Internal Waves as a Source of Concentric Rings within Small River Plumes

This study is focused on concentric rings, which are regularly observed by remote sensing of small river plumes located in different regions worldwide. We report new aerial observations of these features obtained by quadcopters and supported by synchronous in situ measurements, which were collected...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Alexander Osadchiev, Roman Sedakov, Alexandra Gordey, Alexandra Barymova
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	river plume internal waves hydraulic jump stratification mixing aerial drone Science Q
Acceso en línea:	https://doaj.org/article/e8559f6d551f4be1a528385057155d0a
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:e8559f6d551f4be1a528385057155d0a
record_format	dspace
spelling	oai:doaj.org-article:e8559f6d551f4be1a528385057155d0a2021-11-11T18:52:35ZInternal Waves as a Source of Concentric Rings within Small River Plumes10.3390/rs132142752072-4292https://doaj.org/article/e8559f6d551f4be1a528385057155d0a2021-10-01T00:00:00Zhttps://www.mdpi.com/2072-4292/13/21/4275https://doaj.org/toc/2072-4292This study is focused on concentric rings, which are regularly observed by remote sensing of small river plumes located in different regions worldwide. We report new aerial observations of these features obtained by quadcopters and supported by synchronous in situ measurements, which were collected during the recent field survey at the Bzyb river plume in the eastern part of the Black Sea. Joint analysis of remote sensing imagery and in situ data suggest that the observed concentric rings are surface manifestations of high-frequency internal waves generated in the vicinity of the river mouth. The obtained results demonstrate that the propagation of these waves does not induce offshore material transport within the plume induced by shear instability, which was hypothesized in a recent numerical modeling study of this process. We provide an explanation for the appearance of misleading material features in the numerical simulations discussed above. Finally, we discuss directions for future research of high-frequency internal waves generated in small river plumes.Alexander OsadchievRoman SedakovAlexandra GordeyAlexandra BarymovaMDPI AGarticleriver plumeinternal waveshydraulic jumpstratificationmixingaerial droneScienceQENRemote Sensing, Vol 13, Iss 4275, p 4275 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	river plume internal waves hydraulic jump stratification mixing aerial drone Science Q
spellingShingle	river plume internal waves hydraulic jump stratification mixing aerial drone Science Q Alexander Osadchiev Roman Sedakov Alexandra Gordey Alexandra Barymova Internal Waves as a Source of Concentric Rings within Small River Plumes
description	This study is focused on concentric rings, which are regularly observed by remote sensing of small river plumes located in different regions worldwide. We report new aerial observations of these features obtained by quadcopters and supported by synchronous in situ measurements, which were collected during the recent field survey at the Bzyb river plume in the eastern part of the Black Sea. Joint analysis of remote sensing imagery and in situ data suggest that the observed concentric rings are surface manifestations of high-frequency internal waves generated in the vicinity of the river mouth. The obtained results demonstrate that the propagation of these waves does not induce offshore material transport within the plume induced by shear instability, which was hypothesized in a recent numerical modeling study of this process. We provide an explanation for the appearance of misleading material features in the numerical simulations discussed above. Finally, we discuss directions for future research of high-frequency internal waves generated in small river plumes.
format	article
author	Alexander Osadchiev Roman Sedakov Alexandra Gordey Alexandra Barymova
author_facet	Alexander Osadchiev Roman Sedakov Alexandra Gordey Alexandra Barymova
author_sort	Alexander Osadchiev
title	Internal Waves as a Source of Concentric Rings within Small River Plumes
title_short	Internal Waves as a Source of Concentric Rings within Small River Plumes
title_full	Internal Waves as a Source of Concentric Rings within Small River Plumes
title_fullStr	Internal Waves as a Source of Concentric Rings within Small River Plumes
title_full_unstemmed	Internal Waves as a Source of Concentric Rings within Small River Plumes
title_sort	internal waves as a source of concentric rings within small river plumes
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e8559f6d551f4be1a528385057155d0a
work_keys_str_mv	AT alexanderosadchiev internalwavesasasourceofconcentricringswithinsmallriverplumes AT romansedakov internalwavesasasourceofconcentricringswithinsmallriverplumes AT alexandragordey internalwavesasasourceofconcentricringswithinsmallriverplumes AT alexandrabarymova internalwavesasasourceofconcentricringswithinsmallriverplumes
_version_	1718431737397116928

Internal Waves as a Source of Concentric Rings within Small River Plumes

Ejemplares similares