Hydrological Research Letters https://validator.w3.org/feed/docs/rss2.html Significant reduction of river discharge in the mountainous basins of Uzbekistan over the last decades Assessing agricultural drought vulnerability: exploring historical drought hotspots in Indonesia through high-resolution satellite imagery Seasonal variation in end-members and discharge mechanisms of a caldera spring with multiple groundwater flow systems: insights from multi-tracer analysis in the Aso Caldera, Japan Surface energy balance response to the 2014–2016 El Niño at Huayna‑Potosí Glacier in the Tropical Andes A municipality-level comparison of agricultural reservoirs in Japan considering climate change and population decline Testing and improving a distributed rainfall-runoff model using slope surface flow as a new observation metric Analysis of hydraulic and hydrological factors under the saltwater intrusion and projections of their future frequency in the Ishikari River Isotopic shift in streamflow relative to precipitation over 13 years: fractionation versus selection effects Exploring the predictability of using crowdsourced observations in statistical postprocessing of NWP based precipitation nowcasts by machine learning Numerical analysis of infiltration dynamics in layered soil profiles with earthquake-induced fissures: a case study from the Kumamoto earthquake, western Japan Proposal of digital twin approach in cooperation with flood analysis for small and medium rivers Temporal dynamics and threshold behaviors of suspended sediment transport in the Abukuma River, Japan Comparative analysis of flash and traditional droughts in the Kashkadarya region, Uzbekistan Reproducibility of SPI-based drought indices and recent wetting trends over Japan using JRA-3Q River water temperature variability: classification, diurnal change, and precipitation impacts in Nagara River tributaries Numerical study of effects of soil pipes on the constant-head well permeameter test Kushiro wetland climate change impact assessment using a high-resolution climate change projection model Climate change influences the intensity and frequency of Cyclone Ditwah (2025) Historical water temperature change in Japan over the past several decades Scale correction, verification, and warming attribution of summer rainfall extremes over Japan for the d4PDF climate ensemble Long-term trend analysis of equilibrium water temperature in Japan over the recent decades Impacts of long lead-time flood forecasting on disaster response and society: insights from Nagano, Japan High-order Average Component Acceleration method with longitudinal distribution of the average component term for fast flood flow simulations under various downstream conditions Cost-benefit analysis of adaptation measures to reduce flood inundation damage in rivers in Toyama Prefecture, Japan Urbanization impacts on operational efforts of agricultural water infrastructure The effect of flow discharge alteration on the development of the alternate bar Improvement of simulating gross primary production and evapotranspiration in the land surface model based on parameter calibration Quantitative Precipitation Estimation for an observed case of bimodal raindrop size distributions Unique drought tendency of an understudied region in the Mekong Delta, Vietnam Editors Boron isotope evolution during burial diagenesis: integrating a Rayleigh model with hot spring observations Comparative analysis of dredging and paddy field dams for flood mitigation under future changes in the Upper Citarum, Indonesia Justifying the application of deep learning on detecting weather fronts for coarse-scale General Circulation Models Evaluating future warming impacts on probable maximum precipitation using DAD analysis: insights from 5-km d4PDF ensembles in Kyushu Annual patterns of mountain runoff and its long-term trends in Japan based on dam inflow data Evaluating the impact of site-specific bias correction of GCM on projection of future soil temperature and moisture: a case study in plain and mountainous regions of Gifu Prefecture, Japan Reducing soils serve as a legacy source of dissolved iron to northern Hokkaido rivers during the autumn low-water season High-resolution modeling of pluvial flooding throughout a metropolitan area utilizing open-source data and a supercomputer Using a water quality index to evaluate spatial and temporal patterns of surface water quality, a case study in the Greater Houston Area, USA Multi-case study on VIL Nowcast enhanced with conditional bifurcation using vertical wind Assessing synoptic-scale variability in isotope-enabled climate models: challenges for water vapor isotopes over the Southern Ocean A proposal for bidirectional long-short-term memory rainfall-runoff predictive modeling (BiLSTM-RPM) with a sliding window generator (SWG) technique for an urban watershed Enhancement of disaster preparedness with social capital and community capacity: A perspective from a comparative case study of rural communities in Kochi, Japan A numerical study on internal waves induced by a typhoon around a continental shelf Quantitative method to distinguish flood and flash flood as disasters Comparative study of approaches to bathymetry detection in Nasser/Nubia Lake using multispectral SPOT-6 satellite imagery Comment on “Effect of uncertainty in temperature and precipitation inputs and spatial resolution on the crop model” by Kenichi Tatsumi, Yosuke Yamashiki and Kaoru Takara Estimation of aquatic plant height in the southern basin of Lake Biwa using an acoustic doppler current profiler Towards reanalysis of human-flood interactions: case study in the United States Development of a reliability evaluation system for dissolved oxygen monitoring data using machine learning