GK
ECOLOGY BIODIVERSITY CONSERVATION ENVIRONMENTAL ISSUES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Pigmentation in the leaf
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Structure of the leaf
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Moisture content of the leaf
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All the above characters
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Detailed explanation-1: -According to the fig. in the last link the vegetation has maximum reflectance around 0, 75µm to 1, 4µm. Green leaves reflect green and yellow light as well as infra-red :) Chlorophyll presents higher absorption values in the visible spect, specially in the blue and red bands.
Detailed explanation-2: -In remote sensing, a detector measures the electromagnetic (EM) radiation that is reflected back from the Earth’s surface materials. These measurements can help to distinguish the type of land covering. Soil, water and vegetation have clearly different patterns of reflectance and absorption over different wavelengths.
Detailed explanation-3: -Reflected near-infrared radiation can be sensed by satellites, allowing scientists to study vegetation from space.
Detailed explanation-4: -In remote sensing, we are most interested in measuring the radiation reflected from targets. We refer to two types of reflection, which represent the two extreme ends of the way in which energy is reflected from a target: specular reflection and diffuse reflection.