Meetings > Fall Working Groups > 2014 Fall Working Groups

2014 Fall Working Groups Agenda

 

Monday, November 17

1:30 – 5:00 p.m. Salon FGH: Land-atmosphere-cloud interactions (LACI) Plenary (chaired by L. Berg)
1:30 – 2:00 p.m. Plenary talk #1 – Joe Santanello
2:00 – 2:30 p.m. Plenary talk #2 – Pierre Gentine
2:30 – 4:00 p.m. Discussion of Science Questions

  • Question #1: led by Yunyan Zhang, with science nugget presented by Steve Klein
  • Question #2: led by Margaret Torn, with science nugget presented by Ian Williams
  • Question #3: led by Larry Berg, with science nugget presented by Alex Guenther
4:00 – 4:10 p.m. Review of Data Products: Shaocheng Xie
4:10 – 5:00 p.m. Measurement needs: Introduction by Yunyan and Jim Mather
3:00 – 7:30 p.m. White Oak A: Radar Science & Operations Meeting (chaired by P. Kollias and N. Bharadwaj)
3:00 – 3:15 p.m. Introduction – Voyles/Bharadwaj/Johnson/Collis
3:15 – 4:00 p.m. System status and data flow – Bharadwaj/Johnson/Collis
4:00 – 4:20 p.m. DQ Monitoring – Theisen/Clothiaux
4:20 – 5:00 p.m. SACR-2, KAZR-2, XSAPR-2, CSAPR-2 – Bharadwaj/Mead
5:00 – 5:15 p.m. Break
5:15 – 5:30 p.m. Radar activities timeline – Bharadwaj
5:30 – 6:20 p.m. CGA discussion – Bharadwaj/Clothiaux/Kollias
6:20 – 6:30 p.m. Break
6:30 – 6:50 p.m. NSA X-SAPR and KAZR observations for retrieval of ice particle types in Arctic mixedphase
clouds – Oue
6:50 – 7:10 p.m. A new concept of quasi-vertical profiles of polarimetric radar variables – Ryshkov
7:10 – 7:30 p.m. The ARM radars performance during the TMP campaign – Kneifel
6:30 – 8:30 p.m Middlebrook: ALWG AOS Harmonization (by invitation)

Tuesday, November 18

8:00 – 10:00 a.m. Salon FGH: Joint CAPI/ALWG/CLWG Plenary Session on CCN
Framing presentations (20 minutes each, 10 minutes questions/ discussion and transition)
8:00 – 8:30 a.m. CCN parameterizations – Steve Ghan
8:30 – 9:00 a.m. Marine aerosol sources: sea salt and organics – Lewis and Burrows
9:00 – 9:30 a.m. Coalescence scavenging (Azores/VOCALS) – Wood
9:30 – 10:00 a.m. Dicsussion
10:00 – 10:30 a.m. Break
10:30 – 12:00 p.m. Salon FGH: Joint CLWG/CAPI/ALWG Session on modeling warm clouds (Miller, Wood)
10:30 – 10:40 a.m. Overview of the Cases: Why they were selected, their role in guiding ASR science (ENA and SGP), and objectives for the session – M. Miller
10:40 – 10:55 a.m. Short surveys of the characteristics of the ENA cases – X. Dong
10:55 – 11:10 a.m. Modeling perspective for warm low clouds – M. Zhang
11:10 – 11:20 a.m. Discussion
11:20 – 11:35 a.m. Results from RACORO observations – A. Vogelmann
11:35 – 11:50 a.m. Results from RACORO modeling – W. Lin
11:50 – 12:00 p.m. Discussion
12:00 – 1:30 p.m. Lunch Break
12:00 – 1:30 p.m. White Oak A: ARM Data Discovery Tool Hands on Tutorial – How to Find and Order ARM
Data: Recent Changes and “Help” Session – R. McCord
1:30 – 2:30 p.m. Salon FGH: DOE Plenary Session
2:30 – 3:30 p.m. Salon FGH: ALWG Plenary

  • Summary of GEIA Conference (June 2014) – GuentherM
  • AOS Committee Update – McComisey, Wang, Flynn
2:30 – 3:30 p.m. White Oak A: CLWG – Warm Clouds (Miller, Zhang)
2:30 – 2:45 p.m. ENA synoptic/cloud variability – D. Mecham
2:45 – 3:00 p.m. Cloud regime variability over the Azores and the influence of atmospheric dynamics – G. Tselioudis & J. Remillard
3:00 – 3:15 p.m. Near-surface density currents observed under a stratocumulus-topped marine boundary layer – S. Yuter
3:15 – 3:30 p.m. Discussion
2:30 – 3:30 p.m. White Oak B: CAPI – Warm Clouds
2:30 – 2:45 p.m. Are subtropical stratocumulus to cumulus transitions driven by dynamics or microphysics? – C. Bretherton
2:45 – 3:00 p.m. Exploring Entrainment-Mixing-Microphysics Relationships/Interactions in CAPI Context – Y. Liu
3:00 – 3:15 p.m. Aerosol-cloud interactions and synoptic-scale processes from MAGIC – D. Painemal
3:15 – 3:30 p.m. Large increase in cloud drop concentrations and albedo over sea surfaces colder than 7° C – D. Rosenfeld
3:30 – 4:00 p.m. Break
4:00 – 5:30 p.m. White Oak B: ALWG Absorbing Aerosol Breakout (chaired by McComiskey)
(5 Minute presentations)
Introduction and Objectives – McComiskey
Measurement Science

  1. Status of the Photothermal Interferometer – Castillo
  2. Sub-cloud surface albedo algorithm with results for SGP and Table Mountain – Flynn
  3. MFRSR-CID, released for SGP, NSA, and other sites; Extension to SAS-He and longer wavelengths – Flynn

    4. Experimental and Observational Studies

  4. Absorbing aerosol morphology and optical properties – Mazzoleni
  5. Wavelength-dependent measurements of soot optical properties – Foresieri/Onasch
  6. Findings from the SAAS Experiment – Aiken
  7. Morphological Characteristics of Soot-Containing Aerosols during CARES – Moffet
  8. ASR process studies of light absorption by black and brown carbon: Progress, Challenges, and Directions – Dubey
  9. Heterogeneity in aerosol leading to large difference in direct radiative forcing efficiency over the NW Atlantic Ocean – Chand
  10. TBD – Jefferson
  11. Absorbing aerosol: A major cause for systematic biases in retrieving cloud properties from satellite – Z. Li
  12. Chemistry of Atmospheric Brown Carbon – Laskin

    13. Modeling Studies

  13. Global Modeling of Absorption due to Primary Organic Aerosol – Feng
  14. Can we separate the effects (Semi-Direct effects) of radiative forcing due to rapid adjustment from the total aerosol-radiative forcing? – Kotamarthi
4:00 – 5:30 p.m. White Oak A: CLWG – Warm Clouds (Miller, Zhang)
4:00 – 4:15 p.m. What can we learn from high resolution photography of clouds from the surface? – S. Schwartz
4:15 – 4:30 p.m. Observations of Shallow Cumulus Mass Fluz at Barbados and its relationship to cloudiness and boundary layer structure – K. Lamer
4:30 – 4:45 p.m. Mass and water vapor transports in Cumulus topped boundary layers: A case study from the ARM Darwin facility – V. Ghate
4:45 – 5:30 p.m. Discussion
4:00 – 5:30 p.m. Oakley: CAPI-Warm Clouds
4:00 – 4:15 p.m. Simulations of Aerosol, Cloud, and Precipitation Effects in Comparison with ARM Data – C. Zhou
4:15 – 4:30 p.m. Factorization of aerosol indirect effects – S. Ghan
4:30 – 4:45 p.m. MBL cloud properties and surface CCN properties from Azores-AMF observations – X. Dong
4:45 – 5:00 p.m. Causes and consequences of bimodal CCN spectra – J. Hudson
5:00 – 5:30 p.m. Discussion on Data products for CAPI – lead by L. Riihimaki
4:00 – 5:30 p.m. Salon FGH: Radar session: “Breaking new ground with Doppler spectra: Microphysics and dynamics, models and observations” (Ed Luke, Ann Fridlind)
Talks (8 minutes each):

