Hydrological dynamics of snowmelt induced streamflow in a high mountain catchment of the Pyrenees under contrasted snow accumulation and duration years DOI Open Access
Juan Ignacio López‐Moreno, Jesús Revuelto, Elena González-Alonso

и другие.

Authorea (Authorea), Год журнала: 2023, Номер unknown

Опубликована: Сен. 28, 2023

Snowmelt drives a large portion of streamflow in many mountain areas the world. However, water pathways since snow melts until reaches streams, and its associated transit time is still largely unknown. Such processes are important for drawing conclusions about hydrological role upstream snowpack after melting. This work analyzes first influence snowmelt on spring years different accumulation duration, an alpine catchment central Spanish Pyrenees. A multi-approach research was performed, by combining analysis climatic, snow, streamflow, piezometric levels, temperature, electrical conductivity isotopic (δ O) data. Results show that played preeminent response during spring. Liquid precipitation melting period also determined shape hydrographs. When cover disappeared from catchment, soil storage showed sharp decline. Consequently, conductivity, temperature δ O marked tipping point towards higher values. The fast to meteorological fluctuations, as well diel fluctuations period, strongly suggests small, leading short meltwater times. As consequence this behavior, independently amount accumulated date, summer remained always low, with small runoff peaks driven rainfall events. expected reduction duration area next future will bring earlier rise stream temperature. given low capacity contribution events runoff, annual balance seasonality would not change drastically.

Язык: Английский

Toward impact-based monitoring of drought and its cascading hazards DOI
Amir AghaKouchak,

Laurie S. Huning,

Mojtaba Sadegh

и другие.

Nature Reviews Earth & Environment, Год журнала: 2023, Номер 4(8), С. 582 - 595

Опубликована: Авг. 1, 2023

Язык: Английский

Процитировано

40
Is snow drought a messenger for the upcoming severe drought period? A case study in the Upper Mississippi River Basin DOI
Serhan Yeşilköy, Özlem Baydaroğlu, İbrahim Demir

и другие.

Atmospheric Research, Год журнала: 2024, Номер 309, С. 107553 - 107553

Опубликована: Июнь 27, 2024

Язык: Английский

Процитировано

12
Evolution of global snow drought characteristics from 1850 to 2100 DOI Creative Commons
Marianne Cowherd, L. Ruby Leung, Manuela Girotto

и другие.

Environmental Research Letters, Год журнала: 2023, Номер 18(6), С. 064043 - 064043

Опубликована: Май 23, 2023

Abstract Seasonal snow is an integral part of the global water supply and storage system. Snow droughts impact ecological, agricultural, urban systems by altering amount timing meltwater delivery. These are characterized a lack on-the-ground (snow equivalent, SWE) that can be caused low total precipitation (dry drought) or proportion falling as snowfall (warm drought), often combined with early melt. The standardized SWE index (SWEI) ranks current status for given location compared to baseline condition identifies existence, but not cause, drought. In this work, we use estimates SWE, temperature, from nine coupled model intercomparison project phase 6 (CMIP6) models quantify frequency, severity, type globally historical future scenarios. Compared (1850–1900) drought frequency more than doubles under socio-economic pathway (SSP)2-4.5 SSP5-8.5; all increase in comes warm droughts. probability distribution SWEI major snowy basins around world likely centered on negative values, which corresponds severe and, only moderate changes spread, frequent CMIP6 simulations pinpoint emerging threat resources highlight need explore higher resolution better capture complex mountain topography, wildland fires, snow-forest interactions.

Язык: Английский

Процитировано

21
Water‐rock interactions drive chemostasis DOI Creative Commons
Sara R. Warix, Alexis Navarre‐Sitchler, Kamini Singha

и другие.

Hydrological Processes, Год журнала: 2024, Номер 38(2)

Опубликована: Фев. 1, 2024

Abstract The western U.S. is experiencing shifts in recharge due to climate change, and it currently unclear how hydrologic will impact geochemical weathering stream concentration–discharge ( C – Q ) patterns. Hydrologists often use analyses assess feedbacks between discharge geochemistry, given abundant chemistry data. Chemostasis commonly observed, indicating that controls, rather than changes discharge, are shaping However, few studies investigate reactions evolve along groundwater flowpaths before contributes streamflow, resulting potential omission of important controls such as coupled mineral dissolution clay precipitation subsequent cation exchange. Here, we field observations—including age, chemistry—to analyse relations the Manitou Experimental Forest Colorado Front Range, USA, a site where chemostasis observed. We combine data with laboratory whole rock x‐ray diffraction soil cation‐extraction experiments role clays play influencing chemistry. Geochemist's Workbench identify driving subsequently suggest change trends. show age increases, slope solute response not impacted. Instead, primary drive strong for silica aluminium enable exchange buffers calcium magnesium concentrations, leading weak chemostatic behaviour divalent cations. influence on highlights importance delineating flowpaths, upgradient downgradient Our results be impacted by future decreasing flows, thus exists, continue persist despite recharge.

Язык: Английский

Процитировано

7
Local Topography and Streambed Hydraulic Conductivity Influence Riparian Groundwater Age and Groundwater‐Surface Water Connection DOI Creative Commons
Sara R. Warix, Alexis Navarre‐Sitchler, Andrew H. Manning

и другие.

Water Resources Research, Год журнала: 2023, Номер 59(9)

Опубликована: Сен. 1, 2023

Abstract The western U.S. is experiencing increasing rain to snow ratios due climate change, and scientists are uncertain how changing recharge patterns will affect future groundwater‐surface water connection. We examined watershed topography streambed hydraulic conductivity impact groundwater age stream discharge at eight sites along a headwater within the Manitou Experimental Forest, CO USA. To do so, we measured: (a) continuous discharge/level specific from April November 2021; (b) biweekly chemistry; (c) chlorofluorocarbons tritium in spring fall; (d) conductivity; (e) local slope. used chemistry data calculate fluorite saturation states that were inform end‐member mixing analysis of streamflow source. then combined chlorofluorocarbon estimate composition riparian groundwater. Our suggest drying more probable where slope steep high. In these areas, source shifted seasonally, as indicated by increases, observed high fraction streamflow, primarily interflow adjacent hillslopes. contrast, flat low, likely persist was seasonally constant buffered storage alluvial sediments. Groundwater paired with characterization subsurface characteristics enabled identification controls on patterns.

Язык: Английский

Процитировано

16
Assessment of streamwater age using water stable isotopes in a headwater catchment of the central Tibetan Plateau DOI
Shaoyong Wang, Xiaobo He, Shichang Kang

и другие.

Journal of Hydrology, Год журнала: 2023, Номер 618, С. 129175 - 129175

Опубликована: Янв. 31, 2023

Язык: Английский

Процитировано

15
Relative humidity and solar radiation exacerbate snow drought risk in the headstreams of the Tarim River DOI
Zhixia Wang,

Shengzhi Huang,

Zhenxia Mu

и другие.

Atmospheric Research, Год журнала: 2023, Номер 297, С. 107091 - 107091

Опубликована: Ноя. 10, 2023

Язык: Английский

Процитировано

14
Inferring Snowpack Contributions and the Mean Elevation of Source Water to Streamflow in the Willamette River, Oregon Using Water Stable Isotopes DOI
J. Renée Brooks, Henry M. Johnson, Keira Johnson

и другие.

Hydrological Processes, Год журнала: 2025, Номер 39(5)

Опубликована: Май 1, 2025

ABSTRACT Snowpacks are an important water source for mountainous rivers, worldwide. The timing and volume of streamflow in systems reliant on snowmelt can be affected by changes snow accumulation melt time. In the Cascade Range (western USA), seasonal snowpacks predicted to decrease over 50% within next century. During last decade, have varied between 17% 150% median 1981–2023 peak snowpack values. To understand how variation could affect Willamette River streamflow, we monitored stable isotopes 13 years from two sites mainstem 60 streams draining small catchments across Basin. Small catchment isotope values integrated dampened precipitation with elevation, providing a marker determining mean elevation which was derived. winter, while accumulates mountains, most originates rainfall at lower elevations. summer low‐flow conditions, river derived winter that accumulated elevations above 1200 m, represents < 12% Basin area. Peak equivalent previous positively correlated proportion > m during period, but both high (> m) temperature trends explained nearly as much variance equivalent. However, after accounting climate trends, estimated amount high‐elevation has decreased past years. Improved understanding origin of, in, will aid reconciling human demands biological instream requirements periods low snowpack.

Язык: Английский

Процитировано

0
Snow droughts over 1951–2021 show a decreasing and then increasing trend DOI

Guna Ari,

Dongwei Liu,

Xuancheng Zhao

и другие.

Atmospheric Research, Год журнала: 2025, Номер unknown, С. 108237 - 108237

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0
Carbon‐Water Tradeoffs in Old‐Growth and Young Forests of the Pacific Northwest DOI Creative Commons

Michael D. Farinacci,

Julia Jones, Lucas C. R. Silva

и другие.

AGU Advances, Год журнала: 2024, Номер 5(4)

Опубликована: Июль 18, 2024

Abstract Despite much interest in relationships among carbon and water forests, few studies assess how accumulation scales with use forested watersheds varied histories. This study quantified tree growth, efficiency, carbon‐water tradeoffs of young versus mature/old‐growth forest three small (13–22 ha) the H.J. Andrews Experimental Forest, Oregon, USA. To quantify scale from trees to watersheds, tree‐ring records greenness wetness indices remote sensing were combined long‐term vegetation, climate, streamflow data (trees ∼45 years age) a watershed 150–500 age). Biomass production was closely related use; efficiency (basal area increment per unit evapotranspiration) lower; steeper plantations compared old‐growth for which growth record begins 1850s. Greenness Landsat imagery not significant predictors or over period 1984 2017, soil C N did differ significantly watersheds. Multiple lines evidence show that mature store accumulate more carbon, are drought resistant, better sustain availability forests. These results provide basis reconstructions predictions potentially broadly applicable, because first‐order occupy 80%–90% large river basins representative history Pacific Northwest region.

Язык: Английский

Процитировано

3