EnMAP – The German Hyperspectral
Mission
Sabine Chabrillat1, Karl Segl1, Saskia Foerster1, Luis Guanter2,1, Sebastian Fischer2, Godela Rossner2, Michael Bock2, Anke
Schickling2, Tobias Storch3 and further EnMAP Team members
1Helmholtz Center Potsdam German Research Center for Geosciences (GFZ)
2Universitat Politècnica de València 3Space Administration, German Aerospace Center (DLR)
4Earth Observation Center (EOC), German Aerospace Center (DLR)
Imaging Spectroscopy & Science Quantitative mapping for a wide range of research fields
Great potential for new (and unexpected!) applications
EnMAP satellite program
Operational mission with scientific focus
Provide high-quality calibrated
hyperspectral data
Measurements of key biophysical and
geochemical parameters
German project, core funding from BMWi
Currently in phase D
5-year operational phase
Open data policy for scientific users
Environmental Mapping and Analysis Program (DLR/GFZ)
Study environmental changes, investigate ecosystem responses to human activities,
and monitor the management of natural resources
EnMAP mission and sensor parameters
1000 km per Orbit
5000 km a Day
Guanter et al., Rem. Sens., 2015
Space segment
Telescope
SWIR
channel
VNIR
channel
Two spectrometers (VNIR and SWIR) with common optics (telescope and double slit
system). Curved prisms to minimize smile and keystone
Onboard calibration through sun diffuser as well as calibration spheres for linearity
- Status: Successful integration of SWIR cameras and characterization of the instrument optical unit
- To do: Finalization and testing of the platform
- Launch 1st half 2021
Ground segment
Development of the EnMAP processor: processing chain for
systematic und radiometric correction (Level 1B)
orthorectification (Level 1C)
atmospheric correction (Level 2A)
Instrument Cal & QC system
Long-term-archiving of products
Provision of a web-interface for the user for
Ordering of products and acquisitions
Delivery of products
Mission operations
Data reception
In its technical
verification phase
EnMAP users
Internal User
• Mission
• Charter
Category I
• Based on
science AO
• With proposal
Category II
• Based on
Space
Administration
• Without proposal
Background Mission
access
free and open acquisition
register
proposal
EnMAP scientific preparatory activities: Science and education program
More than 40 PhD students and Postdocs
funded as part of the EnMAP science
program since 2010
Application and algorithm development in
various fields incl. agriculture, forestry,
natural ecosystems, geology and soil,
urban areas, coastal and inland waters
Preparatory activities for the exploitation of EnMAP data
Focus on the development of
algorithms for the EnMAP-Box
Free and open-source plugin for
QGIS designed for a user-friendly
processing of EnMAP imagery
State of the art tools and
applications for preprocessing,
visualisation, and thematic
analyses
Bridges between GIS, digital image
processing and spectral analysis
High-level application
programming interface
Download from www.enmap.org/enmapbox.html
Van der Linden et al., Surv. Geophys., 2018
See session 2b EO-Education
session 4d Schulung EnMAP Box
EnMAP end-to-end scene simulations
Many (>100) simulated EnMAP data sets already existing
Contact Karl Segl at GFZ if you need simulations for your study site!
Algeria Alpine Himalayas Libreville Nowaja Semlja Sao Paulo Arcachon
Simulation of EnMAP-like L1b and L2 products for development and testing
of data pre-processing and scientific product retrieval algorithms
Segl et al., IEEE JSTARS, 2012
Bare Earth mapping: Geological and soil applications
Improved EnGeoMAP and EnSoMAP processors for mineral and soil
mapping implemented in the EnMAP-Box software (new release End 2019)
Simulation of EnMAP products for mineral and soil mapping
Chabrillat et al.: EnSoMAP processor for digital soil mapping with EnMAP
Mielke et al.: EnGeoMAP processor for geological mapping with EnMAP
Steinberg et al., Rem. Sens. 2016
Simulated EnMAP product for bare soil mapping
See session 3a Hypersp. Erdbeob.
Vegetation applications
N concentration at Donnersberg, RLP, Buddenbaum et al.
