M. O. Andreae

Publication List Details

Period

2001 - 2009

Number

70

Co-Authors

Correlation between cloud condensation nuclei concentration and aerosol optical thickness in remote and polluted regions (2009)

M. O. Andreae

A large number of published and unpublished measurements of cloud condensation nuclei (CCN) concentrations and aerosol optical thickness (AOT) measurements have been analyzed.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...

The Coupled Aerosol and Tracer Transport model to the Brazilian developments on the Regional Atmospheric Modeling System (CATT-BRAMS) – Part 1: Model description and evaluation (2009)

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...

Microbiotic crusts on soil, rock and plants: neglected major players in the global cycles of carbon and nitrogen? (2009)

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...

Sulfur isotope analysis of individual aerosol particles – a new tool for studying heterogeneous oxidation processes in the marine environment (2009)

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....

Cloud condensation nuclei in pristine tropical rainforest air of Amazonia: size-resolved measurements and modeling of atmospheric aerosol composition and CCN activity (2009)

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...

Aerosol- and updraft-limited regimes of cloud droplet formation: influence of particle number, size and hygroscopicity on the activation of cloud condensation nuclei (CCN) (2009)

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...

Biomass burning aerosol emissions from vegetation fires: particle number and mass emission factors and size distributions (2009)

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...

Modeling the variability in annual carbon fluxes related to biological soil crusts in a Mediterranean shrubland (2009)

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...

Aerosol- and updraft-limited regimes of cloud droplet formation: influence of particle number, size and hygroscopicity on the activation of cloud condensation nuclei (CCN) (2009)

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...

Cloud condensation nuclei in pristine tropical rainforest air of Amazonia: size-resolved measurements and modeling of atmospheric aerosol composition and CCN activity (2009)

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...

Molecular distributions of dicarboxylic acids, ketocarboxylic acids and α-dicarbonyls in biomass burning aerosols: implications for photochemical production and degradation in smoke layers (2009)

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...

Calibration and measurement uncertainties of a continuous-flow cloud condensation nuclei counter (DMT-CCNC): CCN activation of ammonium sulfate and sodium chloride aerosol particles in theory and experiment (2008)

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)...

Robust relations between CCN and the vertical evolution of cloud drop size distribution in deep convective clouds (2008)

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...

Analysis of aircraft and satellite measurements from the Intercontinental Chemical Transport Experiment (INTEX-B) to quantify long-range transport of East Asian sulfur to Canada (2008)

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...

Modelling the optical properties of fresh biomass burning aerosol produced in a smoke chamber: results from the EFEU campaign (2008)

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...

Aerosol optical properties in a rural environment near the mega-city Guangzhou, China: implications for regional air pollution, radiative forcing and remote sensing (2008)

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...

Sulfur isotope analyses of individual aerosol particles in the urban aerosol at a central European site (Mainz, Germany) (2008)

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...

The CO2 exchange of biological soil crusts in a semiarid grass-shrubland at the northern transition zone of the Negev desert, Israel (2008)

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...

The CO<sub>2</sub> exchange of biological soil crusts in a semiarid grass-shrubland at the northern transition zone of the Negev desert, Israel (2008)

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...

The CO2 exchange of biological soil crusts in a semiarid grass-shrubland at the northern transition zone of the Negev desert, Israel (2008)

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...

Analysis of aircraft and satellite measurements from the intercontinental chemical transport experiment (INTEX-B) to quantify long-range transport of East Asian Sulfur to Canada (2008)

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...

Aerosol optical properties in a rural environment near the mega-city Guangzhou, China: implications for regional air pollution and radiative forcing (2008)

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,...

Sulfur isotope analyses of individual aerosol particles in the urban aerosol at a central European site (Mainz, Germany) (2008)

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...

Correlation between cloud condensation nuclei concentration and aerosol optical thickness in remote and polluted regions (2008)

M. O. Andreae

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...

Cloud condensation nuclei in polluted air and biomass burning smoke near the mega-city Guangzhou, China – Part 1: Size-resolved measurements and implications for the modeling of aerosol particle hygroscopicity and CCN activity (2008)

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...

Cloud condensation nuclei in polluted air and biomass burning smoke near the mega-city Guangzhou, China – Part 1: Size-resolved measurements and implications for the modeling of aerosol particle hygroscopicity and CCN activity (2008)

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...

Isoprene and monoterpene fluxes from Central Amazonian rainforest inferred from tower-based and airborne measurements, and implications on the atmospheric chemistry and the local carbon budget (2007)

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...

Including the sub-grid scale plume rise of vegetation fires in low resolution atmospheric transport models (2007)

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...

Contribution of fungi to primary biogenic aerosols in the atmosphere: wet and dry discharged spores, carbohydrates, and inorganic ions (2007)

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...

Small-scale mixing processes enhancing troposphere-to-stratosphere transport by pyro-cumulonimbus storms (2007)

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...

Characterization of primary biogenic aerosol particles in urban, rural, and high-alpine air by DNA sequence and restriction fragment analysis of ribosomal RNA genes (2007)

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...

Molecular genetics and diversity of primary biogenic aerosol particles in urban, rural, and high-alpine air (2007)

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...

Isoprene and monoterpene fluxes from Central Amazonian rainforest inferred from tower-based and airborne measurements, and implications on the atmospheric chemistry and the local carbon budget (2007)

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...

Calibration and measurement uncertainties of a continuous-flow cloud condensation nuclei counter (DMT-CCNC): CCN activation of ammonium sulfate and sodium chloride aerosol particles in theory and experiment (2007)

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)...

The Coupled Aerosol and Tracer Transport model to the Brazilian developments on the Regional Atmospheric Modeling System (CATT-BRAMS) – Part 1: Model description and evaluation (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...

The Coupled Aerosol and Tracer Transport model to the Brazilian developments on the Regional Atmospheric Modeling System (CATT-BRAMS) – Part 2: Model sensitivity to the biomass burning inventories (2007)

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...

Small-scale mixing processes enhancing troposphere-to-stratosphere transport by pyro-cumulonimbus storms (2007)

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...

Modelling the optical properties of fresh biomass burning aerosol produced in a smoke chamber: results from the EFEU campaign (2007)

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)

M. O. Andreae, A. Gelencsér

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...

Contribution of fungi to primary biogenic aerosols in the atmosphere: active discharge of spores, carbohydrates, and inorganic ions by Asco- and Basidiomycota (2006)

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...

Including the sub-grid scale plume rise of vegetation fires in low resolution atmospheric transport models (2006)

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...

Aerosol mass closure and reconstruction of the light scattering coefficient over the Eastern Mediterranean Sea during the MINOS campaign (2005)

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...

Airborne measurements of trace gas and aerosol particle emissions from biomass burning in Amazonia (2005)

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...

Dry and wet deposition of inorganic nitrogen compounds to a tropical pasture site (Rondônia, Brazil) (2005)

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...

Critical assessment of the current state of scientific knowledge, terminology, and research needs concerning the role of organic aerosols in the atmosphere, climate, and global change (2005)

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...

Real-time measurements of ammonia, acidic trace gases and water-soluble inorganic aerosol species at a rural site in the Amazon Basin (2004)

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...

Physical properties of the sub-micrometer aerosol over the Amazon rain forest during the wet-to-dry season transition – comparison of modeled and measured CCN concentrations (2004)

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...

Spatial and temporal distribution of atmospheric aerosols in the lowermost troposphere over the Amazonian tropical rainforest (2004)

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...

Comparing forward and inverse models to estimate the seasonal variation of hemisphere-integrated fluxes of carbonyl sulfide (2002)

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...