A5015549236- Ionosphere and magnetosphere dynamics
- Atmospheric Ozone and Climate
- Earthquake Detection and Analysis
- Geophysics and Gravity Measurements
- Solar and Space Plasma Dynamics
- Geomagnetism and Paleomagnetism Studies
- Optical Polarization and Ellipsometry
- GNSS positioning and interference
- Environmental and biological studies
- Big Data Technologies and Applications
- Atmospheric aerosols and clouds
- Photonic and Optical Devices
- Geography and Environmental Studies
- Meteorological Phenomena and Simulations
- Advanced MEMS and NEMS Technologies
- Economic and Technological Developments in Russia
- Astronomical Observations and Instrumentation
- Infrared Target Detection Methodologies
- Advanced Optical Sensing Technologies
- Optical and Acousto-Optic Technologies
- Geophysics and Sensor Technology
- Remote-Sensing Image Classification
- Atmospheric chemistry and aerosols
- Oceanographic and Atmospheric Processes
- Air Quality Monitoring and Forecasting
Computational Physics (United States)
2021-2024
The Center for Public Integrity
2021
Northeast Radio Observatory Corporation
2016
Massachusetts Institute of Technology
2016
Cornell University
2016
Scientific Solutions (United States)
2013-2016
Charles River Analytics (United States)
2006
Abstract The paper presents the effects of storm‐time prompt penetration electric fields (PPEF) and traveling atmospheric disturbances (TADs) on total electron content (TEC), foF2 hmF2 in American sector (north south) during geomagnetic storm 23–24 April 2023. data show a poleward shift Equatorial Ionization Anomaly (EIA) crests to 18°N 20°S evening 23 (attributed eastward PPEF) EIA remaining almost same latitudes after PPEF reversed westward. thermospheric neutral wind velocity, foF2, hmF2,...
Abstract The first midlatitude conjugate thermospheric wind observations in the American sector showed various degrees of conjugacy between Palmer (64°S, 64°W, magnetic latitude (MLAT) 50°S) and Millstone Hill (42.82°N, 71.5°W, MLAT 53°N) under three different geomagnetic conditions (recovery after a substorm, moderately active, quiet). agreement with National Center for Atmospheric Research's Thermosphere Ionosphere Electrodynamics General Circulation Model (TIEGCM) simulations also varies...
Abstract A radial diffusion model directly driven by the solar wind is developed to reproduce MeV electron variations between L = 2–12 ( * in this study) from October 2012 April 2015. The coefficient, internal source rate, quick loss due EMIC waves, and slow hiss waves are all expressed terms of speed, dynamic pressure, interplanetary magnetic field (IMF). achieves a prediction efficiency (PE) 0.45 at 5 0.51 4 after converting phase space densities differential fluxes comparing with Van...
In the domain of space science, numerous ground-based and space-borne data various phenomena have been accumulating rapidly, making analysis scientific interpretation challenging. However, recent trends in application artificial intelligence (AI) shown to be promising extraction information or knowledge discovery from these extensive sets. Coincidentally, preparing for use as inputs AI algorithms, referred AI-readiness, is one outstanding challenges leveraging science. Preparation AI-ready...
Nighttime ion temperature in the F region is generally thought to be close neutral at a similar altitude. However, few studies have been conducted that explore temporal variation between and temperatures night region. In this paper, similarities differences of nighttime over Millstone Hill (42.5°N, 71.5°W) were examined using incoherent scatter radar Fabry‐Pérot interferometer observations during periods 1–11 August 2011 12–23 January 2012, which represented summer winter seasons,...
In this paper, we present a technique for dimensionality reduction in hyperspectral imaging during the data collection process. A four-channel imager using liquid crystal Fabry-Perot etalons has been built and used to verify method four applications: auroral imaging, plant study, landscape classification, anomaly detection. This is capable of making measurements simultaneously wavelength ranges while being tunable within those ranges, thus can be measure narrow contiguous bands spectral...
Abstract. We investigate the response of mid-latitude thermospheric neutral winds to a sub-auroral polarization stream (SAPS) event. Using red line (F region) airglow data from two Fabry–Pérot interferometers (FPIs), and F-region ionospheric flow velocities four Super Dual Auroral Radar Network (SuperDARN) radars, drivers behind changes seen in are explored within context larger SAPS structure. Different, although strong, wind responses at FPI sites, even though they relatively close...
Abstract The spectral line profile of the atomic oxygen O 1 D 2 — 3 P transition near 6300 Å in airglow has been used for more than 50 years to extract neutral wind and temperature information from F‐region ionosphere. A new model recent samples this emission presence nearby lambda‐doubled OH Meinel (9‐3) (2.5) lines underscores earlier cautions that can significantly distort OI center position width observed using a single‐etalon Fabry‐Perot interferometer (FPI). consequence these...
Abstract Ground-based spectrometers have been deployed to measure the concentration, velocity, and temperature of ozone in mesosphere lower thermosphere (MLT), using low-cost satellite television electronics observe 11.072-GHz line ozone. The was observed at an altitude near 95 km 38°N, 71°W three located Massachusetts Institute Technology’s Haystack Observatory (Westford, Massachusetts), Chelmsford High School (Chelmsford, Union College (Schenectady, New York), each pointed south 8°...
A four channel hyperspectral imager using Liquid Crystal Fabry-Perot (LCFP) etalons has been built and tested. This is capable of making measurements simultaneously in wavelength ranges the visible spectrum. The instrument was designed to make natural airglow auroral emissions upper atmosphere Earth installed tested at Poker Flat Research Range Fairbanks, Alaska from February April 2014. results demonstrate capabilities challenges this presents as a sensor for aeronomical studies.
Abstract. We investigate the response of mid-latitude thermospheric neutral winds to a sub-auroral polarisation stream (SAPS) event. Using red-line (F-region) airglow data from two Fabry-Perot interferometers (FPIs), and F-region ionospheric flow velocities four Super Dual Auroral Radar Network (SuperDARN) radars, drivers behind changes seen in are explored within context larger SAPS structure. Different, although strong, wind responses at FPI sites, even though they relatively close...
Whitepaper #325 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: space weather applications; basic research. Additional ground-based missions/projects; research/applications/operations pipeline; solar physics; […]
The development and evaluation of precision strike weaponry requires high fidelity image simulation, as data collections involving moving platforms are difficult to schedule costly perform. Furthermore, live where the weapon is being guided by an autonomous target acquisition (ATA) system cannot be performed in dense urban environments. only solution develop navigation simulations realistic operating We currently developing a that automatically generates detailed scene requiring minimal user...