Influence of turbulence on the drop growth in warm clouds, Part II: Sensitivity studies with a spectral bin microphysics and a Lagrangian cloud model

Autor: Theres Riechelmann, Ulrike Wacker, Klaus D. Beheng, Dieter Etling, Siegfried Raasch

Publikováno v: Meteorologische Zeitschrift, Vol 24, Iss 3, Pp 293-311 (2015)

Raindrops in warm clouds grow faster than predicted by classical cloud models. One of the possible reasons for this discrepancy is the influence of cloud turbulence on the coagulation process. In Part I (Siewert et al., 2014) of this paper series, a

Externí odkaz: https://doaj.org/article/b8fa0048787e4b71b472da2bb9291650

Influence of turbulence on the drop growth in warm clouds, Part I: comparison of numerically and experimentally determined collision kernels

Autor: Christoph Siewert, Róbert Bordás, Ulrike Wacker, Klaus D. Beheng, Rudie P.J. Kunnen, Matthias Meinke, Wolfgang Schröder, Dominique Thévenin

Publikováno v: Meteorologische Zeitschrift, Vol 23, Iss 4, Pp 397-410 (2014)

This study deals with the comparison of numerically and experimentally determined collision kernels of water drops in air turbulence. The numerical and experimental setups are matched as closely as possible. However, due to the individual numerical a

Externí odkaz: https://doaj.org/article/42c7198c59d7490c8e2f8c463ca8cf94

A Comparative Study of B-, Γ- and Log-Normal Distributions in a Three-Moment Parameterization for Drop Sedimentation

Autor: Corinna Ziemer, Ulrike Wacker

Publikováno v: Atmosphere, Vol 5, Iss 3, Pp 484-517 (2014)

This paper examines different distribution functions used in a three-moment parameterization scheme with regard to their influence on the implementation and the results of the parameterization scheme. In parameterizations with moment methods, the pro

Externí odkaz: https://doaj.org/article/8b56f85f3cc54b8fa2bb2bdbdd1816c2

Dietary versatility of Early Pleistocene hominins

Autor: Ottmar Kullmer, Friedemann Schrenk, Oliver Sandrock, Ulrike Wacker, Andreas Mulch, Jens Fiebig, Tina Lüdecke

Publikováno v: Proceedings of the National Academy of Sciences of the United States of America, 115(52):13330-13335
Proceedings of the National Academy of Sciences of the United States of America

Significance Clumped and stable isotope data of paleosol carbonate and fossil tooth enamel inform about paleoenvironments of Early Pleistocene hominins. Data on woodland- vs. grassland-dominated ecosystems, soil temperatures, aridity, and the diet of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9069aa8d7221d0c21c7df3ced1f44ab
https://doi.org/10.1073/pnas.1809439115

Clumped isotope thermometry of carbonate-bearing apatite: Revised sample pre-treatment, acid digestion, and temperature calibration

Autor: Thomas Tütken, Michael E. Böttcher, Anika C. Conrad, Niklas Löffler, Ulrike Wacker, Tanja Rutz, Jens Fiebig

Publikováno v: Chemical Geology. 443:97-110

It has recently been shown that the clumped isotopic composition (Δ47) of carbonate-bearing hydroxyapatite (CHAP) from teeth and bones reveals important information about the body temperature of vertebrates (Eagle et al., 2010, 2011). In this study

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6c32f714ee894a47d1f75ccbb638fa1a
https://doi.org/10.1016/j.chemgeo.2016.09.009