J 2024

Application of RCS and signal-free RCS to tree-ring width and maximum latewood density data

HOMFELD, Inga K., Ulf BÜNTGEN, Frederick REINIG, Max C.A. TORBENSON, Jan ESPER et. al.

Základní údaje

Originální název

Application of RCS and signal-free RCS to tree-ring width and maximum latewood density data

Autoři

HOMFELD, Inga K. (garant), Ulf BÜNTGEN (276 Německo, domácí), Frederick REINIG, Max C.A. TORBENSON a Jan ESPER

Vydání

Dendrochronologia, Elsevier GmbH, 2024, 1125-7865

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10500 1.5. Earth and related environmental sciences

Stát vydavatele

Německo

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 3.000 v roce 2022

Organizační jednotka

Přírodovědecká fakulta

UT WoS

001236882700001

Klíčová slova anglicky

Maximum latewood density; Temperature; Tree -ring width; Scandinavia

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 16. 7. 2024 11:44, Mgr. Marie Šípková, DiS.

Anotace

V originále

Dendroclimatic research faces the challenge of selecting appropriate detrending methods for retaining lowfrequency signals in temperature reconstructions. Among the numerous methods available to dendrochronologists, regional curve standardisation (RCS) and the signal-free approach in combination with RCS (SF-RCS) are increasingly used to preserve the full spectrum of temperature variance in tree-ring data. Here, we apply RCS and SF-RCS to tree-ring width (TRW) and maximum latewood density (MXD) datasets composed of only living and combined living and relict trees from northern Scandinavia. Whereas RCS and SF-RCS produce highly similar chronologies when applied to composite (living-plus-relict) datasets, particularly for MXD, both methods fail to establish chronologies coherent with regional temperature trends when applied to living-tree datasets. Additional tests including pruning of well-replicated living-tree datasets, to approximate the heterogenous agestructure of composite datasets, reveal improved results and coherent trends in MXD. While this demonstrates the applicability of joint detrending and pruning techniques to retain meaningful low-frequency variance in living-tree MXD chronologies, similar improvements were not achieved with TRW, likely because of the much stronger age-trend inherent to this widely used proxy. Further tests with other tree species and in alpine environments are needed to verify these findings. However, such assessments require an adjustment of tree-ring sampling protocols to increase replication to 50+ trees per site including old and young individuals to facilitate data pruning.