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Streamflow reconstructions using tree-ring-based paleo proxies for the Sava river basin (Slovenia)
ID
Tootle, Glenn
(
Avtor
),
ID
Elliott, Emily
(
Avtor
),
ID
Bezak, Nejc
(
Avtor
),
ID
Formetta, Giuseppe
(
Avtor
)
PDF - Predstavitvena datoteka,
prenos
(2,82 MB)
MD5: 332B94D6E436F3D95B760A5B8092639C
URL - Izvorni URL, za dostop obiščite
https://www.mdpi.com/2306-5338/10/7/138
Galerija slik
Izvleček
The Sava River Basin (SRB) extends across six countries (Slovenia, Croatia, Bosnia and Herzegovina, Serbia, Albania, and Montenegro) and is a major tributary of the Danube River (DR). The Sava River (SR) originates in the alpine region of Slovenia, and, in support of a Slovenian government initiative to increase clean, sustainable energy, multiple hydropower facilities have been constructed within the past ~20 years. Given the importance of this river system for varying demands, including energy production, information about past (paleo) drought and pluvial periods would provide important information to water managers and planners. Seasonal (April–May–June–July–August–September—AMJJAS) streamflow data were obtained for two SRB gauges (Jesenice and Catez) in Slovenia. The Jesenice gauge is in the extreme headwaters of the SR, upstream of any major water control structures, and is considered an unimpaired (minimal anthropogenic influence) gauge. The Catez gauge is located on the SR near the Slovenia–Croatia border, thus providing an estimate of streamflow leaving Slovenia (entering Croatia). The Old World Drought Atlas (OWDA) provides an annual June–July–August (JJA) self-calibrating Palmer Drought Severity Index (scPDSI) derived from 106 tree-ring chronologies for 5414 grid points across Europe from 0 to 2012 AD. In lieu of tree-ring chronologies, this dataset was used as a proxy to reconstruct (for ~2000 years) seasonal streamflow. Prescreening methods included the correlation and temporal stability of seasonal streamflow and scPDSI cells. The retained scPDSI cells were then used as predictors (independent variables) to reconstruct streamflow (predictive and/or dependent variables) in regression-based models. This resulted in highly skillful reconstructions of SRB seasonal streamflow from 0 to 2012 AD. The reconstructions were evaluated, and both low flow (i.e., drought) and high flow (i.e., pluvial) periods were identified for various filters (5-year to 30-year). When evaluating the most recent ~20 years (2000 to present), multiple low-flow (drought) periods were identified. For various filters (5-year to 15-year), the 2003 end-year consistently ranked as one of the lowest periods, while the 21-year period ending in 2012 was the lowest flow period in the ~2000-year reconstructed-observed-historic period of record. The ~30-year period ending in 2020 was the lowest flow period since the early 6th century. A decrease in pluvial (wet) periods was identified in the observed-historic record when compared to the paleo record, again confirming an apparent decline in streamflow. Given the increased activities (construction of water control structures) impacting the Sava River, the results provide important information to water managers and planners.
Jezik:
Angleški jezik
Ključne besede:
hydrology
,
Sava river basin
,
reconstruction
,
streamflow
,
dendroclimatology
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FGG - Fakulteta za gradbeništvo in geodezijo
Status publikacije:
Objavljeno
Različica publikacije:
Objavljena publikacija
Leto izida:
2023
Št. strani:
12 str.
Številčenje:
Letn. 10, št. 7, art. 138
PID:
20.500.12556/RUL-147662
UDK:
551.583.4:556.1(497.4)
ISSN pri članku:
2306-5338
DOI:
10.3390/hydrology10070138
COBISS.SI-ID:
158226179
Datum objave v RUL:
10.07.2023
Število ogledov:
890
Število prenosov:
73
Metapodatki:
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Objavi na:
Gradivo je del revije
Naslov:
Hydrology
Skrajšan naslov:
Hydrology
Založnik:
MDPI AG
ISSN:
2306-5338
COBISS.SI-ID:
523117081
Licence
Licenca:
CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:
http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:
To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
hidrologija
,
porečje Save
,
rekonstrukcija podatkov
,
pretoki
,
dendroklimatologija
Projekti
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P2-0180
Naslov:
Vodarstvo in geotehnika: orodja in metode za analize in simulacije procesov ter razvoj tehnologij
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
J6-4628
Naslov:
Vrednotenje hibridne infrastrukture za zmanjševanje ogroženosti pod vplivom podnebnih sprememb
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