Florian Meier, Peter Knippertz Johannes Gutenberg-University Mainz
|
|
- Dortha Walton
- 5 years ago
- Views:
Transcription
1 Sensitivity experiments with the COSMO-Model - the influence of upstream latent heating and wave amplification on a heavy precipitation event over West Africa Florian Meier, Peter Knippertz Johannes Gutenberg-University Mainz
2 mm accumulated precipitation from 06 UTC 9 to 06 UTC 11 January 2002: observations and results of a UW-NMS model simulation climatologic January mean: 1mm from Knippertz and Martin mm in 48h in Podor
3 COSMO-MODEL simulation TRMM-satellite observation
4 upper-level trough COSMO-MODEL simulation TRMM-satellite observation
5 Potential vorticity (PV) modification due to latent heating ρ z latent heating Air with low PV-values on high isentropic surfaces surface
6 latent heating L PV- PV+ PV moisture / uplift Atlantic
7 latent heating L PV- - PV+ moisture / uplift
8 latent heating L - + PV+ PVmoisture / uplift
9 Hypothesis: latent heating during upstream cyclogeneses over the extratropical Atlantic amplification of the PV wave and enforcing of the positive PV-anomaly in front of the west African coast more moisture transport and forcing over West Africa strengthening of the precipitation event
10 COSMO-Model configuration COSMO-Model version 3.21 resolution: 0.4 x 0.4 ; 40 layers; 250x175 gp IFS-analyses as initial and boundary data cloud ice microphysics; Kain-Fritsch convection scheme timestep 60s; runge-kutta dynamics runs started on 2nd January UTC
11 Model domain
12 Sensitivity experiments: control run with full physics completely dry run latent heat constants 0 temperature tendencies concerning lh = 0 - in the whole domain - in parts of the domain - until day five of simulation
13 hpa mean PV control run UTC PVU
14 PVU full physics 0.0 T-tendencies = PVU LH -constants = dry run
15 hpa mean PV control run UTC PVU
16 full physics T-tendencies = 0 LH -constants = 0 PVU PVU dry run
17 K hpa equivalent potential temperature on 850 hpa and sea-level pressure in hpa
18 < 970hPa < 1010hPa < 990hPa < 1020hPa K full physics 5th January UTC experiment (T-tendencies =0)
19 hpa differences in sea-level pressure in hpa difference full physics - experiment 5th January UTC 9th January UTC
20 First summary deeper cyclones in the extratropics with latent heating stronger PV-anomalies in the extratropics and near the African coast differences more obvious on 5th January effect on the precipitation quantity?
21 48h accumulated precipitation 9th January 06 UTC full physics experiment
22 48h accumulated precipitation 9th January 06 UTC full physics run latent heating suppressed only in parts of the domain
23 48h accumulated precipitation 9th January 06 UTC full physics run latent heating started after first PV-anomaly had passed
24 Only weak influence of latent heating on simulated precipitation quantity
25 kg/m^ kg/m^ full physics full physics - experiment vertically integrated water vapor, cloud-water, cloud-ice in kg/m 2 9th January UTC
26 g/kg g/kg full physics experiment 78h backward trajectories specific humidity along trajectories 9th January UTC - 6th January UTC -
27 g/kg g/kg full physics full physics - experiment mixingratio g/kg and wind 700hPa
28 gpdm K full physics - experiment Δgeopotential 700hPa in gpdm full physics - experiment ΔT 850 hpa in K 6th January UTC
29 km K m full physics run 60h backward trajectories height along trajectories full physics - experiment ΔT 850 hpa in K 6th January UTC
30 km K full physics run 60h backward trajectories height along trajectories 6th January UTC full physics - experiment ΔT 500 hpa in K 6th January UTC -60h
31 Conclusions - Strong influence of latent heating in the extratropics (cyclogeneses, fronts, PV-structures) - Stronger PV-anomalies near West Africa - Weak changes in the precipitation quantity - Higher atmospheric water content in sensitivity experiment - Weaker moisture transport in the control run due to compensating geopotential modification
