Physics
Scientific paper
Jan 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3102304n&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 2, CiteID L02304
Physics
5
Oceanography: General: Marginal And Semienclosed Seas, Oceanography: Physical: Sea Level Variations, Oceanography: General: Remote Sensing And Electromagnetic Processes (0689), Oceanography: Physical: Instruments And Techniques, Oceanography: Physical: Air/Sea Interactions (0312)
Scientific paper
High frequency (2-20 days) sea level fluctuations, driven by atmospheric pressure changes, must be eliminated from TOPEX/POSEIDON altimeter data, else these data sampled at 10-day interval will suffer aliasing when interpreted as lower frequency variability of the subsurface pressure and circulation. A simple analytic Helmholtz-like model [Lyu et al., 2002], which explains successfully the nonisostatic sea level response in the Japan/East Sea (JES), is applied to correct the high-frequency sea level fluctuation effects on the T/P data. The model removes these pressure-driven fluctuations better than the standard inverse barometer (IB) method, leaving residuals smaller by about 10% in the corrected mean sea level (MSL) data used in this study. Because the maximum difference between the model correction and the IB correction can reach 10 cm, the impact of the correction choice is substantial. Moreover, uncorrected or IB corrected T/P along-track data contain substantial high frequency variability which can lead to `trackiness' errors between crossing and neighboring tracks, contaminating their use for synoptic mapping. The model correction reduced the trackiness significantly better than the usual IB correction.
Kim Kuh
Kim Young Ho
Lyu Sang Jin
Nam Sung Hyun
Park Jae-Hun
No associations
LandOfFree
Correction of TOPEX/POSEIDON altimeter data for nonisostatic sea level response to atmospheric pressure in the Japan/East Sea 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 Correction of TOPEX/POSEIDON altimeter data for nonisostatic sea level response to atmospheric pressure in the Japan/East Sea, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Correction of TOPEX/POSEIDON altimeter data for nonisostatic sea level response to atmospheric pressure in the Japan/East Sea will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1550929