Tuesday, January 22nd, 2019
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
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
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
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
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
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
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
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
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
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