  1. How to derive quantitative properties of microphysical modes from Radar Doppler Spectra-A case study on riming – S. Kneifel
  2. Dual-Pol spectra-new opportunities – V. Chandrasekar
  3. Using Differential Doppler Velocity in UAZR and KAZR spectra to estimate vertical air motion and DSD parameters – C. Williams
  4. Constraining ice sticking efficiency within a single column bin microphysics model using S-band profiler Doppler spectra – M. van Lier-Walqui
  5. Data products, tools, and the March 11-12, 2013 NSA mixed-phase case study period – E. Luke

Discussion to identify currently unfulfilled needs, challenges, and possible model/observation comparison activity
5:30 – 7:00 p.m. Dinner Break
7:00 – 8:30 p.m. Salon FGH: ARM Reorganization Session

Wednesday, November 19

8:30 – 10:00 a.m. White Oak A: ALWG – Secondary Organic Aerosol (Shilling, Wang)

  1. Viscosity/Phase – Martin, Zelenyuk
  2. Growth Mechanisms – Madronish, Shilling
  3. Sulfate as a Trigger or Regulator for SOA Production and Properties – Thornton, Srivastava
  4. Cross-cutting for Model Intercomparisons and Lab Chamber/Standards – Zaveri
  5. Discussion
8:30 – 10:00 a.m. Salon FG: Ice Processes – CLWG/CAPI Joint Ice Session
Framing Presentations (20 minutes each, including questions)

  1. Overview of relevant processes in GCMs – Xiaohong Liu
  2. Results from analytical/toy model of ice growth – M. Ovchinnikov
  3. How ice crystal habits affect cloud properties – A. Solomon
8:30 – 10:00 a.m. Salon H: MAGIC breakout session (chaired by Lewis)
10:00 – 10:30 a.m. Break
10:30 – 12:00 p.m. White Oak A: ALWG – Mixing State (Riemer, McGraw)
10:30 – 12:00 p.m. Salon FG: Ice Processes – CLWG/CAPI Joint Ice Session (continued)

  • Brief summaries from group leaders on individual group directions/priorities
  • Discussion: Focus on potential joint activities, leveraging activities, communication, joint priorities, etc.
12:00 – 1:30 p.m. Lunch Break
1:30 – 3:30 p.m. White Oak A: ALWG Session 1
1:30 – 2:30 p.m. Absorbing Aerosol: Discussion of Group Activities – McComiskey
2:30 – 3:00 p.m. Mixing State: Morphological Mixing State – Fast, Zaveri, Zelenyuk, Moffet, Gilles, Mazzolini, Sedlacek, Laskin, Knopf
1:30 – 3:30 p.m. White Oak B: ALWG Session 2
1:30 – 2:30 p.m. SOA: Cross-Cutting Activities for Model Intercomparisons and Lab/Chamber Studies – Zaveri
1:30 – 3:30 p.m. Oakley: CAPI – ICE NUCLEATION
1:30 – 1:45 p.m. Ice nucleating particles at SGP and in the U.S. High Plains – P. DeMott
1:45 – 2:00 p.m. Laboratory investigations of mechanisms for contact freezing – R. Shaw
2:00 – 2:15 p.m. Ice number concentration retrieval in stratiform clouds and related results – Z. Wang
2:15 – 2:30 p.m. Satellite remote sensing of Ni/IWC; a proxy for ice nucleation rates in cirrus clouds – D. Mitchell
3:00 – 3:15 p.m. Ice generation in convective clouds as learned from two recent field projects – J Yang
3:15 – 3:30 p.m. Impacts of uncertainty in ice nucleation parameterizations and dust on modeling deep convective clouds and precipitation – J. Fan
1:30 – 3:30 p.m. Salon H: CLWG-ICEPRO/QUICR: Ice properties and related uncertainties (McFarquhar, Mitchell, Fridlind)
QUICR overview (Shaocheng Xie)
Status of ICEPRO deliverables (Max 5 slides each)

