Wednesday, May 3, 2017 -
09:00 to 10:00


-          Presentation: Characterizing Arctic aerosol properties for evaluation of aerosol-cloud interactions on the North Slope of Alaska (Creamean) – 15min

-          Discussion of presentation – 10min

-          Presentation: INTegrated Arctic Observation System, INTAROS H2020 project (Asmi) – 15min

-          Discussion of presentation – 10min

-          Team lead reminders – 10min


IASOA Aerosol Working Group

May 3, 2017


Attendees: Sara Crepinsek, Kostas Eleftheriadis, Vickie Irish, Allison McComiskey, Jessie Creamean, Patrick Hayes, Aki Virkkula, Eija Asmi, Bill Simpson, Patrick Sheridan, Olg Popovicheva, Sangeeta Sharma, Nicholas Spada, Taneil Uttal, Chuck Brock, Rebecca Sheesley, Andreas Massling


Role Call of group members

Characterizing Arctic aerosol properties for evaluation of aerosol-cloud interactions on the North Slope of Alaska (presentation by Creamean) – importance of understanding Arctic aerosols: cloud formation, cloud lifetime, precipitation, radiative forcing, Arctic haze, uncertainties exist in models, overview of the ARM-ACME-V field campaign, flight map of location of measurements taken (aerosol properties, met, radiation, etc.), Prudhoe Bay as source of small numerous aerosols, observed high numbers near Prudhoe particularly near ground below boundary layer likely from oil extraction activities, Prudhoe also a source of black carbon, simulations from HYSPLIT model to show spatial dispersion of particles from Prudhoe Bay over the North Slope, only seeing local pollution and emissions, example of Prudhoe emissions during flight, emissions were persistent and localized, higher altitude and interior impacted by biomass burning, fire effect had high concentrations of particles >100 nm in diameters not as small as Prudhoe Bay, high concentrations of black carbon mainly aloft, elevated CO at the surface and aloft in the interior, overview of flight that was highly impacted by fire/biomass burning in Alaska, use satellite data to compare against, almost all aerosol measurements were elevated during influence from fires, satellite observations indicate high AOD and the presence of smoke and mineral dust from central Alaskan fires, overall: observations from ARM-ACME-V from summer 2015 were used to evaluate the spatiotemporal heterogeneity of aerosol sources on the North Slope of Alaska, oil fields in Prudhoe Bay provide a continuous source of small particles predominantly in the boundary layer, potential to reach cloud heights, the active Alaskan fire season served as a large source of regional biomass burning aerosols, these aerosols were observed from the surface to highest altitudes flown by the G1 indicating these aerosols may have a larger but more sporadic impact on clouds


INTegrated Arctic Observation System, INTAROS H2020 project (presentation by Asmi) – INTAROS is a research and innovation action under the H2020-BG-09 call in 2016 and will run from 2016-2021, coordinator is NERSC, NO, objective is to build an integrated Arctic Observation System (iAOS) by extending, improving, and unifying existing Arctic systems, research project: harmonization and continuous high-quality observations are the target of many ongoing European IR projects, producing data from global scientific and policy-making purposes is a high priority, FMI researchers will impact in exploiting and improving the Arctic atmospheric and snow and sea-ice observations and in science outreach, overview of INTAROS themes: atmosphere, ocean, glaciology, sea ice, terrestrial, marine ecosystem, natural hazards, and community based systems, WP2 – exploitation of existing observing systems, overall objective: assess, exploit, and standardize the existing Arctic observing systems, specific objectives: 1) analyze strengths, weaknesses, and gaps of the existing observation networks and databases, 2) exploit selected datasets in order to increase the quality and number of data products, 3) enhance standardization of data and metadata to ensure that best practices are followed and integrate sparse in situ data into established networks, preparing their delivery to the iAOS, synthesis: recommendations on how to fill the gaps, improve the sampling strategies and data management, and how to sustain and further enhance the integration of multidisciplinary data repositories, main activities in WP2 initially will be the creation of 3 questionnaires to collect the info needed to assess and catalogue systems, datasets, and products, also focus on creation of templates for the deliverables, INTAROS and IASOA: 1) INTAROS provides resources for IASOA, 2) IASOA is an important Arctic atmospheric observing system and collaboration will be very much appreciated and needed, 3) how do you see the definition of IASOA with respect to other networks/standards, 4) what is the role of IASOA in the iAOS created in INTAROS, 5) would someone have interest in participating in INTAROS assessment for their part/data/system


Action Items:

  • Organize IASOA contact with INTAROS (Uttal, Asmi)
  • Send IASOA statement to INTAROS stake holder meeting (Uttal, Crepinsek)
Research Group: