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, label_multipolygon="all"
   ...: );
   ...: 

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, label_multipolygon="all"
   ....: )
   ....: 
Out[15]: <GeoAxesSubplot:>

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