  • D1: Development of single-particle databases from in-situ data (McFarquhar)
  • D2: Characterization of ice particle properties on environmental conditions (McFarquhar/Mitchell)
  • D3: Radiative closure studies from ISDAC (Lubin)
  • D4: Radiative closure studies from SGP (Mlawer)
  • D5/D6: Improved retrievals of ice properties and habits (Dong)
  • D7: Upgrade CAM5 microphysics to make self-consistent (Mitchel/Morrison)
  • D8: High-resolution simulations from MC3E (Fridlind)
  • D9: Modeling impoact of new ice property parameterizations (Harrington)
  • D10: Framework for converting ice particle uncertaintiesto model output (Fridlind/Mitchell/McFarquhar)
  • D11: Linking optical properties and microphysics (Fridlind)
  • D12: Gaps in microphysics databases (Fridlind/Mitchell/McFarquhar)
1:30 – 3:30 p.m. Salon FG: CLWG-PHASE: Discussion of ongoing case study activity, documentation of this activity from both model and observational perspectives, identify papers, consider future directions that build from this activity and take cross-over activities (from morning discussion) into account (de Boer, Harrington)
3:30 – 4:00 p.m. Break
4:00 – 5:30 p.m. White Oak A: ALWG Session 1
4:00 – 4:30 p.m. Mixing State: Modeling – Regional and Global Scale – Fast et al.
4:30 – 5:00 p.m. Mixing State: Mixing State and Remote Sensing – Moffet, Knopf, Gilles, Laskin, Flynn, Ferrare
5:00 – 5:30 p.m. Mixing State: CARES and TCAP Modeling/Data Comparisons – Fast, Zaveri, Zellenyuk, Moffet, Gilles
4:00 – 5:00 p.m. White Oak B ALWG Session 2
SOA: Sulfate as a Trigger or Regulator for SOA Production and Properties – Thornton, Srivastava
4:00 – 5:30 p.m. Oakley: CAPI – Ice Nucleation
4:00 – 4:15 p.m. LES simulations using stochastic immersion freezing parameters constrained with CFDC data from M-PACE and ISDAC – A. Fridlind
4:15 – 4:30 p.m. Impact of transition from singular approach to stochastic approach of heterogeneous ice nucleation on mixed-phase clouds in CAM5 – X. Liu
4:30 – 5:00 p.m. Science discussion (e.g., IN instrument intercomparison, SPIN, filter sampling, IN closure, IOP on ice formations, etc.)
5:00 – 5:30 p.m. “Ice Nucleation” white paper discussion
4:00 – 5:30 p.m. Salon H: CLWG-ICEPRO: General discussion on upgrading models and parameterizations, ICEPRO FG whitepaper discussion
4:00 – 5:30 p.m. Salon FG: CLWG-MJO (Long, Hagos)
4:00 – 4:05 p.m. Brief introductory remarks on MJO related activities
4:05 – 4:20 p.m. Sub-grid and large-scale effects of convection on moisture during DYNAMO in radiosonde observations and a cloud-permitting model – M. Janiga
4:20 – 4:35 p.m. High and very high resolution simulations of the MJO in a Global Circulation Model – R. Pilon
4:35 – 4:50 p.m. Precipitation structures during DYNAMO MJO event: Comparisons among cloud resolving model and radar observations – X. Li
4:50 – 5:05 p.m. MJO moist processes in observations, cloud permitting model and cumulus parameterizations – S Hagos
5:05 – 5:20 p.m. The user of CRMs in exchanging size for rain in a tropical latent heating retrieval – C. Schumacher
5:20 – 6:00 p.m. Discussion
5:30 – 7:00 p.m. Dinner Break
7:00 – 8:30 p.m. White Oak A: Radar Session: “Introduction to scanning radar forward simulations using CRM output from the aerosol-deep convection interactions study (MC3E)”
7:00 – 7:05 p.m. Meeting objectives/logistics – P. Kollias
7:05 – 7:20 p.m. Scanning radar simulator: Instrument Model – P. Kollias
7:20 – 7:50 p.m.Scanning radar simulator: Forward Model – A.r Ryzhkov
7:50 – 8:00 p.m. Discussion on next steps – Kollias and Ryzhkov
8:00 – 8:20 p.m. A profiling ARM radar simulator for GCMs – Xie and Zhang
8:20 – 8:30 p.m. Discussion and next steps – Kollias and Xie
7:00 – 8:30 p.m. Middlebrook: AMIE/DYNAMO observation-modeling integration (C. Zhang) – by invitation

