J 2016

Drought reconstruction based on grape harvest dates for the Czech Lands, 1499-2012

MOŽNÝ, Martin, Rudolf BRÁZDIL, Petr DOBROVOLNÝ, Miroslav TRNKA, Věra POTOPOVÁ et. al.

Basic information

Original name

Drought reconstruction based on grape harvest dates for the Czech Lands, 1499-2012

Authors

MOŽNÝ, Martin (203 Czech Republic, guarantor), Rudolf BRÁZDIL (203 Czech Republic, belonging to the institution), Petr DOBROVOLNÝ (203 Czech Republic, belonging to the institution), Miroslav TRNKA (203 Czech Republic), Věra POTOPOVÁ (203 Czech Republic), Petr HLAVINKA (203 Czech Republic), Lenka BARTOŠOVÁ (203 Czech Republic), Pavel ZAHRADNÍČEK (203 Czech Republic), Petr ŠTĚPÁNEK (203 Czech Republic) and Zdeněk ŽALUD (203 Czech Republic)

Edition

Climate Research, OLDENDORF LUHE, INTER-RESEARCH, 2016, 0936-577X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10500 1.5. Earth and related environmental sciences

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 1.578

RIV identification code

RIV/00216224:14310/16:00094568

Organization unit

Faculty of Science

UT WoS

000388194400003

Keywords in English

Climate reconstruction; Drought; Grape harvest dates; SPEI; Bohemian wine-growing region

Tags

Změněno: 13/4/2018 13:18, Ing. Nicole Zrilić

Abstract

V originále

The timing of maturity of grapes depends on the weather conditions during the growing season. This study relies on the dependence of harvest dates on the air temperature and dry/wet conditions. Recorded observations show that increases in air temperature and dryness are associated with earlier grape harvests. Documentary data of grape harvests from the Bohemian wine-growing region (mainly northwest of Prague) were combined with mean Standardized Precipitation Evapotranspiration Index (SPEI) series starting in 1841 and ordinary least square regression with subsequent scaling to reconstruct the mean SPEI values for this area for April to August from 1499 to 2012. The reconstructed SPEI series explains 75% of the drought variability since 1841. All dry years that were detected by the reconstructed April-August SPEI values correlate well with years of excellent and good red wine of vintage quality for 1499-1840. A comparison of the reconstructed series with other SPEI reconstructions from the Czech Lands (the recent Czech Republic) based on documentary and instrumental data shows good agreement. The results demonstrate that grape harvest series may be used as a proxy for drought reconstruction in the central European region.

Links

GA13-04291S, research and development project
Name: Rekonstrukce hydro-klimatických podmínek jara a léta posledního milénia v České republice na základě dubové standardní chronologie
Investor: Czech Science Foundation
GA13-19831S, research and development project
Name: Hydrometeorologické extrémy na jižní Moravě odvozené z dokumentárních pramenů
Investor: Czech Science Foundation