THE RELATIONSHIP OF THE FRACTAL DIMENSION OF THE ROWS OF MULTI-YEAR RIVER RUNOFF AND THE NORMS OF SURFACE AIR TEMPERATURE

This paper features a numerical study that is carried out by using discontinuous deformation method (DDA) and fractal geometry. The configurations of rock strata calculated by DDA were imported into a code that is written by using VC++ called “Fractal” to calculate the fractal dimension of the rock strata. As illustrated, a long wall mining case in China was presented. The relationship of the fractal dimension, excavation length, stress, and movement of strata were discussed. The evolution of fractal dimension can be considered as an index of instability or failure. The method proposed in this paper can be employed to predict the period weighting in long wall mining engineering.

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Relationship of Three Rock Parameters

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.986-987.2176 ◽

2014 ◽

Vol 986-987 ◽

pp. 2176-2179

Author(s):

Li Li Sui ◽

Yong Ming Yang ◽

Peng Liu ◽

Jia Liang Chen ◽

Zhi Shun Ge ◽

...

Keyword(s):

Fractal Dimension ◽

Surface Density ◽

Regression Coefficients ◽

Fracture Density ◽

Surface Fracture ◽

Two Parameters ◽

Rock Brittleness ◽

Relationship Of ◽

The Relationship ◽

Rock Parameters

In order to solve complex problems of traditional methods used to evaluate the rock fracability, the relationship between fractal dimension, rock brittleness and fracture density these three parameters was studied. The multiple linear regression is reasonable through nine kinds cores. The regression coefficients demonstrate both rock brittleness and surface fracture density play positive roles on fractal dimension value, the larger they are, the better the fracability. Therefore, the two parameters can be converted to consider only one parameter that is the fractal dimension of rock. The larger the fractal dimension, the better the fracability is, that is using fractal dimension represents brittle index and surface density to participate in fracability evaluation.

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On the absorption of water by cotton and wool

Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character ◽

10.1098/rspa.1907.0032 ◽

1907 ◽

Vol 79 (529) ◽

pp. 204-205 ◽

Cited By ~ 9

Keyword(s):

Carbon Dioxide ◽

Water Vapour ◽

Air Temperature ◽

Amorphous Carbon ◽

The Law ◽

Relationship Of ◽

Low Pressures ◽

The Relationship ◽

System Water ◽

Mechanical Rigidity

In a footnote to my paper entitled “ The Law of Distribution where one of the Phases possesses Mechanical Rigidity," I attempted to show how the results obtained by Professor Trouton for the absorption of water vapour by cotton could be reconciled with those obtained by me in the case of similar systems, such as carbon dioxide and amorphous carbon. As the apparatus I had employed in the investigation referred to was particularly suited to the accurate measurement of low pressures, I obtained Professor Trouton’s permission to repeat his work, and to investigate the relationship of pressure and concentration for the systems water-cotton and water-wool at the temperature of melting ice. I was particularly anxious to redetermine the lower portions of the curves, for as in Professor Trouton’s experiments the material was dried at the air temperature, it appeared probable that it contained water at the commencement of the experiment, and that the true origin of his curves lay further to the left than the results appeared to show. If this were the case, the true curve representing equilibrium in the system water-cotton might closely resemble those representing equilibrium in the system carbon dioxide and amorphous carbon.

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Joint multifractal description of the relationship between wind patterns and land surface air temperature

Atmospheric Research ◽

10.1016/j.atmosres.2010.11.009 ◽

2011 ◽

Vol 99 (3-4) ◽

pp. 366-376 ◽

Cited By ~ 18

Author(s):

F.J. Jiménez-Hornero ◽

P. Pavón-Domínguez ◽

E. Gutiérrez de Ravé ◽

A.B. Ariza-Villaverde

Keyword(s):

Air Temperature ◽

Land Surface ◽

Surface Air Temperature ◽

The Relationship ◽

Wind Patterns

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RESEARCH OF METEOROLOGICAL AND HYDROLOGICAL PARAMETERS OF THE CAUCASUS REGION

GEOLOGY GEOGRAPHY AND GLOBAL ENERGY ◽

10.21672/2077-6322-2021-81-2-114-124 ◽

2021 ◽

Vol 81 (2) ◽

pp. 114-124

Author(s):

BOZIEVA ZHANNA CH. ◽

◽

AGOEVA ELEONORA A. ◽

ITTIEV ABDULLAX B. ◽

◽

...

