Zobrazeno 1 - 10
of 65 276
pro vyhledávání: '"H. van As"'
Autor:
L. A. T. Machado, J. Kesselmeier, S. Botía, H. van Asperen, M. O. Andreae, A. C. de Araújo, P. Artaxo, A. Edtbauer, R. R. Ferreira, M. A. Franco, H. Harder, S. P. Jones, C. Q. Dias-Júnior, G. G. Haytzmann, C. A. Quesada, S. Komiya, J. Lavric, J. Lelieveld, I. Levin, A. Nölscher, E. Pfannerstill, M. L. Pöhlker, U. Pöschl, A. Ringsdorf, L. Rizzo, A. M. Yáñez-Serrano, S. Trumbore, W. I. D. Valenti, J. Vila-Guerau de Arellano, D. Walter, J. Williams, S. Wolff, C. Pöhlker
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 8893-8910 (2024)
This study investigates the rain-initiated mixing and variability in the mixing ratio of selected trace gases in the atmosphere over the central Amazon rain forest. It builds on comprehensive data from the Amazon Tall Tower Observatory (ATTO), spanni
Externí odkaz:
https://doaj.org/article/98b13c62a856418fb3604f9a83d7f35c
Autor:
H. van Asperen, T. Warneke, A. Carioca de Araújo, B. Forsberg, S. José Filgueiras Ferreira, T. Röckmann, C. van der Veen, S. Bulthuis, L. Ramos de Oliveira, T. de Lima Xavier, J. da Mata, M. de Oliveira Sá, P. Ricardo Teixeira, J. Andrews de França e Silva, S. Trumbore, J. Notholt
Publikováno v:
Biogeosciences, Vol 21, Pp 3183-3199 (2024)
Soil carbon monoxide (CO) fluxes represent a net balance between biological soil CO uptake and abiotic soil and (senescent) plant CO production. Studies largely from temperate and boreal forests indicate that soils serve as a net sink for CO, but unc
Externí odkaz:
https://doaj.org/article/7e80e27f7693496e9959661a0b715bb5
Publikováno v:
Biogeosciences, Vol 18, Pp 2609-2625 (2021)
The magnitude of termite methane (CH4) emissions is still an uncertain part of the global CH4 budget and current emission estimates are based on limited field studies. We present in situ CH4 emission measurements of termite mounds and termite mound s
Externí odkaz:
https://doaj.org/article/45f1380f6402491faa6c300b026327aa
Autor:
S. Botía, C. Gerbig, J. Marshall, J. V. Lavric, D. Walter, C. Pöhlker, B. Holanda, G. Fisch, A. C. de Araújo, M. O. Sá, P. R. Teixeira, A. F. Resende, C. Q. Dias-Junior, H. van Asperen, P. S. Oliveira, M. Stefanello, O. C. Acevedo
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 6583-6606 (2020)
Methane (CH4) atmospheric mixing ratio measurements are analyzed for the period between June 2013 and November 2018 at the Amazon Tall Tower Observatory (ATTO). We describe the seasonal and diurnal patterns of nighttime events in which CH4 mixing rat
Externí odkaz:
https://doaj.org/article/b751e438aa8d48d0a0da6d9dd617671b
Publikováno v:
Mires and Peat, Vol 24, Iss 04, Pp 1-22 (2019)
The rewetting of drained peatlands is currently a common practice for re-establishing near-natural hydrological conditions and for reducing peatland greenhouse gas (GHG) emissions, especially of carbon dioxide (CO2) and nitrous oxide (N2O), which are
Externí odkaz:
https://doaj.org/article/94301f55bd384d4b8945df48706ce3e0
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 7913-7931 (2018)
Carbon monoxide (CO) plays an important role in controlling the oxidizing capacity of the atmosphere by reacting with OH radicals that affect atmospheric methane (CH4) dynamics. We develop a process-based biogeochemistry model to quantify the CO e
Externí odkaz:
https://doaj.org/article/791ef9ebbe824d69889b6ab56e52518a
Knowledge graphs enable data scientists to learn end-to-end on heterogeneous knowledge. However, most end-to-end models solely learn from the relational information encoded in graphs' structure: raw values, encoded as literal nodes, are either omitte
Externí odkaz:
http://arxiv.org/abs/2309.01169
We report on the melting dynamics of frozen olive oil in quiescent water for Rayleigh numbers up to $10^9$. The density difference results in an upward buoyancy-driven flow of liquid oil forming a thin film around the frozen oil. We experimentally in
Externí odkaz:
http://arxiv.org/abs/2309.00414
Publikováno v:
Biogeosciences, Vol 12, Iss 13, Pp 4161-4174 (2015)
Recent studies have suggested the potential importance of abiotic degradation in arid ecosystems. In this study, the role of photo- and thermal degradation in ecosystem CO2 and CO exchange is assessed. A field experiment was performed in Italy using
Externí odkaz:
https://doaj.org/article/33228048503943869c94181beaf0a842
Autor:
R. Roos, H. Van Aswegen
Publikováno v:
South African Journal of Physiotherapy, Vol 67, Iss 1, Pp 4-8 (2011)
Coronary artery disease (CAD) is a worldwide health problem with an increased prevalence in sub-Saharan Africa. Physiotherapists inter-nationally are involved in the care of these patients from the acute stage following a cardiac event until phase II
Externí odkaz:
https://doaj.org/article/04caf84c87804e87955f911d5b1a9b14