Are there any reliable estimations on the number of icebergs starting their free drift after being calved from the glacier fronts?

It is assumed that many factors like the fjord/bay topography, orientation and depths affect beginning of the free drift and no direct measurements are available.

The papers by Keghouche et al., (2010) and Hansen et al, (2019) give the values of 1% and 3% of icebergs starting the free drift for the Barents Sea.

Can anyone recommend some newer estimations? Estimations for other Arctic seas etc.?

Recommendations and possible discussion will be highly appreciated.

Best regards,

Igor Buzin

Reference:

Keghouche, I., Counillon, F., and Bertino, L. (2010). Modeling dynamics and thermodynamics of icebergs in the Barents Sea from 1987 to 2005, J. of Geophysical Research, Vol. 115, https://doi.org/10.1029/2010JC006165.

Hansen, E., Borge, J., Arntsen, M., Olsson, A., Thomson, M. (2019). Estimating icebergs hazards in the Barents Sea using a numerical iceberg drift and deterioration model // Proc. 25th Intl. Conf. on Port and Ocean Engineering under Arctic Conditions, Delft, June 09-13, 2019, The Netherlands.