Presentation of the implementation plan for Pillar 4_RussianFAO
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http://www.fao.org/globalsoilpartnership
This presentation was made during the Plenary meeting of the Eurasian Soil Partnership (EASP) that took place in Samarkand, Uzbekistan from 10-11 September 2014. This presentation was made by Prof. Sviatoslav Baliuk, and it presents the Implementation plan for Pillar 4.
息FAO: http://www.fao.org
El documento describe varias secciones de terreno entre puntos A-F, A-B, C-D y C-G. En cada secci坦n se mencionan caracter鱈sticas geol坦gicas como material sedimentario, roca madre, fallas, fracturas, agua, nivel del mar y flujo de agua, as鱈 como tambi辿n se nombran algunos pozos de monitoreo designados como pz-06, pz-07 y pz-10.
Georadar survey of the fall of the METEORITE fragment 弌hebarculLeonid Krinitsky
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1. Georadar surveys of Lake Chebarkul in Russia were conducted to locate fragments of the Chelyabinsk meteorite that witnesses reported falling into the lake.
2. The surveys identified an anomaly on the lake bottom with a sharp drop in topography and disruption of the ice layer, which is interpreted as the impact crater from a meteorite fragment.
3. Further evidence supporting the meteorite impact hypothesis includes the meteorite's trajectory approaching the lake from the northeast and ejection of ice around the impact site.
Geo-radar LOZA and it application for sounding high resistive sections in Sou...Leonid Krinitsky
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The LOZA uses for various purposes such as search for hydrogeological objects, paleo- reliefs, kimberlite pipes and fissures, voids in the underlying medium, and geological structures. Some experiments with the DPR were carried out in South Africa in 2018 where traditionally GPR were used only for mine exploration.
This article documents the use of portable georadar for measuring the thickness of sea ice.
This device was developed to replace the method for measuring ice thickness by drilling ice
holes. The device based on the use of the LOZA georadar (ground penetrating radar, GPR)
and a specially developed method of field measurements when landing on the studied ice
formations. The study of the thickness and structure of sea ice by radar method is a complex
problem. The salinity of sea ice determines its significant conductivity, which, in turn, causes
a large attenuation of the electromagnetic signal of the georadar. The widespread GPR with
a pulse power of 50100 W are not applicable for sounding sea ice precisely because of the
large signal attenuation. The LOZA instrument is equipped with a transmitter with a pulse
power of 1 MW. This is, on average, 10,000 times greater than that of traditional GPRs.
Multiple measurements of the thickness of ice formations, carried out on the one-year ice of the
eastern shelf of Sakhalin Island during winter expeditions of 2016 and 2019, have shown that
the device can quickly, accurately and with a high spatial resolution measure the thickness of
both flat and highly deformed ice (hummocks, rafted ice, and rubble field) over large areas.
KEYWORDS: Sea ice thickness; ice formations; georadar; GPR.
Geophysical mapping of the old granite quarry.
The granite quarry was developed by hand in the 17th and 18th centuries, convicts worked in the quarry, and the quarried stone was used for road construction.
Determination of the roof of granites. Determining the depth of the quarry. Determination of the contours of the quarry. Determination of the thickness of bulk soils. Research tool GPR Loza-N, dipole antennas 100 MHz.
GPR Probing of Smoothly Layered Subsurface Medium: 3D Analytical ModelLeonid Krinitsky
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An analytical approach to GPR probing of a
horizontally layered subsurface medium is developed, based on the coupled-wave WKB approximation. An empirical model of current in dipole transmitter antenna is used.
GPR survey of the bottom of Lake Chebarkul. Six years after the fall of the C...Leonid Krinitsky
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GPR survey at the site of the fall of the Chelyabinsk meteorite, Lake Chebarkul, Chelyabinsk, Russia.
Studying the place of the fall of the Chelyabinsk meteorite in the winter of 2013, GPR-team returned to this place after 6 years.
Numerical studies of the radiation patterns of resistively loaded dipolesLeonid Krinitsky
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This document describes a numerical study of the radiation patterns of resistively loaded dipole antennas. It computes the far field radiation patterns as a superposition of transient solutions for infinitesimal dipole elements. The current excitation for each dipole element is modeled as a half cycle of a sine squared waveform that propagates along the antenna at an adjustable speed. The radiation patterns are presented for different dielectric media to model antennas used in ground penetrating radar applications in various materials like water, ice, and soil. Comparisons are made to field observations.
Deep Penetration Radar. Exploration of Geological Substructures. Experimental...Leonid Krinitsky
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When developing the "Loza" deep penetration radar, great efforts were taken to make the device's sounding depth attractive for geologists and geophysicists. Lozas deep penetration radar has the following characteristics; ultrahigh power, signal energy concentration in the low-frequency spectrum area, large dynamic range of reflected signal recording [1], enabling the GPR to be applied in the exploration of subsurface structures to depths of 100-150 meters in heavy-textured low-resistivity soils and up to 200-300 meters in high-resistivity rocks.
