V. Fiedler, R. Nau, S. Ludmann, F. Arnold, H. Schlager, A. Stohl
A large SO2-rich pollution plume of East Asian origin was detected by aircraft based CIMS (Chemical Ionization Mass Spectrometry) measurements at 3–7.5 km altitude over the North Atlantic. The...
East Asian SO2 pollution plume over Europe – Part 2: Evolution and potential impact (2009)
V. Fiedler, F. Arnold, H. Schlager, A. Dörnbrack, L. Pirjola, A. Stohl
We report on the first observation-based case study of an aged East Asian anthropogenic SO2 pollution plume over Europe. Our airborne measurements in that plume detected highly elevated SO2 mole...
V. Fiedler, R. Nau, S. Ludmann, F. Arnold, H. Schlager, A. Stohl
A large SO2-rich pollution plume of Chinese origin was detected by aircraft based CIMS (Chemical Ionization Mass Spectrometry) measurements at 3–7.5 km altitude over the North Atlantic on 3 May...
V. Fiedler, F. Arnold, H. Schlager, L. Pirjola
We report on sulfur dioxide (SO2) induced formation of aerosols and cloud condensation nuclei in an SO2 rich aged (9 days) pollution plume of Chinese origin, which we have detected at 5–7 km...
G. Eerdekens, N. Yassaa, V. Sinha, P. P. Aalto, V. Fiedler, H. Aufmhoff, ...
In this study we present measurements of selected trace gases and aerosol made in a boreal forest during the BACCI-QUEST IV intensive field campaign in Hyytiälä, Finland in April 2005. Several...
Results from the CERN pilot CLOUD experiment (2009)
J. Duplissy, M. B. Enghoff, K. L. Aplin, F. Arnold, H. Aufmhoff, M. Avngaard, ...
During a 4-week run in October–November 2006, a pilot experiment was performed at the CERN Proton Synchrotron in preparation for the CLOUD<sup>1</sup> experiment, whose aim is to study...
14 Group Report: Connections between Aerosol Properties and Forcing of Climate (2008)
F. Arnold, Pa. Durkee, D. J. Hofmann, W. A. Hoppel, M. D. King, ...
The mechanisms by which atmospheric aerosols influence radiative forcing of climate can be distinguished into three categories: 1. Direct forcing. Scattering and absorption of shortwave (solar)...
Laaksonen, A., Kulmala, M., Berndt, T., Stratmann, F., Mikkonen, S., Ruuskanen, A., ...
Atmospheric new particle formation is generally thought to occur due to homogeneous or ion-induced nucleation of sulphuric acid. We compare ambient nucleation rates with laboratory data from...
The role of VOC oxidation products in continental new particle formation (2008)
Laaksonen, A., Kulmala, M., O'Dowd, C. D., Joutsensaari, J., Vaattovaara, P., Mikkonen, S., ...
Aerosol physical and chemical properties and trace gas concentrations were measured during the QUEST field campaign in March?April 2003, in Hyytiälä, Finland. Our aim was to understand the role of...
Laaksonen, A., Kulmala, M., Berndt, T., Stratmann, F., Mikkonen, S., Ruuskanen, A., ...
Atmospheric new particle formation is generally thought to occur due to homogeneous or ion-induced nucleation of sulphuric acid. We compare ambient nucleation rates with laboratory data from...
The role of VOC oxidation products in continental new particle formation (2008)
Laaksonen, A., Kulmala, M., O'Dowd, C. D., Joutsensaari, J., Vaattovaara, P., Mikkonen, S., ...
Aerosol physical and chemical properties and trace gas concentrations were measured during the QUEST field campaign in March?April 2003, in Hyytiälä, Finland. Our aim was to understand the role of...
The role of VOC oxidation products in continental new particle formation (2008)
Laaksonen, A., Kulmala, M., O'Dowd, C. D., Joutsensaari, J., Vaattovaara, P., Mikkonen, S., ...
The role of VOC oxidation products in continental new particle formation (2008)
A. Laaksonen, M. Kulmala, C. D. O'Dowd, J. Joutsensaari, P. Vaattovaara, S. Mikkonen, ...
Aerosol physical and chemical properties and trace gas concentrations were measured during the QUEST field campaign in March–April 2003, in Hyytiälä, Finland. Our aim was to understand the...
A. Laaksonen, M. Kulmala, T. Berndt, F. Stratmann, S. Mikkonen, A. Ruuskanen, ...
Atmospheric new particle formation is generally thought to occur due to homogeneous or ion-induced nucleation of sulphuric acid. We compare ambient nucleation rates with laboratory data from...
A. Laaksonen, M. Kulmala, T. Berndt, F. Stratmann, S. Mikkonen, A. Ruuskanen, ...
Atmospheric new particle formation is generally thought to occur due to homogeneous or ion-induced nucleation of sulphuric acid. We compare ambient nucleation rates with laboratory data from...
A. Laaksonen, M. Kulmala, T. Berndt, F. Stratmann, S. Mikkonen, A. Ruuskanen, ...
Atmospheric new particle formation is generally thought to occur due to homogeneous or ion-induced nucleation of sulphuric acid. We compare ambient nucleation rates with laboratory data from...
A. Laaksonen, M. Kulmala, T. Berndt, F. Stratmann, S. Mikkonen, A. Ruuskanen, ...
Atmospheric new particle formation is generally thought to occur due to homogeneous or ion-induced nucleation of sulphuric acid. We compare ambient nucleation rates with laboratory data from...
The role of VOC oxidation products in continental new particle formation. (2008)
Laaksonen, A., Kulmala, M., O'Dowd, C.D., Joutsensaari, J., Vaattovaara, P., Mikkonen, S., ...
Atmospheric Chemistry and Physics, 8(2008) S.2657-65
www.atmos-chem-phys.org/acp/3/417/ Atmospheric Chemistry and Physics (2007)
So Using, M. Hanke, B. Umann, J. Uecker, F. Arnold, ...
TROpospheric Chemistry) aims at enabling an estimation of the influence of mineral dust, a major, but to date largely ignored component of tropospheric aerosol, on tropospheric oxidant cycles. Within...
M. Ehn, T. Petäjä, H. Aufmhoff, P. Aalto, K. Hämeri, F. Arnold, ...
The hygroscopic growth of aerosol particles present in a boreal forest was measured at a relative humidity of 88%. Simultaneously the gas phase concentration of sulfuric acid, a very hygroscopic...
