RECENT SEA LEVEL CHANGES IN THE BLACK SEA FROM SATELLITE GRAVITY AND ALTIMETER MESUREMENTS

Nonseasonal sea level variations in the Japan/East Sea from satellite altimeter data

[1] A merged TOPEX/POSEIDON and ERS-1/2 altimeter data set is used to estimate nonseasonal variations of sea surface height (SSH) in the Japan/East Sea (JES) from October 1992 through February 2002. The altimeter data have a good correlation (0.95) with tide gauge data in the western JES. The nonseasonal variability of the SSH is higher in the southern warm region than in the northern cold regi...

Sea state bias in altimeter sea level estimates determined by combining wave model and satellite data

Sea Level Change in the Malaysian Seas from Multi-satellite Altimeter Data

The long-term sea level change during 1993 – 2008 is investigated in the Malaysian Seas from satellite altimetry data of the Topex, Jason-1, ERS-1, ERS-2 and Envisat missions. During the past two decades, satellite altimeter has provided its capability in measuring the global mean of sea level with precision better than 1 mm/year. Sea level data retrieval and reduction were carried out using Ra...

Gravity & Sea Level

Changes in global sea level arising from man's activity is today a subject of wide interest and concern. A number of satellite missions, in Europe and the United States, are aimed at improving our knowledge and understanding of the ongoing changes in sea level. The ERS, Jason, CryoSat, Champ, GRACE and GOCE satellites are all aimed at contributing to aspects of the sea level problem. However, c...

Gravity acceleration at the sea surface derived from satellite altimetry data using harmonic splines

Gravity acceleration data have grand pursuit for marine applications. Due to environmental effects, marine gravity observations always hold a high noise level. In this paper, we propose an approach to produce marine gravity data using satellite altimetry, high-resolution geopotential models and harmonic splines. On the one hand, harmonic spline functions have great capability for local gravity ...