Numerical Modeling of Internal Wave
Generation at High Latitudes
Oxana E. Kurkina, Tatiana G. Talipova, Efim N. Pelinovsky
and Andrey A. Kurkin
Introduction
It is well known from the theory of linear waves in the ocean that the propagation of
very long tidal internal waves ceases near the critical latitudes [1]. The critical
latitude existing due to the Earth’s rotation is determined as the latitude φ where the
tidal frequency ω is equal to the local inertial frequency f = 2Ω E sinφ, where
Ω E = 0.00007292 1/s is the frequency of the Earth’s rotation. The linear theory of
the baroclinic tide predicts that baroclinic waves of frequency ω cannot propagate
as free waves to the north of this critical latitude [1]. This latitude for the semidiurnal tidal period M 2 = 12.4 h is 75° N, and only about 30° for the diurnal tidal
period. Nevertheless, observations show the existence of short internal waves
(IWs) of very large amplitudes and strong baroclinic fluxes here [2–6].
A significant contribution to the study of IWs in the Arctic basin has been done by
the Russian scientist Eugene Morozov [7–12]. We reproduce briefly the description
of internal waves in the Barents Sea based on the papers [5, 9]. Special measurements of IWs with distributed temperature sensors were carried out from drifting ice
O. E. Kurkina ( ✉ ) ⋅ A. A. Kurkin
Nizhny Novgorod State Technical University n.a. R.E.Alekseev,
Nizhny Novgorod, Russia
e-mail: Oksana.Kurkina@mail.ru
A. A. Kurkin
e-mail: aakurkin@gmail.com
T. G. Talipova ⋅ E. N. Pelinovsky
Federal Research Center Institute of Applied Physics of the Russian Academy
of Sciences, Nizhny Novgorod, Russia
e-mail: tgtalipova@mail.ru
E. N. Pelinovsky
e-mail: pelinovsky@gmail.com
© Springer International Publishing AG, part of Springer Nature 2018
M. G. Velarde et al. (eds.), The Ocean in Motion, Springer Oceanography,
https://doi.org/10.1007/978-3-319-71934-4_36
569
Generation at High Latitudes
Oxana E. Kurkina, Tatiana G. Talipova, Efim N. Pelinovsky
and Andrey A. Kurkin
Introduction
It is well known from the theory of linear waves in the ocean that the propagation of
very long tidal internal waves ceases near the critical latitudes [1]. The critical
latitude existing due to the Earth’s rotation is determined as the latitude φ where the
tidal frequency ω is equal to the local inertial frequency f = 2Ω E sinφ, where
Ω E = 0.00007292 1/s is the frequency of the Earth’s rotation. The linear theory of
the baroclinic tide predicts that baroclinic waves of frequency ω cannot propagate
as free waves to the north of this critical latitude [1]. This latitude for the semidiurnal tidal period M 2 = 12.4 h is 75° N, and only about 30° for the diurnal tidal
period. Nevertheless, observations show the existence of short internal waves
(IWs) of very large amplitudes and strong baroclinic fluxes here [2–6].
A significant contribution to the study of IWs in the Arctic basin has been done by
the Russian scientist Eugene Morozov [7–12]. We reproduce briefly the description
of internal waves in the Barents Sea based on the papers [5, 9]. Special measurements of IWs with distributed temperature sensors were carried out from drifting ice
O. E. Kurkina ( ✉ ) ⋅ A. A. Kurkin
Nizhny Novgorod State Technical University n.a. R.E.Alekseev,
Nizhny Novgorod, Russia
e-mail: Oksana.Kurkina@mail.ru
A. A. Kurkin
e-mail: aakurkin@gmail.com
T. G. Talipova ⋅ E. N. Pelinovsky
Federal Research Center Institute of Applied Physics of the Russian Academy
of Sciences, Nizhny Novgorod, Russia
e-mail: tgtalipova@mail.ru
E. N. Pelinovsky
e-mail: pelinovsky@gmail.com
© Springer International Publishing AG, part of Springer Nature 2018
M. G. Velarde et al. (eds.), The Ocean in Motion, Springer Oceanography,
https://doi.org/10.1007/978-3-319-71934-4_36
569