technology presentation watershed 2014
TRANSCRIPT
INFLOWSINTEGRATED FLOOD OBSERVATION AND WARNING SYSTEMWHAT IS IT?
• REAL-TIME DATA COLLECTION AND FLOOD WARNING SYSTEM
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INFLOWSINTEGRATED FLOOD OBSERVATION AND
WARNING SYSTEM
HISTORY• HURRICANE AGNES JUNE 1972. PRECIPITATION WAS 6 INCHES A DAY. JAMES
RIVER VIRGINIA CRESTED 36.5 FEET, HIGHEST IN 200 YEAR (VDEM, 2014). DAMAGE: 1400 HOMES; ROADS, BRIDGES DESTROYED; 13 PEOPLE KILLED; COST OF DAMAGE AMOUNTED TO $325 MILLION.
• DEVASTATING FLOODING OF 1977 AFFECTED KENTUCKY, VIRGINIA AND WEST VIRGINIA. NATIONAL WEATHER SERVICE (NWS) INITIATED NATIONAL FLASH FLOOD DEVELOPMENT IN 1978, INFLOWS DEVELOPED FROM THIS AS JOINT EFFORT WITH STATES.
• PROTOTYPE STARTED 1980, 12 COUNTIES ON THE APPALACHIAN, SUSCEPTIBILITY TO FLOODING (VDEM, 2014).
• 1985, CONGRESS APPROVED NWS INFLOWS FUNDING; EXPAND TO COVER
BEYOND INITIAL 7 STATES. LINKED AND INTEGRATED DATA AND INFORMATION THROUGH 250 COMPUTERS; 1500 SENSORS; 12 STATES AND 120 COUNTIES.
INFLOWSINTEGRATED FLOOD OBSERVATION AND
WARNING SYSTEM
OBJECTIVES:
STRENGTHEN STATE’S MITIGATION CAPACITY
REDUCE: LOSS OF LIFE PROPERTY DAMAGE LIMIT DISRUPTION OF ECONOMIC
ACTIVITIES
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INFLOWSINTEGRATED FLOOD OBSERVATION AND
WARNING SYSTEM
HOW THE SYSTEM WORKS• COMPOSED OF NETWORK:
SENSORSo STREAM GAUGE: PRESSURE TRANSDUCER,
RESERVOIR. DEPTH TRANSMITTED VHFo RAIN GAUGE: PIPE, SCREENED FUNNEL, TIPPING
BUCKET, 0.04 INCH, COUNTS TRANSMITTED VHF POWER SOURCE: SOLAR POWER TWO-WAY RF COMMUNICATIONS (TRANSMITTER,
REPEATER, RECEIVER), SOFTWARE (OS AND DATABASE) HARDWARE (COMPUTERS SYSTEMS)
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INFLOWSINTEGRATED FLOOD OBSERVATION AND
WARNING SYSTEMHOW THE SYSTEM WORKS
• NOTE:
• HARDWARE AND SOFTWARE DEPLOYED FROM DIFFERENT VENDORS.
• PRIVATELY OWNED AND RUN SYSTEMS CAN BE ALLOWED READ-ONLY ACCESS FROM INFLOWS NETWORK (INSTITUTIONS, RESEARCHERS, AGENCIES).
IMAGES FROM HTTPS://S.CAMPBELLSCI.COM/DOCUMENTS/US/CASE-STUDIES/53VIRGINIA-ALERT1.PDF
INFLOWSINTEGRATED FLOOD OBSERVATION AND
WARNING SYSTEMVIRGINIA INFLOWS
JOINT PROGRAM:• NWS AND VIRGINIA DEPARTMENT OF EMERGENCY MANAGEMENT (VDEM) AND
LOCAL AUTHORITIES. ROLES NWS
PROGRAM MANAGEMENT, NATIONALLY FUNDING (SOFTWARE DEVELOPMENT, COMMUNICATION DESIGN, CAPITAL
COSTS (COMPUTERS, TRANSMITTERS, SENSORS, RAIN GAUGES ETC.). VDEM
PROGRAM MANAGER AND ASSISTANT (COORDINATION) O & M OF CENTRAL COMPUTERS
LOCAL AUTHORITIES FLASH FLOOD COORDINATOR PREMISES FOR COMMUNICATION EQUIPMENT EMERGENCY RESPONSE PLAN
INFLOWSINTEGRATED FLOOD OBSERVATION AND
WARNING SYSTEM
VIRGINIA INFLOWS 35 LOCAL AUTHORITIES
282 RAIN SENSORS
80 STREAM SENSORS
PROTOCOL
DATA TRANSMITTED REAL-TIME TO COUNTY LOCATIONS COMPUTERS. DATA PROCESSED AND (VDEM, 2014).
OPTIONS
STAND ALONE
INTEGRATED; SEND INFLOWS DATABASES BY VSP MICROWAVE SYSTEM, STATE & NATIONALLY
INFLOWSINTEGRATED FLOOD OBSERVATION AND
WARNING SYSTEM
RAPIDAN RIVER WATERSHED INFLOWS
LOCATION
• RAPIDAN RIVER AT ROUTE 29
• ROBINSON RIVER AT ROUTE 29
INFLOWSINTEGRATED FLOOD OBSERVATION AND
WARNING SYSTEM
INFLOWS LIMITATIONSCOST (PURCHASE, INSTALLATION, O & M)
TECHNOLOGY CHANGE
FAILURE (CALIBRATION, DISTURBANCE-CAUSED)
REFERENCE
Virginia Department of Emergency Management, 2014. Integrated Flood Observing and Warning Systems (IFLOWS). Web site
http://www.vaemergency.gov/content/integrated-flood-observing-and-warning-systems-iflows
U.S. Army Corps of Engineers, 2013. Upper and Middle Rappahannock River Report 2013. http://www.nao.usace.army.mil/Portals/31/docs/business/FPMS/PASDocuments/App_A_4a.pdf