S
Samuel Hammer
Researcher at Heidelberg University
Publications - 49
Citations - 2202
Samuel Hammer is an academic researcher from Heidelberg University. The author has contributed to research in topics: Greenhouse gas & Analyser. The author has an hindex of 22, co-authored 47 publications receiving 1826 citations. Previous affiliations of Samuel Hammer include Icos.
Papers
More filters
Journal ArticleDOI
Assessment of a multi-species in situ FTIR for precise atmospheric greenhouse gas observations
Samuel Hammer,David W. T. Griffith,G. Konrad,Sanam Noreen Vardag,Christopher Caldow,Ingeborg Levin +5 more
TL;DR: In this article, the performance of a multi-species, in situ Fourier transform infrared (FTIR) analyser with respect to high-accuracy needs for greenhouse gas monitoring networks is thoroughly evaluated.
Journal ArticleDOI
Verification of greenhouse gas emission reductions: the prospect of atmospheric monitoring in polluted areas
TL;DR: It is shown that dedicated long-term atmospheric measurements of greenhouse gases, such as carbon dioxide (CO2) and methane (CH4), continuously conducted at polluted sites can provide the necessary tool for independent verification of greenhouse gas emissions reporting.
DatasetDOI
Monthly mean atmospheric D14CO2 at Jungfraujoch and Schauinsland from 1986 to 2016
Samuel Hammer,Ingeborg Levin +1 more
TL;DR: In this article, 14CO2 observations at Jungfraujoch high altitude research station in the Swiss Alps (3450m a.s.l.) and at Schauinsland observatory (1205 m a. s.l.).
Journal ArticleDOI
Regional inversion of CO2 ecosystem fluxes from atmospheric measurements: reliability of the uncertainty estimates
Grégoire Broquet,Frédéric Chevallier,F-M Breon,N. Kadygrov,M. Alemanno,F. Apadula,Samuel Hammer,László Haszpra,F. Meinhardt,J. A. Morguí,J. Necki,Salvatore Piacentino,Michel Ramonet,Martina Schmidt,Rona Thompson,Rona Thompson,Alex Vermeulen,C. Yver,Philippe Ciais +18 more
TL;DR: In this article, the reliability of these theoretical estimates through a comparison against the misfits between the inverted fluxes and independent measurements of the CO 2 Net Ecosystem Exchange (NEE) made by the eddy covariance technique at local (few hectares) scale is studied.
Journal ArticleDOI
Seasonal variation of the molecular hydrogen uptake by soils inferred from continuous atmospheric observations in Heidelberg, southwest Germany.
Samuel Hammer,Ingeborg Levin +1 more
TL;DR: In this article, an alternative way to estimate atmosphere-to-soil flux densities, respectively deposition velocities of H 2, based on atmospheric H 2 and 222 Rn observations in the boundary layer is presented.