A large number of published and unpublished measurements of cloud condensation nuclei (CCN) concentrations and aerosol optical thickness (AOT) measurements have been analyzed. AOT measurements were...
S. R. Freitas, K. M. Longo, R. Chatfield, P. Silva Dias, P. Artaxo, ...
We introduce the Coupled Aerosol and Tracer Transport model to the Brazilian developments on the Regional Atmospheric Modeling System (CATT-BRAMS). CATT-BRAMS is an on-line transport model fully...
W. Elbert, B. Weber, B. Büdel, M. O. Andreae, U. Pöschl
Microbiotic crusts consisting of bacteria, fungi, algae, lichens, and bryophytes colonize most terrestrial surfaces, and they are able to fix carbon and nitrogen from the atmosphere. Here we show...
B. W. Sinha, P. Hoppe, J. Huth, S. Foley, M. O. Andreae
Understanding the importance of the different oxidation pathways of sulfur dioxide (SO<sub>2</sub>) to sulfate is crucial for an interpretation of the climate effects of sulfate aerosols....
S. S. Gunthe, S. M. King, D. Rose, Q. Chen, P. Roldin, D. K. Farmer, ...
Atmospheric aerosol particles serving as cloud condensation nuclei (CCN) are key elements of the hydrological cycle and climate. We have measured and characterized CCN at water vapor supersaturations...
P. Reutter, J. Trentmann, H. Su, M. Simmel, D. Rose, H. Wernli, ...
We have investigated the formation of cloud droplets under (pyro-)convective conditions using a cloud parcel model with detailed spectral microphysics and with the κ-Köhler model approach for...
S. Janhäll, M. O. Andreae, U. Pöschl
Aerosol emissions from vegetation fires have a large impact on air quality and climate. In this study, we use published experimental data and different fitting procedures to derive dynamic particle...
B. Wilske, J. Burgheimer, K. Maseyk, A. Karnieli, E. Zaady, M. O. Andreae, ...
Biological soil crusts (BSC) constitute a spatially prominent part of the photosynthesizing vegetation in many dryland ecosystems. This study assesses the annual net carbon deposition related to BSC...
P. Reutter, H. Su, J. Trentmann, M. Simmel, D. Rose, S. S. Gunthe, ...
We have investigated the formation of cloud droplets under pyro-convective conditions using a cloud parcel model with detailed spectral microphysics and with the κ-Köhler model approach for...
S. S. Gunthe, S. M. King, D. Rose, Q. Chen, P. Roldin, D. K. Farmer, ...
Atmospheric aerosol particles serving as cloud condensation nuclei (CCN) are key elements of the hydrological cycle and climate. We have measured and characterized CCN at water vapor supersaturations...
S. Kundu, K. Kawamura, T. W. Andreae, A. Hoffer, M. O. Andreae
Aerosols in the size class <2.5 μm (6 daytime and 9 nighttime samples) were collected at a pasture site in Rondônia, Brazil, during the intensive biomass burning period of 16–26 September...
D. Rose, S. S. Gunthe, E. Mikhailov, G. P. Frank, U. Dusek, M. O. Andreae, ...
Experimental and theoretical uncertainties in the measurement of cloud condensation nuclei (CCN) with a continuous-flow thermal-gradient CCN counter from Droplet Measurement Technologies (DMT-CCNC)...
E. Freud, D. Rosenfeld, M. O. Andreae, A. A. Costa, P. Artaxo
In-situ measurements in convective clouds (up to the freezing level) over the Amazon basin show that smoke from deforestation fires prevents clouds from precipitating until they acquire a vertical...
A. Van Donkelaar, R. V. Martin, W. R. Leaitch, A. M. Macdonald, T. W. Walker, D. G. Streets, ...
We interpret a suite of satellite, aircraft, and ground-based measurements over the North Pacific Ocean and western North America during April–May 2006 as part of the Intercontinental Chemical...
