Category: Extremes affecting Antarctica

Cold spell occuring from January 05 2023 to January 13 2023 at -68.0°S 29.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 9 days

Time span: January 05 2023 to January 13 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -1.0 °C
  • Mean temperature: -1.6 °C
  • Minimum temperature anomaly: -4.1 °C
  • Minimum temperature: -8.1 °C

Event center: -68.0°S 29.0°E

Area affected: 660973 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-Jan-05_to_2023-Jan-13_29.0_-68.0

Cold spell occuring from January 01 2023 to January 08 2023 at -60.0°S 231.5°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 8 days

Time span: January 01 2023 to January 08 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -1.9 °C
  • Mean temperature: 1.8 °C
  • Minimum temperature anomaly: -3.5 °C
  • Minimum temperature: -2.3 °C

Event center: -60.0°S 231.5°E

Area affected: 2493220 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-Jan-01_to_2023-Jan-08_231.5_-60.0

Heat wave occuring from January 01 2023 to February 28 2023 at -43.5°S 319.5°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica
  • Argentina
  • Bolivia, Plurinational State of
  • Brazil
  • Chile
  • Paraguay
  • Uruguay

Duration: 59 days

Time span: January 01 2023 to February 28 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 3.2 °C
  • Mean temperature: 15.3 °C
  • Maximum temperature anomaly: 11.6 °C
  • Maximum temperature: 37.9 °C

Event center: -43.5°S 319.5°E

Area affected: 17534761 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-Jan-01_to_2023-Feb-28_319.5_-43.5

Cold spell occuring from December 29 2022 to January 02 2023 at -73.5°S 163.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 5 days

Time span: December 29 2022 to January 02 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.6 °C
  • Mean temperature: -24.4 °C
  • Minimum temperature anomaly: -6.1 °C
  • Minimum temperature: -27.3 °C

Event center: -73.5°S 163.0°E

Area affected: 106989 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_2022-Dec-29_to_2023-Jan-02_163.0_-73.5

Heat wave occuring from December 29 2022 to January 04 2023 at -65.0°S 147.5°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica

Duration: 7 days

Time span: December 29 2022 to January 04 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 1.2 °C
  • Mean temperature: 1.1 °C
  • Maximum temperature anomaly: 2.2 °C
  • Maximum temperature: 2.4 °C

Event center: -65.0°S 147.5°E

Area affected: 423293 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_2022-Dec-29_to_2023-Jan-04_147.5_-65.0

Cold spell occuring from December 26 2022 to December 30 2022 at -64.5°S 238.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 5 days

Time span: December 26 2022 to December 30 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -1.2 °C
  • Mean temperature: -1.4 °C
  • Minimum temperature anomaly: -1.9 °C
  • Minimum temperature: -2.0 °C

Event center: -64.5°S 238.0°E

Area affected: 86491 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_2022-Dec-26_to_2022-Dec-30_238.0_-64.5

Cold spell occuring from December 24 2022 to February 24 2023 at -85.0°S 172.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 63 days

Time span: December 24 2022 to February 24 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.5 °C
  • Mean temperature: -28.9 °C
  • Minimum temperature anomaly: -9.2 °C
  • Minimum temperature: -49.1 °C

Event center: -85.0°S 172.0°E

Area affected: 9850039 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_2022-Dec-24_to_2023-Feb-24_172.0_-85.0

Heat wave occuring from December 19 2022 to December 27 2022 at -86.5°S 139.5°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica

Duration: 9 days

Time span: December 19 2022 to December 27 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 4.7 °C
  • Mean temperature: -23.0 °C
  • Maximum temperature anomaly: 6.7 °C
  • Maximum temperature: -20.8 °C

Event center: -86.5°S 139.5°E

Area affected: 102276 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_2022-Dec-19_to_2022-Dec-27_139.5_-86.5

Heat wave occuring from December 18 2022 to December 28 2022 at -64.5°S 150.5°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: December 18 2022 to December 28 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 1.3 °C
  • Mean temperature: 1.8 °C
  • Maximum temperature anomaly: 3.1 °C
  • Maximum temperature: 7.9 °C

Event center: -64.5°S 150.5°E

Area affected: 946499 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_2022-Dec-18_to_2022-Dec-28_150.5_-64.5

Heat wave occuring from December 18 2022 to December 22 2022 at -66.0°S 116.5°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: December 18 2022 to December 22 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: -0.5 °C
  • Maximum temperature anomaly: 4.4 °C
  • Maximum temperature: 0.7 °C

Event center: -66.0°S 116.5°E

Area affected: 69833 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_2022-Dec-18_to_2022-Dec-22_116.5_-66.0