Coupled carbon-water exchange of the Amazon rain forest, II. Comparison of predicted and observed seasonal exchange of energy, CO2, isoprene and ozone at a remote site in Rondônia E. Simon, F. X. Meixner, U. Rummel, L. Ganzeveld, C. Ammann, and J. Kesselmeier Biogeochemistry Dept., Max Planck Institute for Chemistry, Mainz, Germany Meteorologisches Observatorium Lindenberg, Deutscher Wetterdien...

A physlco-chenmal subcloud rain model IS used to simulate the effect of gaseous HNO, and NO, on pH and SOiproduction in a IOmmh-‘, 1000-m fall distance rain event. The ambient gases constdered m the chemistry were SO,, NO, NO,, HNO,. 0,. and CO,. Ramdrops mtttally at a pH of 5.5 absorbed these gases, and as they fell through a polluted zone, produced SOiand NO; by the oxidatron of dissolved SO,...

[1] The ocean plays a major role in the global carbon cycle through the atmosphere‐ocean partitioning of atmospheric carbon dioxide. Rain alters the physics and carbon chemistry at the ocean surface to increase the amount of CO2 taken up by the ocean. This paper presents the results of a preliminary study wherein rain measurements in the western equatorial Pacific are used to determine the enha...

Collecting rain for trace elemental analyses can be a difficult task. In Australia, most sampling of atmospheric deposition so far has been concerned with gauging the major element chemistry of atmospheric deposition to the Australian continent. Very little work has been conducted on the trace element chemistry of atmospheric deposition in the Australian landscape and, therefore, collector desi...

Until recently, the scientific consensus has been that acid-rain-watershed interactions are those of processes which predominate in deep, well-drained mineral soil and the waters derived from them. In such watersheds alkaline minerals dissolve to naturally impart alkalinity to surface waters and normally acid components in rain would be neutralized. Furthermore, the sulfate of the sulfuric acid...

Bartman et al., (2022). PySDM v1: particle-based cloud modeling package for warm-rain microphysics and aqueous chemistry. Journal of Open Source Software, 7(72), 3219, https://doi.org/10.21105/joss.03219

State-of-the-art chemical bonding analyses show that water clusters have a bifunctional catalytic role in the formation of H2SO4 in acid rain. The embedded H2O monomers mitigate the change in the chemical bonding scenario of the rate-limiting step, reducing thereby the corresponding activation energy in accordance with Hammond's postulate. We expect that the insights given herein will prove use...

Measurements of reactive chlorocarbons over the Surinam tropical rain forest: indications for strong biogenic emissions H. A. Scheeren, J. Lelieveld, J. Williams, H. Fischer, and C. Warneke Institute for Marine and Atmospheric research Utrecht, The Netherlands Max-Planck-Institute for Chemistry, Mainz, Germany NOAA Aeronomy Laboratory, Boulder, Colorado, USA Received: 11 September 2003 – Accept...