Spatial resolution refers to the level of detail or the smallest object that can be distinguished in an image, typically from satellite, aerial, or drone-based imaging systems. It defines the pixel size of an image that represents the ground area.
Key Points about Spatial Resolution
Definition:
It is usually expressed as the size of one pixel in ground distance, such as 10 meters, meaning one pixel represents a 10 × 10-meter area on the ground.
High Spatial Resolution:
Smaller pixel size (e.g., 30 cm).
Captures finer details.
Useful for applications like urban planning, disaster response, and precision agriculture.
Low Spatial Resolution:
Larger pixel size (e.g., 1 km).
Provides less detail but covers larger areas.
Suitable for large-scale monitoring, like climate studies or vegetation mapping.
Examples of Spatial Resolution in Remote Sensing:
High-Resolution Sensors:
Commercial satellites like WorldView-3: ~30 cm resolution.
Drones can provide sub-centimeter resolution.
Moderate Resolution Sensors:
Landsat satellites: ~30 meters resolution.
Low-Resolution Sensors:
MODIS: ~250 meters to 1 km resolution.
Impact on Applications:
High Resolution: Allows for identification of small objects, such as cars or individual trees.
Low Resolution: Best for observing large-scale phenomena, like changes in forest cover or weather patterns.
Relationship with Other Types of Resolution
Spectral Resolution: The ability to differentiate between wavelengths or bands of light.
Temporal Resolution: How often a sensor captures data of the same location.
Radiometric Resolution: The ability to detect differences in intensity or brightness.
Spatial resolution is a critical factor in determining the suitability of an imaging system for a specific application.
For more information on spatial resolution on satellite, aerial, or drone-based imagery , please feel free to contact us at:
Email: info@geowgs84.com
USA (HQ): (720) 702–4849
India: 98260-76466 - Pradeep Shrivastava
Canada: (519) 590 9999
Mexico: 55 5941 3755
UK & Spain: +44 12358 56710
Fireboy And Watergirl is a great cooperative game for two players. Each level is creatively designed with interesting puzzles that require close coordination and logical thinking. A great way to practice teamwork!