Scientific Regions

The following regions, used in the scientific literature, are already defined:

  • Giorgi Regions (from Giorgi and Franciso, 2000)

  • SREX Regions (Special Report on Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation (SREX) from Seneviratne et al., 2012)

  • AR6 Regions (Iturbide et al., 2020; ESSD)

The following imports are necessary for the examples.

In [1]: import regionmask

In [2]: import matplotlib.pyplot as plt

Giorgi Regions

In [3]: regionmask.defined_regions.giorgi.plot(label='abbrev');

In [4]: plt.tight_layout()
_images/plotting_giorgi.png

SREX Regions

In [5]: regionmask.defined_regions.srex.plot();

In [6]: plt.tight_layout()
_images/plotting_srex.png

AR6 Regions

There are 58 AR6 regions as defined in Iturbide et al. (2020). The regions cover the land and ocean (ar6.all). In addition the regions are also divided into land (ar6.land) and ocean (ar6.ocean) categories. The numbering is kept consistent between the categories. Note that some regions are in the land and in the ocean categories (e.g. the Mediterranean).

Warning

The regions have changed in the review process. Please update your scripts. The final region definitions are available at regionmask.defined_regions.ar6. For completeness, the submitted region definitions (also referred to as SOD regions) are available at regionmask.defined_regions._ar6_pre_revisions.

All

In [7]: regionmask.defined_regions.ar6.all
Out[7]: 
<regionmask.Regions>
Name:     AR6 reference regions
Source:   Iturbide et al., 2020 (Earth Syst. Sci. Data)

Regions:
  0  GIC       Greenland/Iceland
  1  NWN       N.W.North-America
  2  NEN       N.E.North-America
  3  WNA         W.North-America
  4  CNA         C.North-America
..   ...                     ...
 53  ARS             Arabian-Sea
 54  BOB           Bay-of-Bengal
 55  EIO  Equatorial.Indic-Ocean
 56  SIO           S.Indic-Ocean
 57  SOO          Southern-Ocean

[58 regions]
In [8]: text_kws = dict(color="#67000d", fontsize=7, bbox=dict(pad=0.2, color="w"))

In [9]: regionmask.defined_regions.ar6.all.plot(text_kws=text_kws);

In [10]: plt.tight_layout()
_images/plotting_ar6_all.png

Land

In [11]: regionmask.defined_regions.ar6.land
Out[11]: 
<regionmask.Regions>
Name:     AR6 reference regions (land only)
Source:   Iturbide et al., 2020 (Earth Syst. Sci. Data)

Regions:
  0  GIC  Greenland/Iceland
  1  NWN  N.W.North-America
  2  NEN  N.E.North-America
  3  WNA    W.North-America
  4  CNA    C.North-America
..   ...                ...
 41  EAU        E.Australia
 42  SAU        S.Australia
 43   NZ        New-Zealand
 44  EAN       E.Antarctica
 45  WAN       W.Antarctica

[46 regions]
In [12]: regionmask.defined_regions.ar6.land.plot(text_kws=text_kws, add_ocean=True);

In [13]: plt.tight_layout()
_images/plotting_ar6_land.png

Ocean

In [14]: regionmask.defined_regions.ar6.ocean
Out[14]: 
<regionmask.Regions>
Name:     AR6 reference regions (ocean only)
Source:   Iturbide et al., 2020 (Earth Syst. Sci. Data)

Regions:
  8  CAR               Caribbean
 19  MED           Mediterranean
 38  SEA                S.E.Asia
 46  ARO            Arctic-Ocean
 47  NPO         N.Pacific-Ocean
..   ...                     ...
 53  ARS             Arabian-Sea
 54  BOB           Bay-of-Bengal
 55  EIO  Equatorial.Indic-Ocean
 56  SIO           S.Indic-Ocean
 57  SOO          Southern-Ocean

[15 regions]
In [15]: regionmask.defined_regions.ar6.ocean.plot(text_kws=text_kws, add_land=True);

In [16]: plt.tight_layout()
_images/plotting_ar6_ocean.png