Category: Extremes affecting Antarctica

Cold spell occuring from April 21 2021 to April 23 2021 at -71.5°S 277.5°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 21 2021 to April 23 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -10.4 °C
  • Mean temperature: -21.4 °C
  • Minimum temperature anomaly: -15.4 °C
  • Minimum temperature: -30.9 °C

Event center: -71.5°S 277.5°E

Area affected: 91778 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-Apr-21_to_2021-Apr-23_277.5_-71.5

Cold spell occuring from April 20 2021 to April 22 2021 at -75.5°S 207.0°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 20 2021 to April 22 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -11.2 °C
  • Mean temperature: -27.2 °C
  • Minimum temperature anomaly: -13.8 °C
  • Minimum temperature: -32.6 °C

Event center: -75.5°S 207.0°E

Area affected: 87009 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-Apr-20_to_2021-Apr-22_207.0_-75.5

Heat wave occuring from April 18 2021 to April 22 2021 at -66.0°S 298.5°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 18 2021 to April 22 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 10.1 °C
  • Mean temperature: -4.3 °C
  • Maximum temperature anomaly: 15.5 °C
  • Maximum temperature: 1.4 °C

Event center: -66.0°S 298.5°E

Area affected: 106642 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-Apr-18_to_2021-Apr-22_298.5_-66.0

Cold spell occuring from April 18 2021 to April 24 2021 at -75.5°S 45.0°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 18 2021 to April 24 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -8.5 °C
  • Mean temperature: -60.8 °C
  • Minimum temperature anomaly: -13.3 °C
  • Minimum temperature: -73.1 °C

Event center: -75.5°S 45.0°E

Area affected: 706318 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-Apr-18_to_2021-Apr-24_45.0_-75.5

Heat wave occuring from April 16 2021 to April 19 2021 at -75.0°S 118.0°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 16 2021 to April 19 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 9.6 °C
  • Mean temperature: -50.9 °C
  • Maximum temperature anomaly: 14.6 °C
  • Maximum temperature: -46.3 °C

Event center: -75.0°S 118.0°E

Area affected: 69869 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-Apr-16_to_2021-Apr-19_118.0_-75.0

Heat wave occuring from April 15 2021 to April 19 2021 at -71.0°S 148.0°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 15 2021 to April 19 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 11.5 °C
  • Mean temperature: -27.2 °C
  • Maximum temperature anomaly: 20.0 °C
  • Maximum temperature: -7.9 °C

Event center: -71.0°S 148.0°E

Area affected: 409830 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-Apr-15_to_2021-Apr-19_148.0_-71.0

Heat wave occuring from April 15 2021 to April 18 2021 at -71.0°S 181.0°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 15 2021 to April 18 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 11.6 °C
  • Mean temperature: -5.7 °C
  • Maximum temperature anomaly: 14.5 °C
  • Maximum temperature: -1.1 °C

Event center: -71.0°S 181.0°E

Area affected: 52652 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-Apr-15_to_2021-Apr-18_181.0_-71.0

Heat wave occuring from April 13 2021 to April 15 2021 at -67.5°S 74.0°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: April 13 2021 to April 15 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 8.9 °C
  • Mean temperature: -5.8 °C
  • Maximum temperature anomaly: 14.3 °C
  • Maximum temperature: -1.7 °C

Event center: -67.5°S 74.0°E

Area affected: 107373 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-Apr-13_to_2021-Apr-15_74.0_-67.5

Cold spell occuring from April 11 2021 to April 21 2021 at -66.5°S 44.5°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 11 days

Time span: April 11 2021 to April 21 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -3.6 °C
  • Mean temperature: -6.3 °C
  • Minimum temperature anomaly: -12.0 °C
  • Minimum temperature: -25.6 °C

Event center: -66.5°S 44.5°E

Area affected: 775557 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-Apr-11_to_2021-Apr-21_44.5_-66.5

Heat wave occuring from April 10 2021 to April 16 2021 at -76.0°S 344.5°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: April 10 2021 to April 16 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 10.9 °C
  • Mean temperature: -23.2 °C
  • Maximum temperature anomaly: 19.7 °C
  • Maximum temperature: -0.5 °C

Event center: -76.0°S 344.5°E

Area affected: 937013 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-Apr-10_to_2021-Apr-16_344.5_-76.0