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Fri 22 Mar 2019 03:13:PM
The Air Force Wounded Warrior Program, or AFW2, is proud to announce the 2019 Air Force Warrior Games team. A team of coaches and staff selected 40 primary and ten alternates at the 6th Annual Air Force Trials at Nellis Air Force Base, Nevada, March 7th. The 40-person team will go on to compete at the Department of Defense Warrior Games in Tampa, Florida, June 21-30.  Source: AFW2 announces 2019 Warrior Games team
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Fri 22 Mar 2019 02:23:PM
This week's photos feature Airmen from around the globe involved in activities supporting expeditionary operations and defending America. This weekly feature showcases the men and women of the Air Force.  Source: AF Week in Photos
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Thu 21 Mar 2019 10:16:PM
When it comes to symbolizing the influx of women in the workforce and the wave of patriotism and feminism that surge sparked during World War II, few American icons are more recognizable than “Rosie the Riveter.” Artist J. Howard Miller’s 1942 poster, featuring a bandanna-donning, blue-collared woman with the famed flex beneath the rally cry, “We Can Do It!” grew over time to represent millions of women who stepped up to fill various stateside labor-intensive jobs once held by men, now tapped to fight German and Japanese forces.  Source: World War II laborer champions ‘Rosie the Riveter’ legacy at Pentagon, Capitol Hill
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Thu 21 Mar 2019 05:57:PM
Abstract: Here we describe the Primitive Object Volatile Explorer (PrOVE), a smallsat mission concept to study the surface structure and volatile inventory of comets in their perihelion passage phase when volatile activity is near peak. CubeSat infrastructure imposes limits on propulsion systems, which are compounded by sensitivity to the spacecraft disposal state from the launch platform and potential launch delays. We propose circumventing launch platform complications by using waypoints in space to ... Source: Overview of Primitive Object Volatile Explorer (PrOVE) CubeSat or Smallsat Concept
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Thu 21 Mar 2019 05:25:PM
Abstract: Health impact analyses are increasingly tapping the broad spatial coverage of satellite aerosol optical depth (AOD) products to estimate human exposure to fine particulate matter (PM2.5). We use a forward geophysical approach to derive ground-level PM2.5 distributions from satellite AOD at 1 km2(exp) resolution for 2011 over the northeastern US by applying relationships between surface PM2.5 and column AOD (calculated offline from speciated mass distributions) from a regional air quality mode... Source: Assessing Uncertainties of a Geophy...Satellite-Observed Aerosol Optical Depth
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Thu 21 Mar 2019 05:18:PM
Abstract: The InSight Mars Lander successfully landed on the surface on November 26, 2018. This poster will describe the methodologies and margins used in developing the aerothermal environments for design of the thermal protection systems (TPS), as well as a prediction of as-flown environments based on the best estimated trajectory. The InSight mission spacecraft design approach included the effects of radiant heat flux to the aft body from the wake for the first time on a US Mars Mission, due to over... Source: InSight's Reconstructed Aerothermal Environments
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Thu 21 Mar 2019 05:11:PM
Abstract: NASA is anticipated to commission the next Planetary Science Decadal Survey (PSDS) with preparation expected in early calendar year 2020. The new PSDS will outline the priorities of science missions for the decade spanning 2023-2032. For the previous PSDS, the science and technology communities have been invited to submit white papers to the PSDS sub-panels as background information to guide the PSDS recommendations. The National Research Council has previously stated that white papers that r... Source: White Papers for the Next Decadal Survey: Thermal Protection Systems and Instrumentation
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Thu 21 Mar 2019 04:57:PM
Abstract: Mars Science Laboratory Curiosity rover observations of the 2018/Mars year 34 global/planet-encircling dust storm represent the first in situ measurements of a global dust storm with dedicated meteorological sensors since the Viking Landers. The Mars Science Laboratory team planned and executed a science campaign lasting approximately 100 Martian sols to study the storm involving an enhanced cadence of environmental monitoring using the rover's meteorological sensors, cameras, and spectromete... Source: Mars Science Laboratory Observations of the 2018/Mars Year 34 Global Dust Storm
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Thu 21 Mar 2019 03:46:PM
Abstract: Background (what): SI (International System of Units)-traceable Microwave Radiometer calibration; Motivation (why): NWP (Numerical Weather Prediction), FCDR (Fundamental Climate Data Record); Technology (how): NIST (National Inst. of Standards and Technology) blackbody target for ; Standards: Status & Future Plans. Development of a National Standard for Microwave Brightness Temperature (TB) at NIST. Source: SI-Traceable Calibration of Satellite Microwave Radiometers
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Thu 21 Mar 2019 03:25:PM
Abstract: This work describes multi-site optical polarimetric observations of several radio-loud Narrow Line Seyfert 1 galaxies. This source class, and the sources in this study, were discovered to be detectable at gamma-ray energies by the Large Area Telescope (LAT) aboard the Fermi satellite. GSFC has played a key role in the development, launch, and operation of Fermi/LAT. Source: Optical Polarisation Variability of...Long Rotations of the Polarisation Plane
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Thu 21 Mar 2019 03:15:PM
