Lights off at Michael's awakening
Lights off at Michael's awakening
After touching earth As a Category 4 storm on October 10, 2018, Hurricane Michael left at least 2.5 million customers without power in the southeastern United States, according to the Edison Electric Institute. These images of night lights in Florida, Georgia and Alabama come from Suomi NPP Satellite and were acquired on October 6 and October 12, 2018.
The first set of images (above) shows a natural view of the night lights from "day-night band"(DNB) of the Radiometer visible for infrared images (VIIRS). The DNB detects light in a range of wavelengths from green to near-infrared, and uses filtering techniques to observe signals such as city lights, auroras, forest fires and reflected moonlight.
The second pair of images is a data visualization of where the lights went off in the city of Panama, Florida. A team of scientists at NASA's Goddard Space Flight Center processed and corrected the raw data to filter out lost light from the Moon, fires, aerial brightness and any other source other than electric light. Its processing techniques also eliminated other atmospheric interferences, such as dust, haze and thin clouds. The images show the conditions on October 6 and October 12, 2018.
To make VIIRS data more useful to first responders, the Goddard team scaled observations into a base map that emphasizes street and neighborhood locations. The base map makes use of the data collected by the Landsat and Sentinel-2 satellites. It also incorporates high resolution data of OpenStreetMap To show the precise locations of streets and neighborhoods.
On October 10, October 11 through October 11, Hurricane Michael knocked out power and telecommunications in Florida, Georgia, North Carolina and Virginia. By the morning of October 15, news sources and utilities reported that the number of customers without electricity had been reduced to approximately 240,000, mainly in Florida. An estimated 35,000 workers in the electric power industry in 27 states and Canada were helping with the recovery effort. It is expected that power outages in some areas last from weeks to months because some power grids must be completely rebuilt.
Editor's Note: The images and maps on this page reflect conditions as of October 12, 2018, which have improved in many places since then. High definition data visualization maps are experimental and designed to make it easier to monitor power outages on a neighborhood scale. They should not be used to monitor power outages in buildings, houses or individual roads. For more information, see the NASA disaster program website.
Images from the NASA Earth Observatory by Joshua Stevens, using data from the VIIRS day-night band Suomi National Polar-orbiting Partnership and data from VIIRS Black Marble HD courtesy of Miguel Román and Ranjay Shrestha, NASA / GSFC. History of Mike Carlowicz.
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