Month: March 2017

New capabilities on NOAA satellite help predict lightning strikes

New capabilities on NOAA satellite help predict lightning strikes

via Watts Up With That?http://ift.tt/1Viafi3

From NASA/GODDARD SPACE FLIGHT CENTER

Flashy first images arrive from NOAA’s GOES-16 lightning mapper

Detecting and predicting lightning just got a lot easier. The first images from a new instrument onboard NOAA’s GOES-16 satellite are giving NOAA National Weather Service forecasters richer information about lightning that will help them alert the public to dangerous weather.

This is one hour of GOES-16’s Geostationary Lightning Mapper (GLM) lightning data from Feb. 14, when GLM acquired 1.8 million images of the Earth. It is displayed over GOES-16 ABI full disk Band 2 imagery. 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. This is preliminary, non-operational data. Credits: NOAA/NASA

The first lightning detector in a geostationary orbit, the Geostationary Lightning Mapper (GLM), is transmitting data never before available to forecasters. The mapper continually looks for lightning flashes in the Western Hemisphere, so forecasters know when a storm is forming, intensifying and becoming more dangerous. Rapid increases of lightning are a signal that a storm is strengthening quickly and could produce severe weather.

During heavy rain, GLM data will show when thunderstorms are stalled or if they are gathering strength. When combined with radar and other satellite data, GLM data may help forecasters anticipate severe weather and issue flood and flash flood warnings sooner. In dry areas, especially in the western United States, information from the instrument will help forecasters, and ultimately firefighters, identify areas prone to wildfires sparked by lightning.

Accurate tracking of lightning and thunderstorms over the oceans, too distant for land-based radar and sometimes difficult to see with satellites, will support safe navigation for aviators and mariners.

The new mapper also detects in-cloud lightning, which often occurs five to 10 minutes or more before potentially deadly cloud-to-ground strikes. This means more precious time for forecasters to alert those involved in outdoor activities of the developing threat.

NASA successfully launched GOES-R at 6:42 p.m. EST on November 19, 2016 from Cape Canaveral Air Force Station in Florida and it was renamed GOES-16 when it achieved orbit. GOES-16 is now observing the planet from an equatorial view approximately 22,300 miles above the surface of the Earth.

NOAA’s satellites are the backbone of its life-saving weather forecasts. GOES-16 will build upon and extend the more than 40-year legacy of satellite observations from NOAA that the American public has come to rely upon.

Learn more about GOES-16 and all its exciting possibilities for weather forecasting improvements by visiting the GOES-16 website.

For more information about GOES-16, visit: http://www.goes-r.gov/ or http://ift.tt/2mfhOJM

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Disclaimer: AAAS and EurekAlert! are not responsibl

via Watts Up With That? http://ift.tt/1Viafi3

March 7, 2017 at 05:04AM

The EPA’s Air Pollution Scare Is Just Another Fake News Myth

The EPA’s Air Pollution Scare Is Just Another Fake News Myth

via Climate Change Dispatchhttp://climatechangedispatch.com

More fake news from the Washington Post: turns out that the Environmental Protection Agency (EPA) has helped save Americans from a substance which kills 4.2 million people every year – air pollution. No really. If you believe WaPo it’s the fifth deadliest killer known to man: The researchers concluded that exposure to particulate pollution was the […]

via Climate Change Dispatch http://ift.tt/2jXMFWN

March 7, 2017 at 05:01AM

Winter Snow Extent Continues Rising Trend

Winter Snow Extent Continues Rising Trend

via NOT A LOT OF PEOPLE KNOW THAThttps://notalotofpeopleknowthat.wordpress.com

By Paul Homewood

 

nhland_season1

http://ift.tt/MiXcLo

 

 

Hottest year update!

 

NH snow cover this winter has been well above average, ranking 9th highest since 1967.

via NOT A LOT OF PEOPLE KNOW THAT http://ift.tt/16C5B6P

March 7, 2017 at 04:54AM

UAH Version 6 Dataset Paper Published Online

UAH Version 6 Dataset Paper Published Online

via Roy Spencer, PhD.http://ift.tt/1o1jAbd

At long last, our Version 6 dataset paper has been published, with the online version available as of today:

UAH Version 6 Global Satellite Temperature Products: Methodology and Results

We have been working with NCEI (old NCDC) to get the dataset and code archived there (contrary to some claims, our Version 5.6 dataset and code have been archived there for years). This takes time as NCEI has procedures, review meetings, etc., before they can host a dataset and code.

(I can download the PDF…maybe someone can tell me if it’s publicly available, too.)

via Roy Spencer, PhD. http://ift.tt/1o1jAbd

March 7, 2017 at 04:30AM