Sep 25 2018

From The Space Library

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Current revision

RELEASE 18-080 New Airborne Campaigns to Explore Snowstorms, River Deltas, Climate

Five new NASA Earth science campaigns will take to the field starting in 2020 to investigate a range of pressing research questions, from what drives intense East Coast snowfall events to the impact of small-scale ocean currents on global climate.

These studies will explore important, but not-well-understood, aspects of Earth system processes and were competitively selected as part of NASA’s Earth Venture-class program. This is NASA’s third series of Earth Venture suborbital investigations, which are regularly solicited, sustained observation projects first recommended by the National Research Council in 2007. The first set of five projects was selected in 2010, and the second in 2014.

"These innovative investigations tackle difficult scientific questions that require detailed, targeted field observations combined with data collected by our fleet of Earth-observing satellites," said Jack Kaye, associate director for research in NASA's Earth Science Division in Washington.

The five newly selected Earth Venture investigations are:

• Intense snowfall events – Lynn McMurdie of the University of Washington will lead the Investigation of Microphysics and Precipitation for Atlantic Coast-Threatening Snowstorms project to study the formation of snow bands in East Coast winter storms. Better understanding of the mechanisms of snow band formation and the factors that influence the location of the most intense snowfall will help improve forecasts of these extreme weather events. This study will involve flights of NASA’s ER-2 and P-3B research aircraft over the northeastern United States.
• Aerosols changing clouds – Armin Sorooshian of the University of Arizona will lead the Aerosol Cloud Meteorology Interactions over the Western Atlantic Experiment to identify how aerosol particles change cloud properties in ways that affect Earth’s climate system. The investigation will focus on marine boundary layer clouds over the western North Atlantic Ocean that have a critical role in our planet’s energy balance. Two NASA research aircraft, an HU-25 Falcon and a B-200 King Air, will fly from NASA’s Langley Research Center in Hampton, Virginia, to gather measurements from above, below, and within.
• River deltas and sea level rise – Marc Simard of NASA’s Jet Propulsion Laboratory in Pasadena, California, will lead the Delta-X investigation to better understand the natural processes that maintain and build land in major river deltas threatened by rising seas. The project will improve models that predict loss of coastal land from sea level rise by improving estimates of how deltas add land—a process that involves trapping sediments and creating organic soils as plants grow. Delta-X will focus on the Mississippi River Delta using instruments on three NASA research aircraft.
• Impact of strong storms on stratosphere – Kenneth Bowman of Texas A&M University will lead the Dynamics and Chemistry of the Summer Stratosphere project to investigate how strong summertime convective storms over North America can change the chemistry of the stratosphere. These storms regularly penetrate deep into the lower stratosphere, carrying pollutants that can change the chemical composition of this atmospheric layer, including ozone levels. Flights of NASA’s ER-2 high-altitude aircraft will be based in Salina, Kansas.
• Ocean heating of the atmosphere – Thomas Farrar of Woods Hole Oceanographic Institute will lead the Submesoscale Ocean Dynamics and Vertical Transport investigation to explore the potentially large influence that small-scale ocean eddies have on the exchange of heat between the ocean and the atmosphere. The project will collect a benchmark data set of climate and biological variables in the upper ocean that influence this exchange. Measurements will be collected by research aircraft and shipborne instruments 200 miles off the coast of San Francisco.

A total of six NASA centers and 27 educational institutions are participating in these five Earth Venture projects. The five-year investigations were selected from 30 proposals. The Delta-X project is funded at a total cost of no more than $15 million; each of the other projects is funded at no more than $30 million.

Earth Venture investigations are part of NASA's Earth System Science Pathfinder program, managed at Langley for the agency’s Science Mission Directorate in Washington. Competitively selected orbital missions and field campaigns in this program provide innovative approaches to address Earth science research with frequent windows of opportunity to accommodate new scientific priorities.

NASA uses the vantage point of space to understand and explore our home planet, improve lives and safeguard our future. The agency’s observations of Earth’s complex natural environment are critical to understanding how our planet’s natural resources and climate are changing now and could change in the future.

CONTRACT RELEASE C18-029 NASA Extends Chandra Operations, Science Support Contract

NASA has awarded a contract extension to the Smithsonian Astrophysical Observatory (SAO) in Cambridge, Massachusetts, to continue operations and science support for the agency's Chandra X-ray Observatory.

The contract extends the agreement between NASA and SAO through Sept. 30, 2024, followed by two three-year options that would extend the contract through Sept. 30, 2030. The total potential value of the contract extension is $563.5 million.

This contract covers continued operation of the Chandra X-ray Center (CXC) in Cambridge, which conducts key aspects of Chandra's observation, operations and research program. Core functions of the CXC include system engineering, ground system development and maintenance, mission operations, science and operations planning, science research and dissemination, and outreach support.

Since its launch on July 23, 1999, Chandra has been NASA's flagship mission for X-ray astronomy and is among NASA's fleet of Great Observatories. The agency’s Marshall Space Flight Center in Huntsville, Alabama, manages the Chandra program for the agency's Science Mission Directorate in Washington.

MEDIA ADVISORY M18-143 NASA Administrator Talks Training, Future Missions with Newest Astronaut Class

NASA’s newest class of astronaut trainees will join agency Administrator Jim Bridenstine Thursday, Sept. 27, to talk about their experiences in the training program, hopes for future missions, and more, in a live episode of Watch This Space. The one-hour program will air at 10 a.m. EDT on NASA Television and the agency’s website.

Astronaut candidates Zena Cardman, Jasmin Moghbeli, Jonny Kim, Frank Rubio, Matthew Dominick, Warren Hoburg, Kayla Barron, Bob Hines, Raja Chari, Loral O' Hara and Jessica Watkins will be joined by Canadian Space Agency astronaut candidates Joshua Kutryk and Jenni Sidey-Gibbons. They will take questions from the audience at NASA Headquarters and from the public, using #AskNASA on social media.

The first U.S. astronauts, the “Original Seven,” were selected in 1959. Since then, NASA has selected 21 more groups of astronauts. This latest class, announced on June 7, 2017, includes a physician, biologist, geologist, military pilots and engineers.

Once their training is complete, they may be assigned to any of a variety of missions, including: performing research on the International Space Station, launching from American soil on spacecraft built by U.S. commercial companies, and departing for deep space missions on NASA’s new Orion spacecraft and Space Launch System rocket.