K. Hungershoefer, K. Zeromskiene, Y. Iinuma, G. Helas, J. Trentmann, T. Trautmann, ...
A better characterisation of the optical properties of biomass burning aerosol as a function of the burning conditions is required in order to quantify their effects on climate and atmospheric...
The role of iron and black carbon in aerosol light absorption (2008)
Y. Derimian, A. Karnieli, Y. J. Kaufman, M. O. Andreae, T. W. Andreae, O. Dubovik, ...
Iron is a major component of atmospheric aerosols, influencing the light absorption ability of mineral dust, and an important micronutrient that affects oceanic biogeochemistry. The regional...
R. M. Garland, H. Yang, O. Schmid, D. Rose, A. Nowak, P. Achtert, ...
The scattering and absorption of solar radiation by atmospheric aerosols is a key element of the Earth's radiative energy balance and climate. The optical properties of aerosol particles are,...
Water vapor release from biomass combustion (2008)
R. S. Parmar, M. Welling, M. O. Andreae, G. Helas
We report on the emission of water vapor from biomass combustion. Concurrent measurements of carbon monoxide and carbon dioxide are used to scale the concentrations of water vapor found, and are...
B. W. Sinha, P. Hoppe, J. Huth, S. Foley, M. O. Andreae
Sulfur isotope analysis of atmospheric aerosols is a well established tool for identifying sources of sulfur in the atmosphere, estimating emission factors, and tracing the spread of sulfur from...
B. Wilske, J. Burgheimer, A. Karnieli, E. Zaady, M. O. Andreae, D. Yakir, ...
Biological soil crusts (BSC) contribute significantly to the soil surface cover in many dryland ecosystems. A mixed type of BSC, which consists of cyanobacteria, mosses and cyanolichens, constitutes...
B. Wilske, J. Burgheimer, A. Karnieli, E. Zaady, M. O. Andreae, D. Yakir, ...
Biological soil crusts (BSC) contribute significantly to the soil surface cover in many dryland ecosystems. A mixed type of BSC, which consists of cyanobacteria, mosses and cyanolichens, constitutes...
B. Wilske, J. Burgheimer, A. Karnieli, E. Zaady, M. O. Andreae, D. Yakir, ...
Biological soil crusts (BSC) contribute significantly to the soil surface cover in many dryland ecosystems. A mixed type of BSC, which consists of cyanobacteria, mosses and cyanolichens, constitutes...
A. Van Donkelaar, R. V. Martin, W. R. Leaitch, A. M. Macdonald, T. W. Walker, D. G. Streets, ...
We interpret a suite of satellite, aircraft, and ground-based measurements over the North Pacific Ocean and western North America during April–May 2006 as part of the Intercontinental Chemical...
Water vapor release from biofuel combustion (2008)
R. S. Parmar, M. Welling, M. O. Andreae, G. Helas
We report on the emission of water vapor from biofuel combustion. Concurrent measurements of carbon monoxide and carbon dioxide are used to scale the concentrations of water vapor found, and are...
R. M. Garland, H. Yang, O. Schmid, D. Rose, A. Nowak, P. Achtert, ...
The scattering and absorption of solar radiation by atmospheric aerosols is a key element of the Earth's radiative energy balance and climate. The optical properties of aerosol particles are,...
B. Winterholler, P. Hoppe, J. Huth, S. Foley, M. O. Andreae
Sulfur isotope analysis of atmospheric aerosols is a well established tool for identifying sources of sulfur in the atmosphere, estimating emission factors, and tracing the spread of sulfur from...
A large number of published and unpublished measurements of cloud condensation nuclei (CCN) concentrations and aerosol optical thickness (AOT) measurements have been analyzed. AOT measurements were...
D. Rose, A. Nowak, P. Achtert, A. Wiedensohler, M. Hu, M. Shao, ...
Atmospheric aerosol particles serving as cloud condensation nuclei (CCN) are key elements of the hydrological cycle and climate, but their abundance, properties and sources are highly variable and...
