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CVaR-based Flight Energy Risk Assessment for Multirotor UAVs using a Deep Energy Model [PDF]

, 2021
Energy management is a critical aspect of risk assessment for Uncrewed Aerial Vehicle (UAV) flights, as a depleted battery during a flight brings almost guaranteed vehicle damage and a high risk of human injuries or property damage. Predicting the amount of energy a flight will consume is challenging as routing, weather, obstacles, and other factors ...
arxiv   +1 more source

NIRCam Performance on JWST In Flight [PDF]

, 2022
The Near Infrared Camera for the James Webb Space Telescope is delivering the imagery that astronomers have hoped for ever since JWST was proposed back in the 1990s.
M. Rieke, D. Kelly, K. Misselt, J. Stansberry, M. Boyer, T. Beatty, E. Egami, M. Florian, T. Greene, 1. KevinHainline, J. Leisenring, T. Roellig, E. Schlawin, F. Sun, Lee Tinnin, C. Williams, C. Willmer, Debra Wilson, C. Clark, S. Rohrbach, Brian Brooks, Alicia M. Canipe, M. Correnti, A. DiFelice, M. Gennaro, Julien H. Girard, G. Hartig, B. Hilbert, A. Koekemoer, N. Nikolov, N. Pirzkal, A. Rest, M. Robberto, B. Sunnquist, R. Telfer, C. Wu, M. Ferry, D. Lewis, S. Baum, C. Beichman, R. Doyon, A. Dressler, D. Eisenstein, L. Ferrarese, K. Hodapp, S. Horner, D. Jaffe, D. Johnstone, J. Krist, P. Martin, D. Mccarthy, M. Meyer, G. Rieke, J. Trauger, Erick T. Young Steward Observatory, Space Telescope Science Institute, U. Wisconsin, N. R. Center, National Mobile Communications Research Laboratory, Goddard Space Flight Center, I. Roma, Lockheed Martin Advanced Technology Center, U. O. Manitoba, Nasa Exoplanet Science InstituteIPAC, U. Montr'eal, The Observatories, The Observatories of the Carnegie Institution for Science, Center for Computational Astrophysics, Harvard, Smithsonian, N. Canada, H. Astronomy, Astrophysics, U. Hawaii, T. U. O. T. A. Austin, Jet propulsion Laboratory, Canadian Institute for Theoretical Astrophysics, U. Michigan, Usra   +78 more
semanticscholar   +1 more source

Interconnected hydrologic extreme drivers and impacts depicted by remote sensing data assimilation

Scientific Reports, 2023
Hydrologic extremes often involve a complex interplay of several processes. For example, flood events can have a cascade of impacts, such as saturated soils and suppressed vegetation growth.
Timothy M. Lahmers, Sujay V. Kumar, Kim A. Locke, Shugong Wang, Augusto Getirana, Melissa L. Wrzesien, Pang-Wei Liu, Shahryar Khalique Ahmad   +7 more
doaj   +1 more source

The Mid-infrared Instrument for JWST and Its In-flight Performance

Publications of the Astronomical Society of the Pacific, 2023
The Mid-Infrared Instrument (MIRI) extends the reach of the James Webb Space Telescope (JWST) to 28.5 μm. It provides subarcsecond-resolution imaging, high sensitivity coronagraphy, and spectroscopy at resolutions of λ/Δλ ∼ 100–3500, with the high ...
G. Wright, G. Rieke, A. Glasse, M. Ressler, Macarena García Marín, J. Aguilar, S. Alberts, J. Álvarez-Márquez, I. Argyriou, K. Banks, P. Baudoz, A. Boccaletti, P. Bouchet, J. Bouwman, Bernard R. Brandl, David Breda, S. Bright, Stephen Cale, L. Colina, C. Cossou, A. Coulais, M. Cracraft, Wim De Meester, D. Dicken, M. Engesser, M. Etxaluze, O. Fox, S. Friedman, Henry Fu, D. Gasman, A. Gáspár, R. Gastaud, V. Geers, A. Glauser, K. Gordon, T. Greene, T. Greve, T. Grundy, M. Güdel, P. Guillard, Peter Haderlein, Ryan Hashimoto, T. Henning, D. Hines, B. Holler, Ö. Detre, A. Jahromi, B. James, O. Jones, K. Justtanont, P. Kavanagh, S. Kendrew, P. Klaassen, O. Krause, Á. Labiano, P. Lagage, S. Lambros, K. Larson, D. Law, David W. Lee, M. Libralato, Jose Lorenzo Alverez, M. Meixner, J. Morrison, M. Mueller, Katherine T. Murray, M. Mycroft, Richard H. Myers, O. Nayak, B. Naylor, B. Nickson, A. Noriega-Crespo, G. Östlin, B. O’Sullivan, R. Ottens, P. Patapis, K. Penanen, Martin Pietraszkiewicz, T. Ray, M. Regan, Anthony Roteliuk, P. Royer, P. Samara-Ratna, B. Samuelson, B. Sargent, S. Scheithauer, Analyn Schneider, Jürgen Schreiber, B. Shaughnessy, Ev Sheehan, I. Shivaei, G. Sloan, L. Tamás, Kelly K. Teague, T. Temim, T. Tikkanen, S. Tustain, E. V. van Dishoeck, B. Vandenbussche, M. Weilert, Paul Whitehouse, S. Wolff   +101 more
semanticscholar   +1 more source

