Earth Explorer 6 – EarthCARE

The European Space Agency (ESA) Earth Explorer 6 – EarthCARE is a collaborative mission between ESA and the Japan Aerospace Exploration Agency (JAXA). The mission aims to improve our understanding of the Earth's atmosphere and its interaction with clouds and aerosols. In this article, we will discuss the mission's background, objectives, implementation, costs, and achievements.

Background:

EarthCARE is part of ESA's Earth Explorer program, which focuses on the development of innovative missions that advance our understanding of the Earth system. EarthCARE is the sixth mission in this program and was selected in 2005 following a competitive selection process. The mission's development is a collaborative effort between ESA and JAXA, with ESA leading the overall mission and JAXA providing the Cloud Profiling Radar (CPR) instrument.

Objectives:

The primary objective of the EarthCARE mission is to improve our understanding of the Earth's atmosphere and its interaction with clouds and aerosols. The mission aims to achieve this objective by measuring the properties of clouds and aerosols and their impact on the Earth's energy budget and climate. The mission also aims to improve our understanding of the role of clouds and aerosols in the water cycle, as well as their impact on air quality and weather forecasting.

Implementation:

The EarthCARE mission consists of four instruments that will be carried on a single spacecraft. These instruments are:

Atmospheric Lidar (ATLID): This instrument uses laser light to measure the vertical distribution of aerosols and clouds in the atmosphere.

Multi-Spectral Imager (MSI): This instrument will measure the spatial distribution of clouds and aerosols in the atmosphere using a combination of visible, near-infrared, and shortwave infrared wavelengths.

Broadband Radiometer (BBR): This instrument will measure the energy budget of the Earth's atmosphere, including incoming solar radiation and outgoing thermal radiation.

Cloud Profiling Radar (CPR): This instrument, provided by JAXA, will measure the vertical structure of clouds, including their thickness, altitude, and water content.

The EarthCARE spacecraft will be placed in a sun-synchronous orbit at an altitude of approximately 400 km. The mission is expected to have a lifetime of three years.

Costs:

The cost of the EarthCARE mission is estimated to be around €500 million. This includes the development and construction of the spacecraft and instruments, as well as the launch and operations of the mission.

Achievements:

The EarthCARE mission was originally scheduled to launch in 2013 but has been delayed several times due to technical issues and funding constraints. The current launch date is set for 2024.

Once launched, the EarthCARE mission is expected to provide significant advances in our understanding of the Earth's atmosphere and its interaction with clouds and aerosols. The mission will contribute to a better understanding of the Earth's energy budget and climate, as well as improving weather forecasting and air quality monitoring.

In conclusion, the EarthCARE mission is an important collaborative effort between ESA and JAXA to advance our understanding of the Earth's atmosphere and its interaction with clouds and aerosols. The mission's objectives, implementation, costs, and achievements are all aimed at improving our understanding of the Earth system and its impact on our environment and society.

One of the major achievements of the EarthCARE mission will be its ability to provide more accurate data on the vertical structure of clouds, which is critical for improving weather forecasting and climate modeling. The mission's measurements of the energy budget of the Earth's atmosphere will also provide valuable insights into the Earth's climate system and its response to changes in atmospheric composition. In addition, the EarthCARE mission will contribute to the development of new technologies and methodologies for remote sensing of the Earth's atmosphere, which will have broader applications in fields such as agriculture, forestry, and disaster management. Overall, the EarthCARE mission is a significant step forward in our understanding of the Earth's atmosphere and its role in shaping our planet's environment and future.