Category: Extremes affecting Antarctica

Heat wave occuring from April 16 2023 to April 21 2023 at -65.0°S 95.0°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 16 2023 to April 21 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 7.0 °C
  • Mean temperature: -6.2 °C
  • Maximum temperature anomaly: 12.8 °C
  • Maximum temperature: -0.8 °C

Event center: -65.0°S 95.0°E

Area affected: 189478 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-16_to_2023-Apr-21_95.0_-65.0

Cold spell occuring from April 15 2023 to April 21 2023 at -62.5°S 231.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 7 days

Time span: April 15 2023 to April 21 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -3.2 °C
  • Mean temperature: -1.5 °C
  • Minimum temperature anomaly: -5.5 °C
  • Minimum temperature: -7.9 °C

Event center: -62.5°S 231.0°E

Area affected: 1317086 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-15_to_2023-Apr-21_231.0_-62.5

Heat wave occuring from April 12 2023 to April 21 2023 at -67.5°S 65.0°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica

Duration: 10 days

Time span: April 12 2023 to April 21 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 6.7 °C
  • Mean temperature: -21.8 °C
  • Maximum temperature anomaly: 12.1 °C
  • Maximum temperature: 0.4 °C

Event center: -67.5°S 65.0°E

Area affected: 528829 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-12_to_2023-Apr-21_65.0_-67.5

Heat wave occuring from April 12 2023 to April 16 2023 at -74.0°S 296.0°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 12 2023 to April 16 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 7.2 °C
  • Mean temperature: -4.6 °C
  • Maximum temperature anomaly: 13.2 °C
  • Maximum temperature: 2.5 °C

Event center: -74.0°S 296.0°E

Area affected: 519827 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-12_to_2023-Apr-16_296.0_-74.0

Heat wave occuring from April 11 2023 to April 14 2023 at -72.0°S 267.0°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica

Duration: 4 days

Time span: April 11 2023 to April 14 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 7.1 °C
  • Mean temperature: -2.0 °C
  • Maximum temperature anomaly: 8.5 °C
  • Maximum temperature: -0.6 °C

Event center: -72.0°S 267.0°E

Area affected: 50263 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-11_to_2023-Apr-14_267.0_-72.0

Heat wave occuring from April 10 2023 to June 03 2023 at -25.5°S 65.0°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica
  • French Southern Territories
  • Madagascar
  • Mauritius
  • Réunion

Duration: 55 days

Time span: April 10 2023 to June 03 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 2.3 °C
  • Mean temperature: 17.9 °C
  • Maximum temperature anomaly: 12.1 °C
  • Maximum temperature: 29.5 °C

Event center: -25.5°S 65.0°E

Area affected: 16755112 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-10_to_2023-Jun-03_65.0_-25.5

Cold spell occuring from April 09 2023 to April 12 2023 at -88.0°S 139.5°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 4 days

Time span: April 09 2023 to April 12 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -8.4 °C
  • Mean temperature: -59.6 °C
  • Minimum temperature anomaly: -13.3 °C
  • Minimum temperature: -67.3 °C

Event center: -88.0°S 139.5°E

Area affected: 230417 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-09_to_2023-Apr-12_139.5_-88.0

Cold spell occuring from April 08 2023 to April 11 2023 at -85.0°S 201.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 4 days

Time span: April 08 2023 to April 11 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -8.4 °C
  • Mean temperature: -42.7 °C
  • Minimum temperature anomaly: -16.7 °C
  • Minimum temperature: -53.5 °C

Event center: -85.0°S 201.0°E

Area affected: 313596 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-08_to_2023-Apr-11_201.0_-85.0

Cold spell occuring from April 02 2023 to April 04 2023 at -85.0°S 204.0°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 02 2023 to April 04 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -13.3 °C
  • Mean temperature: -38.9 °C
  • Minimum temperature anomaly: -20.1 °C
  • Minimum temperature: -43.3 °C

Event center: -85.0°S 204.0°E

Area affected: 65835 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-02_to_2023-Apr-04_204.0_-85.0

Heat wave occuring from April 02 2023 to April 05 2023 at -67.5°S 70.5°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica

Duration: 4 days

Time span: April 02 2023 to April 05 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 7.4 °C
  • Mean temperature: -6.5 °C
  • Maximum temperature anomaly: 16.3 °C
  • Maximum temperature: -0.1 °C

Event center: -67.5°S 70.5°E

Area affected: 442211 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-02_to_2023-Apr-05_70.5_-67.5