Keyword(s):

Climate Change ◽

Air Temperature ◽

Hydrological Cycle ◽

Atmospheric Precipitation ◽

Surface Air Temperature ◽

Well Being ◽

Extreme Weather Events ◽

The Caucasus ◽

The Impact ◽

The Relationship

The negative effects of global climate change and the impact of rising surface air temperatures are already evident. Among the many echoes of these processes are the melting of glaciers, the reduction of the ice cover of the northern seas, the gradual disappearance of permafrost, sea level rise, soil erosion, and extreme weather events such as floods, hurricanes, droughts, and forest fires. As a result, the world's freshwater resources, public health and the well-being of the environment are under threat. Annually renewable fresh water resources, represented by the annual flow of rivers, are of undoubted value. Our goal was to identify the relationship of meteorological parameters, such as surface air temperature and precipitation in the high-altitude region of the Central Caucasus, with water consumption in the lowland territory of the Caucasus on the example of the river.Terek (art. Kotlyarevskaya). These studies are particularly valuable from the point of view of the relationship between climate change and its further impact on the hydrological cycle of the lowland regions of the Caucasus. In the course of the research, the relationship was revealed, indicating that the distribution of river flow over the territory of the Caucasus corresponds to the distribution of the annual amounts of surface air temperature and the annual amounts of atmospheric precipitation.

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Climatological significance of δ18 O in precipitation and ice cores: a case study at the head of the Ürümqi river, Tien Shan, China

Journal of Glaciology ◽

10.3189/s0022143000001374 ◽

1999 ◽

Vol 45 (151) ◽

pp. 517-523

Author(s):

Hou Shugui ◽

Qin Dahe ◽

Paul A. Mayewski ◽

Yang Qinzhao ◽

Ren Jiawen ◽

...

Keyword(s):

Air Temperature ◽

Ice Core ◽

Sampling Site ◽

Surface Air Temperature ◽

Ice Cores ◽

Tien Shan ◽

Condensation Temperature ◽

Oxygen Isotope Ratios ◽

Stable Oxygen ◽

The Relationship

AbstractStable-oxygen-isotope ratios (δ18O) of precipitation and ice-core samples collected from the headwaters of the Urümqi river, Tien Shan, China, were used to test the relationship between δ18O and contemporaneous surface air temperature (Ta). A strong temporal relationship is found between δ18O in precipitation and Ta, particularly for the monthly averages which remove synoptic-scale influences such as changes in condensation level, condensation temperature and moisture sources ( Yao and others, 1996). Linear fits as high as 0.95‰° C-1 for precipitation events and 1.23‰° C-1 for monthly averages are found. Although the δ18O amplitude in ice cores drilled at the nearby Ürümqi glacier No.1(~2 km from the precipitation sampling site) decreased dramatically compared to the precipitation samples, the ice-core records of annually averaged δ18 are still positively correlated with contemporaneous air temperature, especially summer air temperature, at the nearby Daxigou meteorological station. Nevertheless, the relationship between the ice-core δ18O records and contemporaneous air temperature is less significant than that for the precipitation samples due to depositional and post-depositional modification processes, which are highlighted by the successive snow-pit δ18O profiles from the Ürümqi glacier No.1. Our results might extend the application of high-altitude and subtropical ice-core δ18O —Ta records for paleoclimate reconstruction.

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