Fields of study > Air temperature
Diurnal temperature range (DTR)
Diurnal temperature range (DTR): annual mean value of the difference between daily maximum (TX) and minimum (TN) temperatures. The unit of measurement is degree Celsius (°C).
The evolution of DTR anomaly (ADTR, difference between the annual value of DTR and the mean value of DTR 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 DTR index is shown.
The annual mean of DTR for the Pyrenees is obtained from the annual DTR 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 DTR for the 4 zones of the Massif is obtained from the annual DTR values of the representative series located in each zone.
Diurnal temperature range (DTR)
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Evolution of the annual DTR anomaly (ADTR, in ºC) in the Pyrenees for the period 1959-2020. Red points (positive ADTR) indicate a DTR value higher than the reference period value and blue points (negative ADTR) indicate a DTR value lower than the reference period value.
The dotted line shows the linear trend of the series (+0,1 ºC/decade).
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CSV DTR anomaly - Pyrenees (1959-2020) Graph DTR anomaly - Pyrenees (1959-2020)Evolution of the annual DTR anomaly (ADTR, in ºC) in the Northern Pyrenees for the period 1959-2020. Red points (positive ADTR) indicate a DTR value higher than the reference period value and blue points (negative ADTR) indicate a DTR value lower than the reference period value.
The dotted line shows the linear trend of the series (+0,1 ºC/decade).
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CSV DTR anomaly - Northern Pyrenees (1959-2020) Graph DTR anomaly - Northern Pyrenees (1959-2020)Evolution of the annual DTR anomaly (ADTR, in ºC) in the Southern Pyrenees for the period 1959-2020. Red points (positive ADTR) indicate a DTR value higher than the reference period value and blue points (negative ADTR) indicate a DTR value lower than the reference period value.
The dotted line shows the linear trend of the series (+0,1 ºC/decade).
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CSV DTR anomaly - Southern Pyrenees (1959-2020) Graph DTR anomaly - Southern Pyrenees (1959-2020)Evolution of the annual DTR anomaly (ADTR, in ºC) in the Mediterranean Pyrenees for the period 1959-2020. Red points (positive ADTR) indicate a DTR value higher than the reference period value and blue points (negative ADTR) indicate a DTR value lower than the reference period value.
The dotted line shows the linear trend of the series (+0,1 ºC/decade).
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CSV DTR anomaly - Mediterranean Pyrenees (1959-2020) Graph DTR anomaly - Mediterranean Pyrenees (1959-2020)Evolution of the annual DTR anomaly (ADTR, in ºC) in the Atlantic Pyrenees for the period 1959-2020. Red points (positive ADTR) indicate a DTR value higher than the reference period value and blue points (negative ADTR) indicate a DTR value lower than the reference period value.
The dotted line shows the linear trend of the series (+0,1 ºC/decade).
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CSV DTR anomaly - Atlantic Pyrenees (1959-2020) Graph DTR anomaly - Atlantic Pyrenees (1959-2020)Evolution of the annual DTR value (in ºC) in HONDARRIBIA-MALKARROA (Euskadi) for the period 1959-2020.
The dotted line shows the linear trend of the series (+0,1 days/decade).
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CSV DTR - HONDARRIBIA (EUS) (1959-2020) Graph DTR - HONDARRIBIA (EUS) (1959-2020)Evolution of the annual DTR value (in ºC) in ANDORRA LA VELLA (Andorra) for the period 1959-2020.
The dotted line shows the linear trend of the series (+0,1 days/decade).
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CSV DTR - ANDORRA LA VELLA (AND) (1959-2020) Graph DTR - ANDORRA LA VELLA (AND) (1959-2020)Evolution of the annual DTR value (in ºC) in RANSOL (Andorra) for the period 1959-2020.
The dotted line shows the linear trend of the series (+0,1 days/decade).
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CSV DTR - RANSOL (AND) (1959-2020) Graph DTR - RANSOL (AND) (1959-2020)Evolution of the annual DTR value (in ºC) in ASCOU (Occitanie) for the period 1959-2020.
The dotted line shows the linear trend of the series (+0,1 days/decade).
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CSV DTR - ASCOU (OCC) (1959-2020) Graph DTR - ASCOU (OCC) (1959-2020)Evolution of the annual DTR value (in ºC) in LORP-SENTARAILLE (Occitanie) for the period 1959-2020.
The dotted line shows the linear trend of the series (+0,1 days/decade).
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CSV DTR - LORP-SENTARAILLE (OCC) (1959-2020) Graph DTR - LORP-SENTARAILLE (OCC) (1959-2020)Evolution of the annual DTR value (in ºC) in BAGNERES DE LUCHON (Occitanie) for the period 1959-2020.
The dotted line shows the linear trend of the series (+0,1 days/decade).
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CSV DTR - BAGNERES DE LUCHON (OCC) (1959-2020) Graph DTR - BAGNERES DE LUCHON (OCC) (1959-2020)Evolution of the annual DTR value (in ºC) in LARUNS-ARTOUSTE (Nouvelle-Aquitaine) for the period 1959-2020.
The dotted line shows the linear trend of the series (+0,1 days/decade).
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CSV DTR - LARUNS-ARTOUSTE (NAQ) (1959-2020) Graph DTR - LARUNS-ARTOUSTE (NAQ) (1959-2020)Evolution of the annual DTR value (in ºC) in UZEIN-PAU (Nouvelle-Aquitaine) for the period 1959-2020.
The dotted line shows the linear trend of the series (+0,1 days/decade).
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CSV DTR - UZEIN-PAU (NAQ) (1959-2020) Graph DTR - UZEIN-PAU (NAQ) (1959-2020)Evolution of the annual DTR value (in ºC) in PERPIGNAN (Occitanie) for the period 1959-2020.
The dotted line shows the linear trend of the series (+0,1 days/decade).
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CSV DTR - PERPIGNAN (OCC) (1959-2020) Graph DTR - PERPIGNAN (OCC) (1959-2020)Evolution of the annual DTR value (in ºC) in FIGUERES (Catalunya) for the period 1959-2020.
The dotted line shows the linear trend of the series (+0,1 days/decade).
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CSV DTR - FIGUERES (CAT) (1959-2020) Graph DTR - FIGUERES (CAT) (1959-2020)Evolution of the annual DTR value (in ºC) in TREMP (Catalunya) for the period 1959-2020.
The dotted line shows the linear trend of the series (+0,1 days/decade).
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CSV DTR - TREMP (CAT) (1959-2020) Graph DTR - 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.
