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Title: New Particle Formation and Growth to Climate-Relevant Aerosols at a Background Remote Site in the Western Himalaya

Journal Article · · Journal of Geophysical Research: Atmospheres
DOI:https://doi.org/10.1029/2020jd033267· OSTI ID:1852747
 [1]; ORCiD logo [1];  [2];  [3]; ORCiD logo [4];  [5];  [6]; ORCiD logo [7]; ORCiD logo [6]
  1. Univ. of Hyderabad (India). Centre for Earth, Ocean and Atmospheric Sciences
  2. Ministry of Earth Sciences, New Delhi (India). India Meteorological Dept.
  3. Finnish Meteorological Inst., Helsinki (Finland); Servicio Meteorológico Nacional, Buenos Aires (Argentina)
  4. Columbia Univ., New York, NY (United States). Lamont‐Doherty Earth Observatory; NASA Goddard Inst. for Space Studies (GISS), New York, NY (United States)
  5. Finnish Meteorological Inst., Helsinki (Finland); North-West Univ., Potchefstroom (South Africa). Atmospheric Chemistry Research Group
  6. Finnish Meteorological Inst., Helsinki (Finland)
  7. Colorado State Univ., Fort Collins, CO (United States). Dept. of Atmospheric Science

New particle formation (NPF) can influence the Earth’s radiative budget when the newly formed particles grow to climate-relevant sizes. Here, we present analysis of 21-months of continuous aerosol size distribution measurements at a background remote site in the western Himalaya and provide observational evidence that newly formed particles grow to cloud condensation nuclei (CCN)-active sizes (i.e. >20-100 nm in diameter). Out of total 55 NPF events, 38 (66%) events occurred in the pre-monsoon season (March-May). NPF events were classified into those with and without pollution influence as polluted and cleaner, respectively, using black carbon data. The analysis of air mass age, based on the ratio of number concentration of Aitken to accumulation mode aerosols, indicated that NPF occurred in the relatively cleaner air masses reaching to the site. The median formation rate of 10 nm particles and particle growth rates for cleaner events were three-fold and two-fold, respectively, higher than polluted events. We present the first estimates of the survival probability of newly formed particles to 50 nm and 100 nm size, which was not attempted in an Indian environment previously. The survival probability to 50 nm particles ranged from 44 to 98%, with a mean and standard deviation of 82 ± 18%. On average, ~60% of the particles surviving to 50 nm survived to 100 nm, making the overall survival probability of 100 nm to 53 ± 31%. This indicates that the probability of nucleated particles growing to CCN-active sizes under a large source of condensing vapor (transported from nearby lower-altitude regions) and low pre-existing particle concentrations (background mountain site) is high compared to the previous studies. These findings highlight the importance of the efficiency of nucleation events for producing CCN, which is a critical basis of aerosol indirect effects.

Research Organization:
Univ. of California, Irvine, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
SC0019000
OSTI ID:
1852747
Journal Information:
Journal of Geophysical Research: Atmospheres, Vol. 126, Issue 7; ISSN 2169-897X
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English

References (78)

Nucleation and Growth of Nanoparticles in the Atmosphere journal November 2011
Effects of 20–100 nm particles on liquid clouds in the clean summertime Arctic journal January 2016
On secondary new particle formation in China journal June 2016
The Lancet Commission on pollution and health journal February 2018
The effect of physical and chemical aerosol properties on warm cloud droplet activation journal January 2006
Determination of cloud condensation nuclei production from measured new particle formation events journal January 2009
Nucleation and condensational growth to CCN sizes during a sustained pristine biogenic SOA event in a forested mountain valley journal January 2012
High frequency new particle formation in the Himalayas journal October 2008
Long term particle size distribution measurements at Mount Waliguan, a high-altitude site in inland China journal January 2009
Atmospheric ions and new particle formation events at a tropical location, Pune, India
  • Kamra, A. K.; Siingh, Devendraa; Gautam, A. S.
  • Quarterly Journal of the Royal Meteorological Society, Vol. 141, Issue 693 https://doi.org/10.1002/qj.2598
journal August 2015
Climatology of new particle formation at Izaña mountain GAW observatory in the subtropical North Atlantic journal January 2014
Persistent daily new particle formation at a mountain-top location journal August 2011
High occurrence of new particle formation events at the Maïdo high-altitude observatory (2150 m), Réunion (Indian Ocean) journal January 2018
Chemical Characterization of Sub-micron Aerosols during New Particle Formation in an Urban Atmosphere journal January 2020
Recommendations for reporting "black carbon" measurements journal January 2013
First long-term study of particle number size distributions and new particle formation events of regional aerosol in the North China Plain journal January 2011
Atmospheric new particle formation from sulfuric acid and amines in a Chinese megacity journal July 2018
Contribution of new particle formation to the total aerosol concentration at the high-altitude site Jungfraujoch (3580 m asl, Switzerland): NEW PARTICLE FORMATION AT JUNGFRAUJOCH journal October 2016
Contributions of volatile and nonvolatile compounds (at 300°C) to condensational growth of atmospheric nanoparticles: An assessment based on 8.5 years of observations at the Central Europe background site Melpitz: CLASSIFICATION OF NANOPARTICLE GROWTH journal January 2017
Measurements in a highly polluted Asian mega city: observations of aerosol number size distribution, modal parameters and nucleation events journal January 2005
Tracer analysis of transport from the boundary layer to the free troposphere journal August 2001
Regional and local new particle formation events observed in the Yangtze River Delta region, China journal February 2017
Physical properties of aerosol particles at a Himalayan background site in India journal January 2009
Exchange Processes in the Atmospheric Boundary Layer Over Mountainous Terrain journal March 2018
On the growth of nucleation mode particles: source rates of condensable vapor in polluted and clean environments journal January 2005
Seasonal variation of aerosol size distributions in the free troposphere and residual layer at the puy de Dôme station, France journal January 2009
Frequent nucleation events at the high altitude station of Chacaltaya (5240 m a.s.l.), Bolivia journal February 2015
Causes and importance of new particle formation in the present-day and preindustrial atmospheres: CAUSES AND ROLE OF NEW PARTICLE FORMATION journal August 2017
Aerosol number size distributions over a coastal semi urban location: Seasonal changes and ultrafine particle bursts journal September 2016
Cloud condensation nuclei production associated with atmospheric nucleation: a synthesis based on existing literature and new results journal January 2012
Effects of air masses and synoptic weather on aerosol formation in the continental boundary layer journal September 2001
The "dual-spot" Aethalometer: an improved measurement of aerosol black carbon with real-time loading compensation journal January 2015
Climatology of New Particle Formation and Corresponding Precursors at Storm Peak Laboratory journal January 2016
Aerosol decadal trends – Part 1: In-situ optical measurements at GAW and IMPROVE stations journal January 2013
Direct Observations of Atmospheric Aerosol Nucleation journal February 2013
Key features of new particle formation events at background sites in China and their influence on cloud condensation nuclei journal August 2016
Aerosol indirect forcing in a global model with particle nucleation journal January 2009
Mobility particle size spectrometers: harmonization of technical standards and data structure to facilitate high quality long-term observations of atmospheric particle number size distributions journal January 2012
New particle formation leads to cloud dimming journal May 2018
Climate Effects of Aerosol-Cloud Interactions journal January 2014
New Particle Formation: A Review of Ground-Based Observations at Mountain Research Stations journal August 2019
Formation and growth rates of ultrafine atmospheric particles: a review of observations journal March 2004
Ambient PM2.5 exposure and expected premature mortality to 2100 in India under climate change scenarios journal January 2018
Evaluation of spatial and temporal heterogeneity of black carbon aerosol mass concentration over India using three year measurements from IMD BC observation network journal June 2020
Efficiency of cloud condensation nuclei formation from ultrafine particles journal January 2007
Formation of Urban Fine Particulate Matter journal February 2015
Boundary layer evolution over the central Himalayas from radio wind profiler and model simulations journal January 2016
Time span and spatial scale of regional new particle formation events over Finland and Southern Sweden journal January 2009
Aerosol measurements at the Gual Pahari EUCAARI station: preliminary results from in-situ measurements journal January 2010
CCN production by new particle formation in the free troposphere journal January 2017
Evidence of new particle formation during post monsoon season over a high-altitude site of the Western Ghats, India journal January 2017
Analysis of feedbacks between nucleation rate, survival probability and cloud condensation nuclei formation journal January 2014
EUCAARI ion spectrometer measurements at 12 European sites – analysis of new particle formation events journal January 2010
Increased new particle yields with largely decreased probability of survival to CCN size at the summit of Mt. Tai under reduced SO2 emissions journal January 2021
New particle formation infrequently observed in Himalayan foothills – why? journal January 2011
Observations of new particle formation at two distinct Indian subcontinental urban locations journal October 2014
Size Matters More Than Chemistry for Cloud-Nucleating Ability of Aerosol Particles journal June 2006
Aerosol-induced intensification of cooling effect of clouds during Indian summer monsoon journal September 2018
A global model study of processes controlling aerosol size distributions in the Arctic spring and summer journal January 2008
Statistical analysis of 4-year observations of aerosol sizes in a semi-rural continental environment journal November 2012
Description of the NMC Global Data Assimilation and Forecast System journal September 1989
Atmospheric new particle formation and growth: review of field observations journal September 2018
Measurements of Aerosol Chemistry during New Particle Formation Events at a Remote Rural Mountain Site journal October 2011
New-particle formation, growth and climate-relevant particle production in Egbert, Canada: analysis from 1 year of size-distribution observations journal January 2014
Effect of the summer monsoon on aerosols at two measurement stations in Northern India – Part 2: Physical and optical properties journal January 2011
Relation of air mass history to nucleation events in Po Valley, Italy, using back trajectories analysis journal January 2007
Secondary new particle formation in Northern Finland Pallas site between the years 2000 and 2010 journal January 2011
Warming-induced increase in aerosol number concentration likely to moderate climate change journal April 2013
New particle formation and ultrafine charged aerosol climatology at a high altitude site in the Alps (Jungfraujoch, 3580 m a.s.l., Switzerland) journal January 2010
A 17 month climatology of the cloud condensation nuclei number concentration at the high alpine site Jungfraujoch journal January 2011
Global analysis of continental boundary layer new particle formation based on long-term measurements journal January 2018
Fine and ultrafine particles at a near–free tropospheric environment over the high-altitude station Hanle in the Trans-Himalaya: New particle formation and size distribution journal January 2011
The effect of mountainous topography on moisture exchange between the “surface” and the free atmosphere journal November 2006
New Particle Formation and Growth Mechanisms in Highly Polluted Environments journal August 2017
Polluted dust promotes new particle formation and growth journal October 2014
Infrequent occurrence of new particle formation at a semi-rural location, Gadanki, in tropical Southern India journal September 2014
Formation and growth of nucleated particles into cloud condensation nuclei: model–measurement comparison journal January 2013
Chemistry and the Linkages between Air Quality and Climate Change journal February 2015