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CLIM - The Cloud Imager

Cloud Imager is a spectral imager, based on a three mirror anastigmat optical design (TMA). In the focal plane of the TMA, both a VNIR and SWIR detector are present. The design is largely based on the Vegetation Instrument, flown on the PROBA-V mission.

Instrument Description

Copernicus is the core satellite Earth Observation Program of the European Commission, as well as a cornerstone mission of the European Space Agency’s (ESA) activities in the field. It provides earth observation data for environmental protection, climate monitoring, natural disaster assessment and other scientific challenges.

The objective of the ESA Copernicus
CO2M Mission is to provide the European Union with the capacity to monitor anthropogenic CO2 emissions.

CLIM is one of the spectrometers of the CO2M payload that has CO2I as its main instrument. The major purpose is to determine the presence and the position of the clouds in the CO2I field of view, with the aim to support the data screening and LoS analysis.

CLIM consists of two subunits:
• A CLIM OU (CLIM Optical Unit)
• A CLIM EU (CLIM Electronics Unit)

The CLIM OU is the optical heart of the spectrometer, containing all the optical elements. The CLIM EU has a box-like structure, which houses the main electrical systems. It is the CLIM interface towards the spacecraft.

CLIM is part of the Copernicus CO2M Program (ESA). OHB System is the mission prime contractor for the CO2M mission. Thales Alenia Space (TAS) is acting as the prime contractor CLIM – The Cloud Imager for OHB, handling the development of the CO2M payload.

ESA aims to launch CO2M in 2026 and is expected to provide data from then onwards, in order to support the second global stocktake of greenhouse gas emissions.

Mission

Copernicus is the core satellite Earth observation program of the European Commission and a cornerstone of the European Space Agency (ESA) activities in the field as well. It provides Earth observation data for environmental protection, climate monitoring, natural disaster assessment and other social tasks.

The objective of the ESA Copernicus Anthropogenic Cardon Dioxide Monitoring (CO2M) mission is to provide the European Union with an operational capacity that contributes to the global monitoring of anthropogenic CO2 emissions produced by human activity, in the context of emissions reduction commitments from the Nationally Determined Contributions (NDCs) that all countries of the world have taken in the Paris Agreement on Climate.

The primary objective of the CO2 Monitoring mission is to measure images of total column CO2 with the resolution, accuracy, time sampling and spatial coverage required to provide the key space component input of the Operational Anthropogenic CO2 Emissions Monitoring & Verification Support (MVS) Capacity. Meeting the mission objective of the space component will enable to meet the high-level objectives of the MVS Capacity, which are

  • to detect emitting hot spots, such as megacities & power plants,
  • to monitor hot spot emissions to assess emission reductions/increase,
  • to assess emission changes against local reduction targets to monitor impacts of national contributions
  • to assess the national emissions and changes in 5-year time steps to estimate the global stock take.

ESA aims to launch CO2M by the end of 2025, and is expected to provide data from 2026 to support the second global stocktake of greenhouse gas emissions, to be concluded in 2028, by countries participating in the Paris Agreement

OIP’s Participation

OIP, as subcontractor to TAS, is delivering the CLIM instrument as part of the CO2M payload.

The CLIM spectral imager is based on the concept/design of the successful Vegetation Instrument, flown at the PROBA-V mission.

Status

The contract was awarded to OIP in the summer of 2020. The project is in the early stages.

Partners

CLIM is part of the Copernicus programme (ESA), for which OHB System is the Mission Prime contractor.

Thales Alenia Space (TAS) is acting as partner (Prime Contractor) to OHB for the development of the CO2M payload.

OIP, as subcontractor to TAS, is delivering the CLIM instrument as part of the CO2M payload. For this task, OIP will rely on a specific chain of subcontractors – based on the heritage of PROBA-V – such as DSI GmbH (D), Teledyne-e2v (UK), Xenics (B), Centre Spatial de Liège (B), AMOS (B), …

 

 

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