Theoretical and Applied Climatology, Journal Year: 2024, Volume and Issue: 156(1)
Published: Dec. 20, 2024
Language: Английский
Theoretical and Applied Climatology, Journal Year: 2025, Volume and Issue: 156(4)
Published: March 21, 2025
Language: Английский
Citations
3
Geocarto International, Journal Year: 2024, Volume and Issue: 39(1)
Published: Jan. 1, 2024
Language: Английский
Citations
6
Journal of Hydrology Regional Studies, Journal Year: 2024, Volume and Issue: 54, P. 101849 - 101849
Published: June 5, 2024
Taiwan The spring drought in not only impacts local socio-economic conditions but also has global implications due to the region's critical role semiconductor manufacturing. Despite extensive research, studies have yet fully integrated multiple indices for comprehensive assessment of meteorological, hydrological, and agricultural droughts. This study addresses gap by utilizing Standardized Drought Indices (SDI), Temperature Index (STI), Normalized Difference Water (NDWI) explore characteristics potential climate change links droughts from 1982 2021 Taiwan. It employed methodologies including remote sensing, statistical analysis, machine learning, complemented ground-validated sensing data assimilation. reveals that presents a unique case dynamics, deviating typical patterns. In Taiwan, hydrological respond more quickly rainfall deficits than droughts, showing strong correlations (r > 0.8) moderate (0.4 < r 0.6) Furthermore, although decreased, hydrometeorological shown an increase since early 2000s, marked abrupt point. Notably, central southern regions are hotspots with significant temperature-drought coherence occurring 4–6-year resonant cycles. These findings suggest need enhancing management, particularly crucial Taiwan's industrial economy.
Language: Английский
Citations
3
Published: Jan. 16, 2025
Abstract. Hydrological drought is one of the main hydroclimatic hazards worldwide, affecting water availability, ecosystems and socioeconomic activities. This phenomenon commonly characterized by Standardized Streamflow Index (SSI), which widely used because its straightforward formulation calculation. Nevertheless, there limited understanding what SSI actually reveals about how climate anomalies propagate through terrestrial cycle. To find possible explanations, we implemented SUMMA hydrological model coupled with mizuRoute routing in six hydroclimatically different case study basins located on western slopes extratropical Andes, examined correlations between (computed from models for 1, 3 6-month time scales) potential explanatory variables – including precipitation simulated catchment-scale storages aggregated at scales. Additionally, analyzed impacts adopting scales propagation analyses specific events meteorological to soil moisture focus their duration intensity. The results reveal that choice scale has larger effects rainfall-dominated regimes compared snowmelt-driven basins, especially when fluxes are longer than 9 months. In all analyzed, strongest relationships (Spearman rank correlation values over 0.7) were obtained using aggregations compute 9–12 months variables, excepting aquifer storage basins. Finally, show trajectories Precipitation (SPI), Soil Moisture (SSMI) may change drastically selection scale. Overall, this highlights need caution selecting standardized indices associated scales, since event characterizations, monitoring analyses.
Language: Английский
Citations
0
Published: Jan. 16, 2025
Abstract. Hydrological drought is one of the main hydroclimatic hazards worldwide, affecting water availability, ecosystems and socioeconomic activities. This phenomenon commonly characterized by Standardized Streamflow Index (SSI), which widely used because its straightforward formulation calculation. Nevertheless, there limited understanding what SSI actually reveals about how climate anomalies propagate through terrestrial cycle. To find possible explanations, we implemented SUMMA hydrological model coupled with mizuRoute routing in six hydroclimatically different case study basins located on western slopes extratropical Andes, examined correlations between (computed from models for 1, 3 6-month time scales) potential explanatory variables – including precipitation simulated catchment-scale storages aggregated at scales. Additionally, analyzed impacts adopting scales propagation analyses specific events meteorological to soil moisture focus their duration intensity. The results reveal that choice scale has larger effects rainfall-dominated regimes compared snowmelt-driven basins, especially when fluxes are longer than 9 months. In all analyzed, strongest relationships (Spearman rank correlation values over 0.7) were obtained using aggregations compute 9–12 months variables, excepting aquifer storage basins. Finally, show trajectories Precipitation (SPI), Soil Moisture (SSMI) may change drastically selection scale. Overall, this highlights need caution selecting standardized indices associated scales, since event characterizations, monitoring analyses.
