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Tuesday, May 5, 2020 | History

2 edition of Spectral reflectance characteristics of rock varnish in arid areas. found in the catalog.

Spectral reflectance characteristics of rock varnish in arid areas.

Kevin White

Spectral reflectance characteristics of rock varnish in arid areas.

by Kevin White

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  • 36 Currently reading

Published by University of Oxford School of Geography in Oxford .
Written in English

    Subjects:
  • Rocks -- Spectra.

  • Edition Notes

    SeriesResearch papers / University of Oxford School of Geography -- 46
    ContributionsUniversity of Oxford. School of Geography.
    The Physical Object
    Pagination38p. :
    Number of Pages38
    ID Numbers
    Open LibraryOL13921179M

    Mainguet, M. Conséquences géomorphologiques de l'action du vent dans les régions de dunes en zones arides et semi-arides (Geomorphological consequences of aeolian action in dune areas in arid and semi-arid regions). Geneva: World Meteorological Organization (WMO), WCP , WMO-TD 49, pp. (in French) Mainguet, M. Implications of a sandblasting model for dust production by wind erosion in arid areas. In: Skidmore, E.L. and Tatarko, J. (eds), Wind Erosion - Proceedings of an International Symposium/Workshop, June , Manhattan, Kansas.

    Fig. V-I characteristics of p-n junction diode. (i) Circuit diagram (ii) Characteristics The V-I characteristics of a semiconductor diode can be obtained with the help of the circuit shown in fig. (i) The supply voltage V is a regulated power supply, the diode is forward biased in the circuit shown. The resistor R is a current limiting. identification of the environmental characteristics of urban areas as a factor of formation of real estate prices; prospects of implementation of the practice of "green office" or "sustainable office" in russia. indications of megalithic culture on the island of bali in indonesia; interactive visualization tool – invito for sustainable planning.

    correlations and regression mathematical to etablish the geomechanical characteristics of magmatic rock in south apuseni CREATION AND PROTECTION OVER INCRUSTATION AND RUSTING ON THE HOT-WATER PIPELINE DURING USING OF GEOTHERMAL WATER FROM DURKOV AT THE GTD-1, 2, 3 DRILL HOLES. unique characteristics of the land we are managing. unrepresentative high disturbance areas); (2) no plots on rock outcrops or slopes greater than 50 percent (these areas are unlikely to be In most arid and semi-arid areas, ft2 is the best size. As production and plant density.


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Spectral reflectance characteristics of rock varnish in arid areas by Kevin White Download PDF EPUB FB2

Additional Physical Format: Online version: White, Kevin. Spectral reflectance characteristics of rock varnish in arid areas. Oxford [England]: School of Geography, University of Oxford,   These weathering processes alter the shape, overall reflectance values, and certain absorption characteristics of different rock types in arid and semi-arid environments.

Weathering processes result in the formation of new materials that differ both chemically and mechanically from the original parent rock [ 13, 42 ].Cited by: 2. Abstract. Alluvial fans are semi-conical landforms composed of stream deposits and debris flow materials where a canyon exits a mountain range.

Alluvial fans are built in semi-arid, humid-temperate, and proglacial regions (RachockiNilsen and Moore ), but they have been studied more in deserts than in any other environment (BullGraf ).Cited by: The effects of grain size variations on rock and mineral reflectance spectra and of solid surfaces versus powders have been the topic of numerous studies.

Other spectral characteristics (such. The steeper profiles of the reflectance curves observed for weathered surfaces may be attributed to the formation of rock coatings and varnish, which are commonly encountered in semiarid to arid.

The 12 geologic end members can be grouped into (1) peridotites, (2) iron oxide and/or hydroxide weathering, (3) clastic metasediments, (4) carbonate rocks, (5) lichen-rock mixtures, and (6) varnish, based on spectral features (e.g.

Fe2+, Fe3+, Fe-OH, Mg-OH, Al-OH, CO3) and comparisons with field and laboratory spectra. Spectral measurements. Proc. SPIEGeology from Space, pg 2 (30 December ); doi: / For the purposes of this chapter, the transect across the roof of the world illustrates a serious flaw in attempts to map geographical variability in rock coatings.

Asymmetry in Rock Coatings and Landscape Aesthetics Rock coatings are ubiquitous in both the cool and wet Khumbu of Nepal and the cold and dry West Kunlun Mountains of Tibet. The varnish coating, which can mask the spectral response of the rock's mineral assemblages, strongly depends on weathering and erosion characteristics modulated by rock mineralogy and texture (Rivard et al., ).

The foliated metaturbidites are generally covered by a surface regolith composed of varnished platy-like slabs, detached from the Cited by: For each spectral sample location, three spectral measurements were collected over a 1 m 2 target area.

Each spectral measurement was the average of 50 sampled spectra, acquired under clear skies between two hours before and two hours after local noon. The field of view was set at 8° and the sensor head located 1 m above the by: 6. Ogawa, K., S.

Rokugawa, T. Matsunaga and Y. Ninomiya. Evaluation of thickness of desert varnish coatings on rock using thermal infrared remote sensing. Measurements of thermal infrared spectral reflectance of frost, snow, and ice.

Journal of Geophysical Research, 99(B12): Remote Sensing of Urban Areas, Regensburger. Simone De Angelis, Paola Manzari, Maria Cristina De Sanctis, Francesca Altieri, Cristian Carli and Giovanna Agrosì, Application of spectral linear mixing to rock slabs analyses at various scales using Ma_Miss BreadBoard instrument, Planetary and Space Science, /,(), ().Cited by: White, K.,Spectral reflectance characteristics of rock varnish in arid areas, School of Geography University of Oxford Research Paper 1– Google Scholar White, K., a, Image processing of Thematic Mapper data for discriminating piedmont surficial materials in the Tunisian Southern Atlas, International Journal of Remote Sensing Cited by: The spectroscopy of minerals is based on decades of published research [3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20], which have highlighted those wavelength regions where specific minerals and mineral groups possess diagnostic features, including: (i) the Visible and Near-InfraRed (VNIR, to nm)—transition element-bearing Cited by: 9.

Full text of "Imaging spectrometry [electronic resource]: basic principles and prospective applications" See other formats. AVIRIS spectral trajectories for forested areas of Gifford Pinchot National Forest, Proc.

5th Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) Workshop, Vol. 1., Jet Propulsion Laboratory PublicationJet Propulsion Laboratory, Pasadena, CA., Spectral mixing is a problem inherent to remote sensing data and results in fewimage pixel spectra representing "pure" targets.

Linear spectral mixture analysis isdesigned to address this problem and it assumes that the pixel-to-pixel variability in ascene results from varying proportions of spectral endmembers.

In this paper we present adifferent endmember-search algorithm Cited by: Ogawa, K., S. Rokugawa, T. Matsunaga, and Y. Ninomiya () Evaluation of thickness of desert varnish coatings on rock using thermal infrared remote sensing, Remote Sensing Society of Japan, 19(1): Full text of "Nature and origin of secondary mineral coatings on volcanic rocks of the Black Mountain, Stonewall Mountain, and Kane Springs Wash.

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