The supporting data for "Biochemical Drivers Accelerated Vertical Expansion of the North Pacific Oxygen Minimum Zone Compared to Tropical Regions"

The dataset includes the observed minimum dissolved oxygen (DOmin.mat), the upper and lower boundaries of global oceanic oxygen minimum zones (OMZs) from observations (OMZDepths.mat), and relevant environmental parameters from reanalysis datasets and climate models (environmental_parameters.mat).(1) In the DOmin.mat file:Contains only the DOmin variableColumns represent: observation year, longitude, latitude, and minimum dissolved oxygen valueEach row represents an observation record from different spatiotemporal pointsPrimary purpose: Spatial assessment of OMZ location(2) In the OMZDepths.mat file:Contains only the DOmin variableColumns represent: observation year, longitude, latitude, OMZ upper boundary depth, and OMZ lower boundary depthEach row represents an observation record from different spatiotemporal pointsPrimary purpose: Records observed OMZ boundary depths for global OMZ depth assessment(3) In the environmental_parameters.mat file:OMZlon and OMZlat record global OMZ coordinates (longitude and latitude) from 1960-2021OMZregional marks five study regions:'1' = Arabian Sea [AS], '2' = Bay of Bengal [BB], '3' = North Pacific [NP], '4' = Equatorial North Pacific [ENP], '5' = Equatorial South Pacific [ESP]Variables:EnvironmentData_UB: Environmental variables from sea surface to OMZ upper boundaryEnvironmentData_LB: Environmental variables from OMZ lower boundary to 2000m depthEnvironmentData_Thickness: Environmental variables within OMZ depth range (between upper and lower boundaries)Temporal coverage: 1960-2021 (each row represents a year)Columns represent different environmental variables, as recorded in the varnames variable."For specific implementation methods and analytical processes, please refer to this article.