Computing cross-isotherm volume transports from ocean temperature observations and surface heat fluxes,with application to the Barents Sea inflow |
| |
Authors: | Ole Henrik Segtnan Tore Furevik Alastair D. Jenkins |
| |
Affiliation: | 1. Geophysical Institute, University of Bergen, Allegaten 70, 5007 Bergen, Norway;2. Bjerknes Centre for Climate Research, Bergen, Norway |
| |
Abstract: | A method for determining the cross-isotherm ocean transport from surface heat flux and ocean temperature data is derived. By computing the volume flux through the isotherm that extend from 19°E, 74°N to the eastern part of the Kola Peninsula, the flow through the western entrance of the Barents Sea south of 74°N is estimated. Using three different surface heat flux datasets, the inflow is found to range from 2.9 to 4.5 Sv in winter (October–March) and from 0.4 to 1.4 Sv in summer (April–September; 1 Sv=106 m3 s−1). The seasonal variations are stronger than indicated by results from direct current measurements, probably because the seasonal cycle of the surface heat fluxes is overestimated along the considered isotherm. The annual mean inflow ranges from 1.9 to 2.2 Sv during a cold period (1986–1988), and from 2.4 to 3.0 Sv during a warm period (1990–1992), close to reported observations. |
| |
Keywords: | Volume flux Barents Sea Cross-isotherm currents |
本文献已被 ScienceDirect 等数据库收录! |
|