18th Symposium on Boundary Layers and Turbulence

Program Chair: Gunilla Svensson , Stockholm University

- Indicates paper has been withdrawn from meeting
- Indicates paper is an Award Winner

Monday, 9 June 2008

6:00 AM-11:55 PM: Monday, 9 June 2008


MON. 9 JUNE

9:00 AM-10:00 AM: Monday, 9 June 2008


Session 1
WELCOME & EKMAN LECTURE
Location: Aula Magna (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Gunilla Svensson, Stockholm University
9:00 AM
Welcoming Remarks by Stockholm University Vice-Chancellor, Kåre Bremer

9:15 AM
Welcoming Remarks by Program Chairperson, Gunilla Svensson

9:45 AM
Discussion

10:00 AM-10:30 AM: Monday, 9 June 2008


COFFEE BREAK

10:30 AM-12:00 PM: Monday, 9 June 2008


Session 2
BOUNDARY LAYER PROCESSES IN GLOBAL AND REGIONAL CLIMATE OR WEATHER PREDICTION MODELS—I
Location: Aula Magna (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Gunilla Svensson, Stockholm University
10:30 AM
2.1
Modeling atmospheric boundary layers for climate studies
Albert A.M. Holtslag, Wageningen University, Wageningen, Netherlands; and G. Svensson, P. J. Rasch, and W. Large

10:45 AM
2.2
Assessment of numerical weather forecasts against near-surface observations over an annual cycle
John M. Edwards, Met Office, Exeter, United Kingdom; and J. McGregor, M. R. Bush, and F. J. Bornemann
11:00 AM
2.3
Simulating atmosphere flow for wind energy applications with WRF-LES
Julie K. Lundquist, University of Colorado at Boulder, Boulder, CO; and J. D. Mirocha, F. K. Chow, B. Kosovic, and K. A. Lundquist

11:15 AM
2.4
Scaling analysis of the turbulent kinetic energy at the entrainment zone in sheared convective boundary layers
David Pino, Technical University of Catalonia, Castelldefels, Spain; and J. Vilà-Guerau de Arellano
11:30 AM
2.5
Quantifying the effects of mesoscale motion
Thorsten Mauritsen, Stockholm University, Stockholm, Sweden

11:45 AM
2.6
New entrainment rate parameterization for a unified PBL scheme
Cara-Lyn Lappen, Colorado State University, Fort Collins, CO; and D. A. Randall

12:00 PM-1:30 PM: Monday, 9 June 2008


LUNCH BREAK

1:30 PM-3:00 PM: Monday, 9 June 2008


Session 3
BOUNDARY LAYER PROCESSES IN GLOBAL AND REGIONAL CLIMATE OR WEATHER PREDICTION MODELS—II
Location: Aula Magna (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Branko Kosovic, LLNL
1:30 PM
3.1
Resolvability of small-scale non-turbulent motions in the boundary layer by numerical models
Danijel Belusic, University of Zagreb, Zagreb, Croatia; and L. Mahrt and B. Grisogono

2:00 PM
3.3
Boundary layer evolution under compensatory mesoscale circulations
Millan M. Millan, Fundacion CEAM, Paterna, Valencia, Spain; and E. Mantilla and R. Salvador

2:15 PM
3.4
Synoptic controls on boundary layer structure
Victoria A. Sinclair, University of Helsinki, Helsinki, Finland; and S. E. Belcher and S. L. Gray

2:30 PM
3.5
The role of boundary layer processes in mid-latitude cyclones
Stephen E. Belcher, University of Reading, Reading, Berks., United Kingdom; and I. Boutle, R. S. Plant, and R. J. Beare

2:45 PM
3.6
Impact of a swell-dependent roughness parameter in a regional climate model
Björn Carlsson, Uppsala University, Uppsala, Sweden; and A. Rutgersson and A. S. Smedman

3:00 PM-3:30 PM: Monday, 9 June 2008


COFFEE BREAK

3:30 PM-5:00 PM: Monday, 9 June 2008


Session 4
STABLE BOUNDARY LAYERS—I
Location: Aula Magna (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Cheryl L. Klipp, U.S. Army Research Laboratory
3:30 PM
4.1
Mesoscale motions and their influence on turbulence in stable conditions
Larry Mahrt, NorthWest Research Associates, Inc., Corvallis, OR

3:45 PM
4.2
Modeling turbulent fluxes in heterogeneous thermally stratified boundary layers
Fernando Porté-Agel, École Polytechnique Fédérale de Lausanne; and University of Minnesota, Lausanne, Vaud, Switzerland; and L. Chamorro Sr., R. Stoll, and J. Tucker

4:00 PM
4.3
Observations of turbulence in the residual layer
Michael Tjernström, University of Stockholm, Stockholm, Sweden; and B. B. Balsley, G. Svensson, and C. J. Nappo

4:15 PM
4.4
Small-scale atmospheric turbulence in very stable conditions
Andrey A. Grachev, CIRES/Univ. of Colorado, Boulder, CO; and E. L. Andreas, C. W. Fairall, P. S. Guest, and P. O. G. Persson

4:30 PM
4.5
Low-level-jet scaling of the stable boundary layer over the United States Great Plains
Robert M. Banta, NOAA/ESRL, Boulder, CO; and Y. L. Pichugina, N. D. Kelley, and W. A. Brewer
4:45 PM
4.6
Similarity theory and parameterization of the stably stratified atmospheric boundary layers
Sergej Zilitinkevich, University of Helsinki, Helsinki, Finland; and I. Esau

4:55 PM-7:00 PM: Monday, 9 June 2008


ICEBREAKER RECEPTION AND FORMAL POSTER VIEWING

5:00 PM-7:00 PM: Monday, 9 June 2008


Poster Session 1
BOUNDARY LAYER PROCESSES IN GLOBAL AND REGIONAL CLIMATE OR WEATHER PREDICTION MODELS
Host: 18th Symposium on Boundary Layers and Turbulence
P1.1
The Quality of Horizontal Advective Tendencies in Atmospheric Models
Fred C. Bosveld, KNMI, De Bilt, Netherlands; and E. Van Meijgaard, C. De Bruijn, and G. J. Steeneveld

Handout (1.3 MB)

P1.2
Using a Network of Scintillometers and Ceilometers for Validation of the WRF-mesoscale Model
Gert-Jan Steeneveld, Wageningen University, Wageningen, Netherlands; and O. K. Hartogensis, A. F. Moene, H. K. Baltink, and A. A. M. Holtslag

Handout (930.3 kB)

P1.3
P1.4
Analytical-Numerical Solutions for the One Dimensional PBL
Janis Rimshans, University of Latvia, Riga, Latvia; and I. Esau, S. Zilitinkevich, and S. Guseynov

Handout (153.5 kB)

P1.5
Improving mixing length-scale for the stable boundary layer in mesoscale models
Branko Grisogono, University of Zagreb, Zagreb, Croatia; and D. Belusic

P1.6
Assessment of the Canadian urban modeling system using Joint Urban 2003 observations over Oklahoma City
Jocelyn Mailhot, EC, Dorval, QC, Canada; and A. Lemonsu and S. Bélair

P1.7
Improving Mellor-Yamada-Janjic boundary layer parameterization, case of marine atmospheric boundary layer
Kay Suselj, University of Oldenburg, Oldenburg, Germany; and A. Sood

