TY - GEN
T1 - Investigaton of sea level change along the Black Sea coast from tide gauge and satellite altimetry
AU - Avsar, N. B.
AU - Kutoglu, S. H.
AU - Jin, S.
AU - Erol, B.
PY - 2015
Y1 - 2015
N2 - In this study, we focus on sea level changes along the Black Sea coast. For this purpose, at same observation period the linear trends and the components of seasonal variations of sea level change are estimated at 12 tide gauge sites (Amasra, Igneada, Trabzon-II, Sinop, Sile, Poti, Batumi, Sevastopol, Tuapse, Varna, Bourgas, and Constantza) located along the Black Sea coast and available altimetric grid points closest to the tide gauge locations. The consistency of the results derived from both observations are investigated and interpreted. Furthermore, in order to compare the trends at the same location, it is interpolated from the trends obtained at the altimetric grid points in the defined neighbouring area with a diameter of 0.125° using a weighted average interpolation algorithm at each tide gauge site. For some tide gauges such as Sevastopol, Varna, and Bourgas, it is very likely that the trend estimates are not reliable because the time-spans overlapping the altimeter period are too short. At Sile, the long-term change for the time series of both data types do not give statistically significant linear rates. However, when the sites have long-term records, a general agreement between the satellite altimetry and tide gauge time series is observed at Poti (∼20 years) and Tuapse (∼18 years). On the other hand, the difference of annual phase between satellite altimetry and tide gauge results is from 1.32° to 71.48°.
AB - In this study, we focus on sea level changes along the Black Sea coast. For this purpose, at same observation period the linear trends and the components of seasonal variations of sea level change are estimated at 12 tide gauge sites (Amasra, Igneada, Trabzon-II, Sinop, Sile, Poti, Batumi, Sevastopol, Tuapse, Varna, Bourgas, and Constantza) located along the Black Sea coast and available altimetric grid points closest to the tide gauge locations. The consistency of the results derived from both observations are investigated and interpreted. Furthermore, in order to compare the trends at the same location, it is interpolated from the trends obtained at the altimetric grid points in the defined neighbouring area with a diameter of 0.125° using a weighted average interpolation algorithm at each tide gauge site. For some tide gauges such as Sevastopol, Varna, and Bourgas, it is very likely that the trend estimates are not reliable because the time-spans overlapping the altimeter period are too short. At Sile, the long-term change for the time series of both data types do not give statistically significant linear rates. However, when the sites have long-term records, a general agreement between the satellite altimetry and tide gauge time series is observed at Poti (∼20 years) and Tuapse (∼18 years). On the other hand, the difference of annual phase between satellite altimetry and tide gauge results is from 1.32° to 71.48°.
KW - Black sea
KW - Coastal sea level change
KW - Linear trend
KW - Satellite altimetry
KW - Seasonal variations
KW - Tide gauge
UR - http://www.scopus.com/inward/record.url?scp=84974577002&partnerID=8YFLogxK
U2 - 10.5194/isprsarchives-XL-1-W5-67-2015
DO - 10.5194/isprsarchives-XL-1-W5-67-2015
M3 - Conference contribution
AN - SCOPUS:84974577002
T3 - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives
SP - 67
EP - 71
BT - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives
A2 - Arefi, H.
A2 - Motagh, M.
PB - International Society for Photogrammetry and Remote Sensing
T2 - ISPRS International Conference on Sensors and Models in Remote Sensing and Photogrammetry 2015
Y2 - 23 November 2015 through 25 November 2015
ER -