Language: Английский
Citations
0
Discover Agriculture, Journal Year: 2025, Volume and Issue: 3(1)
Published: April 13, 2025
Language: Английский
Citations
0
Agricultural Water Management, Journal Year: 2025, Volume and Issue: 313, P. 109479 - 109479
Published: April 19, 2025
Language: Английский
Citations
0
Hydrology and earth system sciences, Journal Year: 2025, Volume and Issue: 29(8), P. 1981 - 2002
Published: April 22, 2025
Abstract. Hydrological drought is one of the main hydroclimatic hazards worldwide, affecting water availability, ecosystems, and socioeconomic activities. This phenomenon commonly characterized by Standardized Streamflow Index (SSI), which widely used because its straightforward formulation calculation. Nevertheless, there limited understanding what SSI actually reveals about how climate anomalies propagate through terrestrial cycle. To find possible explanations, we implemented Structure for Unifying Multiple Modeling Alternatives (SUMMA) coupled with mizuRoute routing model in six hydroclimatically different case study basins located on western slopes extratropical Andes examined correlations between (computed from models 1-, 3-, 6-month timescales) potential explanatory variables – including precipitation simulated catchment-scale storages aggregated at timescales. Additionally, analyzed impacts adopting timescales propagation analyses specific events meteorological to soil moisture hydrological focus their duration intensity. The results reveal that choice timescale has larger effects rainfall-dominated regimes compared snowmelt-driven basins, especially when fluxes are longer than 9 months. In all analyzed, strongest relationships (Spearman rank correlation values over 0.7) were obtained using compute 9–12 months variables, excepting aquifer storage basins. Finally, show trajectories Precipitation (SPI), Soil Moisture (SSMI), may change drastically selection timescale. Overall, this highlights need caution selecting standardized indices associated timescales, since event characterizations, monitoring, analyses.
Language: Английский
Citations
0
Hydrology, Journal Year: 2024, Volume and Issue: 11(3), P. 34 - 34
Published: Feb. 28, 2024
This study focuses on the Sirba River Basin (SRB), a transboundary West African catchment of 38,950 km2 shared by Burkina Faso and Niger, which contributes to flooding downstream in Niamey (Niger). The uses HEC-HMS hydrological model explore dynamics daily rainfall–runoff relationship over period 2006–2020. is calibrated using observed rainfall at 13 meteorological stations within river basin discharges Garbey Kourou hydrometric station outlet. Two types simulation are compared: (i) continuous (CS) 2006–2020 (ii) an event-based (ES) selected major flood events 2010, 2012, 2013, 2015 2020. results showed satisfactory performance under both modeling schemes (R2 = 0.84–0.87 for CS R2 0.94–0.98 ES), with superior ES CS. Also, significant differences distribution parameters percent impervious attenuation wave factor were observed. A sensitivity analysis revealed that curve number, initial abstraction, lag time routing factors influential outputs. therefore underscores model’s robustness crucial insights control management infrastructure planning SRB.
Language: Английский
Citations
3
Resources, Journal Year: 2024, Volume and Issue: 13(6), P. 71 - 71
Published: May 29, 2024
In West Africa, the construction of small earth dams is common against water scarcity. Burkina Faso, an inland country in home to 1001 that serve agricultural and pastoral needs. These embankments are predominantly made compacted laterite, a cost-effective material abundant over 2/3 country. However, these degrade time, hindering their functionality. This study aims establish catalog typical degradation occurring on which virtually non-existent region while identifying analyzing potential causes. The uses diagnostic analysis followed up with technical visits representative sample 24 Centre Centre-South regions as basis for future studies. results reveal were constructed between 1965 2018, capacities ranging from 150,000 4,740,000 m3. 33% have undergone total failure, likely attributed factors such internal erosion, pore overpressures, settlement, deformation. Although 67% remain functional, structural integrity could be improved. Erosion observed riprap indicates vulnerability during high flood periods. Additionally, absence proper maintenance, shown by vegetation development weakening embankments, contributes deterioration. also suggests variability techniques lateritic properties across time may further exacerbate degradation. findings inform infrastructure improvements policy sustainable resource management Faso similar regions.
Language: Английский
Citations
3