d18O (TR15YONW00): interpretation3_scope: '' has been replaced by 'isotope'
d18O (TR15YONW00): interpretation4_scope: '' has been replaced by 'isotope'

Column 'addRH9Rk9vDpOXvYMeo1', with variable name 'yearEnsemble', was added to the dataset

tree-ring cellulose of Q. petraea
and Q. robur

TP: added elevations. OCh: z-score data, interpr. added

The oldest part of the reconstruction is characterized by a prolonged period of relatively wet conditions
(1360a€“1450), followed by a period of drier conditions until 1600. Another wet period until 1760 follows, with
a short increase to relatively drier conditions around 1720. The most marked trend in the reconstruction is the shift to
dry conditions from 1760 to 1850. The late 20th century is characterized by increasingly dry summers, but these SPEI
values are not unprecedented in the record.

T_air (positive), P_amount (negative), SPEI (negative)

Drought conditions lead to enriched soil water and leaf water.

d18O (TR16LAAN00): interpretation3_scope: '' has been replaced by 'isotope'
d18O (TR16LAAN00): interpretation4_scope: '' has been replaced by 'isotope'

Column 'addRehxAj7CzpNNQHEso', with variable name 'yearEnsemble', was added to the dataset

Labuhn, I., Daux, V., Girardclos, O., Stievenard, M., Pierre, M. and Masson-Delmotte, V.: French summer droughts since 1326 CE: a reconstruction based on tree ring cellulose δ18O, Climate of the Past, 12(5), 1101–1117, doi:10.5194/cp-12-1101-2016, 2016.

Wet conditions for large parts of the record prior to 1800, except two drier intervals in the 14th century and in the earlier half of the 16th century, and the late 20th century is characterized by increasing drought.

d18O (TR16LAFO00): interpretation3_scope: '' has been replaced by 'isotope'
d18O (TR16LAFO00): interpretation4_scope: '' has been replaced by 'isotope'

Column 'addR83EzWxFDuPup08SL', with variable name 'yearEnsemble', was added to the dataset

tree-ring cellulose mean d18O record representing five picea balfouriana trees

Positive correlation between cellulose d18O and precipitation d18O; the later is negatively influenced by precipitation amount.