TY  - JOUR
A1  - Herzschuh, Ulrike
A1  - Böhmer, Thomas
A1  - Li, Chenzhi
A1  - Cao, Xianyong
A1  - Hébert, Raphaël
A1  - Dallmeyer, Anne
A1  - Telford, Richard J.
A1  - Kruse, Stefan
T1  - Reversals in temperature-precipitation correlations in the Northern Hemisphere extratropics during the Holocene
T2  - Geophysical research letters
N2  - Future precipitation levels remain uncertain because climate models have struggled to reproduce observed variations in temperature-precipitation correlations. Our analyses of Holocene proxy-based temperature-precipitation correlations and hydrological sensitivities from 2,237 Northern Hemisphere extratropical pollen records reveal a significant latitudinal dependence and temporal variations among the early, middle, and late Holocene. These proxy-based variations are largely consistent with patterns obtained from transient climate simulations (TraCE21k). While high latitudes and subtropical monsoon areas show mainly stable positive correlations throughout the Holocene, the mid-latitude pattern is temporally and spatially more variable. In particular, we identified a reversal from positive to negative temperature-precipitation correlations in the eastern North American and European mid-latitudes from the early to mid-Holocene that mainly related to slowed down westerlies and a switch to moisture-limited convection under a warm climate. Our palaeoevidence of past temperature-precipitation correlation shifts identifies those regions where simulating past and future precipitation levels might be particularly challenging.
Y1  - 2022
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/61329
SN  - 0094-8276
SN  - 1944-8007
VL  - 49
IS  - 22
PB  - American Geophysical Union
CY  - Washington
ER  -