Setting the tree-ring record straight

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F20%3A00535241" target="_blank" >RIV/86652079:_____/20:00535241 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/20:00117431

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s00382-020-05433-w" target="_blank" >https://link.springer.com/article/10.1007/s00382-020-05433-w</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00382-020-05433-w" target="_blank" >10.1007/s00382-020-05433-w</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Setting the tree-ring record straight

Popis výsledku v původním jazyce

Tree-ring chronologies are the main source for annually resolved and absolutely dated temperature reconstructions of the last millennia and thus for studying the intriguing problem of climate impacts. Here we focus on central Europe and compare the tree-ring based temperature reconstruction with reconstructions from harvest dates, long meteorological measurements, and historical model data. We find that all data are long-term persistent, but in the tree-ring based reconstruction the strength of the persistence quantified by the Hurst exponent is remarkably larger (h congruent to 1.02) than in the other data (h = 0.52-0.69), indicating an unrealistic exaggeration of the historical temperature variations. We show how to correct the tree-ring based reconstruction by a mathematical transformation that adjusts the persistence and leads to reduced amplitudes of the warm and cold periods. The new transformed record agrees well with both the observational data and the harvest dates-based reconstructions and allows more realistic studies of climate impacts. It confirms that the present warming is unprecedented.

Název v anglickém jazyce

Setting the tree-ring record straight

Popis výsledku anglicky

Tree-ring chronologies are the main source for annually resolved and absolutely dated temperature reconstructions of the last millennia and thus for studying the intriguing problem of climate impacts. Here we focus on central Europe and compare the tree-ring based temperature reconstruction with reconstructions from harvest dates, long meteorological measurements, and historical model data. We find that all data are long-term persistent, but in the tree-ring based reconstruction the strength of the persistence quantified by the Hurst exponent is remarkably larger (h congruent to 1.02) than in the other data (h = 0.52-0.69), indicating an unrealistic exaggeration of the historical temperature variations. We show how to correct the tree-ring based reconstruction by a mathematical transformation that adjusts the persistence and leads to reduced amplitudes of the warm and cold periods. The new transformed record agrees well with both the observational data and the harvest dates-based reconstructions and allows more realistic studies of climate impacts. It confirms that the present warming is unprecedented.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10509 - Meteorology and atmospheric sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Climate Dynamics

ISSN

0930-7575

e-ISSN

—

Svazek periodika

55

Číslo periodika v rámci svazku

11-12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

3017-3024

Kód UT WoS článku

000566088600002

EID výsledku v databázi Scopus

2-s2.0-85090211773