Thursday, November 20

8:30 – 10:00 a.m. Salon FG: Deep Convection: CLWG/CAPI Joint session (Schumacher, Varble, Li, Morrison)
Framing Presentaions (20 min each)

  1. Microphsyics/MC3E, observations – J. Fan
  2. High level overview of aerosol-deep convective-microphysics interactions from a modeling perspective – Z. Lebo
  3. Anvil Clouds of Mesoscale Convective Systems – R. Houze
  4. Impact of aerosol on anvil and cloud radiative forcing for DCC systems – Z. Li
  5. Vertical velocity retrievals – S. Collis
10:00 – 10:30 a.m. Break
10:30 – 12:00 p.m. Salon FG: Deep Convective – CLWG/CAPI Joint Session (continued)

  • Brief summaries from group leaders on individual group directions/priorities
  • Discussions: Focus on potential joint activities, leveraging activities, communication, joint priorities, etc.
12:00 – 1:30 p.m. Lunch Break
1:30 – 3:30 p.m. Salon H: CAPI – Deep Convection
1:30 – 1:40 p.m. In-situ and satellite closure observations of CCN and cloud microstructure of the Manus plume and background in GO AMAZON – D. Rosenfeld
1:40 – 1:55 p.m. Aerosol and updraft properties in aircraft and ground-based observations during four days of MC3E: CN, CCN, H-TDMA, UHSAS, C-SAPR, NEXRAD, LMA, and tri-Doppler wind retrievals – A. Fridlind/M. van Lier Walqui
1:55 – 2:05 p.m. Aerosol impacts on MC3E anvils, cold pools, and precipitation characteristics – S. van den Heever
2:05 – 2:15 p.m. Aerosol effects on cloud field properties and precipitation of tropical convective clouds – Seoun-Soo Lee
2:15 – 2:25 p.m. Untangling microphysical impacts on deep convection applying a novel modeling methodology – W. Grabowski
2:25 – 2:35 p.m. Inferred differences in ice crystal nucleation rates between continental and maritime deep convective clouds – D. Mitchell
2:35 – 2:45 p.m. The spring 2014 SGP Ice Nuclei Characterization Experiment – S. van den Heever (for P. DeMott)
2:45 – 3:00 p.m. Contributed 1-slide overviews plus slides to frame discussion
3:00 – 3:30 p.m. Discussion (MC3E Intercomparison, focus group, and general)
1:30 – 3:30 p.m. Salon FG: CLWG-MCO / Deep Convection / Cold Pools (Varble, Schumacher, Rowe, Feng)
1:30 – 2:00 p.m. Observational retrievals in deep convection
2:00 – 2:30 p.m. MCO Trello page, Discussion on group objectives for MCO
2:30 – 3:30 p.m. Cold Pools