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Article
A note on Lettau’s climatonomy equation and its use to classify droughts
It is argued in this note that Lettau’s climatonomy equation that relates the flux balance equations of energy and water at the earth’s surface to each other in a straight-forward manner can be used for classi...
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Article
On the vertically averaged balance equation of atmospheric trace constituents
The vertically averaged balance equation of atmospheric trace constituents that customarily serves as a basis for one- and two-layer (box) models of the atmospheric boundary layer and the whole troposphere is ...
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Article
Long-term investigations on the water budget quantities predicted by the hydro-thermodynamic soil vegetation scheme (HTSVS) – Part II: Evaluation, sensitivity, and uncertainty
¶Various water budget elements (water supply to the atmosphere, ground water recharge, change in storage) are predicted by HTSVS for a period of 2050 days. The predicted water budget elements are evaluated by ...
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Article
Long-term investigations on the water budget quantities predicted by the hydro-thermodynamic soil vegetation scheme (HTSVS) – Part I: Description of the model and impact of long-wave radiation, roots, snow, and soil frost
¶An earlier version of HTSVS was further developed to numerically investigate the long-term evolution of water budget elements (water supply to the atmosphere, ground water recharge, change in storage) in clim...
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Article
Sublayer-Stanton numbers of heat and matter for aerodynamically smooth surfaces: basic considerations and evaluation
Sublayer-Stanton numbers, Bi, of heat and matter for the interfacial sublayer over aerodynamically smooth surfaces determined for forced convective conditions by elementary and numerical integration are reviewed...
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Chapter
Biosphere — Atmosphere Exchange of Ammonia
Substantial progress has been made in the last eight years in the understanding and quantification of ammonia exchange between the atmosphere and biosphere. Much of the work has been linked to the joint EC/EUR...
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Chapter
Atmosphere — Surface Exchange of Nitrogen Oxides and Ozone
During the development of the EUROTRAC research programme on atmosphere-surface exchange it was recognised that while for SO2 much valuable progress has been made, there were few published studies of NO2 depositi...
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Chapter
Ozone Formation, Destruction and Exposure in Europe and the United States
One of the earliest observations that air pollution could damage vegetation was made in Los Angeles during 1944 (Finlayson-Pitts and Pitts 1986). It was established by Middleton et al. (1950) that plant damage...
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Article
A SVAT scheme for NO, NO2, and O3 — Model description and test results
A soil/vegetation/atmosphere transfer (SVAT) scheme for determining the dry deposition and/or emission fluxes of NO, NO2, and O3 in the atmospheric surface layer over horizontally uniform terrain covered with fib...
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Chapter
Profiles of Ozone and Surface Layer Parameters Over a Mature Spruce Stand
Measurements of ozone profiles above a mature spruce stand lead to the conclusion that either an ozone production takes place close to or within the canopy or a destruction well above it, because at certain ti...
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Chapter and Conference Paper
Trockene Deposition reaktionsträger Substanzen, beschrieben mit einem diagnostischen Simulationsmodell der bodennahen Luftschicht
Daß Fremdstoffe durch Deposition am Erdboden und an der Vegetation aus verunreinigter Luft entfernt werden können, hat meteorologische Ursachen, die in erster Linie im spezifischen Verhalten der an die Erdober...
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Chapter
A Discussion of Approximate Relations for Transfer and Deposition of Trace Constituents in the ABL
Calculation methods of the vertical diffusi-vity coefficients, the transport and the deposition velocity of a trace constituent in the ABL are presented. For deter-ming actual values and profiles these methods...
