Sea-level monitoring satellite Sentinel-6B sets sail – European Space Agency

Copernicus Sentinel-6B Mission Report: Advancing Sustainable Development Goals
Introduction: Mission Overview and Contribution to Global Goals
The Copernicus Sentinel-6B satellite has commenced its transit from Europe to the Vandenberg Space Force Base in California for a scheduled launch in November. This mission is fundamental to the continuation of long-term sea-level monitoring, providing critical data that directly supports the United Nations’ Sustainable Development Goals. By delivering precise measurements of sea-surface height, the mission is an essential tool for addressing SDG 13 (Climate Action) and SDG 14 (Life Below Water).
The satellite will extend a vital climate data record that began in 1992, ensuring the continuity of sea-level measurements through at least 2030. This information is indispensable for understanding climate change, improving weather forecasts, and protecting coastal communities worldwide.
Logistical Operations and Launch Preparations
The satellite’s journey and pre-launch schedule have been meticulously planned to ensure its safe arrival and readiness.
- Testing and Checks: Earlier this year, Sentinel-6B was removed from storage and underwent a comprehensive series of checks at IABG in Ottobrunn, Germany.
- Transport to Port: The satellite was transported by lorry to Bremen, Germany.
- Transatlantic Voyage: Carefully packed in a climate-controlled container, the satellite is currently aboard the cargo ship Industrial Dolphin for a three-week voyage across the Atlantic Ocean to Galveston, Texas.
- Final Ground Transit: Upon arrival in the US, it will be transported by road to NASA’s facilities at the Vandenberg Space Force Base.
- Pre-Launch Phase: The satellite will be stored until early October, when final launch preparations will commence for its November launch.
Technical Specifications and Data Continuity for Climate Action
Sentinel-6B is designed to provide the highest standard of data accuracy, building on a legacy of previous altimetry missions. Its technical capabilities are central to achieving the objectives of SDG 13 by providing unambiguous evidence of climate change impacts.
- Tandem Orbit: For its first year in orbit, Sentinel-6B will fly in tandem with its identical predecessor, Sentinel-6 Michael Freilich (launched in 2020). This allows for precise cross-calibration, ensuring the data record remains consistent and reliable.
- Primary Instrument: The Poseidon-4 dual-frequency radar altimeter, developed by ESA, measures sea-surface height, significant wave height, and wind speed.
- Supporting Instrument: An advanced microwave radiometer, provided by NASA, corrects for atmospheric water vapor, which can affect the accuracy of the radar pulses. This enhances the precision of the sea-level data.
The data gathered will support operational oceanography and improve the models used to track and predict the effects of a changing climate.
International Collaboration for Global Goals (SDG 17)
The Copernicus Sentinel-6 mission exemplifies the spirit of SDG 17 (Partnerships for the Goals). Its implementation is the result of an exceptional international cooperation dedicated to addressing the global challenge of sea-level rise.
Key Collaborating Partners:
- European Commission
- European Space Agency (ESA)
- National Aeronautics and Space Administration (NASA)
- European Organisation for the Exploitation of Meteorological Satellites (Eumetsat)
- National Oceanic and Atmospheric Administration (NOAA)
- Centre National d’Études Spatiales (CNES – French space agency)
This partnership ensures that the mission’s data is utilized globally to inform policy, support scientific research, and advance our collective response to climate change, directly contributing to the targets of SDG 13 and SDG 14.
Conclusion: A Legacy of Monitoring for a Sustainable Future
With its upcoming launch, the Copernicus Sentinel-6B satellite is set to continue a critical, three-decade-long legacy of sea-level observation. The mission’s high-precision data is not merely an academic exercise; it is a crucial resource for understanding and responding to the pressing challenges of climate change. By providing reliable information on sea-level rise, Sentinel-6B empowers global efforts to protect marine ecosystems, safeguard coastal populations, and build a more sustainable and resilient future in line with the Sustainable Development Goals.
Analysis of Sustainable Development Goals (SDGs) in the Article
1. Which SDGs are addressed or connected to the issues highlighted in the article?
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SDG 13: Climate Action
- The article’s central theme is the launch of the Copernicus Sentinel-6B satellite, whose primary mission is “monitoring sea-level rise.” This is described as one of “the most pressing challenges of our time,” directly linking the satellite’s function to understanding and responding to the impacts of climate change.
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SDG 14: Life Below Water
- The satellite’s mission is to “continue the vital record of sea-surface height measurements” and to measure “significant wave height and wind speed to support operational oceanography.” This contributes to the scientific understanding and monitoring of oceans, which is a core component of SDG 14.
