on Reference Frame and GPS issues
Geodesy on the www	A compilation of web adresses made by Huaan Fan, Royal Institute of Technology, Stockholm
Geography Resources for Mapping, GIS, Smartphones and more	A compilation of web addresses suggested by Junior Girl Scouts helping them to geth their Geocacher Adventure badge

Transformation parameters

Here are some links where you can find transformation parameters.

National Mapping Authorities	A good source is always the National Mapping Authority. This list is compiled by UNESCO
CRS FOR EUROPE	This is a internet portal maintained by BKG (Germany) describing the coordinate reference systems in Europe as well as the European Vertical Reference System.

GNSS (Global Navigation Satellite System)

GNSS

GPS World Tech Talk	The GPS World Tech Talk blog is a resource for industry professionals and academics to share technical details surrounding GPS and GNSS systems, receivers, and applications.
United Nations Office for Outer Space Affairs	The United Nations Office for Outer Space Affairs (UNOOSA) is the United Nations office responsible for promoting international cooperation in the peaceful uses of outer space.

GPS

There are a huge number of web pages around the globe covering information on GPS. Here we have listed some f them and would like to encourage you to let us know of others that are good.

Positioning, Navigation and Timing	The National Space-Based Positioning, Navigation, and Timing (PNT) Executive Committee was established by Presidential directive in 2004 to advise and coordinate federal departments and agencies on matters concerning the Global Positioning System (GPS) and related systems.
Global Positioning System overview	Peter Dana gives here a comprehensive discussion about GPS.
USNO GPS Timing Operations	The webpage gives an overview of what GPS is as well as the current situation with the system
GPS Calendar	If you need a GPS Calendar, here you can find it
GPS Control Ltd	At this site you can find GPS Base Station data on the Internet. The stations are located on the southern hemisphere
International GNSS Service	The IGS is committed to providing the highest quality data and products as the standard for global navigation satellite systems (GNSS) in support of Earth science research, multidisciplinary applications, and education. Currently the IGS includes two GNSS: GPS and the Russian GLONASS. You can think of the IGS as the highest-precision international civilian GNSS community.

Galileo

ESA - Navigation - The future - Galileo	The European initiative of creating a Global Navigation Satellite Service is called Galileo. This is the “home page” of the project
GALILEO - EUROPA - Energy and Transport	This is a web page by the European Commission on Galileo

GLONASS

The Russian global satellite system is called GLONASS (GLObalnaya NAvigatsionnaya Sputnikovaya Sistema).

Coordinational Scientific Information Center

At this webpage, run by the Russian Federation Ministry of Defence, you can find the current status of GLONASS.

Other GNSS services

EGNOS	EGNOS stands for European Geostationary Navigation Overlay Service
WAAS	WAAS stands for Wide Area Augmentation Service
	Background to satellite navigation - http://www.ordnancesurvey.co.uk/oswebsite/gps/information/gpsbackground/index.html

Gravity Satellite Missions

GOCE	The Gravity Field and Steady-State Ocean Circulation Explorer (GOCE) mission will measure high-accuracy gravity gradients and provide global models of the Earth's gravity field and of the geoid
GRACE	GRACE, twin satellites launched in March 2002, are making detailed measurements of Earth's gravity field which will lead to discoveries about gravity and Earth's natural systems
CHAMP	CHAMP (CHAllenging Minisatellite Payload) is a German small satellite mission for geoscientific and atmospheric research and applications, managed by GFZ

If you notice that a link is erroneous, have changed or if you have other good web links that could be included, please notify the chair(s) of the working group.