Gaofen
Gaofen is a series of Chinese civilian Earth observation satellites. Launched and operated by the China National Space Administration (CNSA), the Gaofen program is a component of China's High-resolution Earth Observation System (CHEOS). The goal of the Gaofen program is to provide high-resolution imagery for a wide range of applications, including environmental monitoring, disaster management, resource surveying, urban planning, and agricultural monitoring.
The Gaofen constellation includes a variety of satellite types equipped with different sensors, covering optical, radar, and infrared wavelengths. This allows for diverse observation capabilities, including day/night and all-weather imaging. The program emphasizes both spatial and temporal resolution, aiming to provide frequent and detailed imagery of specific areas.
Key features of the Gaofen program include:
- High Resolution: Gaofen satellites are designed to capture images with spatial resolutions ranging from sub-meter to several meters, depending on the specific sensor and satellite.
- Multiple Sensors: The constellation incorporates various types of sensors, including panchromatic, multispectral, synthetic aperture radar (SAR), and hyperspectral imagers.
- Wide Coverage: The program aims for comprehensive coverage of the Earth's surface, allowing for monitoring of various regions and phenomena.
- Data Availability: Gaofen data is intended for use by both government agencies and commercial entities, contributing to a broader understanding of the Earth's environment and resources.
The Gaofen program represents a significant investment in China's space-based Earth observation capabilities and plays an important role in supporting national development goals.