P1.8
The transition from stratus topped to trade-wind cumulus topped marine boundary layer in global climate models
Johannes Karlsson, JPL, Pasadena, CA; and G. Svensson, J. Teixeira, and S. S. Cardoso

P1.9
The diurnal cycle of the near surface temperature, wind and surface exchange in the NCAR CCSM
Gunilla Svensson, Stockholm University, Stockholm, Sweden; and A. A. M. Holtslag, P. J. Rasch, and W. Large

P1.10 moved. New Paper Number P5.4

P1.11
Urbanized MM5 simulations for urban heat island, regional ozone, and urban-scale emergency-response applications
Robert D. Bornstein, San Jose State University, San Jose, CA; and E. Weinroth, R. Balmori, and H. Taha


Poster Session 2
OBSERVATIONAL METHODS AND REMOTE SENSING
Host: 18th Symposium on Boundary Layers and Turbulence
P2.2
Comparison of vertical boundary-layer profiles from AMDAR to a wind profiler
C. Drüe, University of Hannover, Hannover, Germany; and A. Hoff and T. Hauf

P2.4
Turbulence effects on wind turbines: A wind-tunnel study
Leonardo Chamorro, University of Minnesota, Minneapolis, MN; and H. Lu and F. Porté-Agel

P2.5
Influence of turbulent mixing and air circulation in the lower atmosphere on fetch areas of selected WMO Global Atmosphere Watch baseline air pollution stations
Wlodek Zahorowski, Australian Nuclear Science and Technology Organisation, Menai, NSW, Australia; and S. Chambers, C. H. Kang, J. Crawford, S. Werczynski, and A. G. Williams

Handout (367.1 kB)

P2.6
ModObs: “Atmospheric modelling for wind energy, climate and environment applications: exploring added value from new observation technique”. Work in progress within an European FP6 Marie Curie Research Training Network
Anna Maria Sempreviva, Italian National Council of Research / Institute of Atmospheric Sciences and Climate, Lamezia Terme, Italy; and L. L. Soerensen Sr., H. E. Joergensen Sr., A. Sood, B. Tammelin Sr., T. Vimha, T. Neumann, F. Chêruy Sr., G. Liberti Sr., A. Lanotte Sr., U. Rizza Sr., M. Miglietta Sr., A. Rutgersson, A. S. Smedman Sr., I. Esau, L. E. Jensen Sr., L. C. Christensen Sr., B. Furevik Sr., O. Saetra Sr., M. Khalil, R. Wagner, K. Suselj, B. Canadillas, L. Claveri, A. Catarino, M. Cassol Jr., L. Velea Jr., A. Semedo, and T. Hansson

P2.7
The spectral dynamics analysis of the transitions periods in the convective boundary Layer
A. Goulart, Universidade Federal do Pampa, Alegrete, Brazil; and M. T. Vilhena, P. M. M. Soares, and D. M. Moreira

P2.8
Spatial features of bora related turbulence
ŽEljko Vecenaj, University of Zagreb, Zagreb, Croatia; and D. Belusic, V. Grubisic, and B. Grisogono

P2.9
Atmospheric turbulence characteristics in central London
Curtis R. Wood, University of Reading, Reading, United Kingdom; and J. Barlow, S. E. Belcher, A. Dobre, A. Tomlin, A. Balogun, J. Tate, A. Robins, S. Arnold, D. Martin, D. Shallcross, R. Britter, M. Neophytou, R. Colville, H. Apsimon, and H. Wang

Tuesday, 10 June 2008

6:00 AM-11:55 PM: Tuesday, 10 June 2008


TUE. 10 JUNE

9:00 AM-10:00 AM: Tuesday, 10 June 2008


Session 5A
BOUNDARY LAYER PROCESSES IN GLOBAL AND REGIONAL CLIMATE OR WEATHER PREDICTION MODELS—III
Location: Aula Magna Vänster (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Jordi Vila, Wageningen University
9:00 AM
5A.1
Sensitivity study of simulated wind profiles to model resolution, land cover and climate forcing data
Janna Lindenberg, GKSS Research Center, Geesthacht, Germany; and H. T. Mengelkamp and W. Yu
9:15 AM
5A.2
Study of the effect of the QNSE-based surface layer parameterization on the warm bias in simulations of stably stratified boundary layers
Boris Galperin, University of South Florida, St. Petersburg, FL; and S. Sukoriansky and E. Atlaskin

9:30 AM
5A.3
Evaluating the RAMS to represent the Stable Boundary Layer in the South America Pampa
Osvaldo Moraes, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil; and R. D. C. M. Alves, O. C. Acevedo, H. Zimermann Sr., and C. Teichrieb

9:45 AM
5A.4
Effect of climate change on regional surface layer winds
Jeffrey M. Freedman, AWS Truewind LLC, Albany, NY; and K. T. Waight, M. Brower, and P. Duffy


Session 5B
OBSERVATIONAL METHODS—I
Location: Aula Magna Höger (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Harm J. J. Jonker, Delft University of Technology
9:00 AM
5B.1
New developments in field experiments in ASL: Kolmogorov 4/5 law and non-locality
Michael Kholmyansky, Tel-Aviv University, Tel-Aviv, Israel; and V. Sabelnikov and A. Tsinober
9:15 AM
5B.2
9:30 AM
5B.3
Scaling properties of temperature spectra in the surface friction layer
Johannes Laubach, Manaaki Whenua - Landcare Research, Lincoln, New Zealand; and K. G. McNaughton
9:45 AM
5B.4
Ten years of operational measurements at the boundary layer field site of the Meteorological Observatory Lindenberg / Richard – Aßmann Observatory (DWD)
Frank Beyrich, German Meteorological Service, Lindenberg, Germany; and C. Heret, S. H. Richter, U. Rummel, G. Vogel, and U. Weisensee

10:00 AM-10:30 AM: Tuesday, 10 June 2008


COFFEE BREAK
Location: Aula Magna Vänster

10:30 AM-12:15 PM: Tuesday, 10 June 2008


Session 6A
BOUNDARY LAYER PROCESSES IN GLOBAL AND REGIONAL CLIMATE OR WEATHER PREDICTION MODELS—IV
Location: Aula Magna Vänster (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Jordi Vila, Wageningen University
11:00 AM
6A.3
Stably stratified boundary layer simulations with a non-local closure model
N. M. Colonna, Università del Piemonte Orientale, Alessandria, Italy; and E. Ferrero and U. Rizza
11:15 AM
6A.4
Conceptual analysis of the non-stationarity of wind fields in the CBL
Joel Schröter, Wageningen University, Wageningen, Netherlands; and A. F. Moene and A. A. M. Holtslag

11:30 AM
6A.5
A boundary layer scheme for mesoscale models using current science
Wayne M. Angevine, CIRES, University of Colorado, and NOAA/ESRL, Boulder, CO; and T. Mauritsen
11:45 AM
6A.6
The Scaling Behaviour of a Turbulent Kinetic Energy Closure Model for Stably Stratified Conditions
P. Baas, KNMI, De Bilt, Netherlands; and S. R. De Roode and G. Lenderink

