Mixing Height (MH) National Weather Association’s 40th Annual Meeting 2015 10/20/20152 The height above the surface that aerosols vertically disperse.

Slides:

Advertisements

Similar presentations

Chapter 13 Weather Forecasting.

Advertisements

Introduction Irina Surface layer and surface fluxes Anton

Urban Test Beds: Productivity, Problems, and Progress Measurement Networks, Logistics, and Models William J. Shaw 12 th GMU Conference on Transport and.

How do model errors and localization approaches affects model parameter estimation Juan Ruiz, Takemasa Miyoshi and Masaru Kunii

Introduction Changes in suspended sediment concentration (SSC) are important for both the physical and ecological environment. Attenuation of light intensity.

Session 2, Unit 3 Atmospheric Thermodynamics

Skew-T Thermodynamic Diagram Global distribution of weather balloon stations.

Matthew Shupe Ola Persson Paul Johnston Cassie Wheeler Michael Tjernstrom Surface-Based Remote-Sensing of Clouds during ASCOS Univ of Colorado, NOAA and.

Lecture 1 Geraint Vaughan. Radiosondes Vaisala RS80 Vaisala RS92 Launching a radiosonde European radiosonde stations (launch 00 and 12 UTC) Data available.

Mesoscale Circulations during VTMX John Horel Lacey Holland, Mike Splitt, Alex Reinecke

Brian Ancell, Cliff Mass, Gregory J. Hakim University of Washington

Boundary Layer Meteorology

* Reading Assignments:

Characterizing the Boundary-Layer During the Uintah Basin Ozone Study John Horel Erik Crosman, Matt Lammers, Alex Jacques, Nola Lucke, John Lawson, Maggie.

Understanding the Weather Leading to Poor Winter Air Quality Erik Crosman 1, John Horel 1, Chris Foster 1, Lance Avey 2 1 University of Utah Department.

Summary of Current and Ongoing Cold Pool Modeling Research University of Utah/DAQ CAP John Horel, Erik Crosman, Erik Neemann University of Utah Department.

OAQPS Air Quality Modeling Group Fine-scale Meteorological Simulation of Cold Pools in Salt Lake City Chris Misenis, Kirk Baker, Pat Dolwick October 29,

Aircraft spiral on July 20, 2011 at 14 UTC Validation of GOES-R ABI Surface PM2.5 Concentrations using AIRNOW and Aircraft Data Shobha Kondragunta (NOAA),

Characterisation of mixing processes in the lower atmosphere using Rn-222 and climate-sensitive gases P. Schelander, A. Griffiths, A.G. Williams, S. Chambers.

Application of Satellite Data to Particulate, Smoke and Dust Monitoring Spring 2015 ARSET - AQ Applied Remote Sensing Education and Training – Air Quality.

Air Pollution Potential and Fire Weather Forecasting Anthony R. Lupo Atms Sci 4310 / 7310 Lab 9.

© Crown copyright Met Office Future Upper-Air Network Development (FUND)-Integration TECO 2008 St Petersburg Russia Catherine Gaffard, John Nash, Alec.

Chapter 4: How Satellite Data Complement Ground-Based Monitor Data 3:15 – 3:45.

Gpegpe P Introduction A three-year NSF project is underway to investigate the processes leading to the formation, maintenance and destruction of.

Introduction Background Elevated PM 2.5 in Salt Lake Valley Large population, high vehicle emissions Elevated O 3 in Uintah Basin Significant industrial.

On the Model’s Ability to Capture Key Measures Relevant to Air Quality Policies through Analysis of Multi-Year O 3 Observations and CMAQ Simulations Daiwen.

Understanding the Weather Leading to Poor Winter Air Quality Erik Crosman 1, John Horel 1, Chris Foster 1, Lance Avey 2 1 University of Utah Department.

The diagnosis of mixed-layer depth above an eastern U.S. wildfire using a mesoscale numerical weather prediction model Joseph J. Charney USDA Forest Service,

Erik Crosman 1, John Horel 1, Chris Foster 1, Erik Neemann 1 1 University of Utah Department of Atmospheric Sciences Toward Improved NWP Simulations of.

