Physical Oceanography, Vol. 17, No. 1, 2007
ANALYSIS OF OBSERVATIONS AND METHODS FOR CALCULATING
HYDROPHYSICAL FIELDS IN THE OCEAN
CHARACTERISTICS OF TSUNAMI WAVES IN THE BLACK SEA ACCORDING
TO THE DATA OF MEASUREMENTS
S. F. Dotsenko and A. V. Ingerov
We present the general description of tsunami waves in the Black Sea. The quantitative charac-
teristics of four historical events are revised by using the digitized marigrams and their spectral
analysis. As a rule, tsunami waves are characterized by the initial elevation of the sea level and
the height of the first wave is not maximum. The maximum heights of the recorded tsunami
waves at the points of observation do not exceed
cm. For the major part of points on the sea
coast, we observe a noticeable trend toward the increase in the heights of waves with the magni-
tude of the earthquake. The typical periods of tsunami waves and background variations of the
sea level lie within the intervals
As the territories most often subjected to the action of strong tsunamis, one can mention the coastal areas
and islands of the Pacific and Indian Oceans, Mediterranean Sea, East Atlantic, Caribbean Basin, and many
other regions of the World Ocean . In the Sea of Marmara, Black Sea, Sea of Azov, and Caspian Sea of the
Mediterranean belt, the danger of tsunamis is much lower [2–5]. Although tsunami waves and related wave phe-
nomena are detected in these seas, the period of occurrence of significant events is quite large (decades or even
centuries). Moreover, the available volume of instrumental records of the oscillations of sea level accompanying
the phenomena of tsunami is very small. At the same time, the level of seismic activity in the regions of the an-
alyzed marine basins does not allow us to exclude the possibility of generation of strong tsunamis by underwater
There are no marigraphic records of tsunami waves in the Sea of Marmara, Sea of Azov, and Caspian Sea.
For the Black Sea, there exist instrumental data on the oscillations of sea level at various points of the Ukrainian,
Russian, and Georgian parts of the coast induced by the seaquakes observed in this region.
The generalized char-
acteristics of these tsunamis are presented in [6–9].
In the present work, we revise the quantitative characteristics of four Black-Sea tsunami waves by using the
digitized marigrams and spectral methods for the analysis of time series and present some additional parameters
of the oscillations of sea level caused by tsunamis.
Database of Tsunami Waves in the Black Sea
All currently known events of tsunami in the Black Sea can be conventionally split into two groups.
Marine Hydrophysical Institute, Ukrainian Academy of Sciences, Sevastopol.
Translated from Morskoi Gidrofizicheskii Zhurnal, No.
21–31, January–February, 2007. Original article submitted July 28,
0928-5105/07/1701–0017 © 2007 Springer Science+Business Media, Inc. 17