I. Riipinen, M. Kulmala, F. Arnold, M. Dal Maso, W. Birmili, ...
This study investigates the connections between atmospheric sulphuric acid and new particle formation during QUEST III and BACCI/QUEST IV campaigns. The campaigns have been conducted in Heidelberg...
Speidel, M., Nau, R., Arnold, F., Schlager, H., Stohl, A.
Measurements of atmospheric SO2 have been made at altitudes between ground level and 12 km in the lower, middle and upper troposphere. The measurements were carried out within the framework of the...
Ehn, M., Petaja, T., Aufmhoff, H., Aalto, P., Hameri, K., Arnold, F., ...
The role of VOC oxidation products in continental new particle formation (2007)
Laaksonen, A., Kulmala, M., O'Dowd, C. D., Joutsensaari, J., Vaattovaara, P., Mikkonen, S., ...
Aerosol physical and chemical properties and trace gas concentrations were measured during the QUEST field campaign in March?April, 2003, in Hyytiälä, Finland. Our aim was to understand the role of...
Riipinen, I., Kulmala, M., Arnold, F., Dal Maso, M., Birmili, W., ...
This study investigates the connections between atmospheric sulphuric acid and new particle formation during QUEST III and BACCI/QUEST IV campaigns. The campaigns have been conducted in Heidelberg...
Ehn, M., Petäjä, T., Aufmhoff, H., Aalto, P., Hämeri, K., Arnold, F., ...
The hygroscopic growth of aerosol particles present in a boreal forest was measured at a relative humidity of 88%. Simultaneously the gas phase concentration of sulfuric acid, a very hygroscopic...
The role of VOC oxidation products in continental new particle formation (2007)
Laaksonen, A., Kulmala, M., O'Dowd, C. D., Joutsensaari, J., Vaattovaara, P., Mikkonen, S., ...
Aerosol physical and chemical properties and trace gas concentrations were measured during the QUEST field campaign in March?April, 2003, in Hyytiälä, Finland. Our aim was to understand the role of...
Riipinen, I., Kulmala, M., Arnold, F., Dal Maso, M., Birmili, W., ...
This study investigates the connections between atmospheric sulphuric acid and new particle formation during QUEST III and BACCI/QUEST IV campaigns. The campaigns have been conducted in Heidelberg...
Ehn, M., Petäjä, T., Aufmhoff, H., Aalto, P., Hämeri, K., Arnold, F., ...
The hygroscopic growth of aerosol particles present in a boreal forest was measured at a relative humidity of 88%. Simultaneously the gas phase concentration of sulfuric acid, a very hygroscopic...
The role of VOC oxidation products in continental new particle formation (2007)
A. Laaksonen, M. Kulmala, C. D. O'Dowd, J. Joutsensaari, P. Vaattovaara, S. Mikkonen, ...
Aerosol physical and chemical properties and trace gas concentrations were measured during the QUEST field campaign in March–April, 2003, in Hyytiälä, Finland. Our aim was to understand the...
M. Kulmala, M. Dal Maso, T. Petäjä, I. Riipinen, ...
We have investigated the formation and early growth of atmospheric secondary aerosol particles building on atmospheric measurements. The measurements were part of the QUEST 2 campaign which took...
MALTE – model to predict new aerosol formation in the lower troposphere (2006)
M. Boy, O. Hellmuth, H. Korhonen, E. D. Nilsson, D. ReVelle, A. Turnipseed, ...
The manuscript presents a detailed description of the meteorological and chemical code of Malte – a model to predict new aerosol formation in the lower troposphere. The aerosol dynamics are...
Novel methods for acoustic indoor measurements and applications in aero-engine test cells (2006)
Böhning, P., Siller, H.K.R., Holland, K.R., Arnold, F., Kempton, A.J., Michel, U.
Novel Methods for Acoustic Indoor Measurements and Applications in Aero-Engine Test Cells (2006)
Siller, H., Holland, K., Böhning, P., Arnold, F., Kempton, A.
Novel methods for acoustic indoor measurements and applications in aero-engine test cells (2006)
Siller, H., Holland, K., Böhning, P., Arnold, F., Kempton, A.
Riipinen, I., Kulmala, M., Arnold, F., Dal Maso, M., Birmili, W., ...
This study investigates the connections between atmospheric sulphuric acid and new particle formation during QUEST III and BACCI/QUEST IV campaigns. The campaigns have been conducted in Heidelberg...
Ehn, M., Petäjä, T., Aufmhoff, H., Aalto, P., Hämeri, K., Arnold, F., ...
Freshly formed atmospheric aerosol particles are neither large enough to efficiently scatter incoming solar radiation nor able to act as cloud condensation nuclei. As the particles grow larger, their...
Kulmala, M., Dal Maso, M., Petäjä, T., Riipinen, I., ...
We have investigated the formation and early growth of atmospheric secondary aerosol particles building on atmospheric measurements. The measurements were part of the QUEST 2 campaign which took...
MALTE ? Model to predict new aerosol formation in the lower troposphere (2006)
Boy, M., Hellmuth, O., Korhonen, H., Nilsson, E. D., Revelle, D., Turnipseed, A., ...
The manuscript presents a detailed description of the meteorological and chemical code of Malte ? a model to predict new aerosol formation in the lower troposphere. The aerosol dynamics are achieved...
MALTE ? model to predict new aerosol formation in the lower troposphere (2006)
Boy, M., Hellmuth, O., Korhonen, H., Nilsson, E. D., Revelle, D., Turnipseed, A., ...
The manuscript presents a detailed description of the meteorological and chemical code of Malte ? a model to predict new aerosol formation in the lower troposphere. The aerosol dynamics are achieved...
Kulmala, M., Dal Maso, M., Petäjä, T., Riipinen, I., ...
We have investigated the formation and early growth of atmospheric secondary aerosol particles building on atmospheric measurements. The measurements were part of the QUEST 2 campaign which took...
Riipinen, I., Kulmala, M., Arnold, F., Dal Maso, M., Birmili, W., ...
This study investigates the connections between atmospheric sulphuric acid and new particle formation during QUEST III and BACCI/QUEST IV campaigns. The campaigns have been conducted in Heidelberg...
Ehn, M., Petäjä, T., Aufmhoff, H., Aalto, P., Hämeri, K., Arnold, F., ...
