Zobrazeno 1 - 10
of 175
pro vyhledávání: '"T. A. Fritz"'
Autor:
H. Lin, L. K. Emmons, E. W. Lundgren, L. H. Yang, X. Feng, R. Dang, S. Zhai, Y. Tang, M. M. Kelp, N. K. Colombi, S. D. Eastham, T. M. Fritz, D. J. Jacob
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 8607-8624 (2024)
Tropospheric ozone is a major air pollutant and greenhouse gas. It is also the primary precursor of OH, the main tropospheric oxidant. Global atmospheric chemistry models show large differences in their simulations of tropospheric ozone budgets. Here
Externí odkaz:
https://doaj.org/article/712cd78ebcad42cf96a097d637349c22
Autor:
M. M. Klida, T. A. Fritz
Publikováno v:
Annales Geophysicae, Vol 31, Pp 305-314 (2013)
The Imaging Electron Spectrometer (IES) on the Polar satellite has measured the average characteristics of the equatorial electron pitch angle distributions (PADs) in the midnight sector as a function of radial distance out to the 9 RE apogee of t
Externí odkaz:
https://doaj.org/article/7e3ac4368a8744a8a89d6bfaea7722fb
Publikováno v:
Annales Geophysicae, Vol 30, Pp 1003-1013 (2012)
A case study is presented to determine the source of the energetic electron layer frequently observed along the high-latitude magnetopause. Measurements by the Cluster spacecraft show bursts of field-aligned electrons occurring during time periods
Externí odkaz:
https://doaj.org/article/c000e3325a39440bb8347d368f3e2a5f
Autor:
I. I. Vogiatzis, O. E. Malandraki, Q.-G. Zong, X.-Z. Zhou, T. E. Sarris, E. T. Sarris, H. Zhang, T. A. Fritz
Publikováno v:
Annales Geophysicae, Vol 29, Pp 2117-2130 (2011)
We investigated a number of substorm events during major conjunctions of the THEMIS spacecraft for the tail seasons of the mission. We present simultaneous observations from various instruments onboard the THEMIS spacecraft during the events. We fo
Externí odkaz:
https://doaj.org/article/9e318b2a373549fca6db7aa3894abe60
Publikováno v:
Annales Geophysicae, Vol 28, Pp 983-992 (2010)
A case study is presented to test the role several different sources may play in populating the exterior cusp with energetic (E>40 keV) electrons. The properties of the electrons measured in the exterior cusp are compared with the expected signatu
Externí odkaz:
https://doaj.org/article/ad6b927abd0e49bfa11922410524ffd5
Publikováno v:
Annales Geophysicae, Vol 26, Pp 3501-3509 (2008)
While crossing through the high-altitude dayside cusp on 29 September 1978 and again on 30 October 1978, the ISEE-1 spacecraft observed enhanced energetic particle flux and a depressed and turbulent magnetic field, the signature characteristics of
Externí odkaz:
https://doaj.org/article/34bd6910d4684cf2a79881dbbd51b7aa
Publikováno v:
Annales Geophysicae, Vol 25, Pp 1175-1182 (2007)
Observations on 30 October 1978 show the ISEE-1 spacecraft passing though the high-altitude dayside northern magnetospheric cusp region from roughly 16:00 to 18:30 UT, during a slow solar wind period (~380 km/s). More than two orders of magnitude
Externí odkaz:
https://doaj.org/article/9d81695dbf184b64bddb103f22e27859
Publikováno v:
Annales Geophysicae, Vol 25, Pp 2633-2640 (2007)
Observations by the ISEE-1 and ISEE-2 spacecraft on 29 September 1978 show large CEP (Cusp Energetic Particle) fluxes while passing through the dayside magnetospheric cusp in near coincident orbits. The event was observed around 11:00 MLT between
Externí odkaz:
https://doaj.org/article/de030f13ed52471bb7c26364a9fd4d75
Publikováno v:
Annales Geophysicae, Vol 24, Pp 3131-3137 (2006)
The study focuses on a single particle dynamics in the cusp region. The topology of the cusp region in terms of magnetic field iso-B contours has been studied using the Tsyganenko 96 model (T96) as an example, to show the importance of an off-equa
Externí odkaz:
https://doaj.org/article/c9a7c43c659e46739f32c65ec32f02bb
Publikováno v:
Annales Geophysicae, Vol 24, Pp 3099-3113 (2006)
Unusual energetic particle pitch angle distributions (PADs) were observed by the ISEE-1 and 2 satellites at 3 h MLT and a radial distance of about 10–15 RE during the time period of 07:00-14:00 UT on 3 March 1979. The ISEE-1 satellite obtained c
Externí odkaz:
https://doaj.org/article/b0a63bd04ba2417caf6d6e6901092e8e