Ekaterina Batchvarova, NIMH, Sofia – NATO-ATC-MTTP 1-10 August 2007 Surface exchange and boundary-layer parametrisations in MM5 and WRF and the European.

Soundings and Adiabatic Diagrams for Severe Weather Prediction and Analysis Continued.

The Role of Virtual Tall Towers in the Carbon Dioxide Observation Network Martha Butler The Pennsylvania State University ChEAS Meeting June 5-6, 2006.

II: Progress of EDMF, III: comparison/validation of convection schemes I: some other stuff Sander Tijm (HIRLAM) Contributions of: Siebesma, De Rooy, Lenderink,

Evaluating forecasts of the evolution of the cloudy boundary layer using radar and lidar observations Andrew Barrett, Robin Hogan and Ewan O’Connor Submitted.

Regional Modeling Joseph Cassmassi South Coast Air Quality Management District USA.

Matthew Shupe Ola Persson Paul Johnston Duane Hazen Clouds during ASCOS U. of Colorado and NOAA.

Lake Effect Snow Forecast Tools at NWS Gaylord, MI Part 1: The Similar Sounding Approach Justin Arnott Science and Operations Officer NWS Gaylord, MI.

Point LRF Forecasting Method By: Brad Satkowski. Main Topics Explanation of method Forecasts Verifications Forecast evaluation Recommendations.

International Workshop on Antarctic Clouds Columbus, OH Polar Meteorology Group, Byrd Polar Research Center, The Ohio State University, Columbus, Ohio.

Towards a Characterization of Arctic Mixed-Phase Clouds Matthew D. Shupe a, Pavlos Kollias b, Ed Luke b a Cooperative Institute for Research in Environmental.

Investigating the typical occurrence of cold-air-pools during the COLd air Pool Experiment (COLPEX) Bradley Jemmett-Smith 15 th Conference of Mountain.

` Observations of Great Salt Lake Breezes During Salt Lake Valley Persistent Cold Air Pools Erik Crosman, John Horel, Neil Lareau, and Xia Dong University.

CHARACTERIZING COLD AIR POOL DYNAMICS USING THERMAL IMAGERY PRESENTED BY CHRIS JOHNSON BIOMICROMETEOROLOGY GROUP.

Gathering Weather Data SWBAT recognize the importance of accurate weather data; describe the technology used to collect weather data; analyze the strengths.

Federal Department of Home Affairs FDHA Federal Office of Meteorology and Climatology MeteoSwiss TKE as a measure of turbulence COSMO General Meeting,

Boundary layer depth verification system at NCEP M. Tsidulko, C. M. Tassone, J. McQueen, G. DiMego, and M. Ek 15th International Symposium for the Advancement.

L15 Atmospheric Stability

Mesoscale processes in the polar atmosphere – the context Suzanne Gray University of Reading February 2013.

 Methodology  Comparison with others instruments  Impact of daily AMF  Conclusions Tropospheric NO 2 from SAOZ F. Goutail, A. Pazmino, A. Griesfeller,

Page 1© Crown copyright Modelling the stable boundary layer and the role of land surface heterogeneity Anne McCabe, Bob Beare, Andy Brown EMS 2005.

Comparison of LM Verification against Multi Level Aircraft Measurements (MLAs) with LM Verification against Temps Ulrich Pflüger, Deutscher Wetterdienst.

Matthew Lagor Remote Sensing Stability Indices and Derived Product Imagery from the GOES Sounder

Identifying amplifying African waves from analysis of their temperature anomalies: how can the NAMMA aircraft, radiosonde and satellite data be merged.

Characterizing the Boundary-Layer During the Uintah Basin Ozone Study Erik Crosman John Horel Others: Matt Lammers, Alex Jacques, Nola Lucke, John Lawson,

OSEs with HIRLAM and HARMONIE for EUCOS Nils Gustafsson, SMHI Sigurdur Thorsteinsson, IMO John de Vries, KNMI Roger Randriamampianina, met.no.

Assessment of Upper atmospheric plume models using Calipso Satellites and Environmental Assessment and Forecasting Chowdhury Nazmi, Yonghua Wu, Barry Gross,

The Life Cycle of a Lake. Water Chemistry Basics Water freezes at 0° Celsius (32° Fahrenheit) Most substances get more dense as they get colder and less.

