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