280 Hits in 9.8 sec

Investigation of Flash Floods on early basis: A Factual Comprehensive review

Talha Ahmed Khan, Muhammad Alam, Zeeshan Shahid, M.S Mazliham
2020 IEEE Access  
Ultimate extreme flash floods can be acknowledged as a main reason of high casualties and infrastructure loss in many countries like Pakistan,  ...  Alleviation of flash floods and upstream levels of river must be forecasted in order to announce the warning and precautions to the villagers.  ...  Glaciers and heavy precipitation in monsoon season increase the upstream level of dams, lakes and rivers to the critical levels that causes the floods.  ... 
doi:10.1109/access.2020.2967496 fatcat:4d4dfn64frhn5mhrnpv6mcfm5q

Design of an automatic hydro-meteorological observation network for real-time flood warning system: a case study of Vu Gia-Thu Bon river basin, Vietnam

Liem D. Nguyen, Hong T. Nguyen, Phuong D. N. Dang, Trung Q. Duong, Loi K. Nguyen
2021 Journal of Hydroinformatics  
A total of 20 meteorological stations and five hydrological stations have been built in VGTB river basin.  ...  This paper presents an interdisciplinary approach, along with Vietnam's legal frameworks, to design an automatic hydro-meteorological (HM) observation network for a real-time flood warning system in Vu  ...  INTRODUCTION HM variables such as rainfall, air temperature, air humidity, solar radiation, wind speed, water discharge, and water level are the key inputs in flood forecasting and warning.  ... 
doi:10.2166/hydro.2021.124 fatcat:pvdab4fcdzgunbbxbgn37etyp4

Toward Urban Water Security: Broadening the Use of Machine Learning Methods for Mitigating Urban Water Hazards

Melissa R. Allen-Dumas, Haowen Xu, Kuldeep R. Kurte, Deeksha Rastogi
2021 Frontiers in Water  
We also describe a vision that integrates these machine learning applications into a comprehensive watershed-to-community planning workflow for smart-cities management of urban water resources.  ...  In this paper, we review ways in which advanced machine learning techniques have been applied to specific aspects of the hydrological cycle and discuss their potential applications for addressing challenges  ...  In fact, river floods are generally defined in hydrological terms by their water level or amount of discharge.  ... 
doi:10.3389/frwa.2020.562304 fatcat:4g4x5qsljva63fzfibqyjhsdsi

Hydrological real-time modelling in the Zambezi river basin using satellite-based soil moisture and rainfall data

P. Meier, A. Frömelt, W. Kinzelbach
2011 Hydrology and Earth System Sciences  
A forecasting framework for the prediction of discharges is developed and applied to three different sub-basins of the Zambezi River Basin.  ...  Reliable real-time forecasts of the discharge can provide valuable information for the management of a river basin system.  ...  The discharge data of the three rivers were provided by the Department of Water Affairs, Lusaka, Zambia. This research is funded by the Swiss National Science Foundation under project K-21K1-120266.  ... 
doi:10.5194/hess-15-999-2011 fatcat:ruew5v67m5fj5mlwiaofylk73i

Seismic observations, numerical modeling, and geomorphic analysis of a glacier lake outburst flood in the Himalayas

J M Maurer, J M Schaefer, J B Russell, S Rupper, N Wangdi, A E Putnam, N Young
2020 Science Advances  
Our analysis highlights potential benefits of using real-time seismic monitoring to improve early warning systems.  ...  We use the seismic observations along with eyewitness reports and a downstream gauge station to constrain a numerical flood model and then assess geomorphic change and current state of the unstable lakes  ...  We would also like to acknowledge the National Center for Hydrology and Meteorology, Royal Government of Bhutan for providing field logistics and support for this study.  ... 
doi:10.1126/sciadv.aba3645 pmid:32938673 pmcid:PMC7494340 fatcat:v6fvj7ji3bcyxiktrp5t7e4fym

Prior Recognition of Flash Floods: Concrete Optimal Neural Network Configuration Analysis for Multi-Resolution Sensing

Talha Ahmed Khan, Muhammad Alam, Zeeshan Shahid, M.S Mazliham
2020 IEEE Access  
Glaciers and severe rainfall in monsoon season boost the upstream level of dams, lakes and rivers to the dangerous levels that causes floods.  ...  A competent early warning system was strongly needed for forecasting any type of natural hazards like tsunami, flash floods and seismic events.  ... 
doi:10.1109/access.2020.3038812 fatcat:tdkj4ecy75deplagf26k4pfvp4

Application of Remote Sensing Data to Constrain Operational Rainfall-Driven Flood Forecasting: A Review

Yuan Li, Stefania Grimaldi, Jeffrey Walker, Valentijn Pauwels
2016 Remote Sensing  
Flood forecasting systems, which simulate runoff generation and propagation processes, provide information to support flood warning delivery and emergency response.  ...  The rapid development of hydrologic remote sensing offers a potential to provide additional/alternative forcing and constraint to facilitate timely and reliable forecasts.  ...  Acknowledgments: This study is financially supported by the Bushfires and Natural Hazards CRC  ... 
doi:10.3390/rs8060456 fatcat:cbxlmrs4mjejha7fcsotmwsi3m

Snowpack and runoff generation using AMSR-E passive microwave observations in the Upper Helmand Watershed, Afghanistan

Carrie Vuyovich, Jennifer M. Jacobs
2011 Remote Sensing of Environment  
Passive microwave estimates of snow water equivalent (SWE) were examined to determine their usefulness for evaluating water resources in the remote Upper Helmand Watershed, central Afghanistan.  ...  The timing and magnitude of SWE values from the snow model and the passive microwave observations were sometimes similar with a correlation of 0.53 and accuracy between 55 and 62%.  ...  Acknowledgments This work was supported by the US Army Corps of Engineers and the U.S. Army Engineer Research and Development Center's Cold Regions Research and Engineering Laboratory.  ... 
doi:10.1016/j.rse.2011.07.014 fatcat:5egn6tfoqrdl3ejl657euunnou

Flood Forecasting GIS Water-Flow Visualization Enhancement (WaVE): A Case Study

Timothy R. Petty, Nawajish Noman, Deng Ding, John B. Gongwer
2016 Journal of Geographic Information System  
WaVE enables users to: 1) dynamically generate on-the-fly, highly granular and interactive geovisual real-time and predictive flood maps that can be scaled down to show discharge, inundation, water velocity  ...  Riverine flood event situation awareness and emergency management decision support systems require accurate and scalable geoanalytic data at the local level.  ...  of water elevation levels in reservoirs to minimize downstream flooding and maximize storage [2] .  ... 
doi:10.4236/jgis.2016.86055 fatcat:2mtk73hcs5dcbdijmzkv5aj45u

Informing a hydrological model of the Ogooué with multi-mission remote sensing data

Cecile M. M. Kittel, Karina Nielsen, Christian Tøttrup, Peter Bauer-Gottwein
2018 Hydrology and Earth System Sciences  
In this study, we applied a multi-mission approach to force, calibrate and validate a hydrological model of the ungauged Ogooué river basin in Africa with publicly available and free remote sensing observations  ...  The use of new satellite missions, including Sentinel-1 and CryoSat-2, increased the spatial characterization of river stage.  ...  Daily historical in situ observations of discharge in the river basin recorded by the Office de la Recherche Scientifique et Technique Outre-Mer (ORSTOM) and the Direction Générale des Ressources Hydrauliques  ... 
doi:10.5194/hess-22-1453-2018 fatcat:g65xqa6yuvakppcx46j4ubgntm

Variational assimilation of streamflow data in distributed flood forecasting

Giulia Ercolani, Fabio Castelli
2017 Water Resources Research  
The system adopts a mixed variational-Monte Carlo approach, and is here tested with the hydrologic model MOBIDIC, that is part of the operational flood forecasting chain for Arno river in central Italy  ...  Specific performances depend on location and event, but in the majority of cases the error on predicted peak flow is reduced of more than 50% with a lead time of around 10 h.  ...  In particular, the data sets employed in the analysis have been provided by the Hydrologic Service of Tuscany Region (Servizio Idrologico Regionale, Regione Toscana), and the work has been founded by Tuscany  ... 
doi:10.1002/2016wr019208 fatcat:wigbiuorubdh5a2jchscu22ola

Combining satellite radar altimetry, SAR surface soil moisture and GRACE total storage changes for model calibration and validation in a large ungauged catchment

C. Milzow, P. E. Krogh, P. Bauer-Gottwein
2010 Hydrology and Earth System Sciences Discussions  
measurements onboard the Envisat satellite; (ii) radar altimetry measurements by Envisat providing river stages in the tributaries of the Okavango catchment, down to a minimum river width of about one  ...  Combining satellite radar altimetry, SAR surface soil moisture and GRACE total storage changes for model calibration and validation in a large ungauged catchment.  ...  We acknowledge the Department of Water Affairs of the government of Namibia and the Department of Water Affairs of the government of Botswana for providing river stage and discharge data.  ... 
doi:10.5194/hessd-7-9123-2010 fatcat:4umc6hc4wjep7mcntorq5y4iqu

Development and evaluation of flood forecasting models for forecast-based financing using a novel model suitability matrix

Jenny Sjåstad Hagen, Andrew Cutler, Patricia Trambauer, Albrecht Weerts, Pablo Suarez, Dimitri Solomatine
2020 Progress in Disaster Science  
Forecast-based financing is a financial mechanism that facilitates humanitarian actions prior to anticipated floods by triggering release of pre-allocated funds based on exceedance of flood forecast thresholds  ...  This paper presents a novel model suitability matrix that embeds application-specific needs and contingencies at local level on a pilot project of forecast-based financing.  ...  The authors would also like to thank Togo Red Cross, Nangbéto Hydropower Dam, Specialized Environmental Modeling and Agence Nationale de la Protection Civile du Togo for sharing of data and information  ... 
doi:10.1016/j.pdisas.2020.100076 fatcat:xc5j5uvtjjfyhgf6i47bewlvtm

Hydrological Aspects of Weather Prediction and Flood Warnings: Report of the Ninth Prospectus Development Team of the U.S. Weather Research Program

K. K. Droegemeier, J. D. Smith, S. Businger, C. Doswell, J. Doyle, C. Duffy, E. Foufoula-Georgiou, T. Graziano, L. D. James, V. Krajewski, M. LeMone, D. Lettenmaier (+6 others)
2000 Bulletin of The American Meteorological Society - (BAMS)  
The authors present herein a set of recommendations for advancing our understanding of floods via the creation of natural laboratories situated in a variety of local meteorological and hydrological settings  ...  to flooding that exist between meteorological and hydrological processes and models; (b) innovative use of operational radars, research radars, satellites, and rain gauges to provide detailed spatial characterizations  ...  The authors gratefully acknowledge the leadership and support of R. Carbone in his role as USWRP lead scientist during the tenure of PDT 9, and to R.  ... 
doi:10.1175/1520-0477(2000)081<2665:haowpa>;2 fatcat:6f6c5k45onajvfagezpmk5srru

Combining satellite radar altimetry, SAR surface soil moisture and GRACE total storage changes for hydrological model calibration in a large poorly gauged catchment

C. Milzow, P. E. Krogh, P. Bauer-Gottwein
2011 Hydrology and Earth System Sciences  
We acknowledge the Department of Water Affairs of the government of Namibia and the Department of Water Affairs of the government of Botswana for providing river stage and discharge data.  ...  This work was funded by the Swiss National Science Foundation (PBEZP2-127760) and hosted at the Department of Environmental Engineering, Technical University of Denmark. Edited by: N. Romano  ...  The travel time of a radar signal between a satellite and a water surface is related to the water level elevation.  ... 
doi:10.5194/hess-15-1729-2011 fatcat:4q6456xh2bcivochjr4baejhte
« Previous Showing results 1 — 15 out of 280 results