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Technology Report - Experts Work to Develop Better Tools to Predict Severe Weather
This is the VOA Special English Technology Report.
America’s National Oceanic and Atmospheric1 Administration is celebrating the one year anniversary of its Weather-Ready Nation project. Weather experts from across the United States have been working to improve the way the country reacts to extreme weather. They say scientific progress has made weather forecasts, or predictions, better than ever. But, they say the cost of severe weather on life and property is still too high.
NOAA says a new generation of equipment has already made its global numerical weather prediction system nearly three times faster in the past seven months. This is expected to improve NOAA’s forecast models.
Scientists and weather experts have launched a similar effort in the Philippines. It is called Project NOAH -- the Nationwide Operational Assessment2 of Hazards.
Mahar Lagmay is the head of Project NOAH. He says his country needs high-resolution imaging to predict when and where natural disasters will strike.
“To be able to construct hazard maps you need very high resolution topography. To do the simulations of floods you do need high resolution topography.”
A surfer rides a wave whipped up by Tropical Storm Isaac at Haulover Beach Park in Miami Beach, Florida.
He also says these images will be used to create smaller area maps, which will shape how people react to natural disasters.
“By doing local scale, or community scale maps, people can relate with the problem because they see their houses, they see their neighbor’s houses, the bridge in their community, the river in their community in relation to the hazards - the flood hazards in particular.”
Geologist3 Carlos Primo David also works with Project NOAH. He says the group depends on satellites, Doppler radar4 and hundreds of rain gauges5 across the country. He says the resulting forecasts are very detailed6, and can even predict the intensity7 of rainfall.
The Philippine state weather agency used rainfall information from Project NOAH when Manila flooded in August. The weather agency also re-broadcast its warnings on the social networking website Twitter. And a color coded warning system was also put in place.
Mahar Lagmay says the project passed its first test. He says the government used the information to move people to safety.
“Relatively it was successful because what we wanted to avoid was mass death.”
He says now the government has to get people to take severe weather events more seriously, and to actively8 prepare for the worst.
1 atmospheric | |
adj.大气的,空气的;大气层的;大气所引起的 | |
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2 assessment | |
n.评价;评估;对财产的估价,被估定的金额 | |
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3 geologist | |
n.地质学家 | |
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4 radar | |
n.雷达,无线电探测器 | |
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5 gauges | |
n.规格( gauge的名词复数 );厚度;宽度;标准尺寸v.(用仪器)测量( gauge的第三人称单数 );估计;计量;划分 | |
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6 detailed | |
adj.详细的,详尽的,极注意细节的,完全的 | |
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7 intensity | |
n.强烈,剧烈;强度;烈度 | |
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8 actively | |
adv.积极地,勤奋地 | |
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