Freshly formed atmospheric aerosol particles are neither large enough to efficiently scatter incoming solar radiation nor able to act as cloud condensation nuclei. As the particles grow larger, their...
Kulmala, M., Dal Maso, M., Petäjä, T., Riipinen, I., ...
We have investigated the formation and early growth of atmospheric secondary aerosol particles building on atmospheric measurements. The measurements were part of the QUEST 2 campaign which took...
MALTE ? Model to predict new aerosol formation in the lower troposphere (2006)
Boy, M., Hellmuth, O., Korhonen, H., Nilsson, E. D., Revelle, D., Turnipseed, A., ...
The manuscript presents a detailed description of the meteorological and chemical code of Malte ? a model to predict new aerosol formation in the lower troposphere. The aerosol dynamics are achieved...
MALTE ? model to predict new aerosol formation in the lower troposphere (2006)
Boy, M., Hellmuth, O., Korhonen, H., Nilsson, E. D., Revelle, D., Turnipseed, A., ...
The manuscript presents a detailed description of the meteorological and chemical code of Malte ? a model to predict new aerosol formation in the lower troposphere. The aerosol dynamics are achieved...
Kulmala, M., Dal Maso, M., Petäjä, T., Riipinen, I., ...
We have investigated the formation and early growth of atmospheric secondary aerosol particles building on atmospheric measurements. The measurements were part of the QUEST 2 campaign which took...
MALTE – Model to predict new aerosol formation in the lower troposphere (2006)
M. Boy, O. Hellmuth, H. Korhonen, E. D. Nilsson, D. ReVelle, A. Turnipseed, ...
The manuscript presents a detailed description of the meteorological and chemical code of Malte – a model to predict new aerosol formation in the lower troposphere. The aerosol dynamics are...
M. Kulmala, M. Dal Maso, T. Petäjä, I. Riipinen, ...
We have investigated the formation and early growth of atmospheric secondary aerosol particles building on atmospheric measurements. The measurements were part of the QUEST 2 campaign which took...
MALTE – Model to predict new aerosol formation in the lower troposphere (2006)
M. Boy, O. Hellmuth, H. Korhonen, E. D. Nilsson, D. ReVelle, A. Turnipseed, ...
The manuscript presents a detailed description of the meteorological and chemical code of Malte – a model to predict new aerosol formation in the lower troposphere. The aerosol dynamics are...
Fiedler,V., Dal Maso,M., Boy,M., Aufmhoff,H., Hoffmann,J., Schuck,T., ...
Atmospheric gaseous sulphuric acid was measured and its influence on particle formation and growth was investigated building on aerosol data. The measurements were part of the EU-project QUEST and...
Huntrieser,H., Heland,J., Schlager,H., Forster,C., Stohl,A., Aufmhoff,H., ...
During the airborne CONTRACE field experiment carried out in November 2001 a number of polluted layers of North American (NA) origin were observed in the free troposphere over Europe. For the first...
V. Fiedler, M. Dal Maso, M. Boy, H. Aufmhoff, J. Hoffmann, T. Schuck, ...
Atmospheric gaseous sulphuric acid was measured and its influence on particle formation and growth was investigated building on aerosol data. The measurements were part of the EU-project QUEST and...
K. Sellegri, B. Umann, M. Hanke, F. Arnold
Measurements of atmospheric volatile organic compounds were performed in the Finnish Boreal forest atmosphere during spring 2003, as part of the project QUEST (Quantification of Aerosol Nucleation in...
K. Sellegri, M. Hanke, B. Umann, F. Arnold, M. Kulmala
Biogenic VOCs are important in the growth and possibly also in the early stages of formation of atmospheric aerosol particles. In this work, we present 10 min-time resolution measurements of organic...
Sulphuric acid closure and contribution to nucleation mode particle growth (2005)
M. Boy, M. Kulmala, T. M. Ruuskanen, M. Pihlatie, A. Reissell, P. P. Aalto, ...
Sulphuric acid concentrations were measured and calculated based on pseudo steady state model with corresponding measurements of CO, NOx, O3, SO2, methane and non-methane hydrocarbon (NMHC)...
Huntrieser, H., Heland, J., Schlager, H., Forster, C., Stohl, A., Aufmhoff, H., ...
During the airborne CONTRACE field experiment carried out in November 2001 a number of polluted layers of North American (NA) origin were observed in the free troposphere over Europe. For the first...
Speidel, M., Arnold, F., Nau, R., Schuck, T., Schlager, H., Roiger, A., ...
Final Preflight Calibration of ARPA/AFCRL CVF II Spectrometer. (2005)
The final preflight calibration tests of the CVF(Circular Variable Filter) II spectroradiometer were performed in the Aerospace Research Chamber (7V). These tests included linearity, absolute...
Huntrieser, H., Heland, J., Schlager, H., Forster, C., Stohl, A., Aufmhoff, H., ...
During the airborne CONTRACE field experiment carried out in November 2001 a number of polluted layers of North American (NA) origin were observed in the free troposphere over Europe. For the first...
Fiedler, V., Dal Maso, M., Boy, M., Aufmhoff, H., Hoffmann, J., Schuck, T., ...
Atmospheric gaseous sulphuric acid was measured and its influence on particle formation and growth was investigated building on aerosol data. The measurements were part of the EU-project QUEST and...
Fiedler, V., Dal Maso, M., Boy, M., Aufmhoff, H., Hoffmann, J., Schuck, T., ...
Atmospheric gaseous sulphuric acid was measured and its influence on particle formation and growth was investigated building on aerosol data. The measurements were part of the EU-project QUEST and...
Fiedler, V., Dal Maso, M., Boy, M., Aufmhoff, H., Hoffmann, J., Schuck, T., ...
Atmospheric gaseous sulphuric acid was measured and its influence on particle formation and growth was investigated building on aerosol data. The measurements were part of the EU-project QUEST and...
Sulphuric acid closure and contribution to nucleation mode particle growth (2005)
Boy, M., Kulmala, M., Ruuskanen, T. M., Pihlatie, M., Reissell, A., Aalto, P. P., ...
Sulphuric acid concentrations were measured and calculated based on pseudo steady state model with corresponding measurements of CO, NOx, O3, SO2, methane and non-methane hydrocarbon (NMHC)...
