Spectral Library for Various Rocks and Minerals of Salem District: A Comparative Study and Validation with ASTER Data

The significance of the study is to create a spectral library for the mineral Garnet. The spectra for Garnet created in the darkroom environment for the study. The laboratory spectra created matched with the USGS spectral library and made confirmation for the spectra. For the spectral resampling and spectral matching, ASTER data used as the reflectance file. The wavelength of the laboratory spectra is between 0.556 to 2.4 micrometres. The highest reflectance spectral curve of the laboratory spectra shows 1.00 reflectance value and the wavelength is 0.807 μm. The USGS spectra also indicate the same value and wavelength. The absorption value changes in lab spectra at 0.57 reflectance value at the wavelength of 1.65 μm. The USGS spectra display 0.506 absorption value at the same wavelength of the laboratory spectra. The USGS spectra of the Garnet shows that the Garnet collected from the study area is Spessartine garnet. The laboratory spectral library thus created can be used for the mineral identification and also the spectral library thus created can use for further studies.

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Comparative Study of Landsat and Aster Data by Morphometric Analysis

Civil Engineering Journal ◽

10.28991/cej-2015-00000007 ◽

2015 ◽

Vol 1 (2) ◽

pp. 21-25 ◽

Cited By ~ 4

Author(s):

Sujit Kumar ◽

Tapasi Bhandary

Keyword(s):

Comparative Study ◽

Morphometric Analysis ◽

Axial Length ◽

Order Stream ◽

Average Width ◽

First Order ◽

Aster Data ◽

Digital Elevation ◽

Elevation Model

In this paper, a case-study is presented to differentiate between Landsat and Aster data by morphometric analysis. For this the Aster and Landsat digital elevation model (DEM) data of the same study area was taken and then both the data was delineated for the same (common) outlet. The major differences found in between Landsat and Aster data after delineation are in the number of first order stream, axial length of streams, average width and size of watershed. The case study presented will be useful in demonstrating the fact that Landsat DEM has better accuracy than Aster DEM for land cover areas when the DEM data characteristic are kept similar.

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A Comparative Study on Financial Performance of the Primary Agricultural Co-Operative Credit Societies for Pre-Waiver and Post Waiver Period On 31.03.2006 in Mettur Taluk, Salem District, Tamilnadu State

Indian Journal Of Applied Research ◽

10.15373/2249555x/jan2014/3 ◽

2011 ◽

Vol 4 (1) ◽

pp. 7-9

Author(s):

M.Govindan M.Govindan ◽

Keyword(s):

Comparative Study ◽

Financial Performance ◽

Salem District

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Creation of Laboratory Spectral Library of Beryl in Sevapure Area, Kadavur Basin, Karur District, Tamilnadu

International Journal of Engineering and Advanced Technology - Regular Issue ◽

10.35940/ijeat.a2967.109119 ◽

2019 ◽

Vol 9 (1) ◽

pp. 5325-5327

Keyword(s):

Spectral Reflectance ◽

Spectral Library ◽

Reflectance Curve ◽

Aster Data ◽

Value Changes ◽

High Absorption

The study aims to create a laboratory spectral library for the mineral beryl by using the spectroradiometer instrument and the Envi software. The mineral collected from Sevapure area of Kadavur Basin. The laboratory spectra were created and matched with the USGS spectral library. For the study of the spectra an imagery file platform is needed and the ASTER data used as the platform. The laboratory spectra formed between 0.556 to 2.4-micrometre wavelengths. The spectral reflectance curve shows the reflectance values from 0.09 to 0.33 micrometres and the high absorption takes place at 0.80 μm. The USGS spectra show the same value at the wavelength and the reflectance value changes as 0.55. Both shows maximum reflectance at 1.00 and the wavelength at 1.65 μm. The spectral library created has used for further studies.

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