12:00 PM
6A.7
Accounting for the effect sub-grid scale emission variability on upper-air concentration
Stefano Galmarini, Joint Research Centre of the European Commission, Ispra, Italy; and J. F. Vinuesa and A. Martilli


Session 6B
OBSERVATIONAL METHODS—II
Location: Aula Magna Höger (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Harm J. J. Jonker, Delft University of Technology
10:30 AM
6B.1
Taking the pulse of the monsoon flux over West Africa prior to the monsoon onset
Fleur Couvreux, Meteo-France, Toulouse, France; and F. Guichard, O. Bock, J. P. Lafore, J. L. Redelsperger, M. Lothon, and F. Said

10:45 AM
6B.2
11:00 AM
6B.3
SUMO: A Small Unmanned Meteorological Observer for atmospheric boundary layer research
Joachim Reuder, Geophysical Institute, University of Bergen, Bergen, Norway; and P. Brisset, M. Müller, M. Jonassen, and S. Mayer
11:15 AM
6B.4
First wind measurements with the Meteorological UAV 'M2AV Carolo'
Aline C. Van den Kroonenberg, Technical University, Braunschweig, Germany; and T. Spieß and J. Bange
11:30 AM
6B.5
Temporal variability of energy and mass fluxes at a residential site in a tropical city
Matthias Roth, National University of Singapore, Singapore, Singapore; and C. Jansson

11:45 AM
6B.6
Further development of the Tethersonde instrument
M. J. Hobby, National Centre for Atmospheric Science, Leeds, West Yorkshire, United Kingdom; and S. D. Mobbs and A. M. Blyth
12:00 PM
6B.7
Experimental validation of the Webb correction for CO2 flux with an open-path gas analyzer
Osamu Tsukamoto, Okayama University, Okayama, Japan; and F. Kondo

12:15 PM-1:30 PM: Tuesday, 10 June 2008


LUNCH BREAK
Location: Aula Magna Vänster

1:30 PM-3:00 PM: Tuesday, 10 June 2008


Session 7A
BOUNDARY LAYER PROCESSES IN GLOBAL AND REGIONAL CLIMATE OR WEATHER PREDICTION MODELS—V
Location: Aula Magna Vänster (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: John M. Edwards, Met Office
1:30 PM
7A.1
Do we need to account for lakes in climate and NWP modelling?
Patrick Samuelsson, Swedish Meteorological and Hydrological Institute, Norrköping, Sweden; and E. Kuorzeneva and D. Mironov
1:45 PM
7A.2
Idealized studies with the new urban scheme of the Met Office Unified Model
Aurore Porson, Met Office, Exeter, UK, Exeter, United Kingdom; and S. I. Bohnenstengel, S. Belcher, P. Clark, and I. N. Harman
2:00 PM
7A.3
Sensitivity to morphology in urban boundary layer modeling at the mesoscale
David D. Flagg, York University, Toronto, ON, Canada; and P. A. Taylor
2:30 PM
7A.5
Tests of RANS-based PBL schemes against LES, RUC, and tall tower data
Robert Conzemius, Windlogics, Inc., Grand Rapids, MN; and D. Moon
2:45 PM
7A.6
An improved turbulence model for atmospheric boundary Layer over earth's surface with large-scale roughness and local thermal inhomogeneity
A.F. Kurbatskiy, Khristianovich Institute & Russian Academy of Sciences, Novosibirsk, Russia; and L. I. Kurbatskaya


Session 7B
PRECISION REMOTE SENSING OF THE PBL—I
Location: Aula Magna Höger (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Robert M. Banta, NOAA/ERL/ETL
1:30 PM
7B.1
Measurements of turbulence structure in the daytime convective boundary layer from a ground-based Doppler lidar
Marie Lothon, Université de Toulouse, Campistrous, France; and D. H. Lenschow and S. D. Mayor
1:45 PM
7B.2
Measurements of turbulent kinetic energy dissipation rate derived from Doppler lidar
Ewan J. O'Connor, University of Reading, Reading, Berks., United Kingdom; and R. J. Hogan, A. J. Illingworth, and C. D. Westbrook

2:15 PM
7B.4
Turbulence, shear and stability influences on lower boundary-layer wind profiles
Kathleen E. Moore, Integrated Environmental Data, LLC, Berne, NY; and B. H. Bailey
2:45 PM
7B.6
Nocturnal boundary layer height estimate from Doppler lidar measurements
Yelena L. Pichugina, CIRES/Univ. of Colorado and NOAA/ESRL, Boulder, CO; and R. M. Banta

3:00 PM-3:30 PM: Tuesday, 10 June 2008


COFFEE BREAK

3:30 PM-4:45 PM: Tuesday, 10 June 2008


Session 8B
PRECISION REMOTE SENSING OF THE PBL—II
Location: Aula Magna Höger (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Robert M. Banta, NOAA/ERL/ETL
3:30 PM
8B.1
Visualisation of turbulent exchange using a thermal camera
Roland Vogt, University of Basel, Basel, Switzerland

3:45 PM
8B.2
First Results of an Optical and Millimeter Wave Scintillometer system at the Chilbolton test range
Oscar K. Hartogensis, Wageningen University, Wageningen, Netherlands; and B. Van Kesteren, J. G. Evans, J. Bradford, A. F. Moene, and A. A. M. Holtslag

4:00 PM
8B.3
Understanding the scintillometer signal: spatial variability of structure parameters using wavelet analysis
Arnold F. Moene, Wageningen University, Wageningen, Netherlands; and B. Gioli

4:15 PM
8B.4
Structure function calculations of convective turbulence during COPS
Fay Davies, Univ. of Salford, Salford, United Kingdom; and C. G. Collier and G. N. Pearson
4:30 PM
8B.5
Boundary layer structure & aerosol properties: lidar retrievals and in-situ measurements
Ian M. Brooks, University of Leeds, Leeds, West Yorkshire, United Kingdom; and B. J. Brooks, A. J. Illingworth, C. L. Wrench, J. Agnew, E. O'Conner, S. J. Norris, and C. E. Birch

3:30 PM-5:15 PM: Tuesday, 10 June 2008


Session 8A
GABLS
Location: Aula Magna Vänster (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Albert A.M. Holtslag, Wageningen University
3:30 PM
8A.1
The second GABLS experiment—what did we learn?
Gunilla Svensson, Stockholm University, Stockholm, Sweden; and A. A. M. Holtslag

3:45 PM
8A.2
Large-eddy simulations of the diurnal cycle in the atmospheric boundary layer and the impact of land surface conditions and geostrophic forcings
Vijayant Kumar, Johns Hopkins University, Baltimore, MD; and C. Meneveau, M. B. Parlange, G. Svensson, and A. A. M. Holtslag

4:00 PM
8A.3
From the GABLS's result to the ARPEGE NWP system: an easy ride?
Eric Bazile, Météo-France, Toulouse, France; and Y. Bouteloup, F. Bouyssel, and P. Marquet
4:15 PM
8A.4
Towards a third Intercomparison Case for GABLS using Cabauw Data
P. Baas, Delft University of Technology, Delft, Netherlands; and F. C. Bosveld, G. J. Steeneveld, and A. A. M. Holtslag
4:30 PM
8A.5
Intercomparison of Single-column Models for GABLS3 preliminary Results
Fred C. Bosveld, KNMI, De Bilt, Netherlands; and C. De Bruijn and A. A. M. Holtslag
5:00 PM
8A.7
Large-Eddy Simulation Intercomparison Case Setup for GABLS3
Sukanta Basu, Texas Tech University, Lubbock, TX; and G. J. Steeneveld, A. A. M. Holtslag, and F. C. Bosveld