Sellegri, K., Hanke, M., Umann, B., Arnold, F., Kulmala, M.
Biogenic VOCs are important in the growth and possibly also in the early stages of formation of atmospheric aerosol particles. In this work, we present 10 min-time resolution measurements of organic...
Sellegri, K., Umann, B., Hanke, M., Arnold, F.
Measurements of atmospheric volatile organic compounds were performed in the Finnish Boreal forest atmosphere during spring 2003, as part of the project QUEST (Quantification of Aerosol Nucleation in...
Fiedler, V., Dal Maso, M., Boy, M., Aufmhoff, H., Hoffmann, J., Schuck, T., ...
Atmospheric gaseous sulphuric acid was measured and its influence on particle formation and growth was investigated building on aerosol data. The measurements were part of the EU-project QUEST and...
Fiedler, V., Dal Maso, M., Boy, M., Aufmhoff, H., Hoffmann, J., Schuck, T., ...
Atmospheric gaseous sulphuric acid was measured and its influence on particle formation and growth was investigated building on aerosol data. The measurements were part of the EU-project QUEST and...
Sulphuric acid closure and contribution to nucleation mode particle growth (2005)
Boy, M., Kulmala, M., Ruuskanen, T. M., Pihlatie, M., Reissell, A., Aalto, P. P., ...
Sulphuric acid concentrations were measured and calculated based on pseudo steady state model with corresponding measurements of CO, NOx, O3, SO2, methane and non-methane hydrocarbon (NMHC)...
Sellegri, K., Hanke, M., Umann, B., Arnold, F., Kulmala, M.
Biogenic VOCs are important in the growth and possibly also in the early stages of formation of atmospheric aerosol particles. In this work, we present 10 min-time resolution measurements of organic...
Sellegri, K., Umann, B., Hanke, M., Arnold, F.
Measurements of atmospheric volatile organic compounds were performed in the Finnish Boreal forest atmosphere during spring 2003, as part of the project QUEST (Quantification of Aerosol Nucleation in...
V. Fiedler, M. Dal Maso, M. Boy, H. Aufmhoff, J. Hoffmann, T. Schuck, ...
Atmospheric gaseous sulphuric acid was measured and its influence on particle formation and growth was investigated building on aerosol data. The measurements were part of the EU-project QUEST and...
Huntrieser, H., Heland, J., Schlager, H., Forster, C., Stohl, A., Aufmhoff, H., ...
Journal of Geophysical Research, 110(D01), D01305, doi:10.1029/2004JD005045, 2005
Huntrieser, H., Heland, J., Schlager, H., Forster, C., Stohl, A., Aufmhoff, H., ...
Deutsch-Österreichisch-Schweizerische Meteorologen-Tagung (DACH 2004), Karlsruhe, 7.- 10.September 2004
Kinetic nucleation and ions in boreal forest particle formation events (2004)
L. Laakso, T. Anttila, P. P. Aalto, M. Kulmala, U. Hõrrak, ...
In order to gain a more comprehensive picture on different mechanisms behind atmospheric particle formation, measurement results from QUEST 2-campaign are analyzed with an aid of an aerosol dynamic...
Sorokin, A., Katragkou, E., Arnold, F., Busen, R., Schumann, U.
An estimation of the conversion efficiency (ε) of fuel sulfur to SO3 and H2SO4, where ε=([SO3]+[H2SO4])/[ST] and [ST] is the total sulfur atom concentration in the exhaust at the exit of an...
Particles and Cirrus Clouds (PAZI) - Overview of Results 2000-2003 (2004)
Kärcher, Bernd, Schumann, Ulrich, Brinkop, Sabine, Busen, Reinhold, Fiebig, Markus, Flentje, Harald, ...
Reactive Plasticizers for High Temperature Quinoxaline Thermoplastics (2004)
Kovar, R. F., Ehlers, G. L., Arnold, F.
This report is concerned with a novel approach to the processing of high temperature thermoplastics. A series of bis(ethynylquinoxaline) monomers were prepared to demonstrate the feasibility of using...
Synthesis and Thermomechanical Properties of New AT-Phenylene R Systems (2004)
A series of high molecular weight (550-700 amu range) bis-phenol based acetylene terminated (AT) resins were synthesized by reacting four moles of 4,4'dihalodiphenylsulfone (chloro and fluoro) with...
Synthesis and Properties of Arylethersulfone Thermoset Systems (2004)
Lindley, P., Picklesimer, L., Evans, B., Kane, J., Arnold, F.
A series of acetylene-terminated (AT) oligomeric arylether sulfones were synthesized which upon curing possess higher molecular weight between crosslinks than earlier AT sulfones. A correlation...
Particles and Cirrus Clouds (PAZI): Overview of results 2000 - 2003 (2004)
Kärcher, B., Schumann, U., Brinkop, S., Busen, R., Fiebig, M., Flentje, H., ...
Katragkou, Eleni, Wilhelm, S., Arnold, F., Wilson, C.
Gaseous S(VI) (SO3 + H2SO4) has been measured by chemical ionization mass spectrometry (CIMS) in the simulated internal flow of an aircraft gas turbine in a test rig at ground level during the...
Kinetic nucleation and ions in boreal particle formation events (2004)
Laakso, L., Anttila, T., Lehtinen, K., Aalto, P., Kulmala, M., Horrak, U., ...
Sulphuric acid closure and contribution to nucleation mode particle growth (2004)
Boy, M., Kulmala, M., Ruuskanen, T. M., Pihlatie, M., Reissell, A., Aalto, P. P., ...
Sulphuric acid concentrations were measured and calculated based on pseudo steady state model with corresponding measurements of CO, NOx, O3, SO2, methane and non-methane hydrocarbon (NMHC)...
Sellegri, K., Hanke, M., Umann, B., Arnold, F., Kulmala, M.
Biogenic VOCs are important in the growth and possibly also in the formation of atmospheric aerosol particles. In this work, we present 10 min-time resolution measurements of organic trace gases at...
Kinetic nucleation and ions in boreal particle formation events (2004)
Laakso, L., Anttila, T., Lehtinen, K. E. J., Aalto, P. P., Kulmala, M., Hõrrak, U., ...
In order to gain a more comprehensive picture on different mechanisms behind atmospheric particle formation, measurement results from QUEST 2-campaign are analyzed with an aid of an aerosol dynamic...
