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Periodic variations in ozone concentration and direct insolation in the ground layer of the atmosphere

November 1988

Authors:

The variations in the solar radiation intensity (SRI) at the earth's surface and the concentration of ozone at the ground level were observed. Ozone observations were made at a height of 1.5 m above the ground. Each series of measurements included about 100 point SRI and O3 readings, made simultaneously at intervals of 25 seconds. The interval between the measurement series was about 1 hour. The results show that the periods of the first and second harmonics of the variations in solar radiation intensity and [O3] are practically identical and are independent of place, time of day, or weather conditions. There exists a correlation between the fluctuations in [O3] and SRI with a coefficient of correlation of about 0.74, and the fluctuations of [O3] are of photochemical origin.

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From the age of prokaryotes to the origin of eukaryotes

January 2001

J. Chela-Flores

Our subsequent discussion is based on the idea that evolution has taken place on Earth. Darwin’s major thesis was that evolutionary change is due to the production of variation in a population and the survival and reproductive success of some of these variants.

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Comment on "Comment on 'Constant temperature molecular dynamics simulations by means of a stochastic...

April 2004 · The Journal of Chemical Physics

Stefan M. Kast

An argument brought forward by Sholl and Fichthorn [J. Chem. Phys. 106, 1646 (1997)] against the stochastic collision-based constant temperature algorithm for molecular dynamics simulations developed by Kast et al. [J. Chem. Phys 100, 566 (1994); 104, 3732 (1996)] is refuted. It is demonstrated that the large temperature fluctuations noted by Sholl and Fichthorn are due to improperly chosen ... [Show full abstract] initial conditions within their formulation of the algorithm. With the original form or by suitable initialization of their variant no deficient behavior is observed.

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The Orbit of a Spectroscopic Binary (L)

January 1987

J. Kleczek

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Effect of the anisotropy of atmospheric inhomogeneities on the operation of an interferometer when r...

January 1990

The correlation of the phase difference fluctuations of an interferometer, located near the earth's surface is investigated. A different arrangement without an interferometer is analyzed. The correlation function is shown to depend on the anisotropy of atmospheric inhomogeneities.

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November 2003 · Earth Moon and Planets

A. Yu. Ol'khovatov

On the morning of June 30, 1908 a remarkable naturalphenomenon took place in the region to the north and north-west of Lake Baikal in Russia, which is now usually known as the Tunguska event. Despite the fact that a dozen explanations or more have been put forward to explain this event, its origin is still questionable. In this work geophysical circumstances of the Tunguskaevent are investigated. ... [Show full abstract] The research reveals that the event took place during a strong upsurge of tectonic activity in the Tunguska event region, and there were some peculiarities in tectonic activity even on larger scales. Also the event occurred during a change from a long period of "good" weather to a ''bad'' one in the region. And there were also peculiarities in the atmosphere on larger scales at those times. In the author's opinion, this suggests that the Tunguskaevent was of geophysical origin. On much smaller scales similar geophysical events occur rather often.

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The middle atmosphere after the Middle Atmosphere Programme (MAP)

November 1987 · Philosophical Transactions A

S.A. Bowhill

The Middle Atmosphere Programme (MAP) took place in the period 1 January 1982-31 December 1985. It was a period for an international cooperative programme of study of the atmospheric region from about 10 to 100 km above the Earth's surface. The main work of MAP was done by 17 projects, each proposed, developed and coordinated by an individual scientist. In this paper, the main achievements of ... [Show full abstract] these projects are outlined, and the status of our understanding of the middle atmosphere in 1986 is compared with that in 1976, when the original planning conference of MAP was held. -from Author

Chapter

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January 1998

Olivier Merle

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Soft probes of the QGP: Pb-Pb and p-Pb CMS results

April 2016 · Nuclear and Particle Physics Proceedings

Jovan Milosevic

The CMS collaboration measured second-order single-particle anisotropy, , using 2-, 4-, 6- and 8-particle correlations as well as the Lee-Yang Zero method in pPb and PbPb collisions. This result shows that the correlations found in the small and highly asymmetric pPb collision system are long-range and have a many-particle origin. Deeper insight into the nature of these correlations is achieved ... [Show full abstract] by studying the factorization breaking effect which appears trough a -dependent event plane angle, caused by the initial-state fluctuations. The effect is largest for the most-central PbPb collisions (up to 20%), while it is on the level of few percent for peripheral PbPb and high-multiplicity pPb events. Hydrodynamics models which include a -dependent event plane angle semi-quantitatively describe the data and suggest that the effect is mainly determined by the initial-state conditions.

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BUILT IN, OR ENCASTRÉ, BEAMS

December 2014

JOHN CASE

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The Earliest Red Beds

January 1982

The Waterberg, Soutpansberg, Umkondo, and Matsap Groups (Fig. 7-1) are of roughly equivalent age and are characterized by the ubiquitous presence of the earliest red beds, which provide significant information concerning the character of the Earth’s early atmosphere. Irrespective of whether the red pigmentation originated in the source area or developed at the site of deposition (Van Houten, ... [Show full abstract] 1968), oxidizing conditions must have existed at the time the sediments were deposited or shortly thereafter.

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Full-text available

Pacific atmospheric dynamics with and without a positive ENSO (by Diego Fdez-Sevilla, PhD).

March 2016

Diego Fdez-Sevilla

When studying the positive phase of the El Niño-Southern Oscillatio (ENSO) called El Niño, there are some major restrictions in the interpretations of previous and subsequent events. The major one I see is that IF it is accepted that the ENSO is a consequence of a change in atmospheric dynamics as a result of a variation in the configuration of winds (W/E) at the Eq. Pacific, any weather ... [Show full abstract] phenomena occurring in synchronism (including latency) with the ENSO is part of a chain reaction being originated before the positive ENSO is detected. And yet, studying the effect called “El Niño”, it is diminished the approach of considering it as a "shared" consequence but it is given to it primary relevancy as a "singular" factor being a trigger. In this publication I discuss the implications derived from such limitations and I present alternative interpretations based on atmospheric assessments made from observations carried since 2013.

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Detection in THESEUS Using Scanning and Soudan-Standard Event Reconstruction

January 2001

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