6:00 PM-8:00 PM: Tuesday, 10 June 2008


INTERNATIONAL RECEPTION AT STOCKHOLM CITY HALL

Wednesday, 11 June 2008

6:00 AM-11:55 PM: Wednesday, 11 June 2008


WED. 11 JUNE

9:00 AM-10:00 AM: Wednesday, 11 June 2008


Session 9A
LAND-SURFACE-PBL COUPLING—I
Location: Aula Magna Vänster (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Wayne M. Angevine, CIRES, University of Colorado, and NOAA/ESRL
9:00 AM
9A.1
Analysis and classification of flows over gently sloping terrain within patchy vegetation
Sean Arms, University of Oklahoma, Norman, OK; and P. M. Klein and E. Fedorovich

9:15 AM
9A.2
Determination of temperature roughness length for built environment with high resolution wireless meteorological stations
Daniel Nadeau, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland; and E. Bou-Zeid, M. B. Parlange, G. Barrenetxea, and M. Vetterli
9:30 AM
9A.3
9:45 AM
9A.4
Characteristics of Canopy Turbulence during the Transition from Convective to Stable Stratification
E. van Gorsel, CSIRO, Canberra, ACT, Australia; and J. J. Finnigan, I. N. Harman, and R. Leuning

Session 9B
LARGE EDDY SIMULATIONS AND FUNDAMENTAL STUDIES—I
Location: Aula Magna Höger (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Fernando Porté-Agel, École Polytechnique Fédérale de Lausanne; and University of Minnesota
9:00 AM
9B.1
The diurnal evolution of 222-Rn and its progeny in the atmospheric boundary layer
Jean-François Vinuesa, Joint Research Centre of the European Commission, Ispra, Italy; and S. Basu and S. Galmarini

9:15 AM
9B.2
Diurnal boundary layer mixing patterns characterised by radon gradient observations at Cabauw
Wlodek Zahorowski, Australian Nuclear Science and Technology Organisation, Menai, NSW, Australia; and A. G. Williams, A. Vermeulen, S. Chambers, J. Crawford, and O. Sisoutham
9:30 AM
9B.3
A new surface boundary condition for LES over a rough-to-smooth transition: experimental and numerical tests
Leonardo Chamorro, University of Minnesota, Minneapolis, MN; and F. Porté-Agel
9:45 AM
9B.4
Mixing and venting in clear and cloudy boundary layers using airborne radon measurements
Alastair G. Williams, Australian Nuclear Science and Technology Organisation, Sydney, NSW, Australia; and W. Zahorowski, S. Chambers, J. Hacker, P. Schelander, A. Element, S. Werczynski, and A. Griffiths

10:00 AM-10:30 AM: Wednesday, 11 June 2008


COFFEE BREAK

10:30 AM-12:15 PM: Wednesday, 11 June 2008


Session 10A
LAND-SURFACE-PBL COUPLING—II
Location: Aula Magna Vänster (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Wayne M. Angevine, CIRES, University of Colorado, and NOAA/ESRL
10:30 AM
10A.1
Exchange processes in mountainous regions during the EGER 2007 micrometeorological experiment
Andrei Serafimovich, University of Bayreuth, Bayreuth, Germany; and L. Siebicke, K. Staudt, T. Foken, F. X. Meixner, E. Falge, and C. Zetzsch
10:45 AM
10A.2
Reasons for the breakdown of Monin-Obukhov similarity theory above rough surfaces
Jan H. Schween, University of Cologne, Cologne, NRW, Germany

11:00 AM
10A.3
11:15 AM
10A.4
11:30 AM
10A.5
Simple modification of two-equation models for non-neutral flow
Andrey Sogachev, Risø National Laboratory for Sustainable Energy, Roskilde, Denmark; and O. Panferov and T. Vesala
11:45 AM
10A.6
Spatial variability of vertical and horizontal turbulent fluxes above a boreal forest
Meelis Mölder, Lund University, Lund, Sweden; and C. Feigenwinter and A. Lindroth
12:00 PM
10A.7
Imposing land-surface fluxes at an immersed boundary for improved simulations of atmospheric flow over complex terrain
Katherine A. Lundquist, University of California, Berkeley, CA; and F. K. Chow, J. K. Lundquist, and J. D. Mirocha

10:30 AM-12:30 PM: Wednesday, 11 June 2008


Session 10B
LARGE EDDY SIMULATIONS AND FUNDAMENTAL STUDIES—II
Location: Aula Magna Höger (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Fernando Porté-Agel, École Polytechnique Fédérale de Lausanne; and University of Minnesota
10:30 AM
10B.1
Footprint Application to Long-term CO2 Flux Observations
Natascha Kljun, Swansea University, Swansea, United Kingdom; and L. Chasmer, A. G. Barr, T. A. Black, C. Hopkinson, J. H. McCaughey, M. W. Rotach, and H. P. Schmid
10:45 AM
10B.2
Boundary layer high order concentration statistics
Luca Mortarini, University of Piemonte Orientale, Alessandria, Italy; and E. Ferrero and P. Franzese
11:00 AM
10B.3
A new scaling term for use in roughness sublayers
Cheryl L. Klipp, U.S. Army Research Laboratory, Adelphi, MD
11:15 AM
10B.4
Processes involved in the diurnal cycle of the Planetary Boundary Layer in the frame of the West African Monsoon
Marie Lothon, Université de Toulouse, Campistrous, France; and G. Canut, F. Saïd, F. Lohou, B. Campistron, F. Couvreux, and F. Guichard
11:30 AM
10B.5
Modelling the dust-laden Martian boundary layer
Richard Davy, Nansen Environmental and Remote Sensing Center, Bergen, Hordaland, Norway; and P. A. Taylor, W. Weng, and P. Y. Li
11:45 AM
10B.6
Large Eddy Simulation of vertical vortices in highly convective Martian boundary layer
Babak Tavakoli Gheynani, Centre for Research in Earth and Space Science (CRESS), Toronto, ON, Canada; and P. A. Taylor
12:00 PM
10B.7
A posteriori subgrid-scale model tests based on the conditional means of subgrid-scale stress and its production rate
Qinglin Chen, Clemson University, Clemson, SC; and M. J. Otte, P. P. Sullivan, and C. Tong
12:15 PM
10B.8
Large-eddy simulation of dust devils in the atmospheric boundary layer
Theres Franke, University of Hannover, Hannover, Germany; and S. Raasch

12:15 PM-1:30 PM: Wednesday, 11 June 2008


LUNCH BREAK

1:30 PM-3:00 PM: Wednesday, 11 June 2008


Session 11A
LAND-SURFACE-PBL COUPLING—III
Location: Aula Magna Vänster (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Wayne M. Angevine, CIRES, University of Colorado, and NOAA/ESRL
1:45 PM
11A.2
Canopy dynamics and the surface energy balance
Ian N. Harman, CSIRO Marine and Atmospheric Research, Canberra, Australia; and J. J. Finnigan
2:00 PM
11A.3
Impact of different surface layer schemes on surface fluxes in the Noah land model used at NCEP
Michael Ek, NOAA/NWS/NCEP, Camp Springs, MD; and K. Mitchell, Y. Xia, H. Wei, X. Zeng, B. Livneh, and A. Slater

