Fields of study > Air temperature
Warm spell duration index (WSDI)
Warm spell duation index (WSDI): annual count of days with at least 6 consecutive days with a maximum temperature (TX) greater than the 90th percentile of the daily TX series for the base period 1981-2010. The unit of measurement is days.
The evolution of WSDI anomaly (AWSDI, difference between the annual value of WSDI and the mean value of WSDI in the reference period 1981-2010) during the period 1959-2020 is shown for the Pyrenees and for 4 areas of the Massif (Northern Pyrenees, Southern Pyrenees, Mediterranean Pyrenees and Atlantic Pyrenees); for each of the 12 series analyzed, the evolution of WSDI index is shown.
The annual mean of WSDI for the Pyrenees is obtained from the annual WSDI values of 12 representative series of the Pyrenees massif (areas at different altitudes and on all slopes: north, south, east or Mediterranean and west or Atlantic), while the mean value of WSDI for the 4 zones of the Massif is obtained from the annual WSDI values of the representative series located in each zone.
Warm spell duration index (WSDI)
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Evolution of the annual WSDI anomaly (AWSDI, in days) in the Pyrenees for the period 1959-2020. Red points (positive AWSDI) indicate a WSDI value higher than the reference period value and blue points (negative AWSDI) indicate a WSDI value lower than the reference period value.
The dotted line shows the linear trend of the series (+2,3 days/decade).
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CSV WSDI anomaly - Pyrenees (1959-2020) Graph WSDI anomaly - Pyrenees (1959-2020)Evolution of the annual WSDI anomaly (AWSDI, in days) in the Northern Pyrenees for the period 1959-2020. Red points (positive AWSDI) indicate a WSDI value higher than the reference period value and blue points (negative AWSDI) indicate a WSDI value lower than the reference period value.
The dotted line shows the linear trend of the series (+1,7 days/decade).
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CSV WSDI anomaly - Northern Pyrenees (1959-2020) Graph WSDI anomaly - Northern Pyrenees (1959-2020)Evolution of the annual WSDI anomaly (AWSDI, in days) in the Southern Pyrenees for the period 1959-2020. Red points (positive AWSDI) indicate a WSDI value higher than the reference period value and blue points (negative AWSDI) indicate a WSDI value lower than the reference period value.
The dotted line shows the linear trend of the series (+2,9 days/decade).
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CSV WSDI anomaly - Southern Pyrenees (1959-2020) Graph WSDI anomaly - Southern Pyrenees (1959-2020)Evolution of the annual WSDI anomaly (AWSDI, in days) in the Mediterranean Pyrenees for the period 1959-2020. Red points (positive AWSDI) indicate a WSDI value higher than the reference period value and blue points (negative AWSDI) indicate a WSDI value lower than the reference period value.
The dotted line shows the linear trend of the series (+3,5 days/decade).
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CSV WSDI anomaly - Mediterranean Pyrenees (1959-2020) Graph WSDI anomaly - Mediterranean Pyrenees (1959-2020)Evolution of the annual WSDI anomaly (AWSDI, in days) in the Atlantic Pyrenees for the period 1959-2020. Red points (positive AWSDI) indicate a WSDI value higher than the reference period value and blue points (negative AWSDI) indicate a WSDI value lower than the reference period value.
The dotted line shows the linear trend of the series (+1,2 days/decade).
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CSV WSDI anomaly - Atlantic Pyrenees (1959-2020) Graph WSDI anomaly - Atlantic Pyrenees (1959-2020)Evolution of the annual WSDI value (in days) in HONDARRIBIA-MALKARROA (Euskadi) for the period 1959-2020.
The dotted line shows the linear trend of the series (+0,8 days/decade).
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CSV WSDI - HONDARRIBIA (EUS) (1959-2020) Graph WSDI - HONDARRIBIA (EUS) (1959-2020)Evolution of the annual WSDI value (in days) in ANDORRA LA VELLA (Andorra) for the period 1959-2020.
The dotted line shows the linear trend of the series (+2,5 days/decade).
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CSV WSDI - ANDORRA LA VELLA (AND) (1959-2020) Graph WSDI - ANDORRA LA VELLA (AND) (1959-2020)Evolution of the annual WSDI value (in days) in RANSOL (Andorra) for the period 1959-2020.
The dotted line shows the linear trend of the series (+4,7 days/decade).
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CSV WSDI - RANSOL (AND) (1959-2020) Graph WSDI - RANSOL (AND) (1959-2020)Evolution of the annual WSDI value (in days) in ASCOU (Occitanie) for the period 1959-2020.
The dotted line shows the linear trend of the series (+1,4 days/decade).
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CSV WSDI - ASCOU (OCC) (1959-2020) Graph WSDI - ASCOU (OCC) (1959-2020)Evolution of the annual WSDI value (in days) in LORP-SENTARAILLE (Occitanie) for the period 1959-2020.
The dotted line shows the linear trend of the series (+1,1 days/decade).
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CSV WSDI - LORP-SENTARAILLE (OCC) (1959-2020) Graph WSDI - LORP-SENTARAILLE (OCC) (1959-2020)Evolution of the annual WSDI value (in days) in BAGNERES DE LUCHON (Occitanie) for the period 1959-2020.
The dotted line shows the linear trend of the series (+1,5 days/decade).
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CSV WSDI - BAGNERES DE LUCHON (OCC) (1959-2020) Graph WSDI - BAGNERES DE LUCHON (OCC) (1959-2020)Evolution of the annual WSDI value (in days) in LARUNS-ARTOUSTE (Nouvelle-Aquitaine) for the period 1959-2020.
The dotted line shows the linear trend of the series (+1,0 days/decade).
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CSV WSDI - LARUNS-ARTOUSTE (NAQ) (1959-2020) Graph WSDI - LARUNS-ARTOUSTE (NAQ) (1959-2020)Evolution of the annual WSDI value (in days) in UZEIN-PAU (Nouvelle-Aquitaine) for the period 1959-2020.
The dotted line shows the linear trend of the series (+1,5 days/decade).
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CSV WSDI - UZEIN-PAU (NAQ) (1959-2020) Graph WSDI - UZEIN-PAU (NAQ) (1959-2020)Evolution of the annual WSDI value (in days) in PERPIGNAN (Occitanie) for the period 1959-2020.
The dotted line shows the linear trend of the series (+3,9 days/decade).
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CSV WSDI - PERPIGNAN (OCC) (1959-2020) Graph WSDI - PERPIGNAN (OCC) (1959-2020)Evolution of the annual WSDI value (in days) in FIGUERES (Catalunya) for the period 1959-2020.
The dotted line shows the linear trend of the series (+5,6 days/decade).
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CSV WSDI - FIGUERES (CAT) (1959-2020) Graph WSDI - FIGUERES (CAT) (1959-2020)Evolution of the annual WSDI value (in days) in TREMP (Catalunya) for the period 1959-2020.
The dotted line shows the linear trend of the series (+2,7 days/decade).
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CSV WSDI - TREMP (CAT) (1959-2020) Graph WSDI - TREMP (CAT) (1959-2020)
Bulletin of Climate Change Indicators of the Pyrenees 2020
The Bulletin of Climate Change Indicators of the Pyrenees (BICCPIR) 2020 aims to deepen the knowledge of the anthropic climate change effects in the Pyrenees. Thus, information on the climate evolution is provided through a set of indicators grouped by systems.