Sellegri, K., Umann, B., Hanke, M., Arnold, F.
Measurements of atmospheric volatile organic compounds were performed in the Finnish Boreal forest atmosphere during spring 2003, as part of the project QUEST (Quantification of Aerosol Nucleation in...
Kinetic nucleation and ions in boreal forest particle formation events (2004)
Laakso, L., Anttila, T., Lehtinen, K. E. J., Aalto, P. P., Kulmala, M., Hõrrak, U., ...
In order to gain a more comprehensive picture on different mechanisms behind atmospheric particle formation, measurement results from QUEST 2-campaign are analyzed with an aid of an aerosol dynamic...
Sulphuric acid closure and contribution to nucleation mode particle growth (2004)
Boy, M., Kulmala, M., Ruuskanen, T. M., Pihlatie, M., Reissell, A., Aalto, P. P., ...
Sulphuric acid concentrations were measured and calculated based on pseudo steady state model with corresponding measurements of CO, NOx, O3, SO2, methane and non-methane hydrocarbon (NMHC)...
Sellegri, K., Hanke, M., Umann, B., Arnold, F., Kulmala, M.
Biogenic VOCs are important in the growth and possibly also in the formation of atmospheric aerosol particles. In this work, we present 10 min-time resolution measurements of organic trace gases at...
Kinetic nucleation and ions in boreal particle formation events (2004)
Laakso, L., Anttila, T., Lehtinen, K. E. J., Aalto, P. P., Kulmala, M., Hõrrak, U., ...
In order to gain a more comprehensive picture on different mechanisms behind atmospheric particle formation, measurement results from QUEST 2-campaign are analyzed with an aid of an aerosol dynamic...
Sellegri, K., Umann, B., Hanke, M., Arnold, F.
Measurements of atmospheric volatile organic compounds were performed in the Finnish Boreal forest atmosphere during spring 2003, as part of the project QUEST (Quantification of Aerosol Nucleation in...
Kinetic nucleation and ions in boreal forest particle formation events (2004)
Laakso, L., Anttila, T., Lehtinen, K. E. J., Aalto, P. P., Kulmala, M., Hõrrak, U., ...
In order to gain a more comprehensive picture on different mechanisms behind atmospheric particle formation, measurement results from QUEST 2-campaign are analyzed with an aid of an aerosol dynamic...
K. Sellegri, B. Umann, M. Hanke, F. Arnold
Measurements of atmospheric volatile organic compounds were performed in the Finnish Boreal forest atmosphere during spring 2003, as part of the project QUEST (Quantification of Aerosol Nucleation in...
Kinetic nucleation and ions in boreal particle formation events (2004)
L. Laakso, T. Anttila, P. P. Aalto, M. Kulmala, U. Hõrrak, ...
In order to gain a more comprehensive picture on different mechanisms behind atmospheric particle formation, measurement results from QUEST 2-campaign are analyzed with an aid of an aerosol dynamic...
K. Sellegri, M. Hanke, B. Umann, F. Arnold, M. Kulmala
Biogenic VOCs are important in the growth and possibly also in the formation of atmospheric aerosol particles. In this work, we present 10 min-time resolution measurements of organic trace gases at...
Sulphuric acid closure and contribution to nucleation mode particle growth (2004)
M. Boy, M. Kulmala, T. M. Ruuskanen, M. Pihlatie, A. Reissell, P. P. Aalto, ...
Sulphuric acid concentrations were measured and calculated based on pseudo steady state model with corresponding measurements of CO, NO<sub>x</sub>, O<sub>3</sub>,...
Monitoring trends in under-5 mortality rates through national birth history surveys (2004)
Korenromp, E. L., Arnold, F., Williams, B. G., Nahlen, B. L., Snow, R. W.
Background We assessed whether Demographic and Health Surveys (DHS), a large and high-quality source of under-5 mortality estimates in developing countries, would be able to detect reductions in...
Monitoring trends in under-5 mortality rates through national birth history surveys (2004)
Korenromp, EL, Arnold, F, Williams, BG, Nahlen, BL, Snow, RW
Background We assessed whether Demographic and Health Surveys (DHS), a large and high-quality source of under-5 mortality estimates in developing countries, would be able to detect reductions in...
Particles and cirrus clouds (PAZI): overview of results 2000 - 2003. (2004)
Kärcher, B., Schumann, U., Brinkop, S., Busen, R., Fiebig, M., Flentje, H., ...
Aviation, Atmosphere, and Climate (AAC) : Proc.of a European Conf., Friedrichshafen, June 30 - July 3, 2003
Atmospheric oxygenated hydrocarbons (OHCs), including acetone, were measured at altitudes between 8.5 and 12.5 km using an aircraft-based chemical ionization mass spectrometer (CIMS) instrument...
Particles and Cirrus Clouds (PAZI): Overview of results 2000-2003 (2003)
Kärcher, B., Schumann, U., Brinkop, S., Busen, R., Flentje, H., Gierens, K., ...
On the relationship between acetone and carbon monoxide in different air masses (2003)
M. De Reus, H. Fischer, F. Arnold, J. De Gouw, R. Holzinger, C Warneke, ...
Carbon monoxide and acetone measurements are presented for five aircraft measurement campaigns at mid-latitudes, polar and tropical regions in the northern hemisphere. Throughout all campaigns, free...
M. Hanke, B. Umann, J. Uecker, F. Arnold, H. Bunz
The EU-project MINATROC (MINeral dust And TROpospheric Chemistry) aims at enabling an estimation of the influence of mineral dust, a major, but to date largely ignored component of tropospheric...
An Inverse Modeling Study of Intercontinental Pollution Transport using Aircraft Measurements (2003)
Stohl, A., Forster, C., Eckhardt, S., Huntrieser, H., Heland, J., Schlager, H., ...
Nitric Acid Partitioning in Cirrus Clouds: The Role of Inerstital Aerosol (2003)
Krämer, M., Beuermann, J., Schiller, C., Grimm, F., Arnold, F., Peter, T., ...
A Backward Modeling Study of Intercontinental Pollution Transport using Aircraft Measurements (2003)
Stohl, A., Forster, C., Eckhardt, S., Spichtinger, N., Huntrieser, H., Heland, J., ...
Atmospheric oxygenated hydrocarbons (OHCs), including acetone, were measured at altitudes between 8.5 and 12.5 km using an aircraft-based chemical ionization mass spectrometer (CIMS) instrument...
