Matches in SemOpenAlex for { <https://semopenalex.org/work/W2131515402> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W2131515402 abstract "The processes in the upper few meters of the ocean are the key ones in controlling the ocean-atmosphere exchange. One of the most informative characteristics of this uppermost layer of the ocean would be the vertical profile of the drift current, which implicitly gives the turbulence intensity distribution and through this the parameters of heat and momentum flux exchange at the air/water interface. However, no technique allowing one to measure or even estimate the current vertical profile has been found yet. In the present work the authors propose an idea of how to estimate the subsurface shear by means of VHF radars. The idea is based upon a well established technique of remote sensing of surface currents employing singlefrequency radars operating in high-frequency (25 MHz, HF) and very-high frequency (50 MHz, VHF) ranges. The frequency spectra of radar echo reflected from the sea surface exhibit two pronounced peaks corresponding to the so-called Bragg lines. The discrepancy between the observed frequency of Bragg lines and the linear dispersion relation for resonant surface gravity waves is attributed to the Doppler shift of the frequency of resonant waves due to the presence of shear current. Indeed, this shift of the surface wave frequency due to shear currents is well resolved by the radar. The authors propose a way to estimate the current vertical shear using the same single-frequency radars. They employ the fact that the backscattered radar echo has one more discernible pair of smaller peaks, the so-called second harmonics peaks. The latter are due to the contribution of the second harmonics of two times longer water wave. These peaks being less pronounced are often still discernible and by means of more sophisticated signal processing technique they apply can be reliably resolved. This enables them to obtain one more parameter of the current, and, thus, to specify the shear." @default.
- W2131515402 created "2016-06-24" @default.
- W2131515402 creator A5010414275 @default.
- W2131515402 creator A5022779038 @default.
- W2131515402 creator A5069790029 @default.
- W2131515402 creator A5085435699 @default.
- W2131515402 date "2002-11-07" @default.
- W2131515402 modified "2023-09-24" @default.
- W2131515402 title "On remote sensing of vertical profile of ocean surface currents by means of single-frequency VHF radars" @default.
- W2131515402 cites W1613616705 @default.
- W2131515402 cites W1982999338 @default.
- W2131515402 cites W2003246888 @default.
- W2131515402 cites W2049029099 @default.
- W2131515402 cites W2062324699 @default.
- W2131515402 doi "https://doi.org/10.1109/igarss.2000.858147" @default.
- W2131515402 hasPublicationYear "2002" @default.
- W2131515402 type Work @default.
- W2131515402 sameAs 2131515402 @default.
- W2131515402 citedByCount "0" @default.
- W2131515402 crossrefType "proceedings-article" @default.
- W2131515402 hasAuthorship W2131515402A5010414275 @default.
- W2131515402 hasAuthorship W2131515402A5022779038 @default.
- W2131515402 hasAuthorship W2131515402A5069790029 @default.
- W2131515402 hasAuthorship W2131515402A5085435699 @default.
- W2131515402 hasConcept C10929652 @default.
- W2131515402 hasConcept C111368507 @default.
- W2131515402 hasConcept C120665830 @default.
- W2131515402 hasConcept C121332964 @default.
- W2131515402 hasConcept C127313418 @default.
- W2131515402 hasConcept C1276947 @default.
- W2131515402 hasConcept C139931591 @default.
- W2131515402 hasConcept C142757262 @default.
- W2131515402 hasConcept C165082838 @default.
- W2131515402 hasConcept C187599188 @default.
- W2131515402 hasConcept C207699401 @default.
- W2131515402 hasConcept C41008148 @default.
- W2131515402 hasConcept C49204034 @default.
- W2131515402 hasConcept C554190296 @default.
- W2131515402 hasConcept C62649853 @default.
- W2131515402 hasConcept C76155785 @default.
- W2131515402 hasConcept C8058405 @default.
- W2131515402 hasConcept C84174578 @default.
- W2131515402 hasConceptScore W2131515402C10929652 @default.
- W2131515402 hasConceptScore W2131515402C111368507 @default.
- W2131515402 hasConceptScore W2131515402C120665830 @default.
- W2131515402 hasConceptScore W2131515402C121332964 @default.
- W2131515402 hasConceptScore W2131515402C127313418 @default.
- W2131515402 hasConceptScore W2131515402C1276947 @default.
- W2131515402 hasConceptScore W2131515402C139931591 @default.
- W2131515402 hasConceptScore W2131515402C142757262 @default.
- W2131515402 hasConceptScore W2131515402C165082838 @default.
- W2131515402 hasConceptScore W2131515402C187599188 @default.
- W2131515402 hasConceptScore W2131515402C207699401 @default.
- W2131515402 hasConceptScore W2131515402C41008148 @default.
- W2131515402 hasConceptScore W2131515402C49204034 @default.
- W2131515402 hasConceptScore W2131515402C554190296 @default.
- W2131515402 hasConceptScore W2131515402C62649853 @default.
- W2131515402 hasConceptScore W2131515402C76155785 @default.
- W2131515402 hasConceptScore W2131515402C8058405 @default.
- W2131515402 hasConceptScore W2131515402C84174578 @default.
- W2131515402 hasLocation W21315154021 @default.
- W2131515402 hasOpenAccess W2131515402 @default.
- W2131515402 hasPrimaryLocation W21315154021 @default.
- W2131515402 hasRelatedWork W1572681756 @default.
- W2131515402 hasRelatedWork W1822074296 @default.
- W2131515402 hasRelatedWork W2023235334 @default.
- W2131515402 hasRelatedWork W2033034921 @default.
- W2131515402 hasRelatedWork W2036088877 @default.
- W2131515402 hasRelatedWork W2037034072 @default.
- W2131515402 hasRelatedWork W2053923446 @default.
- W2131515402 hasRelatedWork W2062844861 @default.
- W2131515402 hasRelatedWork W2077075145 @default.
- W2131515402 hasRelatedWork W2082886727 @default.
- W2131515402 hasRelatedWork W2083277168 @default.
- W2131515402 hasRelatedWork W2084167194 @default.
- W2131515402 hasRelatedWork W2094661537 @default.
- W2131515402 hasRelatedWork W2122908389 @default.
- W2131515402 hasRelatedWork W2142034005 @default.
- W2131515402 hasRelatedWork W2142361380 @default.
- W2131515402 hasRelatedWork W2162403135 @default.
- W2131515402 hasRelatedWork W2167241674 @default.
- W2131515402 hasRelatedWork W2481134925 @default.
- W2131515402 hasRelatedWork W2090216578 @default.
- W2131515402 isParatext "false" @default.
- W2131515402 isRetracted "false" @default.
- W2131515402 magId "2131515402" @default.
- W2131515402 workType "article" @default.