GFZ German research centre for geo sciences

EO mission development and data processing

Our group focuses on the development of future EO sensors and state of the art data pre-processing algorithms. Our activities cover a broad spectrum of research fields such as hyperspectral sensors, sensor end-to-end simulations, night illumination, radiative transfer, atmospheric correction, big data processing, as well as geometric fusion of hyperspectral and Lidar data.

Environmental Mapping and Analysis Program

The Environmental Mapping and Analysis Program (EnMAP) is a German hyperspectral satellite mission that aims at monitoring and characterizing the Earth’s environment on a global scale. EnMAP was launched on the 1st April 2022 and provides operational, accurate and diagnostic surface parameters for terrestrial and aquatic ecosystems which are used in a range of application fields. EnMAP allows to quantify and model crucial ecosystem processes, to study the diverse effects of human interventions and to support the management of natural resources.

CHIME L2

The main objective of the project is to develop and to deliver several operational processors to be used by the Agency to generate Level-2A (or Level-2S) and Level-2B from the CHIME Earth observations as well as additionally, Level-2H/F to harmonize CHIME Level-A products with the ones of other current and future hyperspectral missions like EnMAP, PRISMA, EMIT, DESIS and SBG.

 

CHEES

 

The main objective of the project is the development of the end-to-end mission performance simulator for the "Copernicus Hyperspectral Imaging Mission for the Environment" (CHIME). It will be a powerful tool allowing to simulate the end-to-end performance of the mission - from the observed scene to the retrieved parameters.

 

Night Illumination

Artificial light is a unique signature of human activity, with strong correlations to population, economic development level, and electrification rate. It is also a form of global change that remains poorly understood, with consequences for ecosystem services and loss of biodiversity. The spectral, spatial, and temporal patterns of artificial light emission of cities are examined.

More details are available in our open access publication: http://www.mdpi.com/2072-4292/7/1/1

Contact

Account-Guest (Guest)
Dr. Christopher Kyba

Processing and fusion of multisensor remote sensing data (hyperspectral and LIDAR data)

Airborne multi-sensor remote sensing data requires careful processing using automatic, consistent, flexible and robust methods. In particular, the fusion of passive hyperspectral with active LIDAR sensor characteristics represents a current research focus. By integrating a high spectral with a high spatial and structural resolution, this type of data fusion allows a more comprehensive object characterization. All synergies regarding geometric and spectral adaptation are exploited to improve both data quality and information content. For this purpose, a variety of modern algorithms and methods are used. A combination of physically driven methods (photogrammetry, ray tracing, radiative transfer modelling) and data driven methods (computer vision, deep learning, point cloud processing) allow for the most realistic measurement of surface reflectance free of geometrical, illumination and viewing angle influences.

Further details can be found in our scientific publications:

3D Hyperspektral point cloud  

Radiometric cross calibration

Geometric coalignment

Contact

Maximilian Brell
Account-Guest (Guest)
Dr. Maximilian Brell

Development of New Plastic Materials for a Clean Environment and Detection of Entry Paths

Mapping the micro- and macro-plastic pollution of the environment ENSURE

Simulation of reflectance

Monitoring of arable crops is one of the core applications of the upcoming EnMAP mission. The simulation of multitemporal reflectance patterns posed by varying viewing geometry and plant phenology is of very high interest. For this reason HySimCaR was developed, a spectral, spatial and temporal simulation system for top-of-canopy reflectance including 4D plant models and ray tracing techniques. This data serves as input for the EnMAP scene simulator.

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