Urmas Hõrrak
机构: University of Tartu, Institute of Physics
每年引用次数
引用次数
引用: 4,750
H-指数: 33
I10-指数 : 46
出版物: 126
Air ion mobility spectrum at a rural area
Urmas Hõrrak
37
2001
Dataset of air ion and aerosol measurements. Tahkuse 2004-2014
Hannes Tammet , Hilja Iher , Eduard Tamm , Kaupo Komsaare
Tartu Ülikool
2017
Characteristics of new-particle formation at three SMEAR stations
Hanna E. Manninen , Urmas Hõrrak , Sander Mirme , Jenni Kontkanen
Finnish Environment Institute
19
2016
Interdisciplinary research at the SMEAR Estonia station
Ülo Niinemets , Ülo Mander , Urmas Hõrrak , Kaido Soosaar
EGUGA 6142
2014
Air ion and aerosol particle measurements and the formation of new particles
Hannes Tammet , Aadu Mirme , Anne Emilia Hirsikko , Pasi Pekka Aalto
50 -53
1
2006
Growth rates of aerosol particles and ions in boreal forest
Anne Emilia Hirsikko , Pasi Pekka Aalto , Markku Kulmala , Lauri Laakso
2005
Observations of air ion and particle size spectrums at SMEAR II
Anne Emilia Hirsikko , Pasi Pekka Aalto , Markku Kulmala , Lauri Laakso
2004
Estimation of the ionization rate from air ion and aerosol particle measurements at boreal forest
Anne Emilia Hirsikko , Pasi Pekka Aalto , J. Salm , Marko Vana
91 -96
2005
Long-term field measurements of charged and neutral clusters using Neutral cluster and Air Ion Spectrometer (NAIS)
Aadu Mirme , Jyri Mikkilä , Urmas Hõrrak , Sander Mirme
Boreal Environment Research Publishing Board
124
2009
Intercomparison of air ion spectrometers (AIS and NAIS): a basis for interpretation.
Katrianne Lehtipalo , Aadu Mirme , Taina Yli-Juuti , Hanna Elina Manninen
2010
Adding pieces to the atmosphere-biosphere feedback puzzle
Ülo Mander , Urmas Hõrrak , Kaido Soosaar , Ahto Kangur
EGU General Assembly Conference Abstracts 11155
2020
An Instrumental Comparison of Mobility and Mass Measurements of Atmospheric Small Ions
Mikael Ehn , Heikki Junninen , Siegfried Schobesberger , Hanna E. Manninen
Aerosol Science and Technology 45 ( 4) 522 -532
58
2011
Interpretation of Atmospheric Aerosol Measurements by Means of a Numerical Simulator of New Particle Formation Events
Aare Luts , Urmas Hõrrak , Jaan Salm , Marko Vana
Aerosol and Air Quality Research 16 ( 4) 930 -942
2016
Air ion measurements as a source of information about atmospheric aerosols
Urmas Hõrrak , Aadu Mirme , Jaan Salm , Eduard Tamm
Atmospheric Research 46 ( 3-4) 233 -242
31
1998
Diurnal variation in the concentration of air ions of different mobility classes in a rural area
Urmas Hõrrak , Jaan Salm , Hannes Tammet
Journal of Geophysical Research 108 ( D20) 4653
55
2003
Atmospheric radioactivity measurements at the SMEAR Estonia Station
Heikki Junninen , Jussi Paatero , Urmas Hõrrak , Xuemeng Chen
EGU General Assembly Conference Abstracts 19757
2020
Intermediate ions in the atmosphere
Hannes Tammet , Kaupo Komsaare , Urmas Hõrrak
Atmospheric Research 135-136 263 -273
8
2014
Global analysis of continental boundary layer new particle formation based on long-term measurements
Tuomo Nieminen , Veli-Matti Kerminen , Tuukka Petäjä , Pasi P. Aalto
Atmospheric Chemistry and Physics 18 ( 19) 14737 -14756
107
2018
Atmospheric new particle formation at the research station Melpitz, Germany: connection with gaseous precursors and meteorological parameters
Johannes Größ , Amar Hamed , André Sonntag , Gerald Spindler
Atmospheric Chemistry and Physics 18 ( 3) 1835 -1861
30
2018
Composition of negative air ions as a function of ion age and selected trace gases: Mass- and mobility distribution
Aare Luts , Tiia-Ene Parts , Urmas Hõrrak , Heikki Junninen
Journal of Aerosol Science 42 ( 11) 820 -838
14
2011