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The MEASO assessment areas: five sectors (Atlantic, Central Indian, East Indian, West Pacific, East Pacific), each with three zones (Antarctic, Subantarctic, Northern), and a temperate (T) region north of each sector that is outside MEASO. One row per region (20 rows).

Details

The boundaries are those of version 05. In version 06 the anti-meridian split of WestPacific is dissolved (one feature per name), the regions carry their attributes, and fill is the colour of each region in the MEASO Summary for Policymakers (Figure 5).

  • measo_regions06 polar Lambert Azimuthal Equal Area (use this for areas)

  • measo_regions06_ll longitude/latitude: boundaries are straight lines in longitude/latitude (along parallels and meridians), WestPacific is a MULTIPOLYGON either side of the anti-meridian

  • measo_regions06_coastline, measo_regions06_ll_coastline with the Antarctic continent cut out

  • measo_names06 the attributes alone, a key by name

Columns:

  • name code, sector then zone, e.g. "AOA"

  • label full name, zone then sector, e.g. "Antarctic Atlantic"

  • sector e.g. "CentralIndian"

  • zone "Antarctic", "Subantarctic", "Northern", or NA for the temperate regions

  • fill colour as "#RRGGBB", NA for the temperate regions

References

Constable, A.J., J. Melbourne-Thomas, M.M.C. Muelbert, S. McCormack, M. Brasier, J.A. Caccavo, R.D. Cavanagh, S.M. Grant, H.J. Griffiths, J. Gutt, S.F. Henley, J. Höfer, A.B. Hollowed, N.M. Johnston, S.A. Morley, E.J. Murphy, M.H. Pinkerton, I.R. Schloss, K.M. Swadling, A.P. Van de Putte (2023) Marine Ecosystem Assessment for the Southern Ocean: Summary for Policymakers. Integrated Climate and Ecosystem Dynamics in the Southern Ocean, Scientific Committee on Antarctic Research, Scientific Committee on Oceanic Research, Integrated Marine Biosphere Research. doi:10.5281/zenodo.8359585 . See Figure 5, "MEASO assessment areas".

McCormack, S.A., J. Melbourne-Thomas, R. Trebilco, J.L. Blanchard, B. Raymond, A. Constable (2021) Decades of dietary data demonstrate regional food web structures in the Southern Ocean. Ecology and Evolution 11(1): 227–241. doi:10.1002/ece3.7017

Earlier MEASO documents, from the time of versions 03 to 05 of the regions:

Brasier, M.J., A. Constable, J. Melbourne-Thomas, R. Trebilco, H. Griffiths, A. Van de Putte, M. Sumner (2019) Observations and models to support the first Marine Ecosystem Assessment for the Southern Ocean (MEASO). Journal of Marine Systems 197: 103182. doi:10.1016/j.jmarsys.2019.05.008

Constable, A., J. Melbourne-Thomas, R. Trebilco, M. Brasier (2018) Marine Ecosystem Assessment for the Southern Ocean (MEASO). SC-CCAMLR 2018 Background Paper, SC-CAMLR-XXXVII/BG/22.

Constable, A., J. Melbourne-Thomas, R. Trebilco, M. Sumner, M. Brasier (2018) The role of models in facilitating the first Marine Ecosystem Assessment for the Southern Ocean (MEASO). Australian Coastal and Oceans Modelling and Observations meeting, Canberra, October 2018.

Examples

x <- measo_regions06_coastline
plot(sf::st_geometry(x), col = x$fill)