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Tracking lightning from Space: How satellites keep you safe during thunderstorms?

16 July 2018

Lightning strikes, giant sparks of electricity in Earth's atmosphere that are hotter than the surface of the sun, are a major hazard during thunderstorms. Knowing when and where lightning is occurring can tell us a lot about a storm - including its location, whether it's intensifying, and if the storm is capable of producing severe weather.

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India's deadly Monsoon Rainfall measured with NASA's IMERG

16 July 2018

India's southwest monsoon normally occurs between June and September and is known for being a summertime rainy season.

This year's monsoon has been assessed as average but India's Meteorological Department statistics show that daily mean rainfall for the country has recently been above normal. At least 15 people were killed by floods and landslides in India on Wednesday, 11July 2018. So far this year, close to 200 deaths may have resulted from India's heavy monsoon rainfall.

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It’s all go in summer for Greenland’s glaciers

13 July 2018

The Copernicus Sentinel-1 mission has revealed that, on average, Greenland's glaciers are now flowing more slowly into the Arctic Ocean. While glacial flow may have slowed overall, in summer glaciers flow 25% faster than they do in the winter.

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Help NASA track and predict mosquito-borne disease outbreaks

02 July 2018

Picnics, parades and fireworks are the attributes of a grand July Fourth celebration. So are the itch and scratch of mosquito bites. While the bites are annoying, they don't tend to stop the festivities. However, certain types of mosquitoes can cause serious harm. They are known to carry and spread diseases like Zika, West Nile Virus and malaria.

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Four other things ECOSTRESS can see

28 June 2018

NASA's Ecosystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS) is designed to study how plants respond to heat and water stress by measuring the temperature of Earth's vegetation at all times of day with an accuracy of a few tenths of a degree.

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Earth’s squishy interior gives rapid rise to Antarctica

22 June 2018

Parts of Earth's crust are rising very slowly owing to post-glacial rebound, but using GPS, researchers have found that West Antarctica is rising faster than almost anywhere else in the world. And, ESA's GOCE gravity mission has, in turn, helped them to understand that the mantle below is unusually fluid.

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Copernicus Sentinels work together to monitor wildfires

15 June 2018

Dry, warm weather has sparked wildfires over Siberia this spring. After a limited surge in April, the countryside has lit up majorly in May. But why is this happening and how can the Sentinel satellites help?

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Copernicus Sentinel-2 leads precision farming into new era

14 June 2018

The European Union's Copernicus Sentinel-2 satellites are supplying unprecedented views of Earth, mainly providing information for agricultural and forestry practices and helping to manage food security. But how are they making a difference to farmers in particular?

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Ramp-Up in Antarctic Ice loss speeds sea Level rise

13 June 2018

Ice losses from Antarctica have tripled since 2012, increasing global sea levels by 0.12 inch (3 millimeters) in that timeframe alone, according to a major new international climate assessment funded by NASA and ESA (European Space Agency).

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Antarctica hikes up sea_level

13 June 2018

In a major collaborative effort, scientists from around the world have used information from satellites to reveal that ice melting in Antarctica has not only raised sea levels by 7.6 mm since 1992, but, critically, almost half of this rise has occurred in the last five years.

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Aeolus: Wind satellite weathers technical storm

09 June 2018

They say there is no gain without pain, but when the European Space Agency (Esa) set out in 2002 to develop its Aeolus satellite, no-one could have imagined the grief the project would bring.

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UNOSAT supports disaster risk reduction in Djibouti after Tropical Cyclone Sagar

08 June 2018

A tropical cyclone formed in the Gulf of Aden between Yemen and northern Somalia on 16 May. On 19 May 2018, Tropical Cyclone Sagar-18 made landfall in Djibouti causing heavy rains and flash floods to surge in Djibouti city and Balbala suburb.

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Warm water creeps into otherwise calm central Pacific

06 June 2018

After a mild La Niña late last year, temperatures, convection and rainfall rates in the equatorial Pacific Ocean returned to normal by early April of this year. An 09 April image of sea level height from the U.S./European Jason-3 satellite mission showed most of the ocean at neutral heights. But by the beginning of May, high sea levels began to build up in the Central Pacific. In the tropics, high sea levels are usually caused by a layer of warm water at or below the surface.

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UNH researchers shine a light on more accurate ways to estimate climate change

05 June 2018

It doesn't matter if it's a forest, a soybean field, or a prairie, all plants take up carbon dioxide during photosynthesis – the process where they use sunlight to convert water and carbon dioxide into food. During this changeover, the plants emit an energy "glow" that is not visible to the human eye, but can be detected by satellites in space.

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New algorithm fuses quality and quantity in satellite imagery

04 June 2018

Using a new algorithm, University of Illinois researchers may have found the solution to an age-old dilemma plaguing satellite imagery – whether to sacrifice high spatial resolution in the interest of generating images more frequently, or vice versa. The team's new tool eliminates this trade-off by fusing high-resolution and high-frequency satellite data into one integrated product, and can generate 30-meter daily continuous images going back to the year 2000.

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NASA Soil moisture data advances Global crop forecasts

01 June 2018

Data from the first NASA satellite mission dedicated to measuring the water content of soils is now being used operationally by the U.S. Department of Agriculture to monitor global croplands and make commodity forecasts.

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Sentinel-5P monitors volcanic emissions

29 May 2018

Hawaii's Kīlauea volcano has erupted again, causing an extensive explosion of sulphur dioxide and ash that could pose a risk to people's health and to aviation.

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Sentinel-1 warns of refugee island flood risk

29 May 2018

In what the UN describes as the world's fastest growing refugee crisis, almost 700,000 Rohingya Muslims have fled Myanmar for neighbouring Bangladesh since August 2017. With the Bangladesh government proposing a vulnerable low-lying island as a relocation site for thousands, Sentinel-1 data have shown how unsuitable this site would be.

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Inequality in India can be seen from outer space

27 May 2018

Are night lights on earth captured by satellites from outer space a good way to measure inequality?

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Climate change may lead to bigger atmospheric rivers

24 May 2018

A new study shows that climate change is likely to intensify extreme weather events known as atmospheric rivers across most of the globe by the end of this century, while slightly reducing their number.

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