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

Observation-based Linear Vorticity Vertical Velocities (OLIV3) estimates from observation-based geostrophic velocities within the global themocline during the 1993-2019 period at monthly frequency.

The beta-plane geostrophic OLIV3 fields are computed following the indefinite depth-integrated geostrophic linear vorticity balance methodology described in Cortés-Morales and Lazar, 2024, Diego Cortés Morales, 2023 [thesis] and Cortés-Morales et al., (submitted) applied to the ARMOR3D [Mulet et al., 2013; https://data.marine.copernicus.eu/product/MULTIOBS_GLO_PHY_TSUV_3D_MYNRT_015_012] geostrophic meridional velocities. The boundary condition used is the Ekman pumping vertical velocities computed from ERA5 wind stress [DOI: 10.24381/cds.f17050d7]. 

----------------------------------------------------------------------------------------

Geographical coverage: Global Ocean

Grid and horizontal spatial resolution: Evenly spaced 0.25º grid

Vertical levels: 50 levels from 0 to 5000 meters depth

Temporal resolution: Monthly 

-----------------------------------------------------------------------------------------

Variables:

lon (2D): Longitude

lat (2D): Latitude

verlev(1D): Vertical level

time (1D): Month

w_oliv3 (4D): Beta-plane geostrophic vertical velocities