Multi-decadal aerosol variations from 1980 to 2009: a perspective from observations and a global model [PDF]

Atmospheric Chemistry and Physics, 2014
Aerosol variations and trends over different land and ocean regions from 1980 to 2009 are analyzed with the Goddard Chemistry Aerosol Radiation and Transport (GOCART) model and observations from multiple satellite sensors and available ground-based ...
M. Chin, T. Diehl, Q. Tan, J. M. Prospero, R. A. Kahn, L. A. Remer, H. Yu, A. M. Sayer, H. Bian, I. V. Geogdzhayev, B. N. Holben, S. G. Howell, B. J. Huebert, N. C. Hsu, D. Kim, T. L. Kucsera, R. C. Levy, M. I. Mishchenko, X. Pan, P. K. Quinn, G. L. Schuster, D. G. Streets, S. A. Strode, O. Torres, X.-P. Zhao   +24 more
doaj   +1 more source

Adaptive Antenna Pattern Notching of Interference in Synthetic Aperture Radar Data Using Digital Beamforming

Remote Sensing, 2019
Radio Frequency Interference (RFI) is a growing problem in Synthetic Aperture Radar (SAR) systems as scientific motivations push the radars to lower frequencies and as more wireless services share the frequency spectrum.
Tobias Bollian, Batuhan Osmanoglu, Rafael Rincon, Seung-Kuk Lee, Temilola Fatoyinbo   +4 more
doaj   +1 more source

Aurora Detection From Nighttime Lights for Earth and Space Science Applications

Earth and Space Science, 2023
This research leverages data from the Day/Night Band (DNB) of the Visible Infrared Imaging Radiometer (VIIRS) instrument onboard the Suomi National Polar‐orbiting Partnership (S‐NPP) satellite.
Virginia Kalb, Burcu Kosar, Yaireska Collado‐Vega, Carol Davidson   +3 more
doaj   +1 more source

Revisiting the Role of Exercise Countermeasure on the Regulation of Energy Balance During Space Flight

Frontiers in Physiology, 2019
A body mass loss has been consistently observed in astronauts. This loss is of medical concern since energy deficit can exacerbate some of the deleterious physiological changes observed during space flight including cardiovascular deconditioning, bone ...
C. Laurens, C. Simon, J. Vernikos, G. Gauquelin‐Koch, S. Blanc, A. Bergouignan   +5 more
semanticscholar   +1 more source

Implications of carbon monoxide bias for methane lifetime and atmospheric composition in chemistry climate models [PDF]

Atmospheric Chemistry and Physics, 2015
A low bias in carbon monoxide (CO) at northern high and mid-latitudes is a common feature of chemistry climate models (CCMs) that may indicate or contribute to a high bias in simulated OH and corresponding low bias in methane lifetime. We use simulations
S. A. Strode, B. N. Duncan, E. A. Yegorova, J. Kouatchou, J. R. Ziemke, A. R. Douglass   +5 more
doaj   +1 more source

Examples of fast solar wind transients, their sources and the forecast of possible geomagnetic impact

Geofísica Internacional, 2000
Presentamos ejemplos de la observación interplanetaria de expulsiones de materia solar, incluyendo posibles nubes magnéticas, que generaron choques magnetosónicos de alta velocidad en el medio interplanetario.
D. Berdichevsky, J. G. Richardson, B. J. Thomspson, D. V. Reames, R. MacDowall, S. P. Plunkett, D. J. Michels, M. L. Kaiser, R. P. Lepping, K. W. Ogilvie, R. G. Stone   +10 more
doaj   +1 more source