Global Observation-based LInear Vorticity Vertical Velocities (OLIV3) over vertical levels

<p>Observation-based Linear Vorticity Vertical Velocities (OLIV3) estimates from observation-based geostrophic velocities within the global themocline during the 1993-2019 period at annual frequency.</p> <p>The beta-plane geostrophic OLIV3 fields are computed following the indefinite depth-integrated geostrophic linear vorticity balance methodology described in <em>Cort&eacute;s-Morales and Lazar, 2024, </em><em>Diego Cort&eacute;s Morales, 2023 [thesis] and Cort&eacute;s-Morales et al., (submitted)&nbsp;</em>applied to the ARMOR3D [<em>Mulet et al., 2013; https://data.marine.copernicus.eu/product/MULTIOBS_GLO_PHY_TSUV_3D_MYNRT_015_012</em>] geostrophic meridional velocities. The boundary condition used is the Ekman pumping vertical velocities computed from ERA5 wind stress [DOI: 10.24381/cds.f17050d7]. The velocity field is quality-flagged based on the relative error and interannual correlation coefficient between $w_g$ and $w_{tot}$ in an OGCM perfect model test (<em>Cort&eacute;s-Morales et al., (submitted)</em>).</p> <p>----------------------------------------------------------------------------------------</p> <p>Geographical coverage: Global Ocean</p> <p>Grid and horizontal spatial resolution: Evenly spaced 0.25&ordm; grid</p> <p>Vertical levels: 50 levels from 0 to 5000 meters depth</p> <p>Temporal resolution: Annual (1993-2019)</p> <p>-----------------------------------------------------------------------------------------</p> <p>Variables:</p> <p>lon (2D): Longitude</p> <p>lat (2D): Latitude</p> <p>verlev(1D): Vertical level</p> <p>time (1D): Year</p> <p>w_oliv3 (4D): Beta-plane geostrophic vertical velocities</p> <p>flag_time_var (3D): Flag based on correlation coeffcient between geostrophic and total vertical velocties from OGCM</p> <p>flag_time_mean (3D): flag based on relative error between geostrophic and total vertical velocties from OGCM</p>