GPR INVESTIGATION es una empresa dedicada a la prospecci坦n geof鱈sica geol坦gica exploraci坦n y estudio del subsuelo con tecnolog鱈a rusa de 炭ltima generaci坦n, mediante metodolog鱈a de Georadar (GPR Radar de Penetraci坦n Terrestre) NO INVASIVA y AMIGABLE con el medio ambiente.
Equipo basado en un m辿todo innovador en la geof鱈sica cerca de la superficie.
La principal caracter鱈stica distintiva del GPR Loza es la acumulaci坦n de energ鱈a en un 炭nico impulso de alta tensi坦n transmitido en vez de la s鱈ntesis de la se単al recibida mediante el procesamiento estrobosc坦pico repetitivo.
Deep Penetration Radar: Hydrogeology and Paleorelief of Underlying MediumLeonid Krinitsky
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We discuss geophysical applications of enhanced-power ground penetrating radar. Its technical characteristics assure penetration depth and resolution sufficient for probing weak subsurface boundaries, such as buried riverbeds or interfaces between natural and artificial grounds. Examples of deep GPR scans demonstrate weak protracted echo signals originated at smooth permittivity gradients of the subsurface medium. Their quantitative interpretation can be done with the help of time-domain version of coupled WKB approximation.
Paper presented at the First International Congress of Geosciences: Innovatio...Leonid Krinitsky
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the use of low-frequency GPR Loza, for prospecting and exploration of mineral resources. Capabilities. Methodology. Examples. Comparison with other methods.
GPR Probing of Smoothly Layered Subsurface Medium: 3D Analytical ModelLeonid Krinitsky
油
An analytical approach to GPR probing of a
horizontally layered subsurface medium is developed, based on the coupled-wave WKB approximation. An empirical model of current in dipole transmitter antenna is used.
GPR survey of the bottom of Lake Chebarkul. Six years after the fall of the C...Leonid Krinitsky
油
GPR survey at the site of the fall of the Chelyabinsk meteorite, Lake Chebarkul, Chelyabinsk, Russia.
Studying the place of the fall of the Chelyabinsk meteorite in the winter of 2013, GPR-team returned to this place after 6 years.
Numerical studies of the radiation patterns of resistively loaded dipolesLeonid Krinitsky
油
This document describes a numerical study of the radiation patterns of resistively loaded dipole antennas. It computes the far field radiation patterns as a superposition of transient solutions for infinitesimal dipole elements. The current excitation for each dipole element is modeled as a half cycle of a sine squared waveform that propagates along the antenna at an adjustable speed. The radiation patterns are presented for different dielectric media to model antennas used in ground penetrating radar applications in various materials like water, ice, and soil. Comparisons are made to field observations.
Deep Penetration Radar. Exploration of Geological Substructures. Experimental...Leonid Krinitsky
油
When developing the "Loza" deep penetration radar, great efforts were taken to make the device's sounding depth attractive for geologists and geophysicists. Lozas deep penetration radar has the following characteristics; ultrahigh power, signal energy concentration in the low-frequency spectrum area, large dynamic range of reflected signal recording [1], enabling the GPR to be applied in the exploration of subsurface structures to depths of 100-150 meters in heavy-textured low-resistivity soils and up to 200-300 meters in high-resistivity rocks.
GPR INVESTIGATION es una empresa dedicada a la prospecci坦n geof鱈sica geol坦gica exploraci坦n y estudio del subsuelo con tecnolog鱈a rusa de 炭ltima generaci坦n, mediante metodolog鱈a de Georadar (GPR Radar de Penetraci坦n Terrestre) NO INVASIVA y AMIGABLE con el medio ambiente.
Equipo basado en un m辿todo innovador en la geof鱈sica cerca de la superficie.
La principal caracter鱈stica distintiva del GPR Loza es la acumulaci坦n de energ鱈a en un 炭nico impulso de alta tensi坦n transmitido en vez de la s鱈ntesis de la se単al recibida mediante el procesamiento estrobosc坦pico repetitivo.
Deep Penetration Radar: Hydrogeology and Paleorelief of Underlying MediumLeonid Krinitsky
油
We discuss geophysical applications of enhanced-power ground penetrating radar. Its technical characteristics assure penetration depth and resolution sufficient for probing weak subsurface boundaries, such as buried riverbeds or interfaces between natural and artificial grounds. Examples of deep GPR scans demonstrate weak protracted echo signals originated at smooth permittivity gradients of the subsurface medium. Their quantitative interpretation can be done with the help of time-domain version of coupled WKB approximation.
Paper presented at the First International Congress of Geosciences: Innovatio...Leonid Krinitsky
油
the use of low-frequency GPR Loza, for prospecting and exploration of mineral resources. Capabilities. Methodology. Examples. Comparison with other methods.