phenomenon of coastal erosion in the last 20 years
(blue line), a fact that proves the existence of the
problem and reveals the real concern of the scientific
community.
At the same time, in figure 4 we can see that the
growth trend in the number of studies in the last two
decades can be combined with the concern of the
governments and several institutes which have funded
the relevant studies. The rate 47.83% of “no funded” is
a critical point which being occurred during this study
and indicates that one in two studies of coastal erosion
issue is being proceeded by researchers without financial support and this should be changed in the next
years in order to improve the quality of the results as
well as free of charge low-resolution data were used
frequently and so the results based on them are
limited.
Periods of interest
We distinguished four categories of periods (n in
years) which researches work on; a) n ≤ 10, b)
10 < n ≤ 30, c) 30 < n ≤ 70 and d) n > 70 and we
found an equal distribution between the first three
classes as figure 5 shows.
From the diagram above it is obvious that
researches are concerned equally for the 10 or less
years (a & c period interval). Particularly for the (a)
Figure 4. Rates of studies that have been funded.
Figure 3. Studies published between 2000 and 2019 being referenced in current paper. Blue line represents the total number of
studies.
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D. APOSTOLOPOULOS AND K. NIKOLAKOPOULOS
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