Category: Cold spells affecting Antarctica

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 4 days

Time span: March 22 2023 to March 25 2023

Statistics over entire affected area:

• Mean temperature anomaly: -7.5 °C
• Mean temperature: -26.3 °C
• Minimum temperature anomaly: -10.7 °C
• Minimum temperature: -36.8 °C

Event center: -75.0°S 227.0°E

Area affected: 78458 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-Mar-22_to_2023-Mar-25_227.0_-75.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 8 days

Time span: March 21 2023 to March 28 2023

Statistics over entire affected area:

• Mean temperature anomaly: -10.8 °C
• Mean temperature: -38.4 °C
• Minimum temperature anomaly: -15.1 °C
• Minimum temperature: -45.2 °C

Event center: -78.5°S 189.0°E

Area affected: 93537 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-Mar-21_to_2023-Mar-28_189.0_-78.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 4 days

Time span: March 20 2023 to March 23 2023

Statistics over entire affected area:

• Mean temperature anomaly: -6.6 °C
• Mean temperature: -57.9 °C
• Minimum temperature anomaly: -9.4 °C
• Minimum temperature: -61.3 °C

Event center: -83.0°S 106.0°E

Area affected: 122615 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-Mar-20_to_2023-Mar-23_106.0_-83.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 6 days

Time span: March 19 2023 to March 24 2023

Statistics over entire affected area:

• Mean temperature anomaly: -8.2 °C
• Mean temperature: -38.9 °C
• Minimum temperature anomaly: -11.2 °C
• Minimum temperature: -43.6 °C

Event center: -83.0°S 257.5°E

Area affected: 158701 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-Mar-19_to_2023-Mar-24_257.5_-83.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 7 days

Time span: March 11 2023 to March 17 2023

Statistics over entire affected area:

• Mean temperature anomaly: -9.3 °C
• Mean temperature: -36.9 °C
• Minimum temperature anomaly: -12.7 °C
• Minimum temperature: -41.2 °C

Event center: -81.0°S 207.0°E

Area affected: 67168 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-Mar-11_to_2023-Mar-17_207.0_-81.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 5 days

Time span: March 07 2023 to March 11 2023

Statistics over entire affected area:

• Mean temperature anomaly: -7.7 °C
• Mean temperature: -33.0 °C
• Minimum temperature anomaly: -11.1 °C
• Minimum temperature: -38.5 °C

Event center: -76.5°S 289.5°E

Area affected: 50550 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-Mar-07_to_2023-Mar-11_289.5_-76.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 9 days

Time span: February 28 2023 to March 08 2023

Statistics over entire affected area:

• Mean temperature anomaly: -5.3 °C
• Mean temperature: -41.6 °C
• Minimum temperature anomaly: -11.8 °C
• Minimum temperature: -56.9 °C

Event center: -77.5°S 60.0°E

Area affected: 335819 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-Feb-28_to_2023-Mar-08_60.0_-77.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 11 days

Time span: February 27 2023 to March 09 2023

Statistics over entire affected area:

• Mean temperature anomaly: -7.3 °C
• Mean temperature: -51.4 °C
• Minimum temperature anomaly: -10.4 °C
• Minimum temperature: -60.3 °C

Event center: -79.5°S 102.0°E

Area affected: 1198095 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-Feb-27_to_2023-Mar-09_102.0_-79.5