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Lightning mapper beams back first views from space

A sensitive infrared camera mounted on NOAA’s new GOES-16 weather satellite has captured its first astounding images of lightning flashes from a perch more than 22,000 miles (nearly 36,000 kilometers) out in space.

The first-of-its-kind imager can detect in-cloud, cloud-to-cloud and cloud-to-ground lightning strikes, giving weather forecasters an inventory of the location, frequency and intensity of lightning activity that could help warn the public of severe storms.

A video released Monday by NOAA shows a 30-second view of lightning activity in a severe storm complex Feb. 14 over southeast Texas. The green cross indicates the location of Houston, and the green lines illustrate the Gulf Coast.

The lightning flashes are overlaid on an image from GOES-16’s primary camera, the Advanced Baseline Imager, which produces high-resolution infrared and visible pictures of cloud movements, storm tracks, tropical cyclones and smoke plumes.

GOES-16 is the first geostationary weather satellite to carry such an instrument, which is sensitive to lightning flashes day and night. Research satellites in lower orbits have flown with lightning cameras, and a lightning sensor launched to the International Space Station last month, but those detectors do not have the wide coverage of a high-altitude geostationary observatory.

This image shows lightning data captured on Feb. 14 over the course of an hour and displayed over an image of the Western Hemisphere from the Advanced Baseline Imager on GOES-16. Brighter colors indicate more lightning energy was recorded; color bar units are the calculated kilowatt-hours of total optical emissions from lightning. The brightest storm system is located over the Gulf Coast of Texas, the same storm system in the accompanying video. Credit: NOAA

NOAA says the lightning mapper on GOES-16, and aboard follow-on GOES satellites, will deliver data to weather forecasters within 20 seconds, offering near real-time snapshots of severe storm activity, often outpacing the availability of conventional satellite and radar imagery. The lightning instrument collects observations at 500 frames per second, distinguishing the location, intensity and horizontal propagation of individual strokes within each lightning flash, according to NOAA.

Lightning data currently incorporated into weather imagery and forecasts usually comes from ground-based detection networks.

GOES-16 launched on Nov. 19 from Cape Canaveral on-board a United Launch Alliance Atlas 5 rocket. Lockheed Martin manufactured the weather satellite — the first in a new generation of NOAA weather sentinels — and the Geostationary Lightning Mapper.

NOAA says GOES-16 will enter service by November after completing calibration and commissioning. The weather agency will announce in May whether GOES-16 will be stationed over the Pacific Ocean or the Atlantic Ocean.

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Follow Stephen Clark on Twitter: @StephenClark1.

Source: Space Flight

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Lightning mapper beams back first views from space

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