On the relationship between acetone and carbon monoxide in different air masses (2003)
De Reus, M., Fischer, H., Arnold, F., De Gouw, J., Holzinger, R., Warneke, C., ...
Hanke, M., Umann, B., Uecker, J., Arnold, F., Bunz, H.
The EU-project MINATROC (MINeral dust And TROpospheric Chemistry) aims at enabling an estimation of the influence of mineral dust, a major, but to date largely ignored component of tropospheric...
On the relationship between acetone and carbon monoxide in air masses of different origin (2003)
De Reus, M., Fischer, H., Arnold, F., De Gouw, J., Holzinger, R., Warneke, C., ...
Carbon monoxide and acetone measurements are presented for five aircraft measurement campaigns at mid-latitudes, polar and tropical regions in the northern hemisphere. Throughout all campaigns, free...
Krämer, M., Beuermann, J., Schiller, C., Grimm, F., Arnold, F., Peter, T., ...
From a synopsis of field, laboratory and model studies at T>205 K as well as from the field experiments POLSTAR at T
On the relationship between acetone and carbon monoxide in different air masses (2003)
De Reus, M., Fischer, H., Arnold, F., De Gouw, J., Holzinger, R., Warneke, C., ...
Carbon monoxide and acetone measurements are presented for five aircraft measurement campaigns at mid-latitudes, polar and tropical regions in the northern hemisphere. Throughout all campaigns, free...
Hanke, M., Umann, B., Uecker, J., Arnold, F., Bunz, H.
The EU-project MINATROC (MINeral dust And TROpospheric Chemistry) aims at enabling an estimation of the influence of mineral dust, a major, but to date largely ignored component of tropospheric...
On the relationship between acetone and carbon monoxide in air masses of different origin (2003)
De Reus, M., Fischer, H., Arnold, F., De Gouw, J., Holzinger, R., Warneke, C., ...
Carbon monoxide and acetone measurements are presented for five aircraft measurement campaigns at mid-latitudes, polar and tropical regions in the northern hemisphere. Throughout all campaigns, free...
Krämer, M., Beuermann, J., Schiller, C., Grimm, F., Arnold, F., Peter, T., ...
From a synopsis of field, laboratory and model studies at T>205 K as well as from the field experiments POLSTAR at T
On the relationship between acetone and carbon monoxide in different air masses (2003)
De Reus, M., Fischer, H., Arnold, F., De Gouw, J., Holzinger, R., Warneke, C., ...
Carbon monoxide and acetone measurements are presented for five aircraft measurement campaigns at mid-latitudes, polar and tropical regions in the northern hemisphere. Throughout all campaigns, free...
Hanke, M., Umann, B., Uecker, J., Arnold, F., Bunz, H.
The EU-project MINATROC (MINeral dust And TROpospheric Chemistry) aims at enabling an estimation of the influence of mineral dust, a major, but to date largely ignored component of tropospheric...
Sorokin, A., Arnold, F., Mirabel, P.
A model which considers the formation and evolution of combustion ions in a combustor of an aircraft engine in dependence on the electron detachment efficiency from negative ions is presented. It is...
Sorokin, A., Arnold, F., Mirabel, P.
A model which considers the formation and evolution of combustion ions in a combustor of an aircraft engine in dependence on the electron detachment efficiency from negative ions is presented. It is...
Hanke, M., Umann, B., Uecker, J., Arnold, F., Bunz, H.
Atmospheric Chemistry and Physics, 3(2003) S.417-36
Schumann,U., Arnold,F., Busen,R., Curtius,J., Karcher,B., Kiendler,A., ...
[1] The series of SULFUR experiments was performed to determine the aerosol particle and contrail formation properties of aircraft exhaust plumes for different fuel sulfur contents (FSC, from 2 to...
Eichkorn,S., Wilhelm,S., Aufmhoff,H., Wohlfrom,K. H., Arnold,F.
[1] Large positive cluster ions with atomic mass numbers up to 2500 have for the first time been detected in the upper troposphere using an aircraft-based large ion mass spectrometer (LIOMAS). Three...
First mass-spectrometric composition measurements with high mass resolution of positive chemiions (Cl) were made in the exhaust of an aircraft jet engine at ground level. The ion mass spectrometer...
Curtius,J., Arnold,F., Schulte,P.
[1] Sulfuric acid concentrations were measured in the exhaust plume of a B737-300 aircraft in flight. The measurements were made onboard of the German research aircraft Falcon using the Volatile...
Eichkorn,S., Wohlfrom,K. H., Arnold,F., Busen,R.
Mass distributions of positive and negative chemiions (CI) were measured in the exhaust plume of an aircraft jet engine at the ground at exhaust gas ages around 0.1 s using an ion mass spectrometer...
Measurements of negative chemiions (CI) emitted by a jet engine at the ground were made with an ion trap mass spectrometer. The new instrument offered a high-mass resolution, which led to a first...
Hanke,M., Uecker,J., Reiner,T., Arnold,F.
ROXMAS (ROx Chemical Conversion/CIMS), a novel method for atmospheric speciated measurements of HO2 and the sum of organic peroxy radicals (SigmaRO(2)) developed by MPI-K, has been successfully...
Investigating a simple model of cutaneous wound healing angiogenesis (2002)
Gaffney, E A, Pugh, K, Maini, P K, Arnold, F
A simple model of wound healing angiogenesis is presented, and investigated using numerical and asymptotic techniques. The model captures many key qualitative features of the wound healing angiogenic...
Schumann, U., Arnold, F., Busen, R., Kärcher, B., ...
The series of SULFUR experiments was performed to determine the aerosol particle and contrail formation properties of aircraft exhaust plumes for different fuel sulfur contents (FSC, from 2 to 5500...
A Backward Modeling Study of Intercontinental Pollution Transport using Aircraft Measurements (2002)
Stohl, A., Forster, C., Eckhardt, S., Huntrieser, H., Heland, J., Schlager, H., ...
Hanke, M., Uecker, J., Reiner, T., Arnold, F.
ROXMAS (ROx Chemical Conversion/CIMS), a novel method for atmospheric speciated measurements of HO2 and the sum of organic peroxy radicals (SigmaRO(2)) developed by MPI-K, has been successfully...
Eichkorn, S., Wohlfrom, K. H., Arnold, F., Busen, R.
