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Earth Expeditions

    SnowEx: Little Blogs from the Prairie – Part 1

    SnowEx researchers Andrew Mullen, Eric Sproles, Caitlin Mitchell, and Ross Palomaki finishing up a snow pit profile. Notice how the snow goes from 3 feet deep to almost nothing over relatively short distances.

    Like so many other things, NASA's SnowEx 2021 looks a little different than usual this year. But one thing is business as usual, and that's the participation of undergraduate and graduate students. Students play a pivotal role in SnowEx, from suiting up for data collection to crunching the numbers afterward. The field sites become a …

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    Delta-X Field Stories: Traversing the Marshes

    Scientists gather field samples and data from a marsh in coastal Louisiana

    By Elena Solohin, Florida International University /NEW ORLEANS, LOUISIANA/ My colleague, Emily, and I, with Florida International University's Wetland Ecosystems Research Lab, kicked off our 2021 field season with a trip to the Mississippi River Delta to conduct research for NASA's Delta-X project. We met up with a team of scientists from Louisiana State University …

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    Delta-X Field Stories: Measuring Water and Sediment in the Delta

    Alligator spotted by Delta-X field team in coastal Louisiana.

    By John Mallard and Tamlin Pavelsky, University of North Carolina /NEW ORLEANS, LOUISIANA/ Cruising through a bayou during recent fieldwork in the Mississippi River Delta, our boat driver casually pointed out an alligator and zoomed on by without slowing. After seeing us scramble to get out our phones to take a picture, though, he realized …

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    Delta-X Field Stories: Collecting “Marsh Popsicles”

    LSU team (Andre, Brandon, Amanda) measuring accretion at their feldspar marker horizon station in coastal Louisiana for NASA's Delta-X

    By Amanda Fontenot, Louisiana State University /NEW ORLEANS, LOUISIANA/ Although most of my work happens in the lab, office, or home, field days are some of the most important days of the year for my research. "Going to the field" is when we get to physically visit the wetlands that we spend so much …

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    Lightspeed: A Marvelous Method for Measuring Mountain Snow

    The field site at Cameron Pass, Colorado.

    By Dan McGrath and Randall Bonnell, Colorado State University /CAMERON PASS, COLORADO/ The word lightspeed conjures different images for different people. Star Wars fans may connect lightspeed to the Millennium Falcon, while radar scientists may think of the velocity of electromagnetic energy. Radio waves, a form of electromagnetic energy, travel at "lightspeed" through a vacuum, …

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    CAMP2Ex Team Mourns Passing of Senior Climate Researcher

    Gemma Narisma boarding NASA's P-3 research aircraft during the 2019 CAMP2Ex deployment in the Phillipines. Credit: NASA

    By Katy Mersmann, NASA We're so saddened by the loss of our teammate Dr. Gemma Teresa Narisma. She was a passionate climate researcher and the Philippine lead for the Cloud, Aerosol, and Monsoon Processes Philippines Experiment (CAMP2Ex). As the director of the Manila Observatory and a professor at Ateneo de Manila University, she not only …

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    SnowEx Scientist Finds her Love of Snow Science on the Slopes

    This dynamic environment of snow cover and texture outside of Cooke City, Montana, January 2021 is also a water reservoir for nearby communities.

    By Gabrielle Antonioli, Montana State University /BOISE, IDAHO/ Being a snow scientist is an interesting career. Growing up in a small town in Montana, I was immersed in snow. But I saw it as one set thing—a blanket, unmoving, a cold, white mass. Only far later in life did I learn what a changing and …

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    ACTIVATE Begins Year Two of Marine Cloud Study

    By Joe Atkinson / NASA'S LANGLEY RESEARCH CENTER, HAMPTON, VIRGINIA/ A NASA airborne study has returned to the field for a second year of science flights to advance the accuracy of short- and long-term climate models. The Aerosol Cloud meTeorology Interactions oVer the western ATlantic Experiment (ACTIVATE) began the third of six planned flight campaigns …

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    Pandemic Delays, But Doesn’t Slow, Ice Melt Research in Greenland

    By Lara Streiff Despite racing against impending harsh weather conditions, a red and white World War II aircraft flew slowly and steadily over the icy waters surrounding Greenland in August and September. Three weeks delayed by pandemic restrictions, scientists from NASA's Jet Propulsion Laboratory inside this retrofitted DC-3 plane started dropping hundreds of probes as …

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    ACTIVATE Makes a Careful Return to Flight

    By Joe Atkinson / NASA's Langley Research Center, Hampton, Virginia/ Four months ago, with COVID-19 disrupting life across the globe, it seemed virtually unthinkable that a major NASA airborne science campaign would fly again anytime soon. But today, that's exactly what's happening. In August, NASA's Aerosol Cloud Meteorology Interactions Over the Western Atlantic Experiment (ACTIVATE) eased …

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