Science topics: GeoscienceHydrology
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Hydrology - Science topic

Hydrology is the study of the movement, distribution, and quality of water on Earth and other planets, including the hydrologic cycle, water resources and environmental watershed sustainability.
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Publications related to Hydrology (10,000)
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Historically, the surface water holding structures have been a primary water source for the people of Madurai, a South-Indian city in Tamil Nadu, India. Since the 1990s, the city has been experiencing rapid urbanization. The encroachment issues have started degrading the river Vaigai and system of water holding tanks called the Vandiyur tank cascad...
Article
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The rainy season over southern China (SC) begins with the onset of the South China Sea monsoon around mid-May. We demonstrate here that the SC precipitation exhibits a notable drying (wetting) trend prior to (after) the monsoon onset, leading to a more abrupt thus amplified hydrological transition over SC in early summer. The contrasting precipitat...
Cover Page
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Remote Sensing is launching a special issue entitled “Artificial Intelligence Applications in Remotely Sensed Hydrologic and Water Systems.” This issue aims to promote state-of-the-art data-driven and machine learning techniques such as deep learning, ensemble learning, and reinforcement learning, using remote sensing in water research spanning hyd...
Article
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Water sustenance in streams and rivers depends on the integrity of the catchment (watershed), as vegetation helps in retarding the velocity of water by allowing impoundment and recharging of groundwater through infiltration. Forests with native vegetation act as a sponge by retaining and regulating water transfer between land and the atmosphere. He...
Article
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Hydrological model parameters are usually calibrated based on the performance of the daily river discharge data recorded at the basin outlet. In the unconvetional approach, satellite-based remote sensing data, which is open to everyone, is utilized in addition to the discharge data. The latter approach is aslo called spatial calibration in hydrolog...
Article
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Ecosystem services are broadly categorised as (i) provisioning services are those ecosystem services representing the contributions to benefits that are extracted or harvested from ecosystems, (ii) regulating and maintenance services are those ecosystem services resulting from the ability of ecosystems to regulate biological processes and to influe...
Article
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The hydrodynamics in the diverging area become complicated because of the basin hydrological conditions, making the distribution of antibiotics largely uncertain and thus bringing uncertain ecological risks of antibiotics. Through field sampling, experiments and numerical simulations, the distribution of antibiotics, its responses to hydrological c...
Book
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This textbook provides a comprehensive treatment of irrigation engineering for advanced undergraduates and graduate students. It does not require a background in calculus, hydrology, or hydraulics, offering a one-stop overview of the entire field of study. It includes everything a student of irrigation engineering needs to know: concepts of climate...
Article
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Striking networks of livestock tracks are commonplace in hilly rangelands throughout the world. Formed largely through biogenic processes, they transform micro-topography, soil properties, vegetation distribution, and forage behaviors of livestock, and have significant implications to hydrological and biogeochemical processes and livestock forage e...
Article
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High sediment flux in large rivers provide sufficient dilution to the heavy metals’ concentration. However, sediment starvation caused by hydrological engineering in recent decades has been reported worldwide. Thus, a study is necessary on the influences of recent declining sediment flux on heavy metal pollution change in the suspended sediments. I...
Article
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Arctic charr is one of the fish species most sensitive to climate change but studies on their freshwater habitat preferences are limited, especially in the fluvial environment. Machine learning methods offer automatic and objective models for ecohydrological processes based on observed data. However, i) the number of ecological records is often muc...
Article
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Around 36,000 km³ of freshwater flows through rivers and estuarine ecosystems and enter the world’s coastal fishing regions every year. The flow of freshwater and sediments creates regional changes in coastal circulation, stimulates marine productivity and helps define the hydrologic properties of estuarine and oceanic waters. These processes can a...
Article
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The hydroclimatology and hydrometeorology of flooding over the Third Pole region is poorly understood, despite its societal and environmental significance. Here we examine extreme rainfall and flooding over the eastern Tibetan Plateau (TP) based on empirical analyses of long‐term, in‐situ rainfall and stream gaging observations as well as the ECMWF...