2:15 PM
11A.4
Onset of drainage currents in flows over forested hills
Stephen E. Belcher, University of Reading, Reading, Berks., United Kingdom; and J. J. Finnigan and I. N. Harman

2:30 PM
11A.5
Lagrangian particle modeling of dispersion in planetary boundary layers with and without a plant canopy
Jeffrey C. Weil, CIRES/Univ. of Colorado, Boulder, CO; and E. G. Patton and P. P. Sullivan

2:45 PM
11A.6
Dynamic significance of Hudson valley channeling
David R. Fitzjarrald, University at Albany / SUNY, Albany, NY; and M. A. Jimenez Jr., J. Cuxart, and J. M. Freedman


Session 11B
LARGE EDDY SIMULATIONS AND FUNDAMENTAL STUDIES—III
Location: Aula Magna Höger (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Cheryl L. Klipp, U.S. Army Research Laboratory
1:30 PM
11B.1
Impact of terrain heterogeneities on coherent structures properties in the surface layer: experimental and numerical approaches
Clément Fesquet, IPSL, Palaiseau, France; and S. Dupont, P. J. Drobinski, C. Barthlott, and T. Dubos

1:45 PM
11B.2
Enabling large eddy simulations with the Weather Research and Forecasting model via improved subfilter-scale turbulence models
Jeffrey D. Mirocha, LLNL, Livermore, CA; and F. K. Chow, J. K. Lundquist, B. Kosovic, and K. A. Lundquist

2:00 PM
11B.3
The need for caution when interpreting velocity field structures predicted by LES
Francis L. Ludwig, Stanford University, Stanford, CA; and F. K. Chow and R. L. Street
2:15 PM
11B.4
Simulation of the morning transition boundary layer
Robert John Beare, University of Exeter, Exeter, United Kingdom
2:45 PM
11B.6
Vorticity dynamics in the PBL using a vector-vorticity LES model
Chin-Hoh Moeng, NCAR, Boulder, CO; and A. Arakawa, J. H. Jung, R. Rotunno, and P. P. Sullivan

3:00 PM
11B.7
Laboratory Experiments on Entrainment—a Comparison of Two-Layer Systems with Linearly Stratified Systems
Harm J. J. Jonker, Delft University of Technology, Delft, Netherlands; and M. A. Jimenez Jr., P. Lijdsman, J. Lebouille, and D. Abrahams

3:15 PM-6:00 PM: Wednesday, 11 June 2008


FREE TIME TO VISIT SKANSEN (FREE ENTRY) PRIOR TO THE BANQUET OR VISIT THE VASA MUSEUM (SEPARATE ENTRY FEE)

6:00 PM-8:00 PM: Wednesday, 11 June 2008


SYMPOSIUM BANQUET AT SOLLIDEN RESTAURANT (LOCATED WITHIN SKANSEN)—TIME TBD

Thursday, 12 June 2008

6:00 AM-11:55 PM: Thursday, 12 June 2008


THU. 12 JUNE

9:00 AM-10:00 AM: Thursday, 12 June 2008


Session 12A
BOUNDARY LAYER FLOWS ALONG SLOPING SURFACES—I
Location: Aula Magna Vänster (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Evgeni Fedorovich, University of Oklahoma
9:00 AM
12A.1
Large Eddy Simulations of the Atmospheric Flow in Alpine Environments
Chad Higgins, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland; and M. B. Parlange, M. Lehning, and C. Meneveau

9:15 AM
12A.2
Large-eddy simulation of density currents over complex terrain
Branko Kosovic, LLNL, Livermore, CA; and J. D. Mirocha

9:30 AM
12A.3
Large eddy simulation of katabatic flow
Simon Axelsen, University of Utrecht, Utrecht, Netherlands; and H. Van Dop
9:45 AM
12A.4
Numerical Studies of Thermally Induced Slope Winds
Xiurong Sun, CRESS, York University, Toronto, ON, Canada; and W. Weng and P. Taylor

Session 12B
BOUNDARY LAYERS AT HIGH LATITUDES—I
Location: Aula Magna Höger (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Michael Tjernstrom, Stockholm University
9:00 AM
12B.1
Evaluation of GEM in the Stable Boundary Layer over the Arctic Ocean during SHEBA
Pierre-Luc Carpentier, University of Quebec, Montreal, QC, Canada; and C. G. Jones
9:15 AM
12B.2
Empirical turbulent Prandtl number parameterisation as a function of Richardson number
Philip S. Anderson, British Antarctic Survey, Cambridge, United Kingdom

9:30 AM
12B.3
9:45 AM
12B.4
Drifting and blowing snow field studies in the Canadian North
Mark Gordon, Center for Research in Earth and Space Science, Toronto, ON, Canada; and P. A. Taylor, S. Savelyev, J. Hanesiak, Q. Huang, and S. Biswas

10:00 AM-10:30 AM: Thursday, 12 June 2008


COFFEE BREAK

10:30 AM-12:15 PM: Thursday, 12 June 2008


Session 13A
BOUNDARY LAYER FLOWS ALONG SLOPING SURFACES—II
Location: Aula Magna Vänster (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Evgeni Fedorovich, University of Oklahoma
10:30 AM
13A.1
Investigation of observed and modelled nocturnal wind and temperature oscillations in an Alpine valley
Irene Schicker, University of Natural Resources and Life Sciences, Vienna, Austria; and P. Seibert and E. Mursch-Radlgruber
10:45 AM
13A.2
Slope and basin flows in the Ebro basin: conditioned climatology and mesoscale modelling
Maria Antonia Jimenez, Institut Mediterrani d'Estudis Avançats (IMEDEA), UIB-CSIC, Esporles, Balearic Islands, Spain; and D. Martinez, F. Molinos, T. Clapes, J. Cunillera, and J. Cuxart

11:00 AM
13A.3
Further Examination of the Possible Role of Orographically Induced Wave Drag in the Stable Boundary Layer during CASES99
Gert-Jan Steeneveld, Wageningen University, Wageningen, Netherlands; and C. J. Nappo and A. A. M. Holtslag
11:15 AM
13A.4
Variability of Surface Air Temperature over Gently-Sloped Terrain
Petra M. Klein, Univ. of Oklahoma, Norman, OK; and D. Bodine, S. Arms, and A. Shapiro

11:45 AM
13A.6
The role of canopy-boundary layer interactions in scalar transport over forests
Andrew N. Ross, University of Leeds, Leeds, West Yorkshire, United Kingdom

12:00 PM
13A.7
A wind tunnel study of stably stratified flow on a ridge covered with a tall plant canopy
John J. Finnigan, CSIRO, Canberra, ACT, Australia; and D. Hughes

Session 13B
BOUNDARY LAYERS AT HIGH LATITUDES—II
Location: Aula Magna Höger (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Peter A. Taylor, York University
10:30 AM
13B.1
10:45 AM
13B.2
Arctic boundar-layer inversions from SHEBA observations and ERA-40 reanalysis data
Michael Tjernström, University of Stockholm, Stockholm, Sweden; and R. G. Graversen

