ENSEMBLE FLOOD INUNDATION FORECASTING: A CASE STUDY IN THE TIDAL DELAWARE RIVER
|
|
- Eunice Carson
- 5 years ago
- Views:
Transcription
1 ENSEMBLE FLOOD INUNDATION FORECASTING: A CASE STUDY IN THE TIDAL DELAWARE RIVER Michael Gomez & Alfonso Mejia Civil and Environmental Engineering Pennsylvania State University 10/12/2017 Mid-Atlantic Water Resources Conference National Conservation Training Center, W.Va Oct 12-13, 2017
2 Floods are among the deadliest natural disasters but alert systems are ineffective Sources: 2
3 Operational flood forecasting does not show spatial distribution of floods Numerical Weather Prediction model Hydrological model Precipitation and temperature forecast Source: 3
4 Two types of flood inundation forecasting: Inland and coastal Source: Source: 4
5 There is a gap between inland and coastal operational flood forecasts 5
6 My objective with this research is Improve flood inundation forecasting by using ensemble hydrometeorological forecasts and statistical postprocessing with a coupled hydrologic/hydraulic model 6
7 These are some questions that I address with this research 1. How skillful are medium-range flood forecast maps? 2. Are weather ensembles able to enhance, over deterministic weather predictions, the mapping of flood inundation forecasts? 3. Can statistical postprocessing improve flood inundation forecast maps? 7
8 RHEPS is coupled to a 1-D hydraulic model to produce flood inundation maps Precipitation and temperature medium-range forecasts (GEFSRv2) Hydrometeorological forecasts Deterministic (control member) Observed streamflow and tide data Flood Inundation maps Reference Hydrological model (HL- RDHM) Hydraulic model (HEC-RAS) Deterministic forecast Quantile Regression (QR) Postprocessor Postprocessed forecast maps Probabilistic (11- members) Raw ensemble forecast Verification strategy 8
9 The Delaware River near Philadelphia is the study reach Streamflow gages Tidal gages 9
10 A comprehensive verification of the inundation maps is done for a 6-yr period ( ) Flood inundation maps Reference Deterministic Raw ensemble Postprocessed forecast forecast forecast Verification strategy Multiyear Multiple metrics Conditional on flow conditions Applied at each cross section 10
11 HL-RDHM was calibrated and the performance is satisfactory 11
12 The calibration of the HEC-RAS model is also satisfactory 12
13 Deterministic flood inundation forecast is skillful at day 7 but highly biased 13
14 Raw ensemble flood inundation forecast skill improves over deterministic but still highly biased 14
15 Postprocessing flood inundation forecasts improves error, bias and skill 15
16 Ensemble and postprocessed flood maps show improvement (day 7 lead time) 16
17 We conclude that Flood inundation maps produced with GEFSRv2 weather ensemble forecasts show a tendency to underforecast high stage events. Hydrometeorological forecast uncertainties can introduce high errors to the flood inundation forecasts during high flow conditions in the riverine-estuarine transition zone, especially at the later lead times. Flood inundation maps generated with the raw ensemble hydrometeorological forecasts show more skill and less error than the deterministic flood inundation forecasts. Statistical postprocessing can improve the skill and reduce error and bias on flood inundation forecasts. 17
18 Contact information Michael Gomez: Alfonso Mejia: 18
19 Verification metrics Mean Absolute Error (MAE) The MAE quantifies the absolute average error between the simulated values and their corresponding observations. The MAE is expressed as follows: MAE 1 n n Xi Yi i1 where Xi and Yi denote the simulated and observed flow, respectively, at time i. Root mean square error The RMSE quantifies the absolute average error between the simulated values and their corresponding observations. Given that the error is squared before averaging the metric is sensitive to larger errors. The RMSE is given by RMSE N Xi Yi i1 ( ) where Xi and Yi denote the simulated and observed flow, respectively, at time i. n 2 19
20 Verification metrics Percent Bias (PB) PB measures the average tendency of the simulated values to be larger or smaller than the observed. The PB is given by N where Si and Yi denote the simulated and observed flow, respectively, at time i. Nash-Sutcliffe Efficiency (NSE) ( Y S ) i i i1 PB 100, N The NSE is defined as the ratio of the residual variance to the initial variance. It is widely used to measure the accuracy of the simulated flows in comparison to the observed mean. The range of NSE can vary between negative infinity to 1. Any positive value close to 1 indicates a good match between the simulated and observed variable while a negative value indicates that the observed mean is better than the simulated. The NSE is defined as: where Si, Yi, and are the simulated, observed, and mean observed flow, respectively, at time i. i1 Y NSE 1 i N i1 N i1 ( S Y) i ( Y Y) i i i
21 Verification metrics Wilmott Skill (WS) The WS is a widely used metric for measuring the performance of hydrodynamic models, especially in tidal rivers and estuaries. The range of the WS can vary between 0 and 1. A WS value of 1 means a perfect agreement between predictions and observations, and a value of 0 represents no skill. The WS can be expressed as: Yi Xi i1 WS 1 N Yi X i X i X i i1 N 2 2 where Xi, Yi and denote the simulate, observed and mean observed stage heights, respectively, at time i. 21
22 Verification metrics Mean Continuous Ranked Probability Skill Score (CRPSS) Continuous Ranked Probability Score (CRPS), which is less sensitive to sampling uncertainty, is used to measure the integrated square difference between the cumulative distribution function (cdf) of a forecast, F ( q ) x, and the corresponding cdf of the observation, F ( ) y q. The CRPS is given by CRPS Fx( q) Fy( q) dq. To evaluate the skill of the main forecast system relative to the reference forecast system, the associated skill score, the mean Continuous Ranked Probability Skill Score (CRPSS), is defined as: CRPSmain CRPSS 1, CRPSreference where the CRPS is averaged across n pairs of forecasts and observations to calculate the mean CRPS of the main forecast system ( CRPSmain ) and reference forecast system ( CRPSreference ). The CRPSS ranges from -ꝏ to 1, with negative scores indicating that the system to be evaluated has worse CRPS than the reference forecast system, while positive scores indicate a higher skill for the main forecast system relative to the reference forecast system, with 1 indicating perfect skill. 2 22
23 Statistical postprocessor (QR) QR is a statistical method for estimating the quantiles of a conditional distribution [7, 8]. Using the training dataset a set of quantile error models are derived for individual lead times: ˆ a b, n, n, n n, Where and are regression constants that are determined by minimizing the sum of the residual from the training data set: N i1 Q ˆ i,q, n n, i n, i i min, 23
24 Statistical postprocessor (QR) * is the weighting function for the τ th quantile defined as: ni,, n n, i Where is the residual, defined as the difference between the observed error and the quantile regression estimated error for a given lead time n and quantile. Lastly, to obtain the calibrated forecast,, the following equation is used: f,n 1 n, i if n, i 0. n, i if n, i f ˆ., n Q n, n 24
Inflow Forecasting for Hydropower Operations: Bayesian Model Averaging for Postprocessing Hydrological Ensembles
Inflow Forecasting for Hydropower Operations: Bayesian Model Averaging for Postprocessing Hydrological Ensembles Andreas Kleiven, Ingelin Steinsland Norwegian University of Science & Technology Dept. of
More information5.2 PRE-PROCESSING OF ATMOSPHERIC FORCING FOR ENSEMBLE STREAMFLOW PREDICTION
5.2 PRE-PROCESSING OF ATMOSPHERIC FORCING FOR ENSEMBLE STREAMFLOW PREDICTION John Schaake*, Sanja Perica, Mary Mullusky, Julie Demargne, Edwin Welles and Limin Wu Hydrology Laboratory, Office of Hydrologic
More informationCalibration of short-range global radiation ensemble forecasts
Calibration of short-range global radiation ensemble forecasts Zied Ben Bouallègue, Tobias Heppelmann 3rd International Conference Energy & Meteorology Boulder, Colorado USA June 2015 Outline EWeLiNE:
More informationOperational use of ensemble hydrometeorological forecasts at EDF (french producer of energy)
Operational use of ensemble hydrometeorological forecasts at EDF (french producer of energy) M. Le Lay, P. Bernard, J. Gailhard, R. Garçon, T. Mathevet & EDF forecasters matthieu.le-lay@edf.fr SBRH Conference
More informationJ11.5 HYDROLOGIC APPLICATIONS OF SHORT AND MEDIUM RANGE ENSEMBLE FORECASTS IN THE NWS ADVANCED HYDROLOGIC PREDICTION SERVICES (AHPS)
J11.5 HYDROLOGIC APPLICATIONS OF SHORT AND MEDIUM RANGE ENSEMBLE FORECASTS IN THE NWS ADVANCED HYDROLOGIC PREDICTION SERVICES (AHPS) Mary Mullusky*, Julie Demargne, Edwin Welles, Limin Wu and John Schaake
More informationStandardized Anomaly Model Output Statistics Over Complex Terrain.
Standardized Anomaly Model Output Statistics Over Complex Terrain Reto.Stauffer@uibk.ac.at Outline statistical ensemble postprocessing introduction to SAMOS new snow amount forecasts in Tyrol sub-seasonal
More informationEnsemble Copula Coupling: Towards Physically Consistent, Calibrated Probabilistic Forecasts of Spatio-Temporal Weather Trajectories
Ensemble Copula Coupling: Towards Physically Consistent, Calibrated Probabilistic Forecasts of Spatio-Temporal Weather Trajectories Tilmann Gneiting and Roman Schefzik Institut für Angewandte Mathematik
More informationPostprocessing of Medium Range Hydrological Ensemble Forecasts Making Use of Reforecasts
hydrology Article Postprocessing of Medium Range Hydrological Ensemble Forecasts Making Use of Reforecasts Joris Van den Bergh *, and Emmanuel Roulin Royal Meteorological Institute, Avenue Circulaire 3,
More informationOperational Hydrologic Ensemble Forecasting. Rob Hartman Hydrologist in Charge NWS / California-Nevada River Forecast Center
Operational Hydrologic Ensemble Forecasting Rob Hartman Hydrologist in Charge NWS / California-Nevada River Forecast Center Mission of NWS Hydrologic Services Program Provide river and flood forecasts
More informationBasic Verification Concepts
Basic Verification Concepts Barbara Brown National Center for Atmospheric Research Boulder Colorado USA bgb@ucar.edu May 2017 Berlin, Germany Basic concepts - outline What is verification? Why verify?
More informationEnsemble Copula Coupling (ECC)
Ensemble Copula Coupling (ECC) Tilmann Gneiting Institut für Angewandte Mathematik Universität Heidelberg BfG Kolloquium, Koblenz 24. September 2013 Statistical Postprocessing of Ensemble Forecasts: EMOS/NR
More informationEnsemble Verification Metrics
Ensemble Verification Metrics Debbie Hudson (Bureau of Meteorology, Australia) ECMWF Annual Seminar 207 Acknowledgements: Beth Ebert Overview. Introduction 2. Attributes of forecast quality 3. Metrics:
More informationRobert Shedd Northeast River Forecast Center National Weather Service Taunton, Massachusetts, USA
Robert Shedd Northeast River Forecast Center National Weather Service Taunton, Massachusetts, USA Outline River Forecast Centers FEWS Implementation Status Forcing Data Ensemble Forecasting The Northeast
More information2016 HEPEX Workshop Université Laval, Quebec, Canada
2016 HEPEX Workshop Université Laval, Quebec, Canada Evaluating the Usefulness of the US NWS Hydrologic Ensemble Forecast Service (HEFS) in the Middle Atlantic Region for Flood and Drought Applications
More informationNational Oceanic and Atmospheric Administration, Silver Spring MD
Calibration and downscaling methods for quantitative ensemble precipitation forecasts Nathalie Voisin 1,3, John C. Schaake 2 and Dennis P. Lettenmaier 1 1 Department of Civil and Environmental Engineering,
More informationExploring ensemble forecast calibration issues using reforecast data sets
NOAA Earth System Research Laboratory Exploring ensemble forecast calibration issues using reforecast data sets Tom Hamill and Jeff Whitaker NOAA Earth System Research Lab, Boulder, CO tom.hamill@noaa.gov
More informationExtending a Metric Developed in Meteorology to Hydrology
Extending a Metric Developed in Meteorology to Hydrology D.M. Sedorovich Department of Agricultural and Biological Engineering, The Pennsylvania State University, University Park, PA 680, USA dms5@psu.edu
More informationJohn Callahan (Delaware Geological Survey) Kevin Brinson, Daniel Leathers, Linden Wolf (Delaware Environmental Observing System)
John Callahan (Delaware Geological Survey) Kevin Brinson, Daniel Leathers, Linden Wolf (Delaware Environmental Observing System) Delaware is extremely vulnerable to the impacts of coastal flooding Tropical
More informationAdaptation for global application of calibration and downscaling methods of medium range ensemble weather forecasts
Adaptation for global application of calibration and downscaling methods of medium range ensemble weather forecasts Nathalie Voisin Hydrology Group Seminar UW 11/18/2009 Objective Develop a medium range
More informationJP3.7 SHORT-RANGE ENSEMBLE PRECIPITATION FORECASTS FOR NWS ADVANCED HYDROLOGIC PREDICTION SERVICES (AHPS): PARAMETER ESTIMATION ISSUES
JP3.7 SHORT-RANGE ENSEMBLE PRECIPITATION FORECASTS FOR NWS ADVANCED HYDROLOGIC PREDICTION SERVICES (AHPS): PARAMETER ESTIMATION ISSUES John Schaake*, Mary Mullusky, Edwin Welles and Limin Wu Hydrology
More informationImpact of hydrological model uncertainty on predictability of seasonal streamflow forecasting in the River Rhine Basin
Impact of hydrological model uncertainty on predictability of seasonal streamflow forecasting in the River Rhine Basin Bastian Klein, Dennis Meißner Department M2 - Water Balance, Forecasting and Predictions
More informationApplication and verification of ECMWF products in Austria
Application and verification of ECMWF products in Austria Central Institute for Meteorology and Geodynamics (ZAMG), Vienna Alexander Kann 1. Summary of major highlights Medium range weather forecasts in
More informationConditional weather resampling for ensemble streamflow forecasting
Conditional weather resampling for ensemble streamflow forecasting Joost Beckers, Albrecht Weerts (Deltares Delft) Edwin Welles (Deltares USA) Ann McManamon (BPA) HEPEX 10 th anniversary workshop Washington
More informationApplication and verification of ECMWF products in Austria
Application and verification of ECMWF products in Austria Central Institute for Meteorology and Geodynamics (ZAMG), Vienna Alexander Kann, Klaus Stadlbacher 1. Summary of major highlights Medium range
More informationFocus on parameter variation results
Accounting for Model Uncertainty in the Navy s Global Ensemble Forecasting System C. Reynolds, M. Flatau, D. Hodyss, J. McLay, J. Moskaitis, J. Ridout, C. Sampson, J. Cummings Naval Research Lab, Monterey,
More informationHeihe River Runoff Prediction
Heihe River Runoff Prediction Principles & Application Dr. Tobias Siegfried, hydrosolutions Ltd., Zurich, Switzerland September 2017 hydrosolutions Overview Background Methods Catchment Characterization
More informationQuantifying Weather and Climate Impacts on Health in Developing Countries (QWeCI)
Quantifying Weather and Climate Impacts on Health in Developing Countries (QWeCI) Science Talk QWeCI is funded by the European Commission s Seventh Framework Research Programme under the grant agreement
More informationSurface Hydrology Research Group Università degli Studi di Cagliari
Surface Hydrology Research Group Università degli Studi di Cagliari Evaluation of Input Uncertainty in Nested Flood Forecasts: Coupling a Multifractal Precipitation Downscaling Model and a Fully-Distributed
More informationPrecipitation Calibration for the NCEP Global Ensemble Forecast System
Precipitation Calibration for the NCEP Global Ensemble Forecast System *Yan Luo and Yuejian Zhu *SAIC at Environmental Modeling Center, NCEP/NWS, Camp Springs, MD Environmental Modeling Center, NCEP/NWS,
More informationCalibration of extreme temperature forecasts of MOS_EPS model over Romania with the Bayesian Model Averaging
Volume 11 Issues 1-2 2014 Calibration of extreme temperature forecasts of MOS_EPS model over Romania with the Bayesian Model Averaging Mihaela-Silvana NEACSU National Meteorological Administration, Bucharest
More informationAn Overview of Operations at the West Gulf River Forecast Center Gregory Waller Service Coordination Hydrologist NWS - West Gulf River Forecast Center
National Weather Service West Gulf River Forecast Center An Overview of Operations at the West Gulf River Forecast Center Gregory Waller Service Coordination Hydrologist NWS - West Gulf River Forecast
More informationA Multivariate Modeling Approach for Generating Ensemble Climatology Forcing for Hydrologic Applications
Portland State University PDXScholar Dissertations and Theses Dissertations and Theses Spring 7-21-2015 A Multivariate Modeling Approach for Generating Ensemble Climatology Forcing for Hydrologic Applications
More informationPerformance evaluation of the national 7-day water forecast service
22nd International Congress on Modelling and Simulation, Hobart, Tasmania, Australia, 3 to 8 December 2017 mssanz.org.au/modsim2017 Performance evaluation of the national 7-day water forecast service H.A.P.
More informationProbabilistic wind speed forecasting in Hungary
Probabilistic wind speed forecasting in Hungary arxiv:1202.4442v3 [stat.ap] 17 Mar 2012 Sándor Baran and Dóra Nemoda Faculty of Informatics, University of Debrecen Kassai út 26, H 4028 Debrecen, Hungary
More informationPeter P. Neilley. And. Kurt A. Hanson. Weather Services International, Inc. 400 Minuteman Road Andover, MA 01810
6.4 ARE MODEL OUTPUT STATISTICS STILL NEEDED? Peter P. Neilley And Kurt A. Hanson Weather Services International, Inc. 400 Minuteman Road Andover, MA 01810 1. Introduction. Model Output Statistics (MOS)
More informationVerification of Probability Forecasts
Verification of Probability Forecasts Beth Ebert Bureau of Meteorology Research Centre (BMRC) Melbourne, Australia 3rd International Verification Methods Workshop, 29 January 2 February 27 Topics Verification
More informationVerification of WAQUA/DCSMv5 s operational water level probability forecasts
Ministry of Infrastructure and Water Management Verification of WAQUA/DCSMv5 s operational water level probability forecasts N. Wagenaar KNMI Internal report IR-18-1 UTRECHT UNIVSERSITY DEPARTMENT OF
More informationFlood Forecasting. Fredrik Wetterhall European Centre for Medium-Range Weather Forecasts
Flood Forecasting Fredrik Wetterhall (fredrik.wetterhall@ecmwf.int) European Centre for Medium-Range Weather Forecasts Slide 1 Flooding a global challenge Number of floods Slide 2 Flooding a global challenge
More information3.6 NCEP s Global Icing Ensemble Prediction and Evaluation
1 3.6 NCEP s Global Icing Ensemble Prediction and Evaluation Binbin Zhou 1,2, Yali Mao 1,2, Hui-ya Chuang 2 and Yuejian Zhu 2 1. I.M. System Group, Inc. 2. EMC/NCEP AMS 18th Conference on Aviation, Range,
More informationoperational status and developments
COSMO-DE DE-EPSEPS operational status and developments Christoph Gebhardt, Susanne Theis, Zied Ben Bouallègue, Michael Buchhold, Andreas Röpnack, Nina Schuhen Deutscher Wetterdienst, DWD COSMO-DE DE-EPSEPS
More informationSanjeev Kumar Jha Assistant Professor Earth and Environmental Sciences Indian Institute of Science Education and Research Bhopal
Sanjeev Kumar Jha Assistant Professor Earth and Environmental Sciences Indian Institute of Science Education and Research Bhopal Email: sanjeevj@iiserb.ac.in 1 Outline 1. Motivation FloodNet Project in
More informationEVALUATION OF THE NWS DISTRIBUTED HYDROLOGIC MODEL OVER THE TRINITY RIVER BASIN IN TEXAS
1 EVALUATION OF THE NWS DISTRIBUTED HYDROLOGIC MODEL OVER THE TRINITY RIVER BASIN IN TEXAS Arezoo Rafieei Nasab 1, Dong-Jun Seo 1, Robert Corby 2 and Paul McKee 2 1- Department of Civil Engineering, The
More informationVisualising and communicating probabilistic flow forecasts in The Netherlands
Visualising and communicating probabilistic flow forecasts in The Netherlands Eric Sprokkereef Centre for Water Management Division Crisis Management & Information Supply 2-2-2009 Content The basins Forecasting
More informationUsing Multivariate Adaptive Constructed Analogs (MACA) data product for climate projections
Using Multivariate Adaptive Constructed Analogs (MACA) data product for climate projections Maria Herrmann and Ray Najjar Chesapeake Hypoxia Analysis and Modeling Program (CHAMP) Conference Call 2017-04-21
More informationApplication and verification of ECMWF products 2010
Application and verification of ECMWF products Hydrological and meteorological service of Croatia (DHMZ) Lovro Kalin. Summary of major highlights At DHMZ, ECMWF products are regarded as the major source
More informationVerification of Continuous Forecasts
Verification of Continuous Forecasts Presented by Barbara Brown Including contributions by Tressa Fowler, Barbara Casati, Laurence Wilson, and others Exploratory methods Scatter plots Discrimination plots
More informationProspects for river discharge and depth estimation through assimilation of swath altimetry into a raster-based hydraulics model
Prospects for river discharge and depth estimation through assimilation of swath altimetry into a raster-based hydraulics model Kostas Andreadis 1, Elizabeth Clark 2, Dennis Lettenmaier 1, and Doug Alsdorf
More informationA comparison of ensemble post-processing methods for extreme events
QuarterlyJournalof theroyalmeteorologicalsociety Q. J. R. Meteorol. Soc. 140: 1112 1120, April 2014 DOI:10.1002/qj.2198 A comparison of ensemble post-processing methods for extreme events R. M. Williams,*
More informationBUREAU OF METEOROLOGY
BUREAU OF METEOROLOGY Building an Operational National Seasonal Streamflow Forecasting Service for Australia progress to-date and future plans Dr Narendra Kumar Tuteja Manager Extended Hydrological Prediction
More informationJoint Research Centre (JRC)
Toulouse on 15/06/2009-HEPEX 1 Joint Research Centre (JRC) Comparison of the different inputs and outputs of hydrologic prediction system - the full sets of Ensemble Prediction System (EPS), the reforecast
More informationPreliminary Viability Assessment (PVA) for Lake Mendocino Forecast Informed Reservoir Operations (FIRO)
Preliminary Viability Assessment (PVA) for Lake Mendocino Forecast Informed Reservoir Operations (FIRO) Rob Hartman Consultant to SCWA and CW3E May 30, 2017 Why Conduct a PVA? Key Questions for the PVA
More informationUsing Bayesian Model Averaging to Calibrate Forecast Ensembles
MAY 2005 R A F T E R Y E T A L. 1155 Using Bayesian Model Averaging to Calibrate Forecast Ensembles ADRIAN E. RAFTERY, TILMANN GNEITING, FADOUA BALABDAOUI, AND MICHAEL POLAKOWSKI Department of Statistics,
More informationApplication of a medium range global hydrologic probabilistic forecast scheme to the Ohio River. Basin
Application of a medium range global hydrologic probabilistic forecast scheme to the Ohio River Basin Nathalie Voisin 1, Florian Pappenberger 2, Dennis P. Lettenmaier 1,4, Roberto Buizza 2, John C. Schaake
More informationQuantitative Flood Forecasts using Short-term Radar Nowcasting
Quantitative Flood Forecasts using Short-term Radar Nowcasting Enrique R. Vivoni *, Dara Entekhabi *, Rafael L. Bras *, Matthew P. Van Horne *, Valeri Y. Ivanov *, Chris Grassotti + and Ross Hoffman +
More informationFlood forecast errors and ensemble spread A case study
WATER RESOURCES RESEARCH, VOL. 48, W10502, doi:10.1029/2011wr011649, 2012 Flood forecast errors and ensemble spread A case study T. Nester, 1 J. Komma, 1 A. Viglione, 1 and G. Blöschl 1 Received 18 November
More informationGL Garrad Hassan Short term power forecasts for large offshore wind turbine arrays
GL Garrad Hassan Short term power forecasts for large offshore wind turbine arrays Require accurate wind (and hence power) forecasts for 4, 24 and 48 hours in the future for trading purposes. Receive 4
More informationSession III: New ETSI Model on Wideband Speech and Noise Transmission Quality Phase II. STF Validation results
Session III: New ETSI Model on Wideband Speech and Noise Transmission Quality Phase II STF 294 - Validation results ETSI Workshop on Speech and Noise in Wideband Communication Javier Aguiar (University
More informationExercise Part 1 - Producing Guidance and Verification -
Exercise Part 1 - Producing Guidance and Verification - 1 Objectives To understand how to produce guidance for seasonal temperature and precipitation. To think rationally and find possible predictors.
More informationCalibrated Surface Temperature Forecasts from the Canadian Ensemble Prediction System Using Bayesian Model Averaging
1364 M O N T H L Y W E A T H E R R E V I E W VOLUME 135 Calibrated Surface Temperature Forecasts from the Canadian Ensemble Prediction System Using Bayesian Model Averaging LAURENCE J. WILSON Meteorological
More informationEMC Probabilistic Forecast Verification for Sub-season Scales
EMC Probabilistic Forecast Verification for Sub-season Scales Yuejian Zhu Environmental Modeling Center NCEP/NWS/NOAA Acknowledgement: Wei Li, Hong Guan and Eric Sinsky Present for the DTC Test Plan and
More informationApplication and verification of ECMWF products 2015
Application and verification of ECMWF products 2015 Hungarian Meteorological Service 1. Summary of major highlights The objective verification of ECMWF forecasts have been continued on all the time ranges
More informationESTIMATING JOINT FLOW PROBABILITIES AT STREAM CONFLUENCES USING COPULAS
ESTIMATING JOINT FLOW PROBABILITIES AT STREAM CONFLUENCES USING COPULAS Roger T. Kilgore, P.E., D. WRE* Principal Kilgore Consulting and Management 2963 Ash Street Denver, CO 80207 303-333-1408 David B.
More informationOverview of Achievements October 2001 October 2003 Adrian Raftery, P.I. MURI Overview Presentation, 17 October 2003 c 2003 Adrian E.
MURI Project: Integration and Visualization of Multisource Information for Mesoscale Meteorology: Statistical and Cognitive Approaches to Visualizing Uncertainty, 2001 2006 Overview of Achievements October
More informationFlash Flood Guidance System On-going Enhancements
Flash Flood Guidance System On-going Enhancements Hydrologic Research Center, USA Technical Developer SAOFFG Steering Committee Meeting 1 10-12 July 2017 Jakarta, INDONESIA Theresa M. Modrick Hansen, PhD
More informationRadar precipitation measurement in the Alps big improvements triggered by MAP
Radar precipitation measurement in the Alps big improvements triggered by MAP Urs Germann, Gianmario Galli, Marco Boscacci MeteoSwiss, Locarno-Monti MeteoSwiss radar Monte Lema, 1625m Can we measure precipitation
More informationScientific Verification of Deterministic River Stage Forecasts
APRIL 2009 W E L L E S A N D S O R O O S H I A N 507 Scientific Verification of Deterministic River Stage Forecasts EDWIN WELLES Systems Engineering Center, National Weather Service, Silver Spring, Maryland
More informationHYDROLOGIC FORECAST PRODUCTS from BAYESIAN FORECASTING SYSTEM
HYDROLOGIC FORECAST PRODUCTS from BAYESIAN FORECASTING SYSTEM Roman Krzysztofowicz University of Virginia USA Presented at the CHR-WMO Workshop-Expert Consultation on Ensemble Prediction and Uncertainty
More informationForecast verification at Deltares
Forecast verification at Deltares Dr Jan Verkade October 26, 2016 Brief introduction: Jan Verkade Hydrologist; expert in Real-time hydrological forecasting Member of the Rijkswaterstaat River Forecasting
More informationLinking regional climate simulations and hydrologic models for climate change impact studies A case study in central Indiana (USA)
Linking regional climate simulations and hydrologic models for climate change impact studies A case study in central Indiana (USA) Presented by: Indrajeet Chaubey Corresponding Author: Hendrik Rathjens
More informationFLORA: FLood estimation and forecast in complex Orographic areas for Risk mitigation in the Alpine space
Natural Risk Management in a changing climate: Experiences in Adaptation Strategies from some European Projekts Milano - December 14 th, 2011 FLORA: FLood estimation and forecast in complex Orographic
More informationAN OVERVIEW OF ENSEMBLE STREAMFLOW PREDICTION STUDIES IN KOREA
AN OVERVIEW OF ENSEMBLE STREAMFLOW PREDICTION STUDIES IN KOREA DAE-IL JEONG, YOUNG-OH KIM School of Civil, Urban & Geosystems Engineering, Seoul National University, San 56-1, Sillim-dong, Gwanak-gu, Seoul,
More informationMeasuring the Ensemble Spread-Error Relationship with a Probabilistic Approach: Stochastic Ensemble Results
Measuring the Ensemble Spread-Error Relationship with a Probabilistic Approach: Stochastic Ensemble Results Eric P. Grimit and Clifford F. Mass Department of Atmospheric Sciences University of Washington,
More informationIntegrating Weather Forecasts into Folsom Reservoir Operations
Integrating Weather Forecasts into Folsom Reservoir Operations California Extreme Precipitation Symposium September 6, 2016 Brad Moore, PE US Army Corps of Engineers Biography Brad Moore is a Lead Civil
More informationBayesian merging of multiple climate model forecasts for seasonal hydrological predictions
Click Here for Full Article JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 112,, doi:10.1029/2006jd007655, 2007 Bayesian merging of multiple climate model forecasts for seasonal hydrological predictions Lifeng
More informationInvestigating the Applicability of Error Correction Ensembles of Satellite Rainfall Products in River Flow Simulations
1194 J O U R N A L O F H Y D R O M E T E O R O L O G Y VOLUME 14 Investigating the Applicability of Error Correction Ensembles of Satellite Rainfall Products in River Flow Simulations VIVIANA MAGGIONI,*
More informationAnalyzing Streamflow Forecasts in the Context of System Performance: A Case Study of the City of Baltimore Water Supply
University of Massachusetts Amherst ScholarWorks@UMass Amherst Environmental & Water Resources Engineering Masters Projects Civil and Environmental Engineering Winter 12-2016 Analyzing Streamflow Forecasts
More informationBasic Verification Concepts
Basic Verification Concepts Barbara Brown National Center for Atmospheric Research Boulder Colorado USA bgb@ucar.edu Basic concepts - outline What is verification? Why verify? Identifying verification
More informationA statistical post-processor for accounting of hydrologic uncertainty in short-range ensemble streamflow prediction
Hydrol Earth Syst Sci Discuss,, 1987, 06 wwwhydrol-earth-syst-sci-discussnet//1987/06/ Author(s) 06 This work is licensed under a Creative Commons License Hydrology and Earth System Sciences Discussions
More informationArkansas-Red Basin River Forecast Center Operations. RRVA Conference Durant, OK 8/22/2013 Jeff McMurphy Sr. Hydrologist - ABRFC
Arkansas-Red Basin River Forecast Center Operations RRVA Conference Durant, OK 8/22/2013 Jeff McMurphy Sr. Hydrologist - ABRFC NWS River Forecast Centers NWS Weather Forecast Offices Operations Staffing
More informationMuhammad Noor* & Tarmizi Ismail
Malaysian Journal of Civil Engineering 30(1):13-22 (2018) DOWNSCALING OF DAILY AVERAGE RAINFALL OF KOTA BHARU KELANTAN, MALAYSIA Muhammad Noor* & Tarmizi Ismail Department of Hydraulic and Hydrology, Faculty
More informationREQUIREMENTS FOR WEATHER RADAR DATA. Review of the current and likely future hydrological requirements for Weather Radar data
WORLD METEOROLOGICAL ORGANIZATION COMMISSION FOR BASIC SYSTEMS OPEN PROGRAMME AREA GROUP ON INTEGRATED OBSERVING SYSTEMS WORKSHOP ON RADAR DATA EXCHANGE EXETER, UK, 24-26 APRIL 2013 CBS/OPAG-IOS/WxR_EXCHANGE/2.3
More informationEffect of trends on the estimation of extreme precipitation quantiles
Hydrology Days 2010 Effect of trends on the estimation of extreme precipitation quantiles Antonino Cancelliere, Brunella Bonaccorso, Giuseppe Rossi Department of Civil and Environmental Engineering, University
More informationMotivation & Goal. We investigate a way to generate PDFs from a single deterministic run
Motivation & Goal Numerical weather prediction is limited by errors in initial conditions, model imperfections, and nonlinearity. Ensembles of an NWP model provide forecast probability density functions
More informationSeamless water forecasting for Australia
Seamless water forecasting for Australia Narendra Tuteja, Dasarath Jayasuriya and Jeff Perkins 2 December 2015 Built on extensive research partnerships WIRADA What we do Perspective Situational awareness
More informationStatistical interpretation of Numerical Weather Prediction (NWP) output
Statistical interpretation of Numerical Weather Prediction (NWP) output 1 2 3 Four types of errors: Systematic errors Model errors Representativeness Synoptic errors Non-systematic errors Small scale noise
More informationQuantifying uncertainty in monthly and seasonal forecasts of indices
Federal Department of Home Affairs FDHA Federal Office of Meteorology and Climatology MeteoSwiss Quantifying uncertainty in monthly and seasonal forecasts of indices Christoph Spirig, Irina Mahlstein,
More informationHydrologic Ensemble Prediction: Challenges and Opportunities
Hydrologic Ensemble Prediction: Challenges and Opportunities John Schaake (with lots of help from others including: Roberto Buizza, Martyn Clark, Peter Krahe, Tom Hamill, Robert Hartman, Chuck Howard,
More information132 ensemblebma: AN R PACKAGE FOR PROBABILISTIC WEATHER FORECASTING
132 ensemblebma: AN R PACKAGE FOR PROBABILISTIC WEATHER FORECASTING Chris Fraley, Adrian Raftery University of Washington, Seattle, WA USA Tilmann Gneiting University of Heidelberg, Heidelberg, Germany
More informationUpscaled and fuzzy probabilistic forecasts: verification results
4 Predictability and Ensemble Methods 124 Upscaled and fuzzy probabilistic forecasts: verification results Zied Ben Bouallègue Deutscher Wetterdienst (DWD), Frankfurter Str. 135, 63067 Offenbach, Germany
More informationstatistical methods for tailoring seasonal climate forecasts Andrew W. Robertson, IRI
statistical methods for tailoring seasonal climate forecasts Andrew W. Robertson, IRI tailored seasonal forecasts why do we make probabilistic forecasts? to reduce our uncertainty about the (unknown) future
More informationMethods of forecast verification
Methods of forecast verification Kiyotoshi Takahashi Climate Prediction Division Japan Meteorological Agency 1 Outline 1. Purposes of verification 2. Verification methods For deterministic forecasts For
More informationModel verification / validation A distributions-oriented approach
Model verification / validation A distributions-oriented approach Dr. Christian Ohlwein Hans-Ertel-Centre for Weather Research Meteorological Institute, University of Bonn, Germany Ringvorlesung: Quantitative
More information1. INTRODUCTION 2. QPF
440 24th Weather and Forecasting/20th Numerical Weather Prediction HUMAN IMPROVEMENT TO NUMERICAL WEATHER PREDICTION AT THE HYDROMETEOROLOGICAL PREDICTION CENTER David R. Novak, Chris Bailey, Keith Brill,
More informationSeasonal Forecasting. Albrecht Weerts. 16 October 2014
Seasonal Forecasting Albrecht Weerts ` Societal themes Mission: developing and applying top level expertise in the area of water, subsurface and infrastructure for people, planet and prosperity. Foundation
More informationArgument to use both statistical and graphical evaluation techniques in groundwater models assessment
Argument to use both statistical and graphical evaluation techniques in groundwater models assessment Sage Ngoie 1, Jean-Marie Lunda 2, Adalbert Mbuyu 3, Elie Tshinguli 4 1Philosophiae Doctor, IGS, University
More informationApplication and verification of ECMWF products 2017
Application and verification of ECMWF products 2017 Finnish Meteorological Institute compiled by Weather and Safety Centre with help of several experts 1. Summary of major highlights FMI s forecasts are
More informationPostprocessing of Numerical Weather Forecasts Using Online Seq. Using Online Sequential Extreme Learning Machines
Postprocessing of Numerical Weather Forecasts Using Online Sequential Extreme Learning Machines Aranildo R. Lima 1 Alex J. Cannon 2 William W. Hsieh 1 1 Department of Earth, Ocean and Atmospheric Sciences
More information(Statistical Forecasting: with NWP). Notes from Kalnay (2003), appendix C Postprocessing of Numerical Model Output to Obtain Station Weather Forecasts
35 (Statistical Forecasting: with NWP). Notes from Kalnay (2003), appendix C Postprocessing of Numerical Model Output to Obtain Station Weather Forecasts If the numerical model forecasts are skillful,
More informationRiverine Modeling Proof of Concept
Technical Team Meeting Riverine Modeling Proof of Concept Version 2 HEC-RAS Open-water Flow Routing Model April 15-17, 2014 Prepared by R2 Resource Consultants, Brailey Hydrologic, Geovera, Tetra Tech,
More informationMEDIUM-RANGE ENSEMBLE PRECIPITATION AND STREAMFLOW FORECASTING FOR THE UPPER TRINITY RIVER BASIN IN TEXAS VIA THE NWS HYDROLOGIC
MEDIUM-RANGE ENSEMBLE PRECIPITATION AND STREAMFLOW FORECASTING FOR THE UPPER TRINITY RIVER BASIN IN TEXAS VIA THE NWS HYDROLOGIC ENSEMBLE FORECAST SERVICE by HOSSEIN SADEGHI Presented to the Faculty of
More information