Oak Ridge Today

ORNL helps emergency responders with hurricanes Harvey, Irma

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The map above is part of the LandScan system that has been used by Oak Ridge National Laboratory to help readiness, response, and recovery crews during Hurricane Harvey, which hit most heavily in Texas. This map shows population counts in the Houston area, with red areas having the highest counts and yellow areas lower counts and gray areas none. The map has a flooding overlay, where red is more flooding and green is less. (Photo by John Huotari/Oak Ridge Today)

The map above is part of the LandScan USA system that has been used by Oak Ridge National Laboratory to help readiness, response, and recovery crews during Hurricane Harvey, which hit Texas on Friday, Aug. 25, 2017. This map shows population counts in the Houston area, with red areas having the highest counts and yellow areas lower counts and gray areas none. The map has a flooding overlay, where red shows more flooding and green shows less. (Photo by John Huotari/Oak Ridge Today)

 

Data collection systems at Oak Ridge National Laboratory are being used to help emergency responders and recovery crews with two deadly hurricanes, Harvey and Irma.

The data collection systems are LandScan USA and EAGLE-I. Information from the systems is being used by the Federal Emergency Management Agency and U.S. Department of Homeland Security, among other agencies. The two systems give information on electric customer outages and population counts, and they are being used in daily briefings, according to ORNL staff members.

The first system, LandScan USA, shows population counts with a resolution of about 90 meters. The system can show color-coded maps with population counts ranging for high to low, and it includes daytime and nighttime populations.

Flood maps can be overlaid on the population count maps to help determine the best places for rescuers to respond, said Amy Rose, ORNL team lead in Population Distribution and Dynamics. Rose displayed that map and overlay during an interview in the EVEREST visualization laboratory at ORNL on Tuesday.

Houston, which experienced heavy flooding, didn’t evacuate before Hurricane Harvey, a category 4 storm that came ashore just northeast of Corpus Christi, Texas, on Friday night, August 25. [Read more…]

ORNL model explores location of future U.S. population growth

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ORNL Population Map

This 3-D visualization represents projected changes in U.S. population between 2010 and 2050 as predicted by a new Oak Ridge National Laboratory model. Areas seen in red indicate higher levels of population growth, whereas the vertical spikes signify population growth with new land development. (Image courtesy ORNL)

 

Researchers at Oak Ridge National Laboratory have developed a population distribution model that provides unprecedented county-level predictions of where people will live in the United States in the coming decades.

Initially developed to assist in the siting of new energy infrastructure, the team’s model has a broad range of implications from urban planning to climate change adaptation. The study is published in the journal Proceedings of the National Academy of Sciences.

“We do a census every 10 years because those data help us do long-term socioeconomic planning,” said Budhendra Bhaduri, who leads ORNL’s Geographic Information Science and Technology group. “Population projection numbers are important, but many pressing societal needs also require an understanding of where people are going to be. This has always been a challenge; we’ve never had a good method to make future projections spatially explicit.” [Read more…]