Types and characteristics of commonly used remote sensing images?

Types and characteristics of commonly used remote sensing images

Color infrared aerial photograph.

Color infrared aerial photography is the most commonly used information in urban remote sensing. This kind of photography filters out the blue light in visible light and enhances the near infrared. Because the color of the imaged ground object is different from the color directly observed by human eyes (such as the vegetation is red), it is also called false color (or false color) aerial photography.

Compared with ordinary visible light (true color or black and white) aerial photos, this kind of photos have higher color saturation, stronger contrast and better definition, especially for vegetation and water bodies.

2. Microwave radar images.

Microwave can penetrate clouds, and can distinguish the water content of ground objects, the growth of plants, the flooded area and so on.

3.MSS and TM images.

MSS and TM images are provided by Landsat.

4.SPOT5 image.

It is equipped with two high-resolution geometric equipment, which is characterized by excellent on-board storage capacity, which optimizes data storage, recording and playback.

5. Meteorological satellite images.

At present, China's own meteorological satellite and NOAA images are commonly used. Meteorological satellites can scan the same place several times a day and can be used to observe the changes of urban heat islands.

6. High spatial resolution satellite images

With the development of remote sensing technology, high spatial resolution satellite images have been widely used, providing more detailed information for urban monitoring at lower cost.

7. The influence of hyperspectral remote sensing satellites

Hyperspectral remote sensing is the abbreviation of hyperspectral resolution remote sensing, which is a technology to obtain many very narrow and continuous image data in visible, near-infrared, mid-infrared and thermal infrared bands of electromagnetic spectrum.

8. Lidar data

Lidar is an observation technology that directly obtains the three-dimensional coordinates of surface points of objects through observation data such as position, distance and angle.

9. China-Brazil Earth Resources Satellite and Beijing-1 Small Satellite

China-Brazil Earth Satellite refers to CBERS- 1 and CBERS-2 satellites jointly operated by China and Brazil. Beijing-1 is a small Earth observation satellite equipped with medium and high resolution dual remote sensors.

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