Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-1/W5, 67-71, 2015
https://doi.org/10.5194/isprsarchives-XL-1-W5-67-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
10 Dec 2015
INVESTIGATON OF SEA LEVEL CHANGE ALONG THE BLACK SEA COAST FROM TIDE GAUGE AND SATELLITE ALTIMETRY
N. B. Avsar1, S. H. Kutoglu1, S. Jin1, and B. Erol2 1Bulent Ecevit University, Engineering Faculty, Dept. of Geomatics Engineering, 67100 Incivez, Zonguldak, Turkey
2ITU, Civil Engineering Faculty, Dept. of Geomatics Engineering, 34469 Maslak, Istanbul, Turkey
Keywords: Black Sea, Coastal Sea Level Change, Linear Trend, Seasonal Variations, Satellite Altimetry, Tide Gauge Abstract. 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°.
Conference paper (PDF, 1026 KB)


Citation: Avsar, N. B., Kutoglu, S. H., Jin, S., and Erol, B.: INVESTIGATON OF SEA LEVEL CHANGE ALONG THE BLACK SEA COAST FROM TIDE GAUGE AND SATELLITE ALTIMETRY, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-1/W5, 67-71, https://doi.org/10.5194/isprsarchives-XL-1-W5-67-2015, 2015.

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