On the reflectance spectroscopy of snow

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August undefined, 2024

Web20 de jul. de 2024 · DOI: 10.5194/TC-12-2371-2024 Corpus ID: 55371023; On the reflectance spectroscopy of snow @article{Kokhanovsky2024OnTR, title={On the … WebReflectance spectroscopy provides much of our knowledge about the compositions and physical properties of planetary, satellite, and asteroid surfaces. Two complementary aspects of reflectance spectroscopy are exploited in studies of icy satellites and other bodies. One approach, spectroscopic analysis, derives information about surface ...

On the reflectance spectroscopy of snow - Mendeley

WebIce and snow generally show a high degree of reflection at visible wavelengths (VIS; ca 0,4 – 0,75 µm), lower reflection in the NIR (Near InfraRed, wavelength ca 0,78 - 0,90 µm) and very low reflection in the SWIR (ShortWave InfraRed, wavelength ca 1,57 - 1,78 µm). The low reflection of ice and snow in the SWIR is related to their ... Web22 de set. de 2024 · This study aimed to assess the ability of using visible and near-infrared reflectance (Vis–NIR) spectroscopy to quantify soil erodibility factor (K) rapidly in an … greek temple painted

Contact spectroscopy for determination of stratigraphy of snow …

Web1 de jan. de 2001 · Using the relationship, Ca = 922.61 exp (13.56 I680), we inverted Airborne Visible Imaging Spectrometer (AVIRIS) data for algae concentration. In the 5.5 km2, imaged region, the mean algal ... Websensitivity study applies two spectroscopy models to synthetic images of the spectral hemispherical–directional reflectance factor (HDRF) with prescribed snow-covered area and snow grain size. Web6 de abr. de 2024 · The new NIRbox method was shown to be a low-cost, easy-to-use method for measuring reflectance at wavelengths sensitive to snow and SSL microstructure. In this study, the NIRbox was used to measure the surface reflectance at 850 nm without any influence from incoming radiation (as shown through the reference … flower delivery pennington nj

On the reflectance spectroscopy of snow - Semantic Scholar

The effect of anisotropic reflectance on imaging spectroscopy of …

Web29 de fev. de 2004 · 1.. IntroductionSeveral models for mapping snow properties from imaging spectrometer data Green et al., 2002, Nolin & Dozier, 2000, Painter et al., 2003, Painter et al., 1998 incorporate the wavelength range 1.0≤λ≤1.5 μm, where snow reflectance is most sensitive to grain size. However, for a given solar geometry, the … Web14 de jan. de 2011 · Reflectance spectroscopy has several advantages compared to traditional chemical methods in paleolimnology. It requires little cost, involves minimal or no sample preparation and is rapid. There has, however, been limited use of reflectance spectroscopy in polar paleolimnological studies. This paper explores the application of … flower delivery pearl river nyWebWe propose a system of analytical equations to retrieve snow grain size and absorption coefficient of pollutants from snow reflectance or snow albedo ... On the reflectance spectroscopy of snow. Kokhanovsky A; Lamare M; Di Mauro B; et al. See more; Cryosphere (2024) 12(7) 2371-2382. DOI: 10.5194/tc-12-2371-2024. 32 Citations. … flower delivery penn valley ca

"WebReview of ‘On the reflectance spectroscopy of snow ... 174-175), and 4 wavelengths measurements to derive Ro, l, m, and f from snow reflectance (see lines 114-116). I don’t believe the authors discuss using only 1 or 2 wavelength measurements " - On the reflectance spectroscopy of snow

On the reflectance spectroscopy of snow

Web20 de jul. de 2024 · We propose a technique to retrieve the concentration of snow impurities (dust, soot, see [3]), which is possible only for the cases of relatively heavy (above 1 … Web18 de out. de 2024 · Finally, spectral “signatures” are identified that could be used to identify biology in snow and ice from remotely sensed spectral reflectance data. Our simulations not only indicate that algal blooms can influence snowpack albedo and melt rate but also highlight that “indirect” feedback related to their presence are a key uncertainty that must …

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Web1 On the reflectance spectroscopy of snow 2 Alexander Kokhanovsky(1), Maxim Lamare (2,3), Biagio D i Mauro(4 ), Ghislain Picard WebSpectroscopy, primarily in the electromagnetic spectrum, is a fundamental exploratory tool in the fields of astronomy, chemistry, materials science, and physics, allowing the …

Web2 de jul. de 2024 · Different materials on Earth’s surface have different spectra because they reflect sunlight in different ways. (Human eyes can distinguish between snow, water, vegetation, and soil based on their color, which is a result of the various wavelengths they reflect.) Earth scientists use reflectance spectroscopy to study rocks, soil, ocean water ... Web11 de jul. de 2008 · Abstract: Field spectroscopy is an effective means to determine the reflectance of different terrain surfaces for the development and validation of monitoring systems using Earth Observation data. The objective of this investigation is to examine the variability of snow and forest canopy reflectance in the boreal forest area in order to …

WebSeasonally snow-covered areas in the Earth's mountains are an integral component of the global hydrologic cycle. These regions account for the majority of fresh water resources … Web1 de out. de 1998 · The bidirectional reflectance distribution function (BRDF) changes over the course of a day as the solar azimuth changes relative to the sastrugi axis. The normalized BRDF, or “anisotropic reflectance factor” R , was measured at South Pole Station from a 22-m tower at 600, 660, and 900 nm wavelengths.

WebReflectance spectroscopy has been widely used to obtain TFV-related soil properties (e.g., ... -We determined compositions of dust-in-snow from the Wasatch Range (UT, USA).

WebWe propose a system of analytical equations to retrieve snow grain size and absorption coefficient of pollutants from snow reflectance or snow albedo... DOAJ is a unique and … flower delivery penrithWebfrom snow reﬂectance or snow albedo measurements in the visible and near-infrared regions of the electromagnetic spec- trum, where snow single-scattering albedo is … flower delivery pereira colombiaWebResearch on fatty acids (FA) is important because their intake is related to human health. NIRS can be a useful tool to estimate the FA of beef but due to the high moisture and the … flower delivery peonyWebbihemispherical reflectance and bidirectional reflectance factors versus hemispherical-directional reflectance factors are shown. Differences of these quantities are exemplified using modelling re-sults of a black spruce forest canopy, snow cover, as well as an artificial target. The actual differ- greek temples of paestumWeb29 de fev. de 2004 · 1.. IntroductionSeveral models for mapping snow properties from imaging spectrometer data Green et al., 2002, Nolin & Dozier, 2000, Painter et al., 2003, … flower delivery perry gaWeb1 de out. de 2024 · The snow and ice surface is usually very “bright” at visible wavelength and “dark” at NIR wavelength. The polarized reflectance of the snow and ice surface in the forward scattering direction can be up to two times greater than that of forests [5]. Consequently, the existing semi-empirical BPDF models may not be suitable for the … flower delivery penzanceWebResearch on the Rapid Detection Model of Tomato Sugar Based on Near-Infrared Reflectance Spectroscopy: CUI Tian-yu 1, LU Zhong-ling 1, 2, XUE Lin 3, WAN Shi-qi … flower delivery penticton bc