Fundamental and Applied Hydrophysics最新文献_第9页

Qualitative estimation of modeled Snell’s window stereo imagery for wind wave profile retrieval 模拟Snell窗口立体影像用于风浪廓线检索的定性估计

Fundamental and Applied Hydrophysics Pub Date : 2022-04-01 DOI: 10.59887/fpg/p112-6ptf-fh5r

A. Molkov

引用次数: 0

Estimation of the “whitecap” lifetime of breaking wave 破浪“白头”寿命的估计

Fundamental and Applied Hydrophysics Pub Date : 2022-04-01 DOI: 10.59887/fpg/5g5t-4mzd-94ab

A. E. Korinenko, V. Malinovsky, V. Dulov, V. Kudryavtsev

{"title":"Estimation of the “whitecap” lifetime of breaking wave","authors":"A. E. Korinenko, V. Malinovsky, V. Dulov, V. Kudryavtsev","doi":"10.59887/fpg/5g5t-4mzd-94ab","DOIUrl":"https://doi.org/10.59887/fpg/5g5t-4mzd-94ab","url":null,"abstract":"The paper presents the results of a study of the lifetime of wind-wave breaking (“whitecaps”) and the spatial distribution of the moments of wave-breaking initiation along the profile of a long surface wave. The results obtained during the specialized experiments from an oceanographic platform in the Black Sea are given. The registration of the whitecaps was carried out based on the video recordings of the sea surface. The surface waves’ characteristics were measured and the meteorological information was recorded simultaneously with the video recordings. It is shown that the distribution of the whitecaps’ lifetime is well described by an exponential law. It was found that the ratio of the lifetime of an individual whitecap to the period of the breaking wave is 0.3. The distributions of the above-mentioned ratio are similar for different wind and wave conditions. It is indicated that the generation of whitecaps occurs mainly in the region of the crest of a long wave with a shift to its front slope on average by 9.6 of the phase of the long wave. The whitecap having arisen at the leading edge shifts to the trailing edge of the long wave during its lifetime, so that the phase difference between the breaking initiation and the maximum of the surface fraction covered by the whitecaps equals 21.6.","PeriodicalId":218146,"journal":{"name":"Fundamental and Applied Hydrophysics","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115940577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Different approaches to numerical modeling of sea waves 海浪数值模拟的不同方法

Fundamental and Applied Hydrophysics Pub Date : 2022-04-01 DOI: 10.59887/fpg/u1df-m1x7-1bxg

D. Chalikov

引用次数: 0

XXI-st century: a shift of paradigm in the planetary boundary layer theory 二十一世纪:行星边界层理论范式的转变

Fundamental and Applied Hydrophysics Pub Date : 2022-04-01 DOI: 10.59887/fpg/ep89-n4z5-g6b6

I. Esau

引用次数: 0

Seasonal ice removal in the Barents Sea and its dependence on heat advection by Atlantic waters 巴伦支海的季节性消冰及其对大西洋热平流的依赖

Fundamental and Applied Hydrophysics Pub Date : 2022-04-01 DOI: 10.59887/fpg/1krp-xbuk-6gpz

A. Sumkina, K. Kivva, V. Ivanov, A. Smirnov

{"title":"Seasonal ice removal in the Barents Sea and its dependence on heat advection by Atlantic waters","authors":"A. Sumkina, K. Kivva, V. Ivanov, A. Smirnov","doi":"10.59887/fpg/1krp-xbuk-6gpz","DOIUrl":"https://doi.org/10.59887/fpg/1krp-xbuk-6gpz","url":null,"abstract":"The Barents Sea is one of the key areas in the Arctic for monitoring of climate change. Although the Barents Sea is one of the Arctic seas, it is never completely covered with ice. One of the parameters characterizing the change in the ice regime is the date of ice retreat (DOR). The study is based on ice concentration data from the NOAA / NSIDC Climate Data Record (CDR) from 1979 to 2019 and the GLORYS12V1 ocean reanalysis data from 1993 to 2019. The analysis of the spatial and temporal variability of DOR for the Barents Sea using the HDBSCAN cluster analysis method made it possible to identify areas (clusters) with the synchronous dynamics of DOR. A number of the identified areas are located on the path of the Atlantic waters (AW) in the Barents Sea, which made it possible to relate the revealed temporal variability of the DOR to the variability of the AW transport across the western boundary of the sea. Over the entire Barents Sea, after 2003, there has been a steady trend in the timing of seasonal ice removal to earlier ones. At the same time, each of the six regions identified has its own dynamics and rate of changes in DOR. A noticeable effect of the advective heat flux across the western boundary of the Barents Sea on the DOR was revealed for areas in the central and eastern parts of the sea. At the same time, for different regions, the maximum correlation coefficient is observed at different time lags (from 0 to 6 months). The value of the time lag indirectly indicates the time the thermal signal travels the distance from the western boundary of the sea to the corresponding region. The continuing trend towards an increase in the duration of the ice–free season in the Barents Sea is one of the manifestations of the growing “Atlantification” of the East Atlantic sector of the Arctic Ocean which opens up new prospects for socio–economic activity in this Arctic region.","PeriodicalId":218146,"journal":{"name":"Fundamental and Applied Hydrophysics","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132712474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Analytical solution of the ray equations of Hamilton for Rossby waves on stationary shear flows 稳态剪切流上Rossby波的Hamilton射线方程解析解

Fundamental and Applied Hydrophysics Pub Date : 2022-02-08 DOI: 10.5194/os-2022-5

V. Gnevyshev, T. Belonenko

引用次数: 1