11:00 AM
13B.3
Cloud and inversion characteristics over the Arctic pack ice
J. Sedlar, Stockholm University, Stockholm, Sweden; and M. Tjernström

11:15 AM
13B.4
Downward sensible heat flux and decoupling over snow-covered surfaces
Timo Vihma, Finnish Meteorological Institute, Helsinki, Finland

11:30 AM
13B.5
Effect of surface heterogeneity on energy fluxes during the SHEBA winter
P. O. G. Persson, CIRES/Univ. of Colorado and NOAA/ESRL/PSD, Boulder, CO; and E. L. Andreas, C. W. Fairall, A. A. Grachev, P. S. Guest, and J. A. Maslanik
11:45 AM
13B.6
Effect of microphysical parameterization on the simulation of high-latitude surface energy budget and boundary-layer structure
P. O. G. Persson, CIRES/Univ. of Colorado and NOAA/ESRL/PSD, Boulder, CO; and A. B. Solomon, M. Shupe, H. Morrison, and J. W. Bao

12:00 PM
13B.7
Characteristics of near-surface atmospheric flow and turbulent heat fluxes under highly stable conditions over a snow-covered alpine glacier
Hendrik Huwald, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland; and M. B. Parlange, C. Higgins, E. Bou-Zeid, M. Calaf-Bracons, and C. Meneveau

12:15 PM
13B.8
Surface-layer properties on the eastern Antarctic plateau and its adjacent slopes
Mingyu Zhou, Polar Research Institute of China, Pudong, Shanghai, China; and S. Zhong, Z. Zhang, D. H. Lenschow, H. M. Hsu, W. Q. Yao, Z. Gao, S. Li, and B. Sun

12:30 PM-1:30 PM: Thursday, 12 June 2008


LUNCH BREAK

1:30 PM-3:00 PM: Thursday, 12 June 2008


Session 14A
BOUNDARY LAYER FLOWS ALONG SLOPING SURFACES—III
Location: Aula Magna Vänster (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Petra M. Klein, Univ. of Oklahoma
1:45 PM
14A.2
Basin temperature inversions and their relationship to ambient atmospheric conditions
Sharon Zhong, Michigan State University, East Lansing, MI; and W. Q. Yao, T. W. Horst, C. D. Whiteman, and S. P. Oncley

2:00 PM
14A.3
Coriolis effects in heterogeneous katabatic flows
Alan Shapiro, University of Oklahoma, Norman, OK; and E. Fedorovich

2:15 PM
14A.4
Scaling relationships for slope flows
Evgeni Fedorovich, University of Oklahoma, Norman, OK; and A. Shapiro

2:30 PM
14A.5
Two-dimensional katabatic flows along a planar slope
Bryan A. Burkholder, University of Oklahoma, Norman, OK; and A. Shapiro and E. Fedorovich

2:45 PM
14A.6
Case studies of katabatic wind in Coats Land, Antarctica
Hanneke Luijting, University of East Anglia, Norwich, United Kingdom; and I. A. Renfrew, P. S. Anderson, and J. C. King

Session 14B
BOUNDARY LAYER CLOUDS—I
Location: Aula Magna Höger (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: David A. R. Kristovich, ISWS, Prairie Research Institute, University of Illinois
1:30 PM
14B.1
Dynamics of Diurnal Variation of Stratus Clouds in Central Coast of California
Shouping Wang, NRL, Monterey, CA; and Y. Jin, Q. Wang, and Q. Jiang

1:45 PM
14B.2
Relative humidity as a proxy for cloud formation over heterogeneous land surfaces
Chiel C. Van Heerwaarden, Wageningen University, Wageningen, Netherlands; and J. Vila
2:15 PM
14B.4
Mixing in shallow cumulus clouds studied by Lagrangian particle tracking
Thijs Heus, Delft University of Technology, Delft, Netherlands; and G. Van Dijk, H. J. J. Jonker, and H. E. A. Van den Akker
2:30 PM
14B.5
Dispersion in Cloudy Boundary Layers
Remco A. Verzijlbergh, Delft University of Technology, Delft, Netherlands; and H. J. J. Jonker and T. Heus
2:45 PM
14B.6

3:00 PM-3:30 PM: Thursday, 12 June 2008


COFFEE BREAK

3:30 PM-5:00 PM: Thursday, 12 June 2008


Session 15A
BOUNDARY LAYER FLOWS ALONG SLOPING SURFACES—IV
Location: Aula Magna Vänster (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Petra M. Klein, Univ. of Oklahoma
3:30 PM
15A.1
Steering mechanisms of a persistent slope wind system on plot-scale vertical and horizontal transport of CO2 in and above an alpine forest
Christian Feigenwinter, Gembloux Agricultural University, Gembloux, Belgium; and C. Bernhofer, O. Kolle, A. Lindroth, L. Montagnani, and M. Aubinet
3:45 PM
15A.2
Case studies from a field campaign to measure canopy air flows over complex terrain
Rosey Grant, British Antarctic Survey, Cambridge, Cambs, United Kingdom; and A. N. Ross, I. M. Brooks, B. A. Gardiner, K. H. Jones, and S. D. Mobbs
4:00 PM
15A.3
A regional-scale downslope wind observed during the METCRAX Experiment in Northern Arizona
Lowell C. Savage III, Michigan State University, East Lansing, MI; and S. Zhong, W. Q. Yao, T. Horst, and W. O. Brown

4:15 PM
15A.4
Boundary Layer Effects on Atmospheric CO2 Concentrations at Mountaintop Locations
Stephan F.J. De Wekker, University of Virginia, Charlottesville, VA; and G. Song, A. Ameen, and B. B. Stephens


Session 15B
BOUNDARY LAYER CLOUDS—II
Location: Aula Magna Höger (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Gunilla Svensson, Stockholm University
3:45 PM
15B.2
Role of Land Surface Processes and Boundary Layer Clouds on
Sethu Raman, North Carolina State University, Raleigh, NC
4:00 PM
15B.3
Role of nocturnal turbulence and advection in the formation of shallow cumulus over land
J. Vilà-Guerau de Arellano, Wageningen University, Wageningen, Netherlands

4:30 PM-5:30 PM: Thursday, 12 June 2008


FORMAL POSTER VIEWING

4:30 PM-6:00 PM: Thursday, 12 June 2008


Poster Session 3
BOUNDARY LAYER CLOUDS
Location: Aula Magna
Host: 18th Symposium on Boundary Layers and Turbulence
P3.1
Analysis of the downward transport in RICO observations
Thijs Heus, Delft University of Technology, Delft, Netherlands; and F. C. J. F. Pols, H. J. J. Jonker, H. E. A. van den Akker, and D. H. Lenschow

Handout (297.7 kB)

P3.2
Single column simulations of COSMO for the GCSS RICO precipitating shallow cumulus case
Jürgen Helmert, DWD, Offenbach, Germany; and M. Raschendorfer and A. Seifert

Handout (325.5 kB)

P3.3
Using Doppler lidar and radar to evaluate the representation of drizzle in models
Ewan J. O'Connor, University of Reading, Reading, Berks., United Kingdom


