Category: Extremes affecting Antarctica

Cold spell occuring from September 24 2021 to October 01 2021 at -84.5°S 136.0°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: September 24 2021 to October 01 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -8.3 °C
  • Mean temperature: -57.8 °C
  • Minimum temperature anomaly: -11.7 °C
  • Minimum temperature: -69.2 °C

Event center: -84.5°S 136.0°E

Area affected: 937521 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_2021-Sep-24_to_2021-Oct-01_136.0_-84.5

Heat wave occuring from September 22 2021 to September 24 2021 at -59.0°S 308.0°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: September 22 2021 to September 24 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 4.0 °C
  • Mean temperature: 0.3 °C
  • Maximum temperature anomaly: 6.2 °C
  • Maximum temperature: 1.7 °C

Event center: -59.0°S 308.0°E

Area affected: 123661 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_2021-Sep-22_to_2021-Sep-24_308.0_-59.0

Cold spell occuring from September 22 2021 to October 10 2021 at -84.0°S 296.5°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 19 days

Time span: September 22 2021 to October 10 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -9.1 °C
  • Mean temperature: -42.0 °C
  • Minimum temperature anomaly: -19.0 °C
  • Minimum temperature: -55.3 °C

Event center: -84.0°S 296.5°E

Area affected: 1334503 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_2021-Sep-22_to_2021-Oct-10_296.5_-84.0

Heat wave occuring from September 20 2021 to October 04 2021 at -50.5°S 324.5°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica
  • Argentina
  • Chile

Duration: 15 days

Time span: September 20 2021 to October 04 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 4.0 °C
  • Mean temperature: 5.6 °C
  • Maximum temperature anomaly: 10.9 °C
  • Maximum temperature: 23.5 °C

Event center: -50.5°S 324.5°E

Area affected: 6407348 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_2021-Sep-20_to_2021-Oct-04_324.5_-50.5

Heat wave occuring from September 20 2021 to September 29 2021 at -70.0°S 163.0°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: September 20 2021 to September 29 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 8.4 °C
  • Mean temperature: -30.0 °C
  • Maximum temperature anomaly: 14.4 °C
  • Maximum temperature: -9.9 °C

Event center: -70.0°S 163.0°E

Area affected: 575149 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_2021-Sep-20_to_2021-Sep-29_163.0_-70.0

Heat wave occuring from September 20 2021 to September 26 2021 at -71.5°S 180.5°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: September 20 2021 to September 26 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 9.5 °C
  • Mean temperature: -11.4 °C
  • Maximum temperature anomaly: 14.5 °C
  • Maximum temperature: -4.3 °C

Event center: -71.5°S 180.5°E

Area affected: 397428 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_2021-Sep-20_to_2021-Sep-26_180.5_-71.5

Heat wave occuring from September 19 2021 to September 23 2021 at -60.5°S 289.0°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: September 19 2021 to September 23 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 2.8 °C
  • Mean temperature: 2.0 °C
  • Maximum temperature anomaly: 3.7 °C
  • Maximum temperature: 4.5 °C

Event center: -60.5°S 289.0°E

Area affected: 131053 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_2021-Sep-19_to_2021-Sep-23_289.0_-60.5

Heat wave occuring from September 15 2021 to September 19 2021 at -65.0°S 149.5°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: September 15 2021 to September 19 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 5.7 °C
  • Mean temperature: 0.1 °C
  • Maximum temperature anomaly: 12.2 °C
  • Maximum temperature: 2.4 °C

Event center: -65.0°S 149.5°E

Area affected: 472416 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_2021-Sep-15_to_2021-Sep-19_149.5_-65.0

Cold spell occuring from September 13 2021 to September 16 2021 at -75.5°S 11.0°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: September 13 2021 to September 16 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -9.0 °C
  • Mean temperature: -59.3 °C
  • Minimum temperature anomaly: -11.3 °C
  • Minimum temperature: -63.4 °C

Event center: -75.5°S 11.0°E

Area affected: 79666 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_2021-Sep-13_to_2021-Sep-16_11.0_-75.5

Cold spell occuring from September 11 2021 to September 18 2021 at -68.5°S 11.5°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: September 11 2021 to September 18 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -7.3 °C
  • Mean temperature: -20.1 °C
  • Minimum temperature anomaly: -9.5 °C
  • Minimum temperature: -27.7 °C

Event center: -68.5°S 11.5°E

Area affected: 711990 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_2021-Sep-11_to_2021-Sep-18_11.5_-68.5