32
33
34 l2tls=.true., irunge_kutta=2, irk_order=3, iadv_order=5, lsl_adv_qx=.false., yef_adv_qx='bott_4', lva_impl_dyn=.true., ieva_order=3,
35 ECMWFanalysis Runge Kutta Leapfrog
36 full physics LH off in parts of domain
37 Kain-Fritsch Tiedtke
38
39 full physics 5th January UTC full physics - experiment mixingratio g/kg and wind 700hPa
40 full physics full physics - experiment mixingratio g/kg and wind 700hPa
41 full physics full physics - experiment mixingratio g/kg and wind 700hPa
42 full physics full physics - experiment mixingratio g/kg and wind 700hPa
43 full physics full physics - experiment mixingratio g/kg and wind 700hPa
44 full physics full physics - experiment mixingratio g/kg and wind 700hPa
45 full physics full physics - experiment mixingratio g/kg and wind 700hPa
46 full physics full physics - experiment mixingratio g/kg and wind 700hPa
47 full physics full physics - experiment mixingratio g/kg and wind 700hPa
48 Conclusions - Strong influence of latent heating in the extratropics (cyclogeneses, fronts, PV-structures) - Stronger PV-anomalies near West Africa - Weak changes in the precipitation quantity - Higher atmospheric water content in sensitivity experiment - Weaker moisture transport in the control run due to compensating geopotential modification
49 975hpa Equivalent potential temperature on 850 hpa and sea-level pressure
50 < 970hPa full physics < 1000hPa experiment 9th January UTC
51 full physics run full physics - experiment vertical motion on 700hPa in Pa s -1 9th January UTC
52 cyclone development in dry dynamics Lifecycle (LC) 1 Jet after Thorncroft et al. 1991
53 full physics - experiment ΔT 850 hpa in K and Δgeopotential 850hpa in gpdm full physics - experiment ΔSLP in hpa and Δgeopotential 500hPa in gpdm 6th January UTC
54 abs. vorticityadvection and SLP 6th January UTC full physics run
Microphysical heating rates and PV modification in a warm conveyor belt: Comparison of a COSMO and IFS simulation
Microphysical heating rates and PV modification in a warm conveyor belt: Comparison of a COSMO and IFS simulation Montreal, August 18th 2014 H. Joos1, M. Böttcher1, R. Forbes2 and H. Wernli1 1) IAC, ETH
More informationDiabatic processes and the structure of extratropical cyclones
Geophysical and Nonlinear Fluid Dynamics Seminar AOPP, Oxford, 23 October 2012 Diabatic processes and the structure of extratropical cyclones Oscar Martínez-Alvarado R. Plant, J. Chagnon, S. Gray, J. Methven
More informationCONVECTION-ALLOWING SIMULATIONS OF COLD POOLS IN THE NORTHWESTERN SAHARA
COSMO User Seminar, Langen, 4th March 2008 CONVECTION-ALLOWING SIMULATIONS OF COLD POOLS IN THE NORTHWESTERN SAHARA 1 Peter Knippertz, 1 Jörg Trentmann & 2 Axel Seifert 1 Institute for Atmospheric Physics,
More informationThe Role of Post Cold Frontal Cumulus Clouds in an Extratropical Cyclone Case Study
The Role of Post Cold Frontal Cumulus Clouds in an Extratropical Cyclone Case Study Amanda M. Sheffield and Susan C. van den Heever Colorado State University Dynamics and Predictability of Middle Latitude
More informationDiabatic processes and the structure of the warm conveyor belt
2 nd European Windstorm Workshop Leeds, 3-4 September 2012 Diabatic processes and the structure of the warm conveyor belt Oscar Martínez-Alvarado J. Chagnon, S. Gray, R. Plant, J. Methven Department of
More informationExtratropical processes and forecast errors
Extratropical processes and forecast errors Heini Wernli With contributions from: Andreas Dörnbrack, Sarah Jones, George Craig Maxi Böttcher, Hanna Joos, Andreas Schäfler, Matthias Zimmer, Florian Meier,
More informationWhat does a cloud-resolving model bring during an extratropical transition?
