Full text of the journal article referenced in the Deutsche Welle article is paywalled, but there is what looks like a research/conference poster at https://www

Full text of the journal article referenced in the Deutsche Welle article is paywalled, but there is what looks like a research/conference poster at https://www.ufz.de/export/data/2/149396_EGU_2017_Schmidt.pdf https://www.ufz.de/export/data/2/149396_EGU_2017_Schmidt.pdf that contains quite a lot of detail.