Sharp eyesight is key to an Airman’s readiness to fly, fight and win. Using state of the art medical technology, the War Fighter Eye Center at Joint Base Andrews, Maryland, ensures readiness, enhancing healthy vision and offering cutting edge techniques for better eyesight. Source: Air Force Tech Report: Seeing the future in 20/20
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Thu 21 Mar 2019 03:08:PM
Abstract: We compare results from a preliminary analysis of two years of ARTEMIS magnetopause boundary crossings at lunar distances with available empirical models. We remove the effects of variable solar wind flow directions and aberration angles to study the magnetotail cross-section as a function of solar wind conditions. The average magnetopause distance from the central axis is 26 RE, but this distance ranges from 10 RE for high solar wind dynamic pressures and strong northward IMF orientations to... Source: Magnetotail Boundary Crossings at Lunar Distances: ARTEMIS Observations
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Thu 21 Mar 2019 03:03:PM
Abstract: Recent technology advances in miniature microwave radiometers that can be hosted on very small satellites has made possible a new class of affordable constellation missions that provide very high revisit rates of tropical cyclones and other severe weather. The Time-Resolved Observations of Precipitation structure and storm Intensity with a Constellation of Smallsats (TROPICS) mission was selected by NASA as part of the Earth Venture-Instrument (EVI-3)program and is now in development with pla... Source: Overview of the NASA TROPICS CubeSat Constellation Mission
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Thu 21 Mar 2019 01:49:PM
Abstract: Data quality looks better than Suomi-NPP (Suomi National Polar-orbiting Partnership): similar biases. Smaller standard deviation of first guess departures and diagnosed observation errors. Weaker striping signal than Suomi-NPP ATMS (Advanced Technology Microwave Sounder). Improved first guess fits to: temperature observations (AMSU-A (Advanced Microwave Sounding Unit-A), CrIS (Cross-track Infrared Sounder), GPSRO (Global Positioning System Radio Occultation)); Humidity observations (MHS (Micr... Source: NOAA-20 ATMS Status
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Thu 21 Mar 2019 12:19:PM
Abstract: Understanding the effects of coronal mass ejections (CMEs) requires knowing if and when they will impact and their properties upon impact. Of particular importance is the strength of a CME's southward magnetic field component (Bz ). Kay et al. (2013, https://doi:10.1088/0004-637X/775/1/5, 2015, https://doi:10.1088/948 0004-637X/805/2/168) have shown that the simplified analytic model Forecasting a CME's Altered Trajectory (ForeCAT) can reproduce the deflection and rotation of CMEs. Kay, Gopal... Source: The Effects of Uncertainty in Initi...tation, Bz, and Arrival Time Predictions
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Thu 21 Mar 2019 12:05:PM
Abstract: Previous work by this team (Reale et al. 2018) has found that the current assimilation of AIRS (Atmospheric InfraRed Sounder) radiances on a regularly spaced thinning grid is suboptimal, probably because of horizontal error correlation over meteorologically inactive areas. Moreover, cloud-cleared radiances appear to be a better product than clear-sky radiances, but need to be assimilated at a much lower density globally, because of the higher information content. Specifically: 1. Assimilation... Source: Impact of Assimilating AIRS Cloud Cleared Radiances on the Analysis and Forecast of Polar Lows
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Thu 21 Mar 2019 12:03:PM
Abstract: Accurate forecasting of the properties of coronal mass ejections (CMEs) as they approach Earth is now recognized as an important strategic objective for both NOAA and NASA. The time of arrival of such events is a key parameter, one that had been anticipated to be relatively straightforward to constrain. In this study, we analyze forecasts submitted to the Community Coordinated Modeling Center at NASA's Goddard Space Flight Center over the last 6 years to answer the following questions: (1) Ho... Source: Forecasting the Arrival Time of Coronal Mass Ejections: Analysis of the CCMC CME Scoreboard
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Thu 21 Mar 2019 11:47:AM
Abstract: Energetic processes often produce transversely-heated angular distributions of the magnetized core (lowest energy) plasma. This characteristic is found in solar wind ion pickup, resulting from cometary or interstellar gas ionization, in Earths' ionosphere, and with hot ions formed around the Space Transportation System during gas releases. We investigate the thermalization of O+ ion pickup using the 2.5D hybrid simulation method (with fluid electrons and kinetic ions) of the ion pickup (ring)... Source: Collisionless Relaxation of the Ion Ring Distribution in Space Plasma
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Thu 21 Mar 2019 11:33:AM
Abstract: The southeastern U.S. produces the most industrial roundwood in the U.S. each year, largely from commercial pine plantations. The extent of plantation forests and management dynamics can be difficult to ascertain from periodic forest inventories, yet short-rotation tree plantations also present challenges for remote sensing. Here, we integrated spectral, temporal, and structural information from airborne and satellite platforms to distinguish pine plantations from natural forests and evaluate... Source: Mapping Pine Plantations in the Sou...ectral, and Temporal Remote Sensing Data
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Thu 21 Mar 2019 11:26:AM
Ducati will argue its controversial appendage should be allowed to remain on its bikes in front of the FIM Court of Appeals on Friday. Rivola will join representatives from Honda, Suzuki and KTM in making the case for it to be banned on the grounds that it provides an aerodynamic benefit. But despite being one of the driving forces behind the initial protest against Ducati in Qatar, Rivola ... Keep readingSource: Aprilia: Dovizioso shouldn't lose Qatar win in appeal
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