What does a cloud-resolving model bring during an extratropical transition? Florian Pantillon (1) Jean-Pierre Chaboureau (1) Christine Lac (2) Patrick Mascart (1) (1) Laboratoire d'aérologie, Toulouse,
More informationNumerical modelling of the interaction of soil moisture with planetary boundary layer features and convection over West Africa
Numerical modelling of the interaction of soil moisture with planetary boundary layer features and convection over West Africa Leonhard Gantner, Norbert Kalthoff, and Martin Kohler Photo: J. Schwendike
More informationSynoptic Meteorology
M.Sc. in Meteorology Synoptic Meteorology [MAPH P312] Prof Peter Lynch Second Semester, 2004 2005 Seminar Room Dept. of Maths. Physics, UCD, Belfield. Part 9 Extratropical Weather Systems These lectures
More informationVictor Homar * and David J. Stensrud NOAA/NSSL, Norman, Oklahoma
3.5 SENSITIVITIES OF AN INTENSE CYCLONE OVER THE WESTERN MEDITERRANEAN Victor Homar * and David J. Stensrud NOAA/NSSL, Norman, Oklahoma 1. INTRODUCTION The Mediterranean region is a very active cyclogenetic
More informationSynoptic-Dynamic Meteorology in Midlatitudes
Synoptic-Dynamic Meteorology in Midlatitudes VOLUME II Observations and Theory of Weather Systems HOWARD B. BLUESTEIN New York Oxford OXFORD UNIVERSITY PRESS 1993 Contents 1. THE BEHAVIOR OF SYNOPTIC-SCALE,
More informationMoisture transport to Syowa Station and Dome Fuji Station, Antarctica
Session 5: Science Using Ground-Based and Satellite Measurements Moisture transport to Syowa Station and Dome Fuji Station, Antarctica Kazue Suzuki, Takashi Yamanouchi, Naohiko Hirasawa and Hideaki Motoyama
More informationClimatology of dry air intrusions and their relation to strong surface winds in extratropical cyclones
Climatology of dry air intrusions and their relation to strong surface winds in extratropical cyclones...and intro to synoptic and meso-scale cyclone dynamics Shira Raveh-Rubin and Heini Wernli Institute
More informationExtratropical and Polar Cloud Systems
Extratropical and Polar Cloud Systems Gunilla Svensson Department of Meteorology & Bolin Centre for Climate Research George Tselioudis Extratropical and Polar Cloud Systems Lecture 1 Extratropical cyclones
More informationObservations of Mediterranean Precipitating Systems using AMSU
Observations of Mediterranean Precipitating Systems using AMSU Beatriz FUNATSU 1, Chantal CLAUD 1 and Jean-Pierre CHABOUREAU 2 1 Laboratoire de Meteorologie Dynamique/IPSL, Palaiseau 2 Laboratoire d Aerologie/CNRS-UPS,
More informationMesoscale Atmospheric Systems. Surface fronts and frontogenesis. 06 March 2018 Heini Wernli. 06 March 2018 H. Wernli 1
Mesoscale Atmospheric Systems Surface fronts and frontogenesis 06 March 2018 Heini Wernli 06 March 2018 H. Wernli 1 Temperature (degc) Frontal passage in Mainz on 26 March 2010 06 March 2018 H. Wernli
More informationEnsemble Trajectories and Moisture Quantification for the Hurricane Joaquin (2015) Event
Ensemble Trajectories and Moisture Quantification for the Hurricane Joaquin (2015) Event Chasity Henson and Patrick Market Atmospheric Sciences, School of Natural Resources University of Missouri 19 September
More informationTropical Waves. John Cangialosi and Lixion Avila National Hurricane Center. WMO Region IV Tropical Cyclone Workshop
Tropical Waves John Cangialosi and Lixion Avila National Hurricane Center WMO Region IV Tropical Cyclone Workshop Outline Basic definition Schematic diagrams/interactions Operational products/forecasts
