Category: Extremes affecting Antarctica

Heat wave occuring from May 06 2023 to May 16 2023 at -68.0°S 34.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Antarctica

Duration: 11 days

Time span: May 06 2023 to May 16 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 4.6 °C
  • Mean temperature: -2.9 °C
  • Maximum temperature anomaly: 12.3 °C
  • Maximum temperature: 0.7 °C

Event center: -68.0°S 34.0°E

Area affected: 1017167 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2023-May-06_to_2023-May-16_34.0_-68.0

Cold spell occuring from May 02 2023 to May 07 2023 at -74.0°S 149.5°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Antarctica

Duration: 6 days

Time span: May 02 2023 to May 07 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -7.5 °C
  • Mean temperature: -56.1 °C
  • Minimum temperature anomaly: -10.2 °C
  • Minimum temperature: -59.3 °C

Event center: -74.0°S 149.5°E

Area affected: 64469 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2023-May-02_to_2023-May-07_149.5_-74.0

Cold spell occuring from May 01 2023 to May 10 2023 at -73.0°S 127.5°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Antarctica

Duration: 10 days

Time span: May 01 2023 to May 10 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -8.5 °C
  • Mean temperature: -62.6 °C
  • Minimum temperature anomaly: -10.6 °C
  • Minimum temperature: -70.0 °C

Event center: -73.0°S 127.5°E

Area affected: 230636 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2023-May-01_to_2023-May-10_127.5_-73.0

Cold spell occuring from May 01 2023 to May 15 2023 at -84.5°S 290.5°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Antarctica

Duration: 15 days

Time span: May 01 2023 to May 15 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -9.8 °C
  • Mean temperature: -64.9 °C
  • Minimum temperature anomaly: -15.9 °C
  • Minimum temperature: -73.7 °C

Event center: -82.0°S 64.0°E

Area affected: 1958837 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2023-May-01_to_2023-May-15_290.5_-84.5

Cold spell occuring from April 30 2023 to May 02 2023 at -66.0°S 86.0°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Antarctica

Duration: 3 days

Time span: April 30 2023 to May 02 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -6.9 °C
  • Mean temperature: -19.7 °C
  • Minimum temperature anomaly: -10.6 °C
  • Minimum temperature: -24.7 °C

Event center: -66.0°S 86.0°E

Area affected: 50682 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2023-Apr-30_to_2023-May-02_86.0_-66.0

Heat wave occuring from April 30 2023 to May 02 2023 at -59.0°S 158.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Antarctica

Duration: 3 days

Time span: April 30 2023 to May 02 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 2.3 °C
  • Mean temperature: 3.3 °C
  • Maximum temperature anomaly: 3.0 °C
  • Maximum temperature: 5.1 °C

Event center: -59.0°S 158.5°E

Area affected: 113188 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2023-Apr-30_to_2023-May-02_158.5_-59.0

Cold spell occuring from April 29 2023 to May 11 2023 at -66.5°S 237.0°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Antarctica

Duration: 13 days

Time span: April 29 2023 to May 11 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -8.4 °C
  • Mean temperature: -14.8 °C
  • Minimum temperature anomaly: -14.8 °C
  • Minimum temperature: -33.4 °C

Event center: -66.5°S 237.0°E

Area affected: 2265862 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2023-Apr-29_to_2023-May-11_237.0_-66.5

Heat wave occuring from April 25 2023 to April 30 2023 at -81.5°S 108.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Antarctica

Duration: 6 days

Time span: April 25 2023 to April 30 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 9.5 °C
  • Mean temperature: -45.0 °C
  • Maximum temperature anomaly: 14.4 °C
  • Maximum temperature: -39.2 °C

Event center: -81.5°S 108.0°E

Area affected: 414425 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2023-Apr-25_to_2023-Apr-30_108.0_-81.5

Heat wave occuring from April 18 2023 to April 25 2023 at -65.5°S 57.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Antarctica

Duration: 8 days

Time span: April 18 2023 to April 25 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 5.9 °C
  • Mean temperature: -9.1 °C
  • Maximum temperature anomaly: 10.4 °C
  • Maximum temperature: -2.2 °C

Event center: -65.5°S 57.5°E

Area affected: 180604 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2023-Apr-18_to_2023-Apr-25_57.5_-65.5

Heat wave occuring from April 17 2023 to April 21 2023 at -60.0°S 93.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Antarctica

Duration: 5 days

Time span: April 17 2023 to April 21 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 0.5 °C
  • Maximum temperature anomaly: 3.7 °C
  • Maximum temperature: 2.2 °C

Event center: -60.0°S 93.5°E

Area affected: 154449 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2023-Apr-17_to_2023-Apr-21_93.5_-60.0