Earth Explorer 7 – Biomass

Introduction

The European Space Agency (ESA) Earth Explorer 7 - Biomass is a satellite mission designed to measure the Earth's forests' biomass with unprecedented accuracy. This mission is part of the ESA's Earth Explorer program, which aims to provide data and insights into the Earth's natural systems, including its atmosphere, oceans, and land. This essay will discuss the mission's background, purpose, technological advancements, cost, and achievements.

Background

The Biomass mission was selected by ESA in 2013 as the seventh Earth Explorer mission, following the CryoSat-2 mission launched in 2010. The mission's primary objective is to measure the biomass of forests globally, which is essential for understanding the carbon cycle, climate change, and sustainable forest management. The mission's planning and development phase began in 2014, with a planned launch date of 2022.

Purpose

The Biomass mission aims to measure the biomass of forests globally, providing crucial data for understanding the carbon cycle and climate change. Forests are a critical component of the Earth's carbon cycle, absorbing and storing carbon dioxide through photosynthesis. Accurately measuring the amount of carbon stored in forests is essential for understanding the Earth's carbon budget, which influences climate change.

The mission will also provide critical information for sustainable forest management. Forests are under threat from deforestation, degradation, and fragmentation, which can lead to the release of stored carbon and biodiversity loss. Accurate measurement of biomass can help identify areas at risk and guide conservation efforts.

Technological advancements

The Biomass mission employs a unique and innovative radar technology called Pol-InSAR (Polarimetric Interferometric Synthetic Aperture Radar). This technology allows the mission to measure the vertical structure of forests and their biomass with unprecedented accuracy. The Pol-InSAR technique uses radar waves to penetrate the forest canopy and measure the amount of biomass in the forest.

The mission's radar instrument, called P-band Synthetic Aperture Radar (P-SAR), operates at a wavelength of approximately 70 centimeters, which allows it to penetrate through the forest canopy and measure the biomass of the forest floor. This wavelength also allows the mission to distinguish between different forest types, such as tropical and temperate forests, which have different biomass densities.

Cost

The Biomass mission has a total cost of approximately €420 million. This includes the development, launch, and operations of the satellite. The mission is funded by ESA and the European Union, with contributions from member states. The cost of the mission is considered reasonable compared to the potential benefits it can provide in terms of climate change and sustainable forest management.

Achievements

The Biomass mission has not yet been launched, with a planned launch date of 2022. However, the mission is expected to provide significant achievements in terms of understanding the Earth's carbon cycle and sustainable forest management. The mission's unique technology, Pol-InSAR, is expected to provide unprecedented accuracy in measuring forest biomass globally.

The mission's data is expected to contribute to several international efforts, such as the United Nations Framework Convention on Climate Change (UNFCCC) and the Intergovernmental Panel on Climate Change (IPCC). The data can also be used by countries to report on their emissions reductions and progress towards their climate goals.

Conclusion

The Biomass mission is an essential satellite mission that aims to measure the biomass of forests globally, providing crucial data for understanding the Earth's carbon cycle and climate change. The mission employs innovative Pol-InSAR radar technology that allows it to measure the vertical structure of forests and their biomass with unprecedented accuracy. The mission's data is expected to contribute significantly to international efforts to address climate change and sustainable forest management. The mission's total cost of approximately €420 million is considered reasonable compared to its potential benefits.

In conclusion, the Biomass mission is an important step forward in our understanding of the Earth's natural systems, and it highlights the role of space technology in providing crucial data for addressing global challenges. The mission's innovative technology and its focus on measuring forest biomass can contribute significantly to our efforts to mitigate climate change and promote sustainable forest management. The Biomass mission represents a significant investment in both technology and research, and its successful implementation can have far-reaching implications for our understanding of the Earth's natural systems and our ability to manage them sustainably.