J 2023

Attributing the drivers of runoff decline in the Thaya river basin

FISCHER, Milan, Petr PAVLÍK, Adam VIZINA, Jana BERNSTEINOVÁ, Juraj PARAJKA et. al.

Basic information

Original name

Attributing the drivers of runoff decline in the Thaya river basin

Authors

FISCHER, Milan (guarantor), Petr PAVLÍK, Adam VIZINA, Jana BERNSTEINOVÁ, Juraj PARAJKA, Martha ANDERSON, Jan ŘEHOŘ (203 Czech Republic, belonging to the institution), Jana IVANČICOVÁ, Petr ŠTĚPÁNEK, Jan BALEK, Christopher HAIN, Pavel TACHECÍ, Martin HANEL, Petr LUKEŠ, Monika BLÁHOVÁ, Jiří DLABAL, Pavel ZAHRADNÍČEK, Petr MÁCA, Jürgen KOMMA, Nad’a RAPANTOVÁ, Song FENG, Petr JANÁL, Evžen ZEMAN, Zdeněk ŽALUD, Günter BLÖSCHL and Miroslav TRNKA

Edition

Journal of Hydrology: Regional Studies, Elsevier, 2023, 2214-5818

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10503 Water resources

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 4.700 in 2022

RIV identification code

RIV/00216224:14310/23:00131053

Organization unit

Faculty of Science

UT WoS

001144455400001

Keywords in English

Climate change; Evapotranspiration; Precipitation; Remote sensing; Runoff; Trend analysis; Water balance

Tags

Tags

International impact, Reviewed
Změněno: 13/2/2024 12:11, Mgr. Marie Šípková, DiS.

Abstract

V originále

Study Region: The Thaya river basin provides multiple water uses in the transboundary region of Lower Austria and Southern Moravia. Due to the low precipitation (P) to reference evapotranspiration (ETo) ratio, the Thaya river basin is among the most sensitive to climate change in the region. Study Focus: The main objective is to understand the changes in the water balance variables including actual evapotranspiration (ET), P and runoff (RO) and their drivers for the period 1981–2020, and 2001–2020 in the case of using remote sensing data. New Hydrological Insights for the Region: The analyses confirm previously reported increasing trends in air temperature, ETo, and no trends in P. ET consistently increased during spring and decreased during summer, although insignificantly. This change was associated with a significant increase of spring vegetation development followed by summer stagnation. The spring RO shows significantly decreasing trends, especially in the upland water source areas. The correlation analysis reveals a different behavior along the altitude gradient, with ET in the uplands generally limited by available energy whilst in the lowlands by available water in spring. In summer, however, the entire basin is often water-limited, with a more pronounced limitation in the lowlands. Complex adaption measures reflecting the different hydroclimate relations across the altitudinal gradient are needed to sustain the water dependent sectors operating in the region facing increasing aridity.