Improving Air Quality Modeling for the Wasatch Front/Cache Valley Winter Air Pollution Episodes Erik Crosman 1, John Horel 1, Lance Avey 2, Chris Foster.

Observations of cold air pooling in a narrow mountain valley Allison Charland, Craig Clements, Daisuke Seto Department of Meteorology and Climate Science.

Erik Crosman 1, John Horel 1, Chris Foster 1, Erik Neemann 1 1 University of Utah Department of Atmospheric Sciences Toward Improved NWP Simulations of.

Matt Vaughan Class Project ATM 621

Local Wind Systems and Temperature Structure in Mountainous Terrain

Meteorological Site Representativeness and AERSURFACE Issues

Emma Hopkin University of Reading

Planetary Boundary Layer Studies

Session 6: Atmospheric Boundary Layer

Instrumental Surface Temperature Record

Poster EMS Session OSA 1.12 Using a small network of ceilometers in Austria to investigate a Saharan dust episode in April 2016 PM concentration.

Meteorological Measurements for Improved Air Quality Modeling

EART30351 Lecture 2.

Presentation transcript:

Mixing Height (MH) National Weather Association’s 40th Annual Meeting /20/20152 The height above the surface that aerosols vertically disperse. Also referred to as boundary layer depth. Important in fire weather as it is used to predict how well smoke from a fire will ventilate. Important to air pollution by providing the depth pollutants will disperse to.

Motivation National Weather Association’s 40th Annual Meeting /20/20153 R20 – Research from Desert Research Institute shows that there are likely more accurate methods to calculate mixing height. Currently no standard method to calculate mixing height. No verification data readily available to verify mixing height. Highlight a potential new dataset.

Methods of Calculating MH National Weather Association’s 40th Annual Meeting /20/20154 Holzworth Method - (Parcel Method). WR Parcel Method – Same as Holzworth, but 2 degrees added to surface temperature. Stull Method – Similar to Holzworth but uses Virtual Potential Temperature. Bulk Richardson Number – Uses a combination of convective/shear turbulence Utilized data from NCEI Integrated Global Radiosonde Archive for upper air analysis.

National Weather Association’s 40th Annual Meeting /20/20155

National Weather Association’s 40th Annual Meeting /20/20156 Holzworth Stull WR Holzworth Richardson

Mesowest Above Surface Networks National Weather Association’s 40th Annual Meeting /20/20157

Verification Method National Weather Association’s 40th Annual Meeting /20/20158 Ceilometer data from Viasala CL31. Persistent Cold-Air Pool Study (PCAPS) and University of Utah. Multiple methods for calculation of mixing height from data. Used the Idealized Profile method for this study. Ceilometer not co-located with upper air site.

Ceilometer Time/Height National Weather Association’s 40th Annual Meeting /20/20159

Ceilometer Time/Height National Weather Association’s 40th Annual Meeting /20/ Holzworth Stull WR Holzworth Richardson

Ceilometer Time/Height National Weather Association’s 40th Annual Meeting /20/ Holzworth Stull WR Holzworth Richardson

Verification National Weather Association’s 40th Annual Meeting /20/ Holzworth WR Holzworth Stull Richardson

Verification (Spring) National Weather Association’s 40th Annual Meeting /20/ * Below 2000 m

Verification PCAPS (Winter) National Weather Association’s 40th Annual Meeting /20/201514

Verification (Year) National Weather Association’s 40th Annual Meeting /20/ * Below 2000 m

Verification (Year) National Weather Association’s 40th Annual Meeting /20/ * Below 2000 m

Summary National Weather Association’s 40th Annual Meeting /20/ Initial verification shows there is significant uncertainty in the sounding approach compared to the ceilometer. Of the sounding approaches blending the methods seems to be the most skillful. Caveats – Dataset too small to be statistically significant. – Most useful method may be geographically dependent. – Ceilometer data is only useful if aerosols are present. – Verification method for calculating mixing height is not as robust as one would hope for. R20 – Apply method to models through SmartInits.

Acknowledgements National Weather Association’s 40th Annual Meeting /20/ John Horel – University of Utah Joseph Young – University of Utah/Mesowest Persistent Cold Air Pool Study (PCAPS)