Poster Session 4
BOUNDARY LAYERS AT HIGH LATITUDES
Location: Aula Magna
Host: 18th Symposium on Boundary Layers and Turbulence
P4.1
Long-term turbulent flux measurements over Arctic fjords in Svalbard
Tiina Kilpeläinen, Finnish Meteorological Institute, Helsinki, Finland; and A. Sjöblom

Handout (448.2 kB)

P4.2
The performance of the Met Office Unified Model over the central Arctic Ocean
Cathryn E. Birch, University of Leeds, Leeds, West Yorkshire, United Kingdom; and I. M. Brooks, M. Tjernström, and S. F. Milton

Handout (264.7 kB)

P4.3

Poster Session 5
LAND-SURFACE-PBL COUPLING
Location: Aula Magna
Host: 18th Symposium on Boundary Layers and Turbulence
P5.1
Generation of free convection in a valley due to changes of the local circulation system
Rafael Eigenmann, University of Bayreuth, Bayreuth, Germany; and S. Metzger, L. Siebicke, K. Staudt, A. Serafimovich, and T. Foken

Handout (622.1 kB)

P5.2
Higher-order statistics of the turbulent flow in a sparse Lodgepole Pine canopy
Andreas Christen, University of British Columbia, Vancouver, BC, Canada; and M. Novak

P5.3
Interscale energy transfer in convective boundary layers forced by mesoscale surface heat flux heterogeneities
David P. Tyndall, Pennsylvania State University, University Park, PA; and K. J. Davis

P5.4
Impact of the planetary boundary layer processes on the turbulent length scales and heat fluxes at surface
F. Lohou, Observatoire Midi-Pyrénées, Campistrous, France; and F. Said, M. Lothon, D. Ramier, and B. Cappeleare

Handout (1.1 MB)


Poster Session 6
LARGE EDDY SIMULATIONS
Location: Aula Magna
Host: 18th Symposium on Boundary Layers and Turbulence
P6.1
Atmospheric stability and secular equilibrium of the 222-Rn decaying family
Jean-François Vinuesa, Joint Research Centre of the European Commission, Ispra, Italy; and S. Galmarini and S. Basu

P6.2
Momentum transport in the convective boundary layer: LES diagnostics
Pedro M. M. Soares, University of Lisbon, Lisbon, Portugal; and A. Catarino and P. M. A. Miranda

P6.4
Simulations versus observations of a sheared convective boundary layer
Robert Conzemius, Windlogics, Inc., Grand Rapids, MN; and E. Fedorovich

Handout (407.1 kB)


Poster Session 7
MARINE BOUNDARY LAYERS
Location: Aula Magna
Host: 18th Symposium on Boundary Layers and Turbulence
P7.2
Differences between eddy correlation fluxes for discrete and continuous scalars: applications to sea-spray aerosol fluxes
Sarah J. Norris, University of Leeds, Leeds, West Yorkshire, United Kingdom; and I. M. Brooks, B. J. Brooks, and M. K. Hill

P7.3
Flux attenuation due to Sensor Displacement over Sea
Erik Nilsson, Uppsala University, Uppsala, Sweden; and A. Rutgersson and P. P. Sullivan

P7.4
Wind stress and stress curl from aircraft measurements and their connection to local coastal upwelling
Qing Wang, Naval Postgraduate School, Monterey, CA; and J. Kalogiros, S. R. Ramp, J. Paduan, G. Buzorius, and H. H. Jonsson

Handout (454.1 kB)

P7.5
Evidence of inertial oscillation in the stable marine Atmospheric Boundary Layer
Costas G. Helmis Sr., University of Athens, Athens, Attika, Greece; and Q. Wang, G. Sgouros, C. Halios, and S. Wang

P7.6
Modeling the Response of Multi-scale Winds in a Mountainous Coastal Region to SST Changes over the East Sea in Korea
Ju-Hee Jeong, Pusan National University, Busan, Korea, Republic of (South); and Y. K. Kim, I. B. Oh, D. Ko, and H. W. Lee

Handout (2.0 MB)

P7.7
Comparing air-sea fluxes of carbon dioxide estimated using the inertial dissipation method with fluxes measured using the eddy-correlation method
Maria Norman, Uppsala University, Uppsala, Sweden; and L. L. Sørensen, M. B. Christiansen, and A. Rutgersson

P7.8
Surface marine wind from the NCEP/NCAR and NCEP/DOE-II reanalyses
Joerg Winterfeldt, Institute for Coastal Research / GKSS Research Center and IMPRS-ESM / Max Planck Institute for Meteorology, Geesthacht, Germany; and R. Weiss

Handout (2.7 MB)

Friday, 13 June 2008

6:00 AM-11:55 PM: Friday, 13 June 2008


FRI. 13 JUNE

9:00 AM-10:00 AM: Friday, 13 June 2008


Session 16A
MARINE BOUNDARY LAYERS—I
Location: Aula Magna Vänster (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: David A. R. Kristovich, ISWS, Prairie Research Institute, University of Illinois
9:00 AM
16A.1
Modeling the boundary layer over Galveston Bay and the Gulf of Mexico for air pollution studies
Wayne M. Angevine, CIRES, University of Colorado, and NOAA/ESRL, Boulder, CO; and M. Zagar, S. C. Tucker, C. W. Fairall, L. Bariteau, D. E. Wolfe, and W. A. Brewer
9:15 AM
16A.2
Enhanced transfer velocity of carbon dioxide during unstable stratification
Anna Rutgersson, Uppsala Univ., Uppsala, Sweden; and A. S. Smedman and E. Sahlée
9:30 AM
16A.3
Vertical structure of the marine boundary layer and surface correlation among humidity temperature and C02 during the LASIE experiment in the Ligurian sea
Anna Maria Sempreviva, Italian National Council of Research, Rome, Italy; and E. Schiano, R. Bozzano, F. M. Grasso, M. Borghini, S. Pensieri, A. Semedo, L. L. Soerensen, C. Transerici, and J. Teixeira

9:45 AM
16A.4
Aircraft-based observations of air-sea fluxes during the Greenland Flow Distortion (GFD) experiment
Guðrún Nína Petersen, University of East Anglia, Norwich, Norfolk, United Kingdom; and I. A. Renfrew

Session 16B
STABLE BOUNDAY LAYERS—II
Location: Aula Magna Höger (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Walter D. Bach Jr., Army Research Laboratory
9:00 AM
16B.1
Effect of the Earth's rotation on the equilibrium depth of a stably stratified barotropic planetary boundary layer
Dmitrii Mironov, German Weather Service, Offenbach am Main, Germany; and E. Fedorovich

9:15 AM
16B.2
Stable Boundary Layer Mixing in a Vertical Diffusion Scheme
Song-You Hong, Yonsei University, Seoul, Korea, Republic of (South); and S. W. Kim
9:30 AM
16B.3
Planetary Boundary Layer Feedback and Its Role in Climate Change
Igor Esau, Nansen Environmental and Remote Sensing Center / Bjerknes Centre for Climate Research, Bergen, Norway
9:45 AM
16B.4
Some evidence of vertical moisture transport during very stable conditions at the Cabauw measurement site
Stephan R. De Roode, Royal Netherlands Meteorological Institute, De Bilt, Netherlands; and F. C. Bosveld