Mass distributions of positive and negative chemiions (CI) were measured in the exhaust plume of an aircraft jet engine at the ground at exhaust gas ages around 0.1 s using an ion mass spectrometer...
Measurements of negative chemiions (CI) emitted by a jet engine at the ground were made with an ion trap mass spectrometer. The new instrument offered a high-mass resolution, which led to a first...
First mass-spectrometric composition measurements with high mass resolution of positive chemiions (Cl) were made in the exhaust of an aircraft jet engine at ground level. The ion mass spectrometer...
Curtius, J., Arnold, F., Schulte, P.
[1] Sulfuric acid concentrations were measured in the exhaust plume of a B737-300 aircraft in flight. The measurements were made onboard of the German research aircraft Falcon using the Volatile...
Schumann, U., Arnold, F., Busen, R., Curtius, J., Karcher, B., Kiendler, A., ...
[1] The series of SULFUR experiments was performed to determine the aerosol particle and contrail formation properties of aircraft exhaust plumes for different fuel sulfur contents (FSC, from 2 to...
Eichkorn, S., Wilhelm, S., Aufmhoff, H., Wohlfrom, K. H., Arnold, F.
[1] Large positive cluster ions with atomic mass numbers up to 2500 have for the first time been detected in the upper troposphere using an aircraft-based large ion mass spectrometer (LIOMAS). Three...
Hanke, M., Umann, B., Uecker, J., Arnold, F., Bunz, B.
The EU-project MINATROC (MINeral dust And TROpospheric Chemistry) aims at enabling an estimation of the influence of mineral dust, a major, but to date largely ignored component of tropospheric...
Hanke, M., Umann, B., Uecker, J., Arnold, F., Bunz, B.
The EU-project MINATROC (MINeral dust And TROpospheric Chemistry) aims at enabling an estimation of the influence of mineral dust, a major, but to date largely ignored component of tropospheric...
Investigating a simple model of cutaneous wound healing angiogenesis (2002)
Gaffney, E. A., Pugh, K., Maini, P. K., Arnold, F.
A simple model of wound healing angiogenesis is presented, and investigated using numerical and asymptotic techniques. The model captures many key qualitative features of the wound healing angiogenic...
M. Hanke, B. Umann, J. Uecker, F. Arnold, B. Bunz
The EU-project MINATROC (MINeral dust And TROpospheric Chemistry) aims at enabling an estimation of the influence of mineral dust, a major, but to date largely ignored component of tropospheric...
Stohl, A., Huntrieser, H., Cooper, O., Eckhardt, S., Forster, C., James, P., ...
10th Scientific Conf.of the Internat.Association of Meteorology and Atmospheric Sciences (IAMAS), Commission for Atmospheric Chemistry and Global Pollution (CACGP),
Huntrieser, H., Heland, J., Forster, C., Lawrence, M., Mannstein, H., Junkermann, W., ...
EUROTRAC Symp.2002, Garmisch-Partenkirchen, 11.-15.März 2002 (Poster)
An instrument for the direct in situ measurement of aerosol sulfuric acid in the atmosphere has been developed, characterized and calibrated. The instrument termed Volatile Aerosol Component Analyzer...
Curtius,J., Sierau,B., Arnold,F., De Reus,M., Strom,J., Scheeren,H. A., ...
Measurements of aerosol sulfuric acid in the free troposphere were performed in the vicinity of Tenerife, Canary Islands (28degreesN, 16degreesW), in July 1997. These measurements were carried out on...
In Situ Observations of Particulate NOy in Cirrus Clouds for Different Atmospheric Conditions (2001)
Schlager, H., Petzold, A., Ziereis, H., Dörnbrack, A., Grimm, F., Arnold, F., ...
Aviation Impact on Atmospheric Composition and Climate (2001)
Schumann, U., Ström, J., Arnold, F., Berntsen, T.K., Forster, P.M. De, ...
Uptake of Nitric Acid in Cirrus Cloud: Results from POLSTAR 1998 (2001)
Krämer, M., Beuermann, J., Schlager, H., Petzold, A., Grimm, F., Arnold, F., ...
An instrument for the direct in situ measurement of aerosol sulfuric acid in the atmosphere has been developed, characterized and calibrated. The instrument termed Volatile Aerosol Component Analyzer...
Curtius, J., Sierau, B., Arnold, F., De Reus, M., Strom, J., Scheeren, H. A., ...
Measurements of aerosol sulfuric acid in the free troposphere were performed in the vicinity of Tenerife, Canary Islands (28degreesN, 16degreesW), in July 1997. These measurements were carried out on...
Addendum to the cloud proposal (2000)
Fastrup, B, Pedersen, E, Lillestol, E, Thorn, E, Bosteels, M, Gonidec, A, ...
A Study of the link between cosmic rays and clouds with a cloud chamber at the CERN PS (2000)
Fastrup, B, Pedersen, E, Lillestol, E, Thorn, E, Bosteels, M, Gonidec, A, ...
CLOUD: An Atmospheric research facility at CERN (2000)
Fastrup, B, Pedersen, E, Lillestol, E, Bosteels, M, Gonidec, A, Kirkby, J, ...
Schumann, U., Schlager, H., Arnold, F., Ovarlez, J., Kelder, H., Hov, O., ...
The Pollution From Aircraft Emissions in the North Atlantic Flight Corridor (POLINAT) projects were undertaken to investigate the impact of aircraft engine exhaust emissions on the state of the...
In Situ Observations of NOy Uptake by Cirrus Clouds during POLSTAR (2000)
Schlager, H., Ziereis, H., Petzold, A., Dörnbrack, A., Grimm, F., Arnold, F., ...
Singh, H., Chen, Y., Tabazadeh, A., Fukui, Y., Bey, I., Yantosca, R., ...
Reiner, T., Möhler, O., Arnold, F.
Journal of Geophysical Research, 103(1998) D23, S.31.309-320
Detection of Massive Negative Chemiions in the Exhaust Plume of a Jet Aircraft in Flight (1999)
Arnold, F., Curtius, J., Sierau, B., Bürger, V., Busen, R., Schumann, U.
Gaseous negative ions were mass spectrometrically measured in the exhaust plume of a jet aircraft in flight. Using a quadrupole mass spectrometer operated in a high-pass mode, it was found that by...
