Atqasuk

Base station ATQK at Atqasuk, Alaska can be used in post-processed static and kinematic surveys, and can provide centimeter-level precision over a wide area surrounding the station when used in conjunction with geodetic quality roving GPS receivers. The base station does not broadcast differential corrections and is not compatible with hand-held GPS navigation receivers.

GPS base station data access (station ID ATQK)

Equipment Available

A geodetic quality, dual-frequency base station is available at Atqasuk, for use in GPS surveys by scientists and others operating in the local area. When used with geodetic quality roving systems, centimeter-level accuracy can be realized over 100 kilometers away from the station by collecting and post-processing data.

Base station data (low-rate) are available online from the NSF GAGE data archive (site ATQK). High-rate data are only archived upon request. Requests for archiving high-rate data should be made as soon as possible.

Trimble NetR8 Base Station

A geodetic GPS base station is available for use in post-processed surveys.

Roving Systems

We can provide geodetic quality GPS roving receivers, such as the Trimble R7, for use in surveying and positioning tasks in the Atqasuk area. Roving equipment is not permanently assigned to the station and must be requested in advance of the field season. All ancillary equipment such as power systems, enclosures, survey controllers, and cabling is also available.

Alternatively, we maintain a set of roving equipment at Barrow, which may be scheduled in advance for loan to users working in the Atqasuk area.

Support

Technical assistance to GPS system users is provided by EarthScope. Users who intend to use the system for a significant amount of field surveying are strongly encouraged to arrange for training prior to their field season. Field Engineer support may be available for projects with a significant GPS surveying component. Upon completion of individual projects, GPS data and meta-data archival is also available to Principal Investigators for permanent safeguarding.