Forest: Nutrient deficiency mapping
Agriculture: EnMAP vegetation processor
Natural ecosystem: Quantitative vegetation cover mapping
Fractional Cover, CA, Okujeni et al.
Simulated EnMAP products
Canopy Liquid Water Content (EWT), estuary of the Ems river, Wocher et al.
Pacheco-Labrador et al.
See session 3a Hypersp. Erdbeob.
Water ressources, Ice and snow applications
Coastal & inland waters: EnMAP water products
Discrimination of phytoplankton groups, Hieronymi et al.
Cryospere physical properties: EnMAP snow products
NASA US Project. Principal Investigator: Thomas H. Painter, UCLA
Algorithms based on Painter et al 2003; 2013; 2016:
Snow grain size (microns), broadband albedo, radiative
forcing
See session 3a Hypersp. Erdbeob.
HYPERedu
Development of an online learning platform for imaging
spectroscopy as part of the EnMAP education initiative
Presentations, tutorials and educational films on principles,
methods and applications of imaging spectroscopy
Addressed at students and professionals at master level
First teaching courses published online September 2019
Massive Open Online Course (MOOC) with several modules
and certificates planned 2021
Hosted at EO College platform
eo-college.org
See session 2b EO-Education
Foerster et al.
Synergies with other missions for science applications
Multispectral: Change magnitude map based on 30y Landsat archive
(1984-2015)
Omongwa salt pan (Namibia) Hyperspectral: Salt crust mineralogical
map based on Hyperion (09/2014).
Milewski et al., Rem. Sens. 2017
Multispectral: operational, global coverage, high spatial resolution and revisit time
Hyperspectral (EnMAP): scientific, site-oriented („snapshots“), high potential for
material identification and quantification through spectral information
DESIS (DLR Germany & Teledyne USA)
400-1000 nm, 3.3 nm resolution
~30m GSD & ~30 km swath, lat. ~<60°
On ISS, Launch 2018, DESIS data available now (DLR)
Prisma (Italian Space Agency)
400-1010 nm & 920-2500 nm, 10 nm res. + PAN 400-700 nm
30m GSD & 30 km swath
Launch 2019, in commissioning phase
EMIT (NASA) Earth Surface Mineral Dust Source Investigation
New observations (~109) of arid land regions, 400-2500 nm, ~10 nm res.
60m GSD & 80 km swath
On ISS, Launch planned 2021
Others: GeoFen-5 (China), SHALOM (It/Isr), ..
International collaboration and synergies with other spaceborne imaging spectroscopy missions: ‘Target’ missions
Courtesy R. Green, 2019
Next-generation Landsat- and Sentinel- hyperspectral missions in preparation
HyspIRI/SBG: Surface Biology and Geology (NASA JPL / GSFC USA)
NASA priority after 2017 Earth Science Decadal Survey
Designated observable study plan
380-2500 nm, ~5-15 nm resolution + TIR bands
30-45m / 60-100m GSD, 8-16 days
CHIME : Copernicus Hyperspectral Imaging Mission for the Environment (ESA)
One of 6 High-Priority Copernicus Missions
In Phase A/B1
400-2500 nm, ≤10 nm resolution
20-30m GSD, 10-15 days
Time frame ~>2024-26
International collaboration and synergies with other spaceborne imaging spectroscopy missions: ‘Mapping’ missions
Courtesy M. Rast, 2019
Courtesy D. Schimel, 2019
EnMAP community activities
www.enmap.org/flights
12th EARSeL SIG Imaging Spectroscopy Workshop, 22-25 March 2021 in Potsdam
(jointly organized GFZ Potsdam / HU Berlin)
YoungEnMAP: international summer schools and workshops
Summary: Mission status
EnMAP Platform and instrument are being integrated at
OHB Oberpfaffenhofen
After solving a major design problem, the SWIR cameras
have been integrated and characterized in the instrument
Pre-launch characterisation campaign has started
Ground-segment in testing phase at DLR Oberpfaffenhofen
(Neustrelitz, Berlin)
Thank you for your attention!
(Courtesy OHB)
Development of a suite of tools and algorithms for
the scientific exploitation of EnMAP data
EnMAP with its open data policy will be an important
contributor to the provision of EO data with high
spectral resolution
Launch: 1st half 2021