HNO3 Partitioning in Cirrus Clouds (1999)
Meilinger, S.K., Tsias, A., Dreiling, V., Kuhn, M., Feigl, C., Ziereis, H., ...
Observation of NOy uptake by Particles in the Arctic Tropopause Region at Low Temperatures (1999)
Feigl, C., Schlager, H., Ziereis, H., Curtius, J., Arnold, F., Schiller, C.
HNO3 Partitioning in Cirrus Clouds. (1999)
Meilinger, S. K., Tsias, A., Dreiling, V., Kuhn, M., Feigl, Ch., Ziereis, H., ...
Chlorine activation and ozone destruction in the northern lowermost stratosphere. (1999)
Lelieveld, J., Bregman, A., Scheeren, H. A., Ström, J., Carslaw, K. S., Fischer, H., ...
Reiner, T., Möhler, O., Arnold, F.
Journal of Geophysical Research, 104(1999) No.D11, S.13,943-13,952
Degree of Cure, Heat of Reaction, and Viscosity of 8552 and 977-3 HM Epoxy Resin (1998)
Ng, S. J., Boswell, R., Claus, S. J., Arnold, F., Vizzini, A.
The heat of reaction, degree of cure, and viscosity of Hexcel 8552 and Cytec Fiberite 977-3 HM neat resins were measured using a modulated differential scanning calorimeter and a rheometric digital...
Dilution of Aircraft Exhaust Plumes at Cruise Altitudes (1998)
Schumann, Ulrich, Schlager, H., Arnold, F., Baumann, R., Haschberger, Peter, Klemm, O.
The dilution of jet engine exhaust in the plume behind cruising aircraft is determined from measured plume properties. The data set includes in situ measurements of CO2, NO, NOy, SO2, H2O,...
Jet Engine Exhaust Chemiion Measurements: Implications for Gaseous SO3 and H2SO4 (1998)
Arnold, F., Stilp, Th., Busen, R., Schumann, U.
We have made mass spectrometric measurements of negative chemiions (CI) in the exhaust of a jet engine on the ground. The measurements took place at plume ages between 6.6 and 19 ms at low- and...
Aircraft-Borne Measurements of Peroxy Radicals, Related Trace Gases, and UV Radiation (1998)
Reimer, T., Hanke, M., Arnold, F., Ziereis, H., Schlager, H., Junkermann, W.
First Direct Sulfuric Acid Detection in the Exhaust Plume of a Jet Aircraft in Flight (1998)
Curtius, J., Sierau, B., Arnold, F., Baumann, R., Busen, R., Schulte, P., ...
Sulfuric acid (SA) was for the first time directly detected in the exhaust plume of a jet aircraft in flight. The measurements were made by a novel aircraft-based VACA (Volatile Aerosol Component...
Arnold, F., Klemm, M.W., Schneider, J., Gollinger, K., Schumann, U., ...
Mass spectrometric composition measurements of gaseous negative ions have been made in the exhaust plume of a commercial jet aircraft (Airbus A310) in flight at altitudes around 10.4 km and at two...
Dilution of aircraft exhaust plumes at cruise altitudes (1998)
Schumann, U., Schlager, H., Arnold, F., Baumann, R., Haschberger, P., Klemm, O.
The dilution of jet engine exhaust in the plume behind cruising aircraft is determined from measured plume properties. The data set includes in situ measurements of CO2, NO, NOy, SO2, H2O1...
An analysis of quasi-lagrangian observations of particle groth during the POLSTAR-1 campaign (1998)
Meilinger, S.K., Tsias, A., Peter, T., Dreiling, V., Kuhn, M., Ziereis, H., ...
During the POLSTAR-1 winter campaign conducted from Kiruna (Sweden) in 1998 (20 January - 6 February), measurements were made of gas-phase and total water vapour, gas-phase nitric acid, reactive...
Chemical perturbation of the lowermost stratosphere through exchange with the troposphere (1997)
Lelieveld, J., Arnold, F., Bregman, B., Burger, V., Crutzen, P., Fischer, H., ...
Olsen, L, Sherratt, J A, Maini, P K, Arnold, F
Angiogenesis, the process by which new blood capillaries grow into a tissue from surrounding parent vessels, is a key event in dermal wound healing, malignant-tumour growth, and other pathologic...
In-Situ Trace Gas Observations in Dissipating Thunderclouds during POLINAT (1997)
Huntrieser, H., Schlager, H., Velthoven Van, P., Schulte, P., Ziereis, H., Schumann, U., ...
In-Situ Observations of Air Traffic Emission Signatures in the North Atlantic Flight Corridor (1997)
Schlager, H., Konopka, P., Schulte, P., Schumann, U., Ziereis, H., Arnold, F., ...
Focussed aircraft measurements have been carried out over the eastern North Atlantic to search for signals of air traffic emissions in the flight corridor region. Observations include NO, NO2, HNO3,...
Near-Field Measurements on Contrail Properties from Fuels with Different Sulfur Content (1997)
Petzold, A., Busen, R., Schröder, F.P., Baumann, R., Kuhn, M., Ström, J., ...
Microphysical properties of jet exhaust aerosol and contrails were studied in the near field of the emitting aircraft for different fuel sulfur contents. Measurements were performed behind two...
R Mccrindle, F Arnold, G Cook, J Barrett, D Booy
design of an interface for a hospital system for information,
Olsen, L., Sherratt, J. A., Maini, P. K., Arnold, F.
Angiogenesis, the process by which new blood capillaries grow into a tissue from surrounding parent vessels, is a key event in dermal wound healing, malignant-tumour growth, and other pathologic...
In-Situ Trace Gas Observations in Dissipating Thunderclouds during POLINAT (Poster). (1996)
Huntrieser, H., Schlager, H., Van Velthoven, P., Schulte, P., Ziereis, H., Schumann, U., ...
On the Effect of High-Flying Air-Traffic on the Atmosphere (1992)
Schumann, U., Arnold, F., Heimann, D., Reinhardt, M.E., Sausen, R., Schlager, H.
Tropospheric gases, aerosols and photochemical reactions. Group report (1982)
Cicerone, R.J., Arnold, F., Crutzen, P.J., Hornig, D.F., Meixner, F.X., Molina, M.J., ...
Tumours induce the growth of host blood vessels to support their proliferation. This process of angiogenesis is evoked by specific chemical signals. Recognition of these angiogenic factors has led to...