Article
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Determining the flow regime of non‐perennial rivers is critical in hydrology. In this study, we developed a new approach using CubeSat imagery to detect streamflow presence using differences in surface reflectance for areas within and outside of a river reach. We calibrated the approach with streamflow records in the Hassayampa River of Arizona ove...
Article
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Structural hydrologic connections, formed by the coaction of tectonic and climatic processes, facilitate the transfer of matter across Earth's surface. Large‐scale analysis of hillslope connectivity controls is lacking, thus limiting our understanding of the drivers of extremes, like floods and landslides, and benefits, like wetlands. Here, we mode...
Article
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At a time, when the five riparian countries have renewed consultation with each other about the future of the Caspian Sea, it is appropriate to propose a state of the art of the potential natural threats to the regional environment. We present a critical review of geological, meteorological–climatological and hydrological hazards and disasters illu...
Article
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The hydrological exchange process between Poyang Lake (PYL), the largest freshwater lake in China, and the Yangtze River leads to drastic changes in water area (WA) and water level (WL), as well as apparent fluctuations in lake nutrients, algal organisms, and trophic level index. This study investigated the current status of the PYL water environme...
Article
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Change detection between images of pre-flood and flooding periods is a critical process for flood mapping using satellite images. Flood mapping from SAR images is based on backscattering coefficient differences. The change rules of the backscattering coefficient with different flooding depths of ground objects are essential prior knowledge for floo...
Article
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Large-scale reservoirs exhibit complex hydrological conditions and exert a significant alteration on river flowing. Although dissolved organic matter (DOM) is noted to involve in biogeochemical processes, the variation mechanism of DOM chemistry across a large-scale reservoir is not well assessed. Here, we investigated four tributaries across diffe...
Poster
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https://rigeo.cprm.gov.br/jspui/handle/doc/22817 - Localizados no centro sul do estado de São Paulo (Figura 1), os municípios de Botucatu (149.718 habitantes), São Manuel (41.287 habitantes) e Pratânia (5.371habitantes) totalizam 191.005 habitantes estimados para 2021 segundo o IBGE. Apenas o município de Pratânia possui o seu território inteiro na...
Article
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Groundwater drought response to meteorological forcing depends on initial hydrological conditions. This makes it difficult to characterise groundwater droughts and identify the drought vulnerability of aquifers. The objective is to increase the understanding of groundwater memory and response to meteorological forcing in lowland post-glacial enviro...
Preprint
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Gridded global horizontal irradiance (GHI) databases are fundamental for analysing solar energy applications' technical and economic aspects, particularly photovoltaic applications. Today, there exist numerous gridded GHI databases whose quality has been thoroughly validated against ground-based irradiance measurements. Nonetheless, databases that...
Article
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Obtaining accurate near-real-time precipitation data and merging multiple precipitation estimates require sufficient in-situ rain gauge networks. The triple collocation (TC) approach is a novel error assessment method that does not require rain gauge data and provides reasonable precipitation estimates by merging data; this study assesses the TC ap...
Article
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Bangladesh is known as a deltaic plain at the confluence of the Ganges, Brahmaputra and Meghna River Basins (GBM) and their tributaries. Gorai is one of the tributaries of them. The purpose of this research was to identify socioeconomic impacts of hydrological change on people of Kumarkhali, Kushtia. It was hypothesized that the socioeconomic impac...
Article
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Access to detailed data sets which can enable detailed hydraulic modelling of the river around a bridge structure is not always possible and may require extensive surveys. It is important for infrastructure managers to decide whether additional data availability that may increase the accuracy of scour risk assessments may be worthwhile. In this reg...
Article
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River flow modeling plays a leading role in the management of water resources and ensuring sustainability. The complex nature of hydrological systems and the difficulty in the application process have led researchers to seek more instantaneous methods for flow predictions. Therefore, with the development of artificial intelligence-based techniques,...
Article
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Physically based hydrological models such as the Joint UK Land Environment Simulator (JULES) are increasingly used for hydrological assessments because of their state-of-the-art representation of physical processes and versatility. Generating parameter sets for a larger variety of land cover types may be an appropriate approach to simplify setting...
