Tomographic Remote Sensing of Space Plasmas Using Spectroscopic Measurements
Author: Farzad Kamalabadi
Publisher:
Published: 2001
Total Pages: 256
ISBN-13:
DOWNLOAD EBOOKPosts
Measurement Techniques in Space Plasmas
Author: Robert F. Pfaff
Publisher: American Geophysical Union
Published: 1998-02-04
Total Pages: 350
ISBN-13: 0875900852
DOWNLOAD EBOOKPublished by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 102. Space plasma measurements are conducted in a hostile, remote environment. The art and science of measurements gathered in space depend therefore on unique instrument designs and fabrication methods to an extent perhaps unprecedented in experimental physics. In-situ measurement of space plasmas constitutes an expensive, unforgiving, and highly visible form of scientific endeavor.
A Strategy for Active Remote Sensing Amid Increased Demand for Radio Spectrum
Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
Published: 2015-09-21
Total Pages: 254
ISBN-13: 0309373085
DOWNLOAD EBOOKActive remote sensing is the principal tool used to study and to predict short- and long-term changes in the environment of Earth - the atmosphere, the oceans and the land surfaces - as well as the near space environment of Earth. All of these measurements are essential to understanding terrestrial weather, climate change, space weather hazards, and threats from asteroids. Active remote sensing measurements are of inestimable benefit to society, as we pursue the development of a technological civilization that is economically viable, and seek to maintain the quality of our life. A Strategy for Active Remote Sensing Amid Increased Demand for Spectrum describes the threats, both current and future, to the effective use of the electromagnetic spectrum required for active remote sensing. This report offers specific recommendations for protecting and making effective use of the spectrum required for active remote sensing.
Scientific and Technical Aerospace Reports
Author:
Publisher:
Published: 1995
Total Pages: 488
ISBN-13:
DOWNLOAD EBOOKLists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Optical Spectroscopic Techniques, Remote Sensing, and Instrumentation for Atmospheric and Space Research IV
Author: Allen M. Larar
Publisher: SPIE-International Society for Optical Engineering
Published: 2002
Total Pages: 530
ISBN-13:
DOWNLOAD EBOOKWorking Papers
Author: National Research Council
Publisher: National Academies Press
Published: 1991-02-01
Total Pages: 347
ISBN-13: 0309043832
DOWNLOAD EBOOKThis volume contains working papers on astronomy and astrophysics prepared by 15 non-National Research Council panels in areas ranging from radio astronomy to the status of the profession.
International Aerospace Abstracts
Author:
Publisher:
Published: 1998
Total Pages: 920
ISBN-13:
DOWNLOAD EBOOKMeasurement Techniques in Space Plasmas
Author: Robert F. Pfaff
Publisher: American Geophysical Union
Published: 1998-02-04
Total Pages: 344
ISBN-13:
DOWNLOAD EBOOKPublished by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 103. Space plasma measurements are conducted in a hostile, remote environment. The art and science of measurements gathered in space depend therefore on unique instrument designs and fabrication methods to an extent perhaps unprecedented in experimental physics. In-situ measurement of space plasmas constitutes an expensive, unforgiving, and highly visible form of scientific endeavor.
Spot Spectroscopy: Local Spectroscopic Measurements Within Laser-Produced Plasmas
Author: M. J. Herbst
Publisher:
Published: 1982
Total Pages: 18
ISBN-13:
DOWNLOAD EBOOKUse of a locally embedded tracer in laser-irradiated solid targets yields a localized source of diagnostic x-ray line radiation in the blowoff plasma. This technique potentially eliminates problems of chord-integration over regions of varying density and temperature in an inhomogeneous plasma, and reduces complications due to plasma opacity effects in the interpretation of spectra. Spectra obtained in an experimental test of this new technique are of a quality superior to those obtained from standard laser-produced plasmas, and should provide the best tests to date of spectroscopic models for these plasma conditions. (Author).
Titan Atmosphere Plasma Characterization Using Spectroscopic Measurement Techniques
Author: Mickaël Playez (Franck, Emmanuel)
Publisher:
Published: 2006
Total Pages: 163
ISBN-13:
DOWNLOAD EBOOKDuring entry or aero-capture in the atmosphere of the Saturn's satellite Titan, largeamounts of radiation are produced in the shock layer of a spacecraft. The design of theheat shield of this vehicle requires a precise assessment of the radiative heat flux impingingon it. We propose in this study an analysis of the radiation emitted in the spectral range350-1000 nm by a high temperature gas mixture with a composition representative of theTitan atmosphere composition. The plasma is produced in an Inductively Coupled Plasmawind tunnel. Emission spectroscopy measurements are performed for two different pressureconditions, 300 and 23 mbar, in order to produce equilibrium and non-equilibrium plasmas.The modelling of the plasma emission at equilibrium is performed and shown to agree tothe measured spectra on a absolute scale for the high-pressure case. The use of the samemodel for the analysis of the low-pressure case provides evidence of departure from equilibrium.Limitations of the implemented procedure are observed. They are due to unresolved fluctuations of the plasma source.
