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

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

  15. Global Modeling of Absorption due to Primary Organic Aerosol - Feng
  16. 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