Article
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Plain Language Summary Soil moisture (SM) widely varies in space and time. This variability critically influences freshwater availability, agriculture, ecosystem dynamics, climate and land‐atmosphere interactions, and it can also trigger hazards such as droughts, floods, landslides, and aggravate wildfires. Limited SM observational data constrained...
Article
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Risk management has reduced vulnerability to floods and droughts globally1,2, yet their impacts are still increasing³. An improved understanding of the causes of changing impacts is therefore needed, but has been hampered by a lack of empirical data4,5. On the basis of a global dataset of 45 pairs of events that occurred within the same area, we sh...
Article
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Knowledge about the distribution and dynamics of seasonal snow cover (SSC) is of high importance for climate studies, hydrology or hazards assessment. SSC varies considerably across the Hindu Kush Himalaya both in space and time. Previous studies focused on regional investigations or the influence of snow melt on the local hydrological system. Here...
Article
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As the social economy is further developed, there have been increasingly severe ecological and environmental issues. For instance, rivers located in mountainous areas are often encountered with the issue of zero flow. The ecological base flow was put forward to ensure the continuous flow of rivers, to realize the minimum ecological function, and to...
Technical Report
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Project objectives and research questions The overall aim of this project was to compile and assess the key evidence required to improve our understanding of climate change impacts on the water quality of Scottish standing waters at national, regional and local scales. The project focussed on the interactions between climate change, the drivers...
Presentation
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Forecasting hydrologic extremes across a range of timescales is critical for minimizing the socioeconomic costs of these events. Recognizing the remarkedly differences in the frequency spectrum between the response and the predictor variables in a modeling system, e.g., rainfall and streamflow in a hydrological system, we propose a wavelet-based va...
Article
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High-intensity urban development and economic exploitation have led to the fragmentation and isolation of regional habitat patches, and biodiversity is under serious threat. Scientific identification and effective optimization of ecological networks are essential for maintaining and restoring regional ecosystem connectivity and guiding sustainable...
Article
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Upwelling may generate unique hydrological and environmental heterogeneity, leading to enhanced diffusion to reshape microbial communities. However, it remains largely unknown how different microbial taxa respond to highly complex and dynamic upwelling systems. In the present study, geographic patterns and co-occurrence network of different microbi...
Preprint
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The flow variability, sediment influx and sediment transport attribute to the morphological changes of any river. The dynamic nature of the Koshi River results in frequent morphological changes. After reaching Terai, the flood plain of the Koshi becomes highly braided and usually after every peak events the braided pattern and flow paths changes an...
Article
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Soil moisture is a crucial component of land–atmosphere interaction systems. It has a decisive effect on evapotranspiration and photosynthesis, which then notably impacts the land surface water cycle, energy transfer, and material exchange. Thus, soil moisture is usually treated as an indispensable parameter in studies that focus on drought monitor...
Article
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The Approximate Bayesian Computation (ABC) provides a powerful tool for signature-domain calibration of hydrological models where hydrological signatures are incorporated into calibration objectives. However, the efficiency of ABC relies strongly on the use of a vector of sufficient signatures that can fully represent relevant information in raw da...
Conference Paper
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The number of studies based on the integrated flood modelling at the basin scale, meaning that hydrological and hydrodynamic flood processes are described entirely within the2D Shallow Water Equations(2D-SWEs), is growing quickly. However, there is a need to provide further evidence about the reliability of this approach in real-world case studies,...
Article
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Many small-scale experimental, field, and empirical studies on bridge scour are available, however a large-scale study on local scour at a complex pier with wide variation in design parameters is still lacking. In this study, a country-wide assessment of local scour at complex piers of 239 bridges in Bangladesh is made. The hydrologic, hydraulic, a...
Article
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Hydrological modeling in the Third Pole remains challenging due to the complex topography and scarcity of in-situ precipitation observations. In this study, we assessed five satellite precipitation products (SPPs) including TRMM3B42, PERSIANN-CDR, GPM-IMERG, CMORPH, and GSMaP, and simulated daily streamflow in the Yarlung Zangbo River Basin (YZRB)...
Article
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The study provides estimates of summertime evaporation over a glacial lake located in the Schirmacher oasis, Dronning Maud Land, East Antarctica. Lake Zub (alternately named Lake Priyadarshini and referred to throughout as Lake Zub/Priyadarshini) is the second-largest lake in the oasis, and its maximum depth is 6 m. The lake is also among the warme...
Article
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Icing/Aufeis processes are a typical feature of permafrost hydrology in mountainous regions. Regional databases of Aufeis have been compiled since the 2010. In this study, we attempted to create an initial Aufeis database for the Qinghai-Tibet Plateau (QTP) to evaluate the patterns of the icing processes in the arid and high mountain regions at low...
Article
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In this paper, the Innovative Trend Methodology (ITM) and their inspired approaches, i.e., Double (D-ITM) and Triple (T-ITM), were combined with Hilbert Huang transform (HHT) time frequency-based method. The new hybrid methods (i.e., ITM-HHT, D-ITM-HHT, and T-ITM-HHT) were proposed and compared to the DWT-based methods in order to recommend the bes...
Article
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No-till (NT) is a sustainable alternative to conventional-till (CT), however, the impacts of NT and its duration on the depth distribution of soil organic carbon (SOC), physical and hydrological parameters are less studied. Therefore, the objective of this study was to evaluate the changes in soil hydro-physical properties and X-ray computed tomogr...
Article
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Despite the widespread use of integrated hydrology models in a variety of applications, consideration of multicomponent reactive transport is still not common. The implementation of these processes requires coupling transport at the surface‐subsurface interface and efficient solution of the non‐linear geochemical model that is consistent with the i...
Article
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Study region arid and semi–arid regions of Northwest China Study focus Precipitable water vapor (PW) is the medium for energy and water exchange, and supplies moisture for precipitation. Based on meteorological data and PW data from observation and six reanalysis products, the climate shift in the arid and semi–arid regions of Northwest China (ASR...
Article
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The phases of long-lasting (more than 10-15 years) increased and decreased water flow, water temperature and heat flux values in the Northern Dvina River and the Pechora River were studied for the observation period from the 1930s to 2020. To distinguish between different phases, statistical homogeneity tests and normalized cumulative deviation cur...
Article
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Study region Central Europe Study focus Precipitation fields from reanalyses have been widely used for hydrological applications, meteorological extreme analyses or climatological research. Modern reanalyses provide all characteristics in regular grids with high resolutions and thus can substitute for gridded in situ, radar and satellite observati...
Article
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Information on the relationship between rainfall intensity, duration and accumulation frequency or return period (IDF) is commonly utilized in the design and management of urban drainage systems. Can Tho City, located in the Vietnamese Mekong Delta, is a city which has recently invested heavily in upgrading its stormwater drainage systems in the ho...
Article
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Stream channel erosion, enlargement, and habitat degradation are ubiquitous in urban watersheds with conventional stormwater management that increase channel-eroding flows relative to undeveloped watersheds. Hydrologic-based restoration aims to discharge a more natural flow regime via stormwater management interventions. Whether such interventions...
Article
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The modeling and forecasting of short-duration and high-intensity floods are of importance for flood defenses and adaptations. One of the conventional ways to model or forecast such events is to utilize hydrological models driven by meteorological and hydrological station data. However, this suffers from complicated parameter specification and larg...
Article
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Water regime changes play a critical role in the structure and function of watershed ecosystems. However, most previous studies focused only on static fixed-point quantitative change at a given time, ignoring the hydrological spatial distribution states of wetting and drying and lacking dynamic indicators for characterization. Here, we constructed...
Article
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Study region Ethiopia and Upper Blue Nile Basin. Study focus Estimating design hydrograph characteristics (e.g. flood peak discharge, volume and duration) is a crucial topic in hydrology and this is particularly challenging in data scarce regions. In recent years, significant innovations in hydrological modeling were introduced, allowing for more...
Article
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Study region The Yellow River Basin plays a crucial role in China's socio-economic development and ecological security. Study focus The growing trend of water consumption driven by anthropogenic activities has posed an increasing number of challenges for the sustainable development of the Yellow River basin. Water demand prediction plays a central...