Akademik Veri Yönetim Sistemi
12th Coastal Altimetry Workshop, Rome, İtalya, 4 - 07 Şubat 2020, ss.35
Sea level is one of the most used indicators in regional
and global climate change studies as it is affected by
climate events. It also affected by tectonic motion,
earthquake and local effects.
In order to determine sea level, two main methods are
used. The first one is tide gauge that is measure sea level
relative to a ground benchmark as a datum. It can be also
affected by vertical ground movements. The other is
satellite altimetry that measures sea level relative to a
geocentric reference and not affected by vertical land
motions.
The purpose of this study, to determine sea level changes
from tide gauges and various satellite altimetry missions
in the Marmara Sea. For this aim, relative sea level trends
and tidal parameters have been estimated over period
2010-2019 by main tidal frequencies using least-squares
harmonic estimation method from two tide gauge
stations distributed in the Marmara sea operated by
TUDES (Turkish National Sea Level Monitoring System).
The Satellite altimetry mission data also have been used
to estimate absolute sea level. The data have been
obtained by AVISO, ESA-EO,Copernicus Open Access Hub
data archive in the period of 2010-2019.Sea level trend and tidal parameters have been
determined and compared with two method both the
tide gauge station and satellite altimetry. And tidal
parameter also compared to global models such as
FES2004, FES2014, DTU10 and Tpxo 7.2