Presented at the 3rd ICOS Science Conference in Prague, Czech Republic, 11-13 Sep 2018.

1. Combining airborne and ground based remote sensing as well as in‐situ
techniques to determine CH4 emissions of a European CH4 emission hot spot
Upper Silesian Basin – a European CH4‐Emission Hot Spot
Objectives & Experimental Approach
H. Bovensmann2, A. Fix1, A. Amediek1, J. Borchardt2, J.P. Burrows2, A. Butz5, G. Ehret1, A. Fiehn1, C. Gerbig3, M. Heimann3, K. Gerilowski2, P. Jöckel1, S. Krautwurst2, J. Marshall3, J.
Nęcki4, K. Pfeilsticker5, M. Rapp1, A. Roiger1, T. Ruhtz7, J. Swolkień4, M. Zöger6, and the CoMet Team
1DLR Institut für Physik der Atmosphäre, Oberpfaffenhofen (D) , 2Institut für Umweltphysik, Universität Bremen (D) , 3Max-Planck-Institut für Biogeochemie, Jena , 4Akademia Górniczo-Hutnicza (AGH) im. Stanisława Staszica w Krakowie (PL), 5Institut für
Umweltphysik, Universität Heidelberg (D), 6DLR Flugexperimente, Oberpfaffenhofen (D), 7Freie Universität Berlin (D)
Acknowledgements: The COMET campaign activities are supported by the DFG project HALO
COMET and the BMBF project AIRSPACE. COMET was executed in a cooperation between DLR
IPA, MPI BGC, AGH and University of Bremen.
Key Objectives:
• Provide airborne and ground based atmospheric CH4 and CO2
data for regional inverse modeling of CH4 and CO2
• Identifying local sources and quantifying regional emissions
• Improving regional‐scale estimates of GHG fluxes
• Using an innovative airborne payload (active + passive remote
sensing + in‐situ)
• Validating satellite measurements (GOSAT, Sentinel‐5P, OCO2),
test for S5/MERLIN
Summary & Outlook
• CoMet 1.0 Mission: 12 May – 17 June, 2018
• Very successful flights & a wealth of data!
• First active – passive GHG remote sensing data set
• Two good days for S5P CH4 validation
• Combination of in‐situ and remote sensing can be used to
quantify the spatial variation of XCH4 on S5P sub‐pixel scale.
• Data will be used to estimate CH4 emissions from point source
(coal mine shafts) to basin scale.
• Data and campaign experience can be used to develop strategies
for S5P XCH4 validation in regions with expected large XCH4
spatial variability.
• Early results from COMET 2018 will be discussed at COMET
workshop in January 2019
andreas.fix@dlr.de
heinrich.bovensmann@uni‐bremen.de
CH4 Upper Silesian Basin – Quicklook data from COMET 2018
HALO with
CHARM‐F (Lidar)
Power Plants
Coal Mines
Ground based instrumentation:
Mobile FTIR & In‐situ instruments
on vans & drones, incl. Isotopes and wind
Cessna C207
MAMAP (passive)
Cessna Grand Caravan
in‐situ (QCL, Flasks)
GOSAT & Setninel‐5P
Instrument acronym Description Aircraft
CHARM‐F DLR Lidar (IPDA) XCO2 and XCH4
HALO_JIG MPI Cavity Ringdown Spectrometer
HALO_JAS MPI Flask sampler
miniDOASIUP‐UH
Differential Optical Absorption
Spectroscopy
BAHAMAS DLR HALO basic data acquisition system
DropsondesDLR Meteorological sondes
FOKALMenlo/DLR Miniaturized Frequency comb
MAMAP IUP‐UB
SWIR spectrometer (XCO2 and
XCH4)
CRDS IUP‐UB
Cavity Ringdown Spectrometer
(CO2, CH4)
QCLS DLR
Quantum Cascade Laser
Spectrometer
DLR‐Cessna
DLR‐Cessna
DLR‐Cessna
DLR‐Cessna
CRDS DLR Cavity Ringdown Spectrometer
SamplerDLR/MPI Flask sampler
METPOD DLR
Cessna basic data acquisition
system
FU Berlin Cessna 207
HALO
DLR Cessna 208
Due to intense coal mining activities USB is an area with large CH4 emission (~ 500 kT CH4 / year on 50 km x 50 km)
Power plant CO2 – active & passive remote sensing
MAMAP
Airborne in‐situ CH4 6. June 2018, PM
CHARM‐F CH4 quicklook data 07. June 2018
Background: MECO(n) Forecast for 07‐June‐2018 10:00
Wind Lidar (DLR)
01. June 2018
Mobile FTIR (Luther, Kleinschek, Butz)
Van‐based in‐situ
meaurements (MEMO2)
MAMAP