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Join GITA's free webinar Tuesday, Sept. 16
GITA
Water System Seismic Fragility

When: Tuesday, September 16
Time: 1:00 PM CDT
Who: Roberts McMullin, P.E., Associate Civil Engineer, East Bay Municipal Utility District - Pipeline Infrastructure
Yogesh Prashar, P.E., G.E. , Associate Civil Engineer, East Bay Municipal Utility District - Materials Engineering

The Seismic activity is a significant threat to buried infrastructure, particularly water systems. East Bay Municipal Utility District (EBMUD), serving more than a million customers in the San Francisco Bay area, developed water system damage prediction models to estimate the level of fragility of embankment dam reservoirs, tank reservoirs, and large diameter pipelines using multiple scenario earthquake events. The goal of the analysis was to understand the estimated level of water system damage for pre-event response planning purposes. This webinar will present the damage prediction results and an approach for other agencies to produce similar damage predictions models.

The following water system components were evaluated in the damage prediction model:

1. 29 embankment dam reservoirs.
2. 147 water distribution reservoirs consisting of 86 steel tanks, 58 concrete tanks, and 4 wood tanks.
3. Approximately 360 miles of large diameter pipelines consisting of welded steel pipe, reinforced concrete cylinder pipe, cast-iron pipe, and pre-tensioned concrete cylinder pipe.

EBMUD successfully modeled and documented the water system fragility results using six separate input scenario earthquake events. USGS provided the following scenario earthquakes:

1. Aagaard Mw 7.05 combined Hayward South and North,
2. Aagaard Mw 6.76 Hayward South,
3. ShakeMap Mw 7.05 Hayward,
4. ShakeMap Mw 7.05 Hayward Directivity Northwest (dirnw),
5. ShakeMap Mw 7.05 Hayward Directivity Southeast (dirse), and
6. ShakeMap Mw 7.9 San Andreas.

EBMUD obtained USGS grid XML and ShakeMap GIS shapefiles, which provided the necessary spatial ground shaking intensity metrics required for the damage prediction model. Along with ground shaking, EBMUD also acquired current hazard maps from the Bay Area to model damage due to liquefaction, landslide, and fault offset on the large diameter pipelines.
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The top five things you need to know about drones and GIS
Directions Magazine
The mere mention of "drones" conjures thoughts of bombs and missiles raining down on unsuspecting bad guys. However, most of today's drones, more accurately described as unmanned aerial vehicles, are or will be focused on generating data to solve peace-time applications.
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NGA's map to put a world of geospatial intell in one place
Defense Systems
By 2018, the National Geospatial-Intelligence Agency envisions a seamless, dynamic Map of the World that enables users across the intelligence community to visualize and access integrated intelligence content fixed to accurate and authoritative geographic features on Earth.
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Majority support FCC rule requiring carriers to provide accurate indoor locations
GPS World
A new survey of more than 1,000 consumers found a dramatic gap between the limited location requirements for cell-phone carriers and broad public expectations that wireless callers can be found by emergency responders if they dial 9-1-1 in an emergency. According to the survey, two-thirds of cell-phone owners (66 percent) thought that wireless companies could help emergency responders locate them at least to their block, if they call 9-1-1 from inside their homes.
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Revealed: the whiteboard doodles that became Google Maps
The Sydney Morning Herald
A photograph of seemingly random scribbles on a whiteboard is the thought bubble for what today is known as Google Maps. The annotations — revealed here publicly for the first time — were scrawled in 2004 by Australian software engineer Noel Gordon, one of the four men who founded the Sydney-based digital mapping start-up Where 2 Technologies.
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GNSS charts drought-driven tectonic 'uplift' in western U.S.
Inside GNSS
Precise GNSS measurements have revealed that the severe drought gripping the western United States in recent years is changing the landscape well beyond localized effects of water restrictions and browning lawns, according to scientists at Scripps Institution of Oceanography at the University of California at San Diego.
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ESA is investigating solutions for Galileo satellites' misplaced orbit
Forbes
On Friday, Aug. 22, two European Space Agency Galileo satellites were injected into improper orbits shortly after their launch from French Guiana. Since then, the ESA has been actively investigating the situation in order to determine what — if anything — can be done to salvage these satellites for use in the Galileo program.
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The good news for solar that could be bad news for utilities
Smart Grid News
Morgan Stanley says major utility companies will have tough years ahead. In a series of three reports over the past year, the investment banking giant says customers may leave the grid in favor of generating their own electricity. Most of us agree that solar power will eventually reach grid parity. Emphasis on eventually.
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China makes large strides in satellite intelligence
Want China Times
Russian media say China has become one of the few nations capable of building a high-definition Earth observation satellite after it launched its first, and with existing weapons the system may be one of the most powerful in the world, reports Duowei, an outlet run by overseas Chinese. The observation satellite Gaofen-2, launched Aug. 19 from the Taiyuan Satellite Launch Center, is able to discern one-meter-long objects on the ground with high resolution in full color.
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Colby Horton, Vice President of Publishing, 469.420.2601
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Dennis Hall, Executive Editor, 469.420.2656   
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