Zobrazeno 1 - 10
of 514
pro vyhledávání: '"W, Babel"'
Vertical concentrations gradients and transport of airborne microplastics in wind tunnel experiments
Publikováno v:
Aerosol Research, Vol 2, Pp 235-243 (2024)
Microplastics are an ubiquitous anthropogenic material in the environment, including the atmosphere. Little work has focused on the atmospheric transport mechanisms of microplastic nor its dispersion, despite it being a potential pollutant. We study
Externí odkaz:
https://doaj.org/article/fb7711d08e7149b9908bef17c278294c
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 15835-15851 (2023)
Atmospheric transport can disperse microplastic particulate matter to virtually every environment on the planet. Only a few studies have examined the fundamental transport mechanisms of microplastics and contrasted them with the existing body of know
Externí odkaz:
https://doaj.org/article/51ce6848c2024ecb9838b8cc769e4074
Publikováno v:
Earth System Science Data, Vol 14, Pp 885-906 (2022)
The weak-wind stable boundary layer (wwSBL) is poorly described by theory and breaks basic assumptions necessary for observations of turbulence. Understanding the wwSBL requires distributed observations capable of separating between sub-mesoscales an
Externí odkaz:
https://doaj.org/article/aef69e2768c24836b41360d4b3228185
Publikováno v:
Atmospheric Measurement Techniques, Vol 12, Pp 971-976 (2019)
Recently reported trends of carbon dioxide uptake pose the question of whether trends may be the result of the limited digitalization of gas analysers and sonic anemometers used in the 1990s. Modifying a 12 bit digitalization and the instrument err
Externí odkaz:
https://doaj.org/article/86266f477cf14e3caab6a75edc464792
Publikováno v:
Biogeosciences, Vol 15, Pp 2945-2960 (2018)
The ACASA (Advanced Canopy–Atmosphere–Soil Algorithm) model, with a higher-order closure for tall vegetation, has already been successfully tested and validated for homogeneous spruce forests. The aim of this paper is to test the model using
Externí odkaz:
https://doaj.org/article/c29ffdbed27a498aa227c8770272bd0a
Publikováno v:
Aerosol Science and Technology. 56:530-544
Aerial suspension is an important process to link potential sources of particles to atmospheric transport. For contaminants like radioactive particles, pesticides or spores aerial suspension is especially relevant. We present a method that can visual
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::327821cfebdb3a29c40172d74b59d55f
https://doi.org/10.1080/02786826.2022.2048789
https://doi.org/10.1080/02786826.2022.2048789
Publikováno v:
Hydrology and Earth System Sciences, Vol 19, Iss 9, Pp 4023-4040 (2015)
The Tibetan Plateau plays a significant role in atmospheric circulation and the Asian monsoon system. Turbulent surface fluxes and the evolution of boundary-layer clouds to deep and moist convection provide a feedback system that modifies the plateau
Externí odkaz:
https://doaj.org/article/4b7a0c1384fb4b99b75def71dc4183dc
Autor:
W. Babel, T. Biermann, H. Coners, E. Falge, E. Seeber, J. Ingrisch, P.-M. Schleuß, T. Gerken, J. Leonbacher, T. Leipold, S. Willinghöfer, K. Schützenmeister, O. Shibistova, L. Becker, S. Hafner, S. Spielvogel, X. Li, X. Xu, Y. Sun, L. Zhang, Y. Yang, Y. Ma, K. Wesche, H.-F. Graf, C. Leuschner, G. Guggenberger, Y. Kuzyakov, G. Miehe, T. Foken
Publikováno v:
Biogeosciences, Vol 11, Iss 23, Pp 6633-6656 (2014)
The Tibetan Plateau has a significant role with regard to atmospheric circulation and the monsoon in particular. Changes between a closed plant cover and open bare soil are one of the striking effects of land use degradation observed with unsustain
Externí odkaz:
https://doaj.org/article/acfad723f3504fc4a8de243ca07ebeee
Publikováno v:
Atmospheric Measurement Techniques, Vol 6, Iss 2, Pp 221-229 (2013)
For non-omnidirectional sonic anemometers like the Kaijo-Denki DAT 600 TR61A probe, it is shown that separate planar-fit rotations must be used for the undisturbed (open part of the sonic anemometer) and the disturbed sector. This increases the frict
Externí odkaz:
https://doaj.org/article/d553267b4526499499215b011cc6e12e
Autor:
T. Gerken, W. Babel, A. Hoffmann, T. Biermann, M. Herzog, A. D. Friend, M. Li, Y. Ma, T. Foken, H.-F. Graf
Publikováno v:
Hydrology and Earth System Sciences, Vol 16, Iss 4, Pp 1095-1110 (2012)
This paper introduces a surface model with two soil-layers for use in a high-resolution circulation model that has been modified with an extrapolated surface temperature, to be used for the calculation of turbulent fluxes. A quadratic temperature pro
Externí odkaz:
https://doaj.org/article/063dbf87d512473e926dd7b0fd0bb94c