Zobrazeno 1 - 10
of 50
pro vyhledávání: '"J. E. Frederick"'
Autor:
J. E. Frederick, A. L. Hodge
Publikováno v:
Atmospheric Chemistry and Physics, Vol 11, Iss 3, Pp 1177-1189 (2011)
This research examines a 17-year database of UV-A (320–400 nm) and visible (400–600 nm) solar irradiance obtained by a scanning spectroradiometer located at the South Pole. The goal is to define the variability in solar irradiance reaching the po
Externí odkaz:
https://doaj.org/article/66051be85fc8466e8df45d62364e30e7
Publikováno v:
Journal of Rheology. 38:937-956
A mathematical model of the spectrum of relaxation times for molten linear monodisperse homopolymers has been developed which is the sum of two variations of the well‐known wedge spectrum. Adjusting the six parameters of the model allows fitting th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::196c07af06f41e6e9534ac038fca1960
https://doi.org/10.1122/1.550536
https://doi.org/10.1122/1.550536
Publikováno v:
Photochemistry and Photobiology. 54:781-788
The long-term data base on atmospheric ozone combined with a set of radiative transfer calculations provides estimates of the variability in ultraviolet (UV) sunlight that should have occurred over the period1957–1988 under clear, pollution-free sk
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d37f12c769dd7f01c98da1652d11a7cd
https://doi.org/10.1111/j.1751-1097.1991.tb02090.x
https://doi.org/10.1111/j.1751-1097.1991.tb02090.x
Publikováno v:
Photochemistry and photobiology. 74(6)
Ground-based measurements of solar UV spectral irradiance made from Ushuaia, Argentina at latitude 55 degrees S reveal a large degree of variability among corresponding months of different years over the period from September 1990 through April 1998.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::b6560b34b2578116c6f06f7a77537e1a
https://pubmed.ncbi.nlm.nih.gov/11783932
https://pubmed.ncbi.nlm.nih.gov/11783932
Publikováno v:
Photochemistry and photobiology. 72(4)
This research examines the behavior of ground-level solar UV radiation as measured by eight broadband meters in the continental United States during the period from late 1994 to late 1998. The goal is to define the variability that occurs in UV irrad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::03457e66784418867077e3bb175465b2
https://pubmed.ncbi.nlm.nih.gov/11045720
https://pubmed.ncbi.nlm.nih.gov/11045720
Autor:
K. Omidvar, J. E. Frederick
Publikováno v:
Planetary and Space Science. 35:769-784
Through a line by line calculation, the contributions of the Schumann-Runge bands of the ordinary and isotopic oxygen to the photodissociation of these molecules at different altitudes have been calculated. The photodissociation rates are expressed a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f9935f9e2ba91d9ff333c8c87c9b331
https://doi.org/10.1016/0032-0633(87)90037-7
https://doi.org/10.1016/0032-0633(87)90037-7
Autor:
J. E. Frederick, David W. Rusch
Publikováno v:
Journal of Geophysical Research. 82:3509-3517
The 5200-A N I (4S-²D) emission monitored by the visible airglow experiments on Atmosphere Explorer C and D combined with simultaneous measurements of atmospheric composition yields the following results. The metastable ²D term of atomic nitrogen m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1499c2b8640506e0cf84de00cb8e5838
https://doi.org/10.1029/ja082i025p03509
https://doi.org/10.1029/ja082i025p03509
Autor:
J. E. Frederick, Robert D. Hudson
Publikováno v:
Journal of the Atmospheric Sciences. 37:1099-1106
Oscillator strengths and predissociation linewidths deduced in recent studies predict a dissociation rate for O2 in the Schumann-Runge bands which is significantly larger in the upper stratosphere and lower mesosphere than previously believed. Error
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8c0fe1b2085bdfcdd21a2134790ff68
https://doi.org/10.1175/1520-0469(1980)037<1099:domoit>2.0.co
https://doi.org/10.1175/1520-0469(1980)037<1099:domoit>2.0.co
Autor:
J. E. Frederick, G. N. Serafino
Publikováno v:
Journal of Climate and Applied Meteorology. 24:904-914
The ability to detect subtle trends in upper stratospheric ozone places strict requirements on satellite-based Solar Backscatter Ultraviolet (SBUV) sensors intended for this purpose. Simulation of the long-term change in backscattered radiance indica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6cf57c3647b2190e32bb3ccf9bbd6fc
https://doi.org/10.1175/1520-0450(1985)024<0904:tdoltc>2.0.co
https://doi.org/10.1175/1520-0450(1985)024<0904:tdoltc>2.0.co
Autor:
R. B. Abrams, J. E. Frederick
Publikováno v:
Planetary and Space Science. 30:575-580
It is pointed out that numerous fluorescent emissions from the Herzberg bands of molecular oxygen lie in the spectral region 242-300 nm. This coincides with the wavelength range used by orbiting spectrometers that observe the Rayleigh backscattered s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7f15389c0ed70aef1504723cbd0d2ef
https://doi.org/10.1016/0032-0633(82)90165-9
https://doi.org/10.1016/0032-0633(82)90165-9