UNIDATA SUMMER WORKSHOP Expanding Horizons: Unsing Environmental Data for Education, Research and Decision Making 23-27 June 2003 RECENT HYDROLOGIC APPLICATIONS.

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Presentation transcript:

UNIDATA SUMMER WORKSHOP Expanding Horizons: Unsing Environmental Data for Education, Research and Decision Making June 2003 RECENT HYDROLOGIC APPLICATIONS USING REMOTELY SENSED AND ENVIRONMENTAL DATA AND GEOGRAPHIC INFORMATION SYSTEMS Theresa M. Carpenter, P.E. Hydrologic Research Center

Technology Transfer at the Hydrologic Research Center Advancing the science and engineering of hydrology and water resources.

Outline of Laboratory Session “Hands-on” Demonstration of PANMAP processing Presentation of Recent Applications PANMAP – rainfall estimation and forecasting for the Panama Canal watershed HRCDHM – distributed hydrologic modeling for streamflow forecasting CAFFG – fl ash flood guidance for Central America INFORM – use of climate information in reservoir management

Introduction to PANMAP GOAL: To design and implement a forecasting system for real-time rainfall forecasting over the Panama Canal Watershed Development began in 1997, implemented in Oct 998 Under operational use at the Panama Canal Authority Produces hourly precipitation estimates and forecasts for subcatchments of km 2 with a maximum forecast lead time of 12 hours.

Need for Forecasting Operation of the Panama Canal 13,000 – 14,000 vessels traverse the Panama Canal each year System of locks raise ships from sea level to level of Lake Gatun (26 m above sea level) between Pacific and Atlantic Oceans Objectives of forecasting is to maintain level of Lake Gatun

Panama Rain Storm

Panama Canal Watershed 3200km 2 of mountainous terrain = gauge locations Divided into 11 subcatchments ranging in size from km 2 Subcatchment 11 is Lake Gatun

PANMAP Data Sources Radar – 10cm weather radar located in Panama City ALERT gauge – approx. 25 automated hydromet stations located throughout watershed Radiosondes – upper air information from radiosondes launched twice daily ETA model – operational mesoscale prediction produce by NOAA Digital terrain elevation data – used in surface winds analysis

PANMAP SYSTEM

PANMAP Output

12/28/2000 – 12/31/2000 PANMAP – current status and verification System used operationally since October 1998 at PCA Validation performed for events through December 2001 (Georgakakos and Sperfslage, Preprints of AMS Annual Meeting 2003, paper J4.10)

Introduction to HRCDHM Hydrologic Research Center Distributed Hydrologic Model Developed as research tool to explore use of distributed hydrologic model in operational flow forecasting Hydrologic model components for mean areal precipitation computation, runoff-generation and streamflow routing Uses spatially distributed.precipitation input from operational WSR-88D weather radar Allows for spatially distributed parametric input Sponsored by NWS Office of Hydrologic Development

Major Components of HRCDHM software 1. Watershed Delineation Based on GIS processing of digital terrain data Provides subcatchment geometric characteristics (A, L, S) used in hydrologic model components

Major Components of HRCDHM software 1. Watershed Delineation Based on GIS processing of digital terrain data 2. Radar Data Processing Ingest of raw (binary) radar files and subbasin MAP computation

Major Components of HRCDHM software 1. Watershed Delineation Based on GIS processing of digital terrain data 2. Radar Data Processing Ingest of raw (binary) radar files and subbasin MAP computation 3. Hydrologic Modeling Model components based on those used operationally in the U.S.; produces streamflow estimate at outlet of each subcatchment

HRCDHM Binary radar files Subcatchment definition subcatchment runoff soil moisture streamflow Subcatchment MAP User-defined aggregation level Radar Processing Hydrologic Modeling Watershed Processing GIS-processed small-scale basins

HRCDHM Interface

Current Research on Distributed Modeling What is the impact of input uncertainty on flow simulations from distributed model design for operational flow-forecasting? Application basins were NWS-DMIP case study watersheds: Elk River at Tiff City, MO Baron Fork at Eldon, OK Blue River at Blue, OK Illinois River at Watts, OK Illinois River at Tahlequah, OK Examined sensitivity of flow simulations to uncertainty in both radar precipitation input and parametric input through ensemble simulations with HRCDHM Incorporated additional spatial database of soils properties to define distribution of hydrologic model parameters.

STATSGO Soils Database

Distribution of Soil Model Parameters Use GIS to determine fraction of each subcatchment covered by different STATSGO map units Compute average and range of soil properties (given in STATSGO database) for each subcatchment for soil zones consistent with hydrologic model Use subcatchment average soil properties to distribute subcatchment soil parameters & range to define uncertainty bounds

Sensitivity Analysis Output

Central America Flash Flood Guidance GOAL: To design and implement a prototype system for computing flash flood guidance and identify regions where precipitation exceeds guidance values in real time. Project began “in earnest” in late 2002; scheduled delivery: Fall Spatial Resolution of 100 – 300 km 2. Real-time precipitation from satellite estimates in conjunction with automated gauges (DCP).

FROM FLASH FLOOD GUIDANCE TO FLOOD WARNINGS

Application Region Nicaragua Belize Honduras Costa Rica Guatamala El Salvador Panama 7 Countries in Central America #1 Challenge = Communication! National Meteorologic Service National Hydrologic Services Various Response Agencies Regional Hydrology Center Hydro-electric Utilities

Training and Cooperation Activities with Users Technical System for Flash Flood Guidance Generation Links to Remotely Sensed and On Site Data System Products Dissemination INITIATIVE COMPONENTS

Satellite Data (NESDIS-NOAA): Based on GOES micron channel (InfraRed) Spatial resolution of rainfall estimates: 4 km Duration of rainfall estimates: 1, 3, 6, 12, and 24-hour accumulations, updated hourly Raingauge Data: Automated (DCP) continuous recording raingauges Hourly temporal resolution of rainfall accumulations Sparse spatial coverage (< 150 in region) Radar Data: Currently in Panama only Hourly temporal resolution of rainfall accumulations Spatial resolution of rainfall estimates: 4 km PRECIPITATION INPUT

Definition of Catchment Units Spatial scale of 100 – 300 km2 GIS-delineation processing GTOPO DEM (1-km resolution) Evaluation of stream delineation using DCW Data (1:1,000,000-Scale) and local resources CURRENT STATUS OF TECHNICAL SYSTEM

Satellite image and data files for current Decoding and geo-referencing data files CURRENT STATUS OF TECHNICAL SYSTEM

ADDITIONAL GIS RESOURCES Digitized Catchment Boundaries Digitized Stream Locations Soils Maps and Information Land Use Maps Land Cover/Vegetation Maps Flood Inundation Maps Population Data

Regional Center SYSTEM PRODUCTS DISSEMINATION HN Regional Center EL CRPA GT BZ NI National Met/Hyd Services Emergency Response Via Internet/FTP Existing service range from modem to ISDN, and 56k to 512k (soon) Products: text files, images, GIS databases FFG, MAP and soil moisture 1-, 3-, 6-, and 12-hour accumulations km 2 basins

INtegrated FOrecasting and Reservoir Management (INFORM) Assess benefits of the use of climate information and forecasts in operational reservoir management and planning Builds on results for Folsom Reservoir in California Involves downscaling of GCM information, ensemble hydrologic forecasting and reservoir modeling Sponsored by NOAA Office of Global Program, California Energy Commission and NWS GOAL:

Use of Climate Information

Management Benefits Shown for Folsom Reservoir, CA Perfect Operational CGCM1Echam Baseline SPILLAGE PerfectEcham Operational Baseline CGCM1 DAMAGE PerfectEcham OperationalBaseline CGCM1 ENERGY

INFORM DEMONSTRATION SITES Trinity Shasta Oroville Folsom Pit R American R Feather R Sacramento R Trinity Dam on Trinity River Major Reservoirs in Northern California Shasta Dam on Pit River Lake Oroville on Feather River Folsom Lake on American River

GIS in INFORM watershed definition elevation zones soils characteristics

Outline of Laboratory Session “Hands-on” Demonstration of PANMAP processing Presentation of Recent Applications PANMAP – rainfall estimation and forecasting for the Panama Canal watershed HRCDHM – distributed hydrologic modeling for streamflow forecasting CAFFG – fl ash flood guidance for Central America INFORM – use of climate information in reservoir management

PANMAP DEMONSTRATION UNIDATA SUMMER WORKSHOP Expanding Horizons: Unsing Environmental Data for Education, Research and Decision Making June 2003