10:00 AM-10:30 AM: Friday, 13 June 2008


COFFEE BREAK

10:30 AM-12:15 PM: Friday, 13 June 2008


Session 17A
MARINE BOUNDARY LAYERS—II
Location: Aula Magna Vänster (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Anna Rutgersson, Uppsala University
10:30 AM
17A.1
Subgrid-scale dynamics of water vapor, heat, and momentum over a lake
Nikki Vercauteren, Freie Universitaet Berlin, Berlin, Germany; and E. Bou-Zeid, M. B. Parlange, U. Lemmin, C. Meneveau, H. Huwald, and J. Selker

10:45 AM
17A.2
On the wave induced wind in the marine atmospheric boundary layer
Alvaro Semedo, Uppsala University, Uppsala, Sweden; and Ø. Sætra and A. Rutgersson
11:00 AM
17A.3
Statistical signature of the surface waves in the wind over the ocean
Tihomir Hristov, Johns Hopkins University, Baltimore, MD
11:15 AM
17A.4
Large Eddy Simulation of Roll Convection during a strong Cold Air Outbreak
Micha Gryschka, Leibniz University, Hannover, Germany; and D. Etling and S. Raasch

11:30 AM
17A.5
11:45 AM
17A.6
12:00 PM
17A.7
Cospectral similarity of pressure terms in the budgets of TKE and horizontal heat flux in the atmospheric surface layer
James M. Wilczak, NOAA, Boulder, CO; and J. B. Edson, J. Hojstrup, J. E. Hare, L. Mahrt, and R. Hill


Session 17B
STABLE BOUNDAY LAYERS—III
Location: Aula Magna Höger (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Walter D. Bach Jr., Army Research Laboratory
10:30 AM
17B.1
Fundamental limitations of using sensible heat flux as a lower boundary condition in stable boundary layer simulation and modeling
Sukanta Basu, Texas Tech University, Lubbock, TX; and A. A. M. Holtslag, B. J. H. Van de Wiel, A. F. Moene, and G. J. Steeneveld

10:45 AM
17B.2A
Subgrid-scale physics under strongly stable atmospheric stratification: the SnoHATS experiment (Formerly 18A.2)
Elie Bou-Zeid, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland; and C. Higgins, M. B. Parlange, H. Huwald, and C. Meneveau

11:00 AM
17B.3
Local similarity from Direct Numerical Simulations
Arnold F. Moene, Wageningen University, Wageningen, Netherlands; and B. J. H. Van de Wiel, H. J. J. Jonker, and W. H. De Ronde

11:15 AM
17B.4
Revisiting Nieuwstadt's collapsed boundary layer
Bas J.H. Van de Wiel, Wageningen University, Wageningen, Netherlands; and A. F. Moene, H. J. J. Jonker, W. H. De Ronde, and F. C. Bosveld

11:30 AM
17B.5
Relating nocturnal mesoscale fluxes to scalar vertical profiles
O. C. Acevedo, Universidade Federal de Santa Maria, Santa Maria, Brazil; and L. Mahrt, D. R. Fitzjarrald, O. Moraes, R. K. Sakai, M. Czikowski, and F. S. Puhales

11:45 AM
17B.6
Long Term Observations of Longwave Radiative Flux Divergence in the Stable Boundary Layer over Land
Gert-Jan Steeneveld, Wageningen University, Wageningen, Netherlands; and C. D. Groot Zwaaftink, M. Wokke, S. Pijlman, B. G. Heusinkveld, A. F. G. Jacobs, and A. A. M. Holtslag
12:00 PM
17B.7
A Numerical and Analytical Study of Intermittency in the Stable Boundary Layer
Wiet H. De Ronde, Delft University of Technology, Delft, Netherlands; and H. J. J. Jonker and B. J. H. Van de Wiel

12:15 PM-1:30 PM: Friday, 13 June 2008


LUNCH BREAK

1:30 PM-3:15 PM: Friday, 13 June 2008


Session 18A
CHATS FIELD PROGRAM
Location: Aula Magna Vänster (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Thomas W. Horst, NCAR
1:30 PM
18A.1
The Canopy Horizontal Array Turbulence Study (CHATS)
Edward G. Patton, NCAR, Boulder, CO; and T. Horst, D. Lenschow, P. Sullivan, S. Oncley, S. Burns, A. Guenther, A. Held, T. Karl, S. Mayor, L. Rizzo, S. Spuler, J. Sun, A. Turnipseed, E. Allwine, S. Edburg, B. Lamb, R. Avissar, H. Holder, R. Calhoun, J. Kleissl, W. J. Massman, and K. T. Paw U
2:00 PM
18A.3
Turbulent pressure fluctuations measured during CHATS
Steven P. Oncley, NCAR, Boulder, CO; and W. J. Massman and E. G. Patton
2:15 PM
18A.4
Convection velocity and spatial turbulence statistics in the trunk space of a forest
Andreas Christen, University of British Columbia, Vancouver, BC, Canada; and D. Scherer, D. Schindler, and R. Vogt

3:00 PM
18A.7
Relaxed eddy accumulation simulations of aerosol number fluxes with various proxy scalars
Andreas Held, NCAR, Boulder, CO; and T. Karl, A. Turnipseed, E. Patton, J. Smith, and A. Guenther


Session 18B
STABLE BOUNDAY LAYERS—IV
Location: Aula Magna Höger (Aula Magna)
Host: 18th Symposium on Boundary Layers and Turbulence
Chair: Branko Kosovic, LLNL
1:30 PM
18B.1
Turbulence in the nocturnal boundary layer: highly-structured, strongly-variable, but ubiquitous
Ben B. Balsley, CIRES/Univ. of Colorado, Boulder, CO; and M. Tjernstrom and G. Svensson
1:45 PM
18B.2
Using the TLS system to improve understanding of atmospheric turbulent processes
Florence Bocquet, CIRES/Univ. of Colorado, Boulder, CO; and B. B. Balsley, M. Tjernstrom, and G. Svensson
2:00 PM
18B.3
Estimating the friction velocity in stable boundary layers
J. L. Argain, University of Algarve, Faro, Portugal; and P. M. A. Miranda and M. A. C. Teixeira

2:15 PM
18B.4
Plume behavior as controlled by the stable boundary layer
April L. Hiscox, University of South Carolina, Columbia, SC; and D. R. Miller and C. J. Nappo

2:30 PM
18B.5
Simulations of gravity wave-turbulence interactions in the stable boundary layer
Benjamin MacCall, Army Research Laboratory, White Sands Missile Range, NM; and P. A. Haines, W. Y. Sun, and W. R. Hsu
2:45 PM
18B.6
3:00 PM
18B.7
The effect of stratification on the aerodynamic roughness length and displacement height
Sergej Zilitinkevich, University of Helsinki, Helsinki, Finland; and I. Mammarella, A. Baklanov, and S. Joffre

3:15 PM-3:30 PM: Friday, 13 June 2008


CLOSING REMARKS AND STUDENT AWARDS
Location: Aula Magna Vänster

3:30 PM-3:30 PM: Friday, 13 June 2008


18th SYMPOSIUM ON BOUNDARY LAYERS AND TURBULENCE ADJORNS