More informationJoshua M. Boustead *1 NOAA/NWS WFO Omaha/Valley, NE. Philip N. Schumacher NOAA/NWS WFO Sioux Falls, SD
11B.2 Influence of Diabatic Potential Vorticity Anomalies upon Warm Conveyor Belt Flow. Part II: 3-5 January 2005 Joshua M. Boustead *1 NOAA/NWS WFO Omaha/Valley, NE Philip N. Schumacher NOAA/NWS WFO Sioux
More information2D.1 DETERMINATION OF A CONSISTENT TIME FOR THE EXTRATROPICAL TRANSITION OF TROPICAL CYCLONES
2D.1 DETERMINATION OF A CONSISTENT TIME FOR THE EXTRATROPICAL TRANSITION OF TROPICAL CYCLONES David E. Kofron*, Elizabeth A. Ritchie, and J. Scott Tyo University of Arizona, Tucson, Arizona 1. INTRODUCTION
More informationVariability of West African Weather Systems. Chris Thorncroft Department of Atmospheric and Environmental Sciences University at Albany
Variability of West African Weather Systems Chris Thorncroft Department of Atmospheric and Environmental Sciences University at Albany Variability of West African Weather Systems (1) Convectively Coupled
More informationClimate Change: Mesoscale and Synoptic- Scale Precipitation Events
Climate Change: Mesoscale and Synoptic- Scale Precipitation Events Gary Lackmann, North Carolina State University Collaborators: M. Cipullo, J. Willison, M. Mallard, W. Robinson CLIVAR Workshop on LSMPs
More informationKalimantan realistically (Figs. 8.23a-d). Also, the wind speeds of the westerly
suppressed rainfall rate (maximum vertical velocity) around 17 LST (Figs. 8.21a-b). These results are in agreement with previous studies (e. g., Emanuel and Raymond 1994). The diurnal variation of maximum
More informationand 24 mm, hPa lapse rates between 3 and 4 K km 1, lifted index values
3.2 Composite analysis 3.2.1 Pure gradient composites The composite initial NE report in the pure gradient northwest composite (N = 32) occurs where the mean sea level pressure (MSLP) gradient is strongest
More information5D.6 EASTERLY WAVE STRUCTURAL EVOLUTION OVER WEST AFRICA AND THE EAST ATLANTIC 1. INTRODUCTION 2. COMPOSITE GENERATION
5D.6 EASTERLY WAVE STRUCTURAL EVOLUTION OVER WEST AFRICA AND THE EAST ATLANTIC Matthew A. Janiga* University at Albany, Albany, NY 1. INTRODUCTION African easterly waves (AEWs) are synoptic-scale disturbances
More informationSimulations with different convection parameterizations in the LM
Simulations with different convection parameterizations in the LM Linda Smoydzin Almut Gassmann Andreas Bott Marco Arpagaus (Meteo Swiss) Meteorological Institute of the University of Bonn, Germany Aims
More informationMoist static energy budget diagnostics for. monsoon research. H. Annamalai
Moist static energy budget diagnostics for monsoon research H. Annamalai JJAS Precipitation and SST Climatology I III II Multiple regional heat sources - EIO and SPCZ still experience high precipitation
More informationDescription of the ET of Super Typhoon Choi-Wan (2009) based on the YOTC-dataset
High Impact Weather PANDOWAE Description of the ET of Super Typhoon Choi-Wan (2009) based on the YOTC-dataset ¹, D. Anwender¹, S. C. Jones2, J. Keller2, L. Scheck¹ 2 ¹Karlsruhe Institute of Technology,
More informationCharacteristics of extreme convection over equatorial America and Africa
Characteristics of extreme convection over equatorial America and Africa Manuel D. Zuluaga, K. Rasmussen and R. A. Houze Jr. Atmospheric & Climate Dynamics Seminar Department of Atmospheric Sciences, University
