China has achieved another milestone in its space endeavors with the successful launch of the Haiyang-2E (HY-2E) marine satellite, enhancing its ocean observation and environmental monitoring capabilities. The satellite was sent into orbit via a Long March 4B rocket, which departed from the Jiuquan Satellite Launch Center located in northwest China at 7:46 a.m. Beijing time on Thursday. This mission represents the 654th launch within the Long March rocket series, underscoring China’s expanding presence in space technology.
The HY-2E satellite, developed by the China Academy of Space Technology (CAST), joins the Haiyang-2 series, China’s pioneering satellite network dedicated to monitoring marine environmental dynamics. This new satellite replaces the HY-2B, which was launched in 2018, and will operate in tandem with the existing HY-2C and HY-2D satellites. The satellite constellation aims to provide continuous and comprehensive data to bolster marine observation and forecasting capabilities.
Equipped with four advanced microwave remote sensing instruments, the HY-2E is designed to gather intricate details about sea surface conditions. These instruments will monitor parameters such as sea surface height, wave height, wind fields, and sea surface temperature. The data collected is expected to significantly enhance marine weather forecasting, climate research, and studies of phenomena like El Niño, boosting the accuracy and reliability of oceanic observations.
Over the past decade, the Haiyang-2 satellite program has been instrumental in disaster prevention, maritime safety, and scientific research. These satellites have provided vital information for tracking typhoons, supporting tsunami early warning systems, and refining global numerical weather prediction models. Their data has also been crucial for marine resource management and national maritime security initiatives.
Beyond applications in weather and climate, the Haiyang-2 satellite series offers tangible benefits for the fishing and shipping industries. The data on ocean currents, winds, and waves assist in identifying productive fishing zones, enabling more efficient operations and cost reductions for vessels. Since the introduction of the HY-2B, these satellites have included an Automatic Identification System (AIS), which facilitates the continuous tracking of vessel positions, speeds, and identification details, thereby improving navigation safety on busy maritime routes.