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SDG 9: Industry, Innovation, and Infrastructure
- The article details a highly advanced piece of technology, the Sentinel-6B satellite, which is referred to as the “gold standard reference mission.” It describes its sophisticated instruments, such as the “Poseidon-4 dual-frequency… radar altimeter” and an “advanced microwave radiometer.” This represents significant investment in scientific and technological innovation and infrastructure.
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SDG 17: Partnerships for the Goals
- The article explicitly highlights that the mission is “the result of an exceptional cooperation between the European Commission, ESA, NASA, Eumetsat, and NOAA, with support from the CNES French space agency.” This multi-stakeholder, international partnership is a clear example of the collaboration required to achieve the SDGs.
2. What specific targets under those SDGs can be identified based on the article’s content?
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SDG 13: Climate Action
- Target 13.1: Strengthen resilience and adaptive capacity to climate-related hazards and natural disasters in all countries. The article states the mission provides “crucial” data for “understanding and responding to” sea-level rise. This data is fundamental for building resilience and adapting to coastal hazards.
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SDG 14: Life Below Water
- Target 14.a: Increase scientific knowledge, develop research capacity and transfer marine technology. The mission’s goal to “take the record of sea-surface height measurements into the future… with greater precision than ever before” directly addresses the need to increase scientific knowledge and research capacity regarding ocean health.
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SDG 9: Industry, Innovation, and Infrastructure
- Target 9.5: Enhance scientific research, upgrade the technological capabilities of industrial sectors in all countries… encouraging innovation. The development and launch of the Sentinel-6B satellite, with its advanced instruments developed by entities like Airbus and Thales Alenia Space, is a direct application of this target, showcasing enhanced scientific research and technological capability.
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SDG 17: Partnerships for the Goals
- Target 17.6: Enhance North-South, South-South and triangular regional and international cooperation on and access to science, technology and innovation. The collaboration between European (ESA, European Commission, Eumetsat, CNES) and US (NASA, NOAA) agencies is a prime example of international cooperation on science and technology.
- Target 17.16: Enhance the Global Partnership for Sustainable Development, complemented by multi-stakeholder partnerships. The article explicitly names the multiple organizations involved, demonstrating a multi-stakeholder partnership to achieve a common scientific goal.
3. Are there any indicators mentioned or implied in the article that can be used to measure progress towards the identified targets?
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SDG 13: Climate Action
- Indicator: Precision sea-level measurements. The article states the satellite’s purpose is to “continue the vital record of sea-surface height measurements” and extend “a legacy of over three decades of precision sea-level measurements.” This data serves as a direct indicator of climate change’s impact (sea-level rise).
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SDG 14: Life Below Water
- Indicator: Oceanographic data collection. The article specifies that the satellite’s radar altimeter measures “sea-surface height, significant wave height and wind speed.” The collection of this data is a direct indicator of increased scientific knowledge about the marine environment.
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SDG 9: Industry, Innovation, and Infrastructure
- Indicator: Development and deployment of advanced technology. The article describes the satellite itself, “Copernicus Sentinel-6B,” and its specific instruments like the “Poseidon-4 dual-frequency… radar altimeter” as tangible outputs of advanced technological development and innovation.
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SDG 17: Partnerships for the Goals
- Indicator: Existence of international, multi-stakeholder agreements and collaborations. The article explicitly lists the partners: “the European Commission, ESA, NASA, Eumetsat, and NOAA, with support from the CNES French space agency.” The formation and operation of this partnership is a direct indicator of progress towards this goal.
4. Summary Table of SDGs, Targets, and Indicators
SDGs | Targets | Indicators |
---|---|---|
SDG 13: Climate Action | 13.1: Strengthen resilience and adaptive capacity to climate-related hazards and natural disasters. | Precision sea-level measurements (“vital record of sea-surface height measurements”). |
SDG 14: Life Below Water | 14.a: Increase scientific knowledge, develop research capacity and transfer marine technology. | Collection of specific oceanographic data (“sea-surface height, significant wave height and wind speed”). |
SDG 9: Industry, Innovation, and Infrastructure | 9.5: Enhance scientific research, upgrade the technological capabilities of industrial sectors. | Development and deployment of advanced technology (the Sentinel-6B satellite and its Poseidon-4 radar altimeter). |
SDG 17: Partnerships for the Goals | 17.6: Enhance international cooperation on and access to science, technology and innovation. 17.16: Enhance the Global Partnership for Sustainable Development. |
The existence of the multi-stakeholder partnership (European Commission, ESA, NASA, Eumetsat, NOAA, CNES). |
Source: esa.int