More information11B.1 INFLUENCE OF DIABATIC POTENTIAL VORTICITY ANOMALIES UPON WARM CONVEYOR BELT FLOW. PART I: FEBRUARY 2003
INFLUENCE OF DIABATIC POTENTIAL VORTICITY ANOMALIES UPON WARM CONVEYOR BELT FLOW. PART I: 14-15 FEBRUARY 2003 Philip N. Schumacher, NOAA/NWS, Sioux Falls, SD Joshua M. Boustead, NOAA/NWS, Valley, NE Martin
More informationMultiscale Analyses of Inland Tropical Cyclone Midlatitude Jet Interactions: Camille (1969) and Danny (1997)
Multiscale Analyses of Inland Tropical Cyclone Midlatitude Jet Interactions: Camille (1969) and Danny (1997) Matthew Potter, Lance Bosart, and Daniel Keyser Department of Atmospheric and Environmental
More informationCPTEC and NCEP Model Forecast Drift and South America during the Southern Hemisphere Summer
CPTEC and NCEP Model Forecast Drift and South America during the Southern Hemisphere Summer José Antonio Aravéquia 1 Pedro L. Silva Dias 2 (1) Center for Weather Forecasting and Climate Research National
More informationIsentropic Analysis. Much of this presentation is due to Jim Moore, SLU
Isentropic Analysis Much of this presentation is due to Jim Moore, SLU Utility of Isentropic Analysis Diagnose and visualize vertical motion - through advection of pressure and system-relative flow Depict
More informationChapter 5. Summary and Conclusions
Chapter 5. Summary and Conclusions Two cases of heavy rainfall were analyzed using observational data sets and model simulations. The first case was the landfall of Hurricane Floyd in North Carolina in
More informationAmplification of high precipitation in the Western Mediterranean by Corsica island flow and convection
Amplification of high precipitation in the Western Mediterranean by Corsica island flow and convection Ch. Kottmeier, Karlsruhe Institute of Technology With contributions by B. Adler, I.Kraut, B. Vogel,
More informationMulti-scale Predictability Aspects of a Severe European Winter Storm
1 Multi-scale Predictability Aspects of a Severe European Winter Storm NASA MODIS James D. Doyle, C. Amerault, P. A. Reinecke, C. Reynolds Naval Research Laboratory, Monterey, CA Mesoscale Predictability
More information1.4 CONNECTIONS BETWEEN PV INTRUSIONS AND TROPICAL CONVECTION. Beatriz M. Funatsu* and Darryn Waugh The Johns Hopkins University, Baltimore, MD
1.4 CONNECTIONS BETWEEN PV INTRUSIONS AND TROPICAL CONVECTION Beatriz M. Funatsu* and Darryn Waugh The Johns Hopkins University, Baltimore, MD 1. INTRODUCTION Stratospheric intrusions into the tropical
More informationSynoptic Meteorology II: Self-Development in the IPV Framework. 5-7 May 2015
Synoptic Meteorology II: Self-Development in the IPV Framework 5-7 May 2015 Readings: Section 5.3.6 of Midlatitude Synoptic Meteorology. Introduction In this and other recent lectures, we have developed
More informationPV Generation in the Boundary Layer
1 PV Generation in the Boundary Layer Robert Plant 18th February 2003 (With thanks to S. Belcher) 2 Introduction How does the boundary layer modify the behaviour of weather systems? Often regarded as a
More informationCharacterizing the role of diabatic processes for the modification of mid-latitude Rossby waves and Jetstream winds
Characterizing the role of diabatic processes for the modification of mid-latitude Rossby waves and Jetstream winds Andreas Schäfler 1, George Craig 2, Andreas Dörnbrack 1, Florian Harnisch 4, Uwe Marksteiner
More informationWeather report 28 November 2017 Campinas/SP
Weