The NOAA Hydrology Program and its requirements for GOES-R Pedro J. Restrepo Senior Scientist Office of Hydrologic Development NOAA’s National Weather.

Water PredictionsforLife Decisions


The NOAA Hydrology Program and its requirements for

GOES-RPedro J. Restrepo

Senior ScientistOffice of Hydrologic DevelopmentNOAA’s National Weather Service



Contents

• NOAA’s Hydrology Program– Program Description– Where is the Hydrology Program going– Observation Requirements



Hydrologic Time and Space Scales



NWS Hydrologic Service Delivery

National--NCEP

Major River Basin-RFC

Forecast Points-WFO



NWS River Forecast System

AnalysisHistorical Data

Calibration(Hydrologic andHydraulic Models)

Calibration System (CS)

Real-Time Observed and Forecast Data

Operational Forecast System (OFS)

Ensemble Streamflow

Prediction (ESP) System

Hydrologicand

Hydraulic Models

Analysis and DataAssimilation

Hydrologic andHydraulic Models

short term forecasts

current states

StatisticalAnalyses

ProbabilisticShort term toExtended

time

Analysiswindow

Interactive Forecast Program (IFP)

InteractiveAdjustments

flow



Conceptual Catchment Representation

Evapo-transpiration

Rainfall

Infiltration

Soil moisture storage

Groundwater storage

Fast flow

Percolation

Slow flow

Base flow

Total flow



Hydrologic Applications of Satellite Data

• Multi-sensor precipitation estimates

• Freezing level and potential evaporation observations and forecasts

• Data assimilation• Temperature and precipitation

forecast grids for use with distributed models

• Land surface input variables for atmospheric and hydrologic models

• Snow cover and snow water equivalent



Hydrologic Modeling Approaches

1. Rainfall and soil properties averaged over basin

2. One rainfall/runoff model

3. Prediction at only one point

1. Rainfall and soil properties in each grid/polygon

2. Rainfall/runoff model in each grid/polygon

3. Prediction at many points

4.4. New forecast information such as soil New forecast information such as soil moisture and evaporationmoisture and evaporation

Lumped Distributed (high resolution)



NOAA’s Hydrology Programwhere is it going?

• High-resolution distributed hydrologic modeling– High resolution observations of precipitation, temperature,

snow cover, snow water equivalent, soil moisture.

• Hydraulic models– High resolution observations of river and reservoir/lake

stage.

• Community Hydrologic Modeling System• Mud slide models

– High resolution observations of precipitation, soil moisture, land cover observations

• Water Resources





NOAA’s Water Resources

Rivers & Streams

Reservoirs & Lakes

The Great Lakes

Watershed Conditions

Wetlands

Estuaries

Coasts

“Any of the entire range of the Earth’s natural watersthat are of potential use to humans”



NOAA’s Water Resources Themes and Objectives

Socio-Economic Needs and Benefits– Multidisciplinary social science studies with demonstrations of product

and service benefits

Water Resource Data Assimilation– Doppler radar dual polarization and satellite quantitative precipitation,

snow, satellite vegetation, soil moisture, evaporation, tides, estuary water quality

Fresh Water Forecasting– High spatial resolution water resources information grids– Daily to seasonal probabilistic forecasts– Improved forecast information for extreme events (floods and droughts)

Estuary-Fresh Water Ecosystem Predictions– Fresh water forecast information directly incorporated into assessments

of ecosystem stress– Routine predictions of coastal water conditions



NOAA’s Hydrology Program Requirements















Thank You!



Gap-Filling:Radar Mosaic



Precipitation Field from Hydroestimator



Radar Mosaic filled with Hydroestimator



Present Hydrologic Use of GOES Data

CNRFC rain gauge network shows gauge density is uneven



CNRFC Effective Radar Coverage



CNRFC Dec 17, 2002Hydroestimator Bias Cor. Hydroestimator



Raingage + HydroestimatorMerged



Bias Correction and Data Merging

The NOAA Hydrology Program and its requirements for GOES-R Pedro J. Restrepo Senior Scientist Office of Hydrologic Development NOAA’s National Weather.

Documents

noaa hydrology program

pointsnew forecast information

soil properties

hydrologic modelssnow

satellite vegetation

potential use

extreme events floods

reservoirlake stage