What is Spatial Resolution or GSD in Remote Sensing?

 

🌍 What is Spatial Resolution in Remote Sensing 🛰️

• Spatial resolution or Ground Sample Distance (GSD) is a key factor in remote sensing, defining the level of detail captured in an image.
• The spatial resolution specifies the pixel size of images from Remote Sensing sensor corresponding to coverage area in the earth surface.
• It is depending on the sensor width, focal length and the altitude at which the images are captured.
• It simply refers the visual clarity of the earth images captured by the remote sensing sensor or how much detail in image is visible to the human eye to distinguish the earth feature.

Spatial Resolution in Remote Sensing Image

From the above picture 0.3-meter resolution is consider as high spatial resolution image because one pixel represents one 30 centimeter object in ground.

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