Physics
Scientific paper
Jun 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28.2249k&link_type=abstract
Geophysical Research Letters, Volume 28, Issue 11, p. 2249-2252
Physics
10
Geodesy And Gravity: Crustal Movements-Intraplate, Geodesy And Gravity: Tides-Earth, Geodesy And Gravity: Tides-Ocean
Scientific paper
During the past years, the accuracy of relative positioning using differential GPS (DGPS) has been improved significantly. The present accuracy of DGPS allows us to directly estimate the differential amplitudes and Greenwich phase lags of the main semi-diurnal ocean tide loading constituents (S2, K2, M2, and N2). For this purpose a test is carried out using two GPS stations in Alaska. One station, Chi3, is located on an island in the Gulf of Alaska, while the second station, Fair, is located far away from the coastal areas. Processing hourly GPS solutions for the baseline between Fair and Chi3 during 49 days gives differential amplitudes of 23.21 mm and 4.71 mm for M2 and N2, respectively, while the theoretically differential amplitudes of M2 and N2 are 20.90 mm and 4.21 mm, respectively (using the GOT99.2 ocean tide model). The diurnal ocean tide loading constituents are not considered, because unmodeled troposphere effects increase the noise level near the diurnal frequency band and prevent us from obtaining significant results.
Khan Shfaqat Abbas
Tscherning Carl Christian
No associations
LandOfFree
Determination of semi-diurnal ocean tide loading constituents using GPS in Alaska does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Determination of semi-diurnal ocean tide loading constituents using GPS in Alaska, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determination of semi-diurnal ocean tide loading constituents using GPS in Alaska will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1132417