This readme file was generated on 2024-09-04 by Susan E. Wijffels, Woods Hole Oceanographic Institution

GENERAL INFORMATION

Title of Dataset:  Mesoscale Ocean Circulation Atlas (MOCA2000_2020)
 
Author/Principal Investigator Information
Name:  Susan E. Wijffels
ORCID: (https://orcid.org/0000-0002-4717-0811)
Institution: Woods Hole Oceanographic Institution
Address: 298 Woods Hole Rd, Woods Hole MA 02539
Email: swijffels@whoi.edu

Date of data collection: 2000-01-01 to 2020-21-31

Geographic location of data collection: 80S to 80N, global

Information about funding sources that supported the collection of the data:  United States National Science Foundation OCE 1830007; United States National Oceanic and Atmospheric  Administration’s Global Ocean Monitoring and Observing Program. 


SHARING/ACCESS INFORMATION

Licenses/restrictions placed on the data: Creative Commons Attribution License 4.0 international. The product can be used without restriction provided it is attributed correctly: Wijffels, S. E., Gebbie, G. A., Robbins, P. E. (2024). Mesoscale Ocean Circulation Atlas [Data set]. Woods Hole Oceanographic Institution. https://doi.org/10.26025/1912/70491 

Base data sources: 
Argo (2022). Argo float data and metadata from Global Data Assembly Centre (Argo GDAC) [Dataset]. SEANOE.  http://doi.org/10.17882/42182#98126
We used the 6 hourly kriged data set described by Lumpkin and Centurioni (2019) (https://doi.org/10.25921/7ntx-z961), accessed in February 2021. 
The CTD data set CORA (version 5.2), gridded wind (CMEMS-WIND-PUM-012-006) and sea level products are available from the Copernicus Marine Environment and Monitoring Service (https://marine.copernicus.eu/access-data).  

Recommended scientific citation for this dataset: 
Wijffels, S. E. , G. Gebbie and P. E. Robbins, 2024: Resolving the ubiquitous small-scale semi-permanent features of the general ocean  circulation: a multiplatform observational approach. J. Phys. Oceangr. (accepted)


DATA & FILE OVERVIEW

File List: 
MOCA200dbar_CenterYear2010_EOS80.nc
MOCA_Readme (this file)

METHODOLOGICAL INFORMATION
Fields are found by applying a robust parametric fit to Argo profiles (2000-2020, Dec 2021 download) augmented with CORA(CMEMS) ship, animal and glider data: fit on 82 pressure levels: mean (2010) + trend(change/decade). 

DATA-SPECIFIC INFORMATION:  
Twenty-year means (centered at Jan 1, 2010) and their standard errors are available. Standard Errors are supplied for each variable except: meridional velocity near the equator SE=2.0; zonal velocity near equator SE=1.0
Regions where the mapped error is large and in the Arctic, Andaman, Indonesian Seas, we use the values from Gouretski, V., 2018: World Ocean Circulation Experiment-Argo Global Hydrographic Climatology, Ocean Sci., 14, 1127–1146, https://doi.org/10.5194/os-14-1127-2018. These infilled  points are marked by SE=-999 
  
Grid: 0.5 degrees in longitude and 0.25 degrees in latitude, 82 pressure levels. 

Number of variables: 6
Note that all variables use the EOS80 

Variable List:  
Practical Salinity (PSAL) in PSU
Potential Temperature (PTMP) in ^oCelcisu
Potential Density Anomaly (relative to 1000dbar) (SIGMA1) in kgm^(-3)
Northward total geostrophic velocity (VGEO) in ms^(-1)
Eastward total geostrophic velocity (UGEO) in ms^(-1)
Total Geopotential Anomaly (GPAN) in m^2s^(-2)

Missing data codes:  99999