Tree-ring record of winter temperature from Humla, Karnali, in central Himalaya: a 229 yearslong perspective for recent warming trend

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F20%3A00533263" target="_blank" >RIV/67985939:_____/20:00533263 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/86652079:_____/20:00534306

Výsledek na webu

<a href="https://doi.org/10.1080/04353676.2020.1751446" target="_blank" >https://doi.org/10.1080/04353676.2020.1751446</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/04353676.2020.1751446" target="_blank" >10.1080/04353676.2020.1751446</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Tree-ring record of winter temperature from Humla, Karnali, in central Himalaya: a 229 yearslong perspective for recent warming trend

Popis výsledku v původním jazyce

Tree rings are widely used to reconstruct past climates in regions where observational records of climate are short. In this study, we developed a 294 years-long (1718-2011 CE) ring-width chronology of the Himalayan Silver fir (Abies spectabilis (D.Don, Spach)) from Humla district in western Nepal to reconstruct winter minimum temperature for the remote region of central Himalaya where instrumental records are limited to past three or four decades. Ring-width chronology of the Himalayan Silver fir showed strongest and significant positive correlation with minimum winter temperature prior to the growing season. Based on this relationship, we reconstructed the winter season (previous October-current February) minimum temperature for western Nepal covering the period of 1780-2008 CE. Our reconstruction showed that winter minimum temperature is continuously increasing since the early twentieth century with unprecedented rapid warming in the latter half. The cold episodes in the reconstruction coincided with the major volcanic eruptions in the Northern Hemisphere and tropical regions. The spectral analysis using Multi-Taper Method revealed that the winter temperature in the north-western Himalaya has short- to medium-term periodicities of 2-3, 5.8-6.2, 7.9-8.2, 39-46 and 56-73 years, which suggest possible teleconnections with ENSO (El-Nino Southern Oscillation) and AMO (Atlantic Multidecadal Oscillation)

Název v anglickém jazyce

Tree-ring record of winter temperature from Humla, Karnali, in central Himalaya: a 229 yearslong perspective for recent warming trend

Popis výsledku anglicky

Tree rings are widely used to reconstruct past climates in regions where observational records of climate are short. In this study, we developed a 294 years-long (1718-2011 CE) ring-width chronology of the Himalayan Silver fir (Abies spectabilis (D.Don, Spach)) from Humla district in western Nepal to reconstruct winter minimum temperature for the remote region of central Himalaya where instrumental records are limited to past three or four decades. Ring-width chronology of the Himalayan Silver fir showed strongest and significant positive correlation with minimum winter temperature prior to the growing season. Based on this relationship, we reconstructed the winter season (previous October-current February) minimum temperature for western Nepal covering the period of 1780-2008 CE. Our reconstruction showed that winter minimum temperature is continuously increasing since the early twentieth century with unprecedented rapid warming in the latter half. The cold episodes in the reconstruction coincided with the major volcanic eruptions in the Northern Hemisphere and tropical regions. The spectral analysis using Multi-Taper Method revealed that the winter temperature in the north-western Himalaya has short- to medium-term periodicities of 2-3, 5.8-6.2, 7.9-8.2, 39-46 and 56-73 years, which suggest possible teleconnections with ENSO (El-Nino Southern Oscillation) and AMO (Atlantic Multidecadal Oscillation)

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

<a href="/cs/project/GA17-10280S" target="_blank" >GA17-10280S: Variabilita vlastností u rostlin jako nástroj k přizpůsobení měnícímu se klimatu - od fenotypů ke genům a zase zpět</a><br>

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

Geografiska Annaler Series A-Physical Geography

ISSN

0435-3676

e-ISSN

—

Svazek periodika

102

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

20

Strana od-do

297-316

Kód UT WoS článku

000528475100001

EID výsledku v databázi Scopus

2-s2.0-85085006491