mapped_pv_all_sources_2008

The potential vorticity calculated from the vertical gradient of the neutral density (ie. PV = f/rho_0 d(gamma)/dz) for the year 2008 (with annual and semi-annual harmonics) from 75S to 30S.本数据集包含2008年的位势涡度（potential vorticity）数据，由中性密度（neutral density）的垂直梯度计算得到，计算公式为 PV = f/ρ₀ d(γ)/dz，空间覆盖范围为南纬75°至南纬30°，数据包含年谐波与半年度谐波分量。