Space and time variations in the fine structure of the upper atmosphere according to acoustic sounding data

Astrophysical tests of current values for dimensionless constants known on Earth, such as the fine-structure constant, α , and proton-to-electron mass ratio, μ = m p / m e , are communicated using data from high-resolution quasar spectra in different regions or epochs of the universe. The symmetry wavelengths of [Fe II] lines from redshifted quasar spectra of J110325-264515 and their corresponding values in the laboratory were combined to find a new limit on space-time variations in the proton-to-electron mass ratio, ∆ μ / μ = ( 0.096 ± 0.182 ) × 10 − 7 . The results show how the indicated astrophysical observations can further improve the accuracy and space-time variations of physics constants.

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Space and Time Variations in Specifying Monthly Mean Surface Temperature from the 700 mb Height Field

Monthly Weather Review ◽

10.1175/1520-0493(1985)113<0277:satvis>2.0.co;2 ◽

1985 ◽

Vol 113 (3) ◽

pp. 277-290 ◽

Cited By ~ 17

Author(s):

William H. Klein

Keyword(s):

Surface Temperature ◽

Height Field ◽

Space And Time ◽

Time Variations

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Space and time variations of large-scale air motions in the lower thermosphere

Journal of Atmospheric and Terrestrial Physics ◽

10.1016/0021-9169(74)90170-6 ◽

1974 ◽

Vol 36 (11) ◽

pp. 1841-1849 ◽

Cited By ~ 6

Author(s):

Yu.D Iljichev ◽

I.A Lysenko ◽

A.D Orlyansky ◽

Yu.I Portnyagin

Keyword(s):

Large Scale ◽

Lower Thermosphere ◽

Space And Time ◽

Time Variations

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Combination of the Equatorial Atmosphere Radar – Radio Acoustic Sounding System (EAR-RASS) in Determining a Fine Structure of Total Precipitable Water (TPW) over Kototabang, West Sumatera, Indonesia

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/166/1/012029 ◽

2018 ◽

Vol 166 ◽

pp. 012029

Author(s):

E Hermawan ◽

F. M. A Wahab

Keyword(s):

Fine Structure ◽

Precipitable Water ◽

Acoustic Sounding ◽

Total Precipitable Water

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Space and time variations of the runoff of Kamchatka Krai rivers

Water Resources ◽

10.1134/s0097807816030106 ◽

2016 ◽

Vol 43 (3) ◽

pp. 438-447 ◽

Cited By ~ 1

Author(s):

L. V. Kuksina ◽

N. I. Alekseevskii

Keyword(s):

Space And Time ◽

Time Variations ◽

Kamchatka Krai Rivers

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Diurnal albedo variation of black spruce and sphagnum–sedge bogs

Canadian Journal of Forest Research ◽

10.1139/x76-034 ◽

1976 ◽

Vol 6 (3) ◽

pp. 247-252 ◽

Cited By ~ 2

Author(s):

Erwin R. Berglund ◽

Arnett C. Mace Jr.

Keyword(s):

Solar Radiation ◽

Black Spruce ◽

Specular Reflection ◽

Radiation Quality ◽

Surface Flattening ◽

Solar Altitude ◽

Space And Time ◽

Time Variations ◽

Dominant Influence

Diurnal albedo relationships were determined for black spruce (Piceamariana (Mill.) B.S.P.) and sphagnum–sedge bogs in northern Minnesota. Two opposing, cart-mounted, Kipp and Zonen pyranometers traversed a tramway to integrate space and time variations of incoming and reflected solar radiation (waveband 0.3–3.0 microns (μ)).The black spruce stand's diurnal albedo was parabolic. Albedo increased with solar altitude to a maximum at 1200 h (7–8%) and then decreased. Greatest within-season variation occurred during June and September. Canopy roughness was the dominant influence on albedo variation and differences.The sphagnum–sedge type diurnal albedo was M-shaped. A minimum albedo between two maxima occurred at 1200 h. Albedos increased from the 1200-h minimum to each maxima as a result of reported surface 'flattening' effects, increased specular reflection, and changes in solar radiation quality. Albedos before the first and after the second maxima were dominated by the microrelief roughness of the sphagnum–sedge hummocks.

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