The Imaging Spectroscopy Mission Enmap–Its Status and Expected Products

Storch, Tobias; Honold, Hans‐Peter; Guanter, Luis; Schwind, Peter; Mücke, Martin; Segl, Karl; Fischer, Sebastian

doi:10.1109/whispers.2018.8747005

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…The hyperspectral image products at different processing levels will be freely available to the scientific user community for measuring and analyzing bio-, geochemical, and physical parameters characterizing the Earth's surface. This encompasses agriculture, forestry, soil and geological environments, as well as coastal zones and inland waters [Storch et al, 2018].…”

Section: The Enmap Hyperspectral Imager Satellite Missionmentioning

confidence: 99%

Smile Correction in the Enmap Ground Segment Processor: A Qualitative Analysis

Langheinrich¹,

Richter²,

Reyes³

et al. 2018

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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<p><strong>Abstract.</strong> The Environmental Mapping and Analysis Program (EnMAP) is an upcoming German hyperspectral satellite mission aiming to observe and characterize the Earth’s environment on a global scale. In course of a the development of the EnMAP ground segment processing chain, measures were taken to deal with probable spectral and spatial distortion effects of the sensor, that can only be addressed by post-processing once the satellite platform is launched into orbit. One of these effects is a pixel- and band-wise spectral distortion, the so called sensor smile effect. This paper describes the methods and performance of the smile correction process as implemented for the EnMAP ground segment processing chain, explaining design choices and difficulties currently encountered with the proposed approach and evaluating the results of the smile correction on basis of simulated EnMAP hyperspectral data.</p>

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Section: The Enmap Hyperspectral Imager Satellite Missionmentioning

confidence: 99%

Smile Correction in the Enmap Ground Segment Processor: A Qualitative Analysis

Langheinrich¹,

Richter²,

Reyes³

et al. 2018

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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“…Various pushbroom-type IS where built and launched in recent years, such as the DLR Earth Sensing Imaging Spectrometer (DESIS) onboard the International Space Station (ISS) [5]. In 2019 the Italian Space Agency (Agenzia Spaziale Italiana, ASI) launched the PRISMA mission (PRecursore IperSpettrale della Missione Operativa) [6], followed by the Environmental MAPping (EnMAP) [7] mission from Deutsches Zentrum für Luft-und Raumfahrt (DLR) in March 2022. In parallel the Japanese Hyperspectral Imager Suite (HISUI) [8] and JPL's EMIT [9] were embarked onboard the International Space Station (ISS) in December 2019 and July 2022, respectively.…”

Section: Introductionmentioning

confidence: 99%

The copernicus hyperspectral imaging mission for the environment (CHIME): an overview of its mission, system and planning status

Nieke,

Despoisse,

Gabriele

et al. 2023

Sensors, Systems, and Next-Generation Satellites XXVII

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Imaging spectroscopy enables the observation and monitoring of surface properties thanks to the diagnostic capability of contiguous, spectral measurements from the Visible to the Shortwave Infra-Red portion of the electromagnetic spectrum. These observations of the Earth’s surface support the generation of a wide variety of new products and services, spanning across different domains relevant to various European Union (EU) policies that are currently not being met or can be substantially improved, not only for the public, but also for the private downstream sector. The Copernicus Hyperspectral Imaging Mission for the Environment (CHIME) aims to provide routine hyperspectral observations over the land and coastal zones through the Copernicus Programme in support of EU- and related policies for the management of natural resources, assets, and benefits. This unique Visible-to-shortwave Infra-Red spectroscopy based observational capability will in particular support new and enhanced services for food security, agriculture and raw materials. For the development of the Space Segment Contract (Phase B2/C/D/E1) Thales Alenia Space (France) as Satellite Prime and OHB (Germany) as Instrument Prime were selected. The contract was signed in November 2020 and the corresponding Kick-Off released the start of Phase B2. The System Requirement Review (SRR) was conducted in July 2021 and the Preliminary Design Review (PDR) is being conducted in 2022. Currently there are two satellites foreseen and each of the satellites will embark a HyperSpectral Instrument (HSI), a pushbroom-type grating Imaging Spectrometer with high Signal-to-Noise Ratio (SNR), high radiometric accuracy and data uniformity. HSI consists of a single telescope for three single-channel spectrometers covering each one-third of the total swath of approximately 130 km. The spectral range of each spectrometer is covering the entire spectral range from 400 to 2500 nm. CHIME data will be processed and disseminated through the Copernicus core Ground Segment allowing the generation of CHIME core products: L2A (bottom-of-atmosphere surface reflectance in cartographic geometry), L1C (top-of-atmosphere reflectance in cartographic geometry) and L1B (top-of-atmosphere radiance in sensor geometry). Additional higher level prototype products related to key vegetation, soil and raw material properties are also being developed. In this contribution, besides the mission requirements and planning, the main outcomes of the activities in Phase A/B1 and B2, as well as the planned activities for Phase C/D/E will be presented, covering the scientific support studies, the technical developments, and the user community preparatory activities.

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“…The high-resolution imaging spectroscopy remote sensing mission "Environmental Mapping and Analysis Program" (EnMAP) [1] was successfully launched on April 1st, 2022 and entered operational phase on November 2nd, 2022.…”

Section: Introductionmentioning

confidence: 99%

BOA Reflectance Based Dead and Defective Pixel Interpolation in the ENMAP Ground Segment Processing Chain

Langheinrich,

Marshall,

De Los Reyes

2023

IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium

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The EnMAP mission, launched in April 2022, is a remote sensing in the optical domain (VNIR / SWIR) with a high spatial (30 m GSD) and spectral (FWHM ~ 6-12 nm) resolution. In general, remote sensing data can suffer from pixel defects caused by various factors like aging, component degradation, vibrations, and transmission failures. These defects result in missing or low-quality data, non-uniformity effects, and out-of-range radiance values. To address this, interpolation techniques are applied during data processing, both at the TOA radiances and intermediate BOA reflectance spectra levels. The interpolation implemented in EnMAP aims to improve the accuracy of derived spectral products by not only correcting defective pixels, but additionally, reconstructing datasets with missing bands, taking advantage of the high spectral/spatial resolution of this data. The algorithm's performance is evaluated by comparing the results with reference values and with more traditional interpolation methods, like for example the one used by the DESIS sensor. The study also explores the algorithm's capabilities in scenarios involving partial loss of radiance data.

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The Imaging Spectroscopy Mission Enmap–Its Status and Expected Products

Cited by 4 publications

References 10 publications

Smile Correction in the Enmap Ground Segment Processor: A Qualitative Analysis

Smile Correction in the Enmap Ground Segment Processor: A Qualitative Analysis

The copernicus hyperspectral imaging mission for the environment (CHIME): an overview of its mission, system and planning status

BOA Reflectance Based Dead and Defective Pixel Interpolation in the ENMAP Ground Segment Processing Chain

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