Publications

Quantitative imaging of carbon dioxide plumes using a ground-based shortwave infrared spectral camera

Published in Atmospheric Measurement Techniques, 2024

First-time ground-based imaging of CO2 plumes and a quantitative validation of the emission estimates using Gaussian plume inversion.

Recommended citation: Knapp, M. et al., (2024): "Quantitative imaging of carbon dioxide plumes using a ground-based shortwave infrared spectral camera", Atmos. Meas. Tech.. https://doi.org/10.5194/amt-17-2257-2024

Spectrometric imaging of sub-hourly methane emission dynamics from coal mine ventilation

Published in Environmental Research Letters, 2023

We conducted a field campaign in the Upper Silesian Coal Basin, Poland, where we measured the methane emission dynamics on the time scale of minutes by spectrometric imaging.

Recommended citation: Knapp et al., (2023): "Spectrometric imaging of sub-hourly methane emission dynamics from coal mine ventilation", Environ. Res. Let.. https://doi.org/10.1088/1748-9326/acc346

Versatile and Targeted Validation of Space-Borne XCO2, XCH4 and XCO Observations by Mobile Ground-Based Direct-Sun Spectrometers

Published in Frontiers in Remote Sensing, 2022

This paper is a follow-up paper on the ship-borne FTIR spectrometer publication, which now is in cooperation with Japans National Institute of Environmental Science (NIES).

Recommended citation: Butz et al., (2022): "Versatile and Targeted Validation of Space-Borne XCO2, XCH4 and XCO Observations by Mobile Ground-Based Direct-Sun Spectrometers.", Frontiers in Remote Sensing. https://doi.org/10.3389/frsen.2021.775805

Shipborne measurements of XCO2, XCH4, and XCO above the Pacific Ocean and comparison to CAMS atmospheric analyses and S5P/TROPOMI

Published in Earth System Science Data, 2021

This paper describes ship-borne measurements with a FTIR spectrometer over the Pacific. We developed a weather-proof enclosure for an EM27/SUN FTIR and performed five weeks of observations.

Recommended citation: Knapp et al., (2021): "Shipborne measurements of XCO2, XCH4, and XCO above the Pacific Ocean and comparison to CAMS atmospheric analyses and S5P/TROPOMI.", Earth System Science Data. https://doi.org/10.5194/essd-13-199-2021

The novel HALO mini-DOAS instrument: inferring trace gas concentrations from airborne UV/visible limb spectroscopy under all skies using the scaling method

Published in Atmospheric Measurement Techniques, 2017

This paper describes a custom-built airborne DOAS spectrometer which was developed at the IUP Heidelberg.

Recommended citation: Hüneke, T. et al., (2017): "The novel HALO mini-DOAS instrument: inferring trace gas concentrations from airborne UV/visible limb spectroscopy under all skies using the scaling method", Atmos. Meas. Tech.. https://doi.org/10.5194/amt-10-4209-2017