#waterresources — Public Fediverse posts

Hydropower Site-Level Monthly Availability Data Ensemble For 1950–2100 At Existing And Potential Global Sites
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https://doi.org/10.1038/s41597-026-08515-2 <-- shared paper
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https://www.globalbioenergy.org/pros-and-cons-of-hydroelectric-energy/ <-- shared technical article
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“There is a growing demand for time-series data on hydropower availability at the site level, particularly to enable detailed investigation of the evolving role of hydropower in power grids. Such a dataset for both existing and potential hydropower sites, with global coverage, and incorporating future uncertainty, is still not available. Here, [the authors] present HydroSMADE (Hydropower Site-level Monthly Availability Data Ensemble) v1.0, a new open dataset that provides monthly hydropower availability for 1,593 existing and 124,333 potential sites worldwide over the period 1950–2100. The dataset is generated by using a global hydrologic model (Xanthos) with explicit representation of hydropower operations. Specifically, HydroSMADE distinguishes between storage and diversion sites, applies optimized operating rules, and incorporates site-specific characteristics such as generation capacity, maximum turbine flow, and reservoir storage. Driven by bias-corrected meteorological inputs, the site-level hydropower availability data is provided for 30 alternative future scenarios. Technical validation demonstrates consistency with reference datasets and literature across spatial scales, while highlighting improvements in representing operational differences between storage and diversion sites…”
#HydroSMADE #Hydropower #infrastructure #EnergySystems #Hydrology #OpenData #HEP #dam #dams #water #hydrology #HYDROGRAPHY #energy #renewable #hydroelectricpower #electricity #global #spatialdata #spatial #spatialanalysis #spatiotemporal #model #modeling #Xanthos #hydrometeorology #hydrogeomorphology #geomorphometry #metrics #viability #design #energysystems #engineering #planning #riverflow #volume #sustainability #climatechange #opendata #opensource #storage #diversion #waterresources

The impact of drought on Colliford Lake, England, UK

#Drought #Lakes #LandMonitoring #Landcover #Nature #OtherHumanActivities #WaterResources

▶️ 1 new picture from EU Space https://commons.wikimedia.org/wiki/File:The_impact_of_drought_on_Colliford_Lake%2C_England%2C_UK_%28Copernicus_2026-11-10%29.webp

How Does Forest Litter Extraction Commonly Used In The Past Affect The Runoff Reaction To Heavy Rainfalls?
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https://doi.org/10.1002/hyp.70752 <-- shared paper
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https://carnegiemnh.org/exploring-the-role-of-leaf-litter-in-our-forests/ <-- shared technical article
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https://doi.org/10.1007/s10021-026-01082-y <-- shared paper
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[with autumn here in the northern hemisphere, I have been thinking about this - and NOT just because I want to avoid raking the leaves!! 😊 ]
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“Until the middle of the 20th century, organic material was removed from the forest floor in Central Europe and used as bedding in the stables. The mixture of excrements and organic material was finally spread as fertilizer on the fields. The presented study aims at quantifying the hydrological effect of this historical extraction practise, also called litter raking, at extreme rainfall events. [The authors] measured surface runoff before and after such an intervention at four experimental plots simulating a rainfall intensity of 100 mm/h. Additionally, soil moisture has been recorded continuously on the plots with litter extraction and nearby control plots. The results of the rainfall simulation campaigns were as follows: One of the four experimental plots, which already produced a high amount of surface runoff without litter extraction, reacted with an increase of the surface runoff coefficient from 0.49 to 0.63 following this intervention. Another plot showed a slight reaction after litter extraction, with an increase of the surface runoff coefficient from 0.01 to 0.16, and on two plots there was hardly any reaction. After almost a year, the surface runoff that occurred after the intervention had already decreased again. The removal of ground vegetation and reduction of organic layers' thickness by litter raking causes faster changes in soil moisture and a more pronounced short-term response. Combining the different results of this study reveals a complex interplay of precipitation type, organic layers properties, its system status and the characteristics of the underlying mineral soil, which all together also controls the occurrence and intensity of surface runoff…”
#water #hydroloy #forest #ForestHydrology #LeafLitter #LitterRaking #ForestSoils #Hydrology #RunoffGeneration #ExtremeRainfall #SoilMoisture #Infiltration #NatureBasedSolutions #EcosystemProcesses #WatershedScience #ForestEcology #WaterResources #SoilHealth #ErosionControl #NutrientCycling #ClimateResilience #CatchmentHydrology #EnvironmentalScience #naturalsystems #soil #climate #climatechange #organics #leaf #litter #Europe #Tyrol #Austria #precipitation #rainfall #extremeweather #litterraking #research #study #simulation #runoff #spatialanalysis #spatiotemporal #surfacerunoff