Remote Sensing and GIS — DU B.Sc. (Hons.) Geology Previous Year Question Papers

(a) is the ratio of radiant energy reflected by target to the total incident energy. (b) The radiation of the sun peaks in the _ region while Earth's radiation peaks in the region of the \Spectrum. (c) The basic property that allows the identification of the object is called the remote sensing terminology. (d) The (e) Image is defined as the surface of the Earth's equal gravity field. which is approximately the same as object cause by change in viewing position. refers.to the apparent change in the relative position of the stationary (f) In unsupervised classification, the iterative adjustment of cluster centers continues until is minimized. (g) Satellite image showing bands parallel to contours`may indicate the strata can be determined using the V rule. beds. The of (h) The linear alignments of features on satellite images are often interpreted as scattering occurs when particles are approximately the same size as the wavelength of the incident radiation. ¢) An object measured 750 in on the ground will be measured scale. a) b) c) Explain the remote sensing process? What is the electromagnetic spectrum? How do the electromagnetic radiations coming from the sim interact with the atmosphere? Explain th? spectral reflectance curve and highlight its significance in remote sensing. Q. 3. Discuss how the remote sensing data can be used for the interpretation of the following: a) Earth surface processes b) Geological structure c) Lithology a) Compare the theoretical basis and decision rules of Parallelepiped and Minimum distance classifiers, highlighting their assumptions about spectral space. b) Explain the difference between low-pass, high-pass and edge filtering methods. Which filter should be utilized to enhance lineaments or faults in satellite imagery? Q. 5. Explai`n the followings: a) Geometric distortion b) Elements of image interpretation c) Interpolation techniques Q.6. Describe the various components, working Principle and geological applications of the Global Navigation Satellite System (GNSS). a) b) c) Describe photogranmetry and its various applications. Discuss the various applications of the Digital Elevation Models in terrain analysis. Differentiate between senscir errors and atmospheric scattering errors Q. 8. Write short notes on the followings: a) Cylindrical map projection b) Atmospheric windows c) Spatial and non-spatial data d) Digital image e) Radiometric resolution f) Hyperspectral sensor