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Tuesday, January 22nd, 2019

Uruguay River Wetlands

The Copernicus Sentinel-2B satellite collected this image of the lower reaches of the brown, sediment-rich Uruguay River where the river forms the border between Argentina and Uruguay, and is the site of the Esteros de Farrapos e Islas del Río Uruguay wetlands. Composed of lagoons, swamps and 24 islets, the Esteros are a haven for

Tuesday, January 15th, 2019

Long-Term Ag Change Impacts Stream Water Quality

In the early 1990s, Acton Lake in southwestern Ohio had a muddy problem. Large amounts of sediment from nearby farms were entering the lake’s watershed. These sediments traveled through streams draining the landscape and were filling up the lake. So the USDA gave local farmers incentives to change some of their farming practices. One of

Tuesday, January 8th, 2019

Oblique Perspective View of Mars’ Korolev Crater

This image from ESA’s Mars Express shows Korolev crater, an 82-kilometer-across feature found in the northern lowlands of Mars. This oblique perspective view was generated using a digital terrain model and Mars Express data. The crater itself is centred at 165° E, 73° N on the martian surface. The image has a resolution of roughly

Monday, December 17th, 2018

Visualizing Hydrocarbon Gases Helps Prevent Venting to the Atmosphere

Infrared (IR) thermal imaging cameras have been used for decades for a variety of oil and gas applications, including electrical/mechanical inspections, tank level inspections, and even examinations of pipe integrity within process equipment. In recent years, new optical gas imaging (OGI) technology has been developed that can “see” hydrocarbon gases and volatile organic compounds (VOCs)

Tuesday, December 11th, 2018

Jamestown Rediscovery Foundation Using Ground-Penetrating Radar

GSSI, a manufacturer of ground-penetrating radar (GPR) equipment, is continuing its partnership with the Jamestown Rediscovery Foundation. GSSI archaeologists Dan Welch and Peter Leach brought new GPR equipment to remotely sense what lies beneath Jamestown. Jamestown—known for being the first permanent English settlement in the New World—will be commemorating in 2019 the 400th anniversary of

Tuesday, December 4th, 2018

Global Warming Increases Frost Damage on Trees in Central Europe

According to a new Finnish-Chinese study reported in Global Change Biology, global warming increases frost damage on trees in large areas of Central Europe. Late frost damages are economically important in agriculture and forestry. In certain years, they are known to have caused losses amounting to hundreds of millions of euros. Climate change and increasing

Tuesday, November 27th, 2018

NASA Mobilizes to Aid California Fires Response

For the past two weeks, NASA scientists and satellite data analysts have been working every day producing maps and damage assessments that can be used by disaster managers battling the Woolsey Fire near Los Angeles and the Camp Fire in Northern California. The agency-wide effort also deployed a research aircraft over the Woolsey Fire on

Tuesday, November 20th, 2018

California Fires Spew Aerosols Into Already Saturated Sky

Although most people might think smoke rises and then clears after a fire has been extinguished, the opposite is actually true. New research using data collected during NASA airborne science campaigns shows how smoke from wildfires worldwide could impact the atmosphere and climate much more than previously thought. The study, led by researchers at the

Monday, November 12th, 2018

Massive Antarctic Iceberg Spotted on NASA IceBridge Flight

On Nov. 7, 2018, NASA’s Operation IceBridge flew over an iceberg three times the size of Manhattan—the first time anyone has laid eyes on the giant iceberg, dubbed B-46 by the U.S. National Ice Center, that broke off from Pine Island Glacier in late October. As NASA’s DC-8 flew its predetermined flight pattern, the new

Tuesday, November 6th, 2018

Ozone Hole Modest Despite Optimum Conditions for Ozone Depletion

The ozone hole that forms over the Antarctic each September is primarily driven by two factors: the amount of ozone-destroying chlorine in the polar stratosphere and the availability of ice crystals in stratospheric clouds for the chlorine to bind to. This year, the super-cold stratospheric temperatures measured by NOAA and NASA meant conditions were ripe

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