D. Rose, A. Nowak, P. Achtert, A. Wiedensohler, M. Hu, M. Shao, ...
Atmospheric aerosol particles serving as cloud condensation nuclei (CCN) are key elements of the hydrological cycle and climate, but their abundance, properties and sources are highly variable and...
Atmospheric Chemistry and Physics Discussions (2007)
S. R. Freitas, K. M. Longo, R. Chatfield, P. Silva Dias, P. Artaxo, ...
We introduce the Coupled Aerosol and Tracer Transport model to the Brazilian developments on the Regional Atmospheric Modeling System (CATT-BRAMS). CATT-BRAMS is an on-line transport model fully...
U. Kuhn, M. O. Andreae, C. Ammann, A. C. Araújo, E. Brancaleoni, P. Ciccioli, ...
We estimated the isoprene and monoterpene source strengths of a pristine tropical forest north of Manaus in the central Amazon Basin using three different micrometeorological flux measurement...
Technical Note: Characterization of a static thermal-gradient CCN counter (2007)
G. P. Frank, U. Dusek, M. O. Andreae
The static (parallel-plate thermal-gradient) diffusion chamber (SDC) was one of the first instruments designed to measure cloud condensation nuclei (CCN) concentrations as a function of...
S. R. Freitas, K. M. Longo, R. Chatfield, D. Latham, M. O. Andreae, ...
We describe and begin to evaluate a parameterization to include the vertical transport of hot gases and particles emitted from biomass burning in low resolution atmospheric-chemistry transport...
W. Elbert, P. E. Taylor, M. O. Andreae, U. Pöschl
Biogenic aerosols play important roles in atmospheric chemistry physics, the biosphere, climate, and public health. Here, we show that fungi which actively discharge their spores with liquids into...
Seasonal variation of ozone deposition to a tropical rain forest in southwest Amazonia (2007)
U. Rummel, C. Ammann, G. A. Kirkman, T. Foken, M. O. Andreae, ...
Within the project <b>EU</b>ropean <b>S</b>tudies on <b>T</b>race gases and <b>A</b>tmospheric <b>CH</b>emistry as a contribution to...
G. Luderer, J. Trentmann, K. Hungershöfer, M. Herzog, M. Fromm, M. O. Andreae
Deep convection induced by large forest fires is an efficient mechanism for transport of aerosol particles and trace gases into the upper troposphere and lower stratosphere (UT/LS). For many...
An airborne regional carbon balance for Central Amazonia (2007)
J. Lloyd, O. Kolle, H. Fritsch, P. Artaxo, ...
We obtained regional estimates of surface CO<sub>2</sub> exchange rates using atmospheric boundary layer budgeting techniques above tropical forest near Manaus, Brazil. Comparisons were...
V. R. Després, J. F. Nowoisky, M. Klose, R. Conrad, M. O. Andreae, U. Pöschl
This study explores the applicability of DNA analyses for the characterization of primary biogenic aerosol (PBA) particles in the atmosphere. Samples of fine particulate matter...
An airborne regional carbon balance for Central Amazonia (2007)
J. Lloyd, O. Kolle, H. Fritsch, P. Artaxo, ...
We obtained regional estimates of surface CO<sub>2</sub> exchange rates using atmospheric boundary layer budgeting techniques above tropical forest near Manaus, Brazil. Comparisons were...
V. Després, J. Nowoisky, M. Klose, R. Conrad, M. O. Andreae, U. Pöschl
This study explores the applicability of molecular methods for the characterization of primary biogenic aerosol (PBA) particles in the atmosphere. Samples of fine particulate matter (PM2.5) and total...
U. Kuhn, M. O. Andreae, C. Ammann, A. C. Araújo, E. Brancaleoni, P. Ciccioli, ...
We estimated the isoprene and monoterpene source strengths of a pristine tropical forest north of Manaus in the central Amazon Basin using three different micrometeorological flux measurement...
Seasonal variation of ozone deposition to a tropical rain forest in southwest Amazonia (2007)
U. Rummel, C. Ammann, G. A. Kirkman, T. Foken, M. O. Andreae, ...
Within the project <i>EU</i>ropean <i>S</i>tudies on <i>T</i>race gases and <i>A</i>tmospheric <i>CH</i>emistry as a contribution to...
The role of iron and black carbon in aerosol light absorption (2007)
Y. Derimian, A. Karnieli, Y. J. Kaufman, M. O. Andreae, T. W. Andreae, O. Dubovik, ...
Iron is a major component of atmospheric aerosols, influencing the light absorption ability of mineral dust, and an important micronutrient that affects oceanic biogeochemistry. The regional...
D. Rose, G. P. Frank, U. Dusek, S. S. Gunthe, M. O. Andreae, U. Pöschl
Experimental and theoretical uncertainties in the measurement of cloud condensation nuclei (CCN) with a continuous-flow thermal-gradient CCN counter from Droplet Measurement Technologies (DMT-CCNC)...
S. R. Freitas, K. M. Longo, R. Chatfield, P. Silva Dias, P. Artaxo, ...
We introduce the Coupled Aerosol and Tracer Transport model to the Brazilian developments on the Regional Atmospheric Modeling System (CATT-BRAMS). CATT-BRAMS is an on-line transport model fully...
K. M. Longo, S. R. Freitas, A. Setzer, E. Prins, P. Artaxo, M. O. Andreae
We describe an estimation technique for biomass burning emissions in South America based on a combination of remote sensing fire products and field observations. For each fire pixel detected by...
G. Luderer, J. Trentmann, K. Hungershöfer, M. Herzog, M. Fromm, M. O. Andreae
Deep convection induced by large forest fires is an efficient mechanism for transport of aerosol particles and trace gases into the upper troposphere and lower stratosphere (UT/LS). For many...
K. Hungershöfer, K. Zeromskiene, Y. Iinuma, G. Helas, J. Trentmann, T. Trautmann, ...
A better characterisation of the optical properties of biomass burning aerosol as a function of the burning conditions is required in order to quantify their effects on climate and atmospheric...
Black carbon or brown carbon? The nature of light-absorbing carbonaceous aerosols (2006)
Although the definition and measurement methods of atmospheric ''black carbon'' (''BC'') have long been subjects of scientific controversy, the recent...
Technical note: A method for measuring size-resolved CCN in the atmosphere (2006)
G. P. Frank, U. Dusek, M. O. Andreae
We present a method to investigate cloud condensation nuclei (CCN) concentrations and activation efficiencies as a function of two independent variables, aerosol particle size and water vapor...
W. Elbert, P. E. Taylor, M. O. Andreae, U. Pöschl
Spores and related chemical compounds from actively spore-discharging Ascomycota (AAM) and actively spore-discharging Basidiomycota (ABM) are primary biogenic components of air particulate matter...
S. R. Freitas, K. M. Longo, R. Chatfield, D. Latham, M. O. Andreae, ...
We describe and begin to evaluate a parameterization to include the vertical transport of hot gases and particles emitted from biomass burning in low resolution atmospheric-chemistry transport...
Schmid, O., Artaxo, P., Arnott, W.P., Chand, D., Gatti, L.V., Frank, G.P., ...
Atmospheric Chemistry and Physics, 6(2006) S.3443-62
J. Sciare, K. Oikonomou, H. Cachier, N. Mihalopoulos, M. O. Andreae, W. Maenhaut, ...
As part of the Mediterranean Intensive Oxidant Study (MINOS) performed during August 2001 in the Eastern Mediterranean Region, intensive measurements of chemical and radiative properties of...
P. Guyon, G. Frank, M. Welling, D. Chand, P. Artaxo, L. Rizzo, ...
As part of the LBA-SMOCC (Large-Scale Biosphere-Atmosphere Experiment in Amazonia – Smoke, Aerosols, Clouds, Rainfall, and Climate) 2002 campaign, we studied the emission of carbon monoxide...
I. Trebs, L. L. Lara, L. V. Gatti, P. Artaxo, R. Dlugi, ...
The input of nitrogen (N) to ecosystems has increased dramatically over the past decades. While total N deposition (wet + dry) has been extensively determined in temperate regions, only...
S. Fuzzi, M. O. Andreae, B. J. Huebert, M. Kulmala, T. C. Bond, M. Boy, ...
In spite of impressive advances in recent years, our present understanding of organic aerosol (OA) composition, physical and chemical properties, sources and transformation characteristics is still...
Schnaiter, M., Schmid, O., Petzold, A., Fritzsche, L., Klein, K.F., Andreae, M.O., ...
Aerosol Science and Technology, 39(2005) S.249-60
Schmid, O., Artaxo, P., Arnott, W.P., Chand, D., Gatti, L.V., Frank, G.P., ...
Atmospheric Chemistry and Physics Discussions, 5(2005) S.9355-9404
I. Trebs, F. X. Meixner, J. Slanina, R. Otjes, P. Jongejan, M. O. Andreae
We measured the mixing ratios of ammonia (NH<sub>3</sub>), nitric acid (HNO<sub>3</sub>), nitrous acid (HONO), hydrochloric acid (HCl), sulfur dioxide...
J. Rissler, E. Swietlicki, J. Zhou, G. Roberts, M. O. Andreae, L. V. Gatti, ...
We studied the sub-micrometer atmospheric aerosol particles in the Amazon region, 125 km northeast of Manaus (−1°55.2' S, 59°28.1' W). The measurements were performed during...
R. Krejci, J. Ström, M. De Reus, J. Williams, H. Fischer, M. O. Andreae, ...
We present measurements of aerosol physico-chemical properties below 5 km altitude over the tropical rain forest and the marine boundary layer (MBL) obtained during the LBA-CLAIRE 1998 project. The...
Schmid, O., Schnaiter, M., Andreae, M.O., Linke, C., Moehler, O., Saathoff, H., ...
1st General Assembly of the European Geosciences Union, Nice, F, April 25-30, 2004 (Poster)
Schnaiter, M., Schmid, O., Petzold, A., Andreae, M.O., Linke, C., Möhler, O., ...
8th Internat.Conf.on Carbonaceous Particles in the Atmosphere, Wien, A, September 14-16, 2004
Biosphere-atmosphere interactions. (2003)
Scholes, M.C., Matrai, P.A., Andreae, M.O., Smith, K.A., Manning, M.R., ...
Brasseur, G.P. [Hrsg.]
Jost, C., Trentmann, J., Sprung, D., Andreae, M.O., Dewey, K.
Geophysical Research Letters, 30(16), 1837, doi:10.1029/2003GL017347, 2003
Jost, C., Trentmann, J., Sprung, D., Andreae, M.O., Mc Quaid, J.M., Barjat, H.
Journal of Geophysical Research, 108(D13), 8482, doi:10.1029/2002JD002431, 2003
A. J. Kettle, U. Kuhn, M. Von Hobe, J. Kesselmeier, P. S. Liss, M. O. Andreae
A simple inverse model is proposed to deduce hemisphere-integrated COS flux based on published time series of total column COS. The global atmosphere is divided into two boxes representing the...
Nitrous oxide emissions from the Arabian Sea: A synthesis (2001)
H. W. Bange, M. O. Andreae, S. Lal, C. S. Law, P. K. Patra, ...
We computed high-resolution (1<sup>o</sup> latitude × 1<sup>o</sup> longitude) seasonal and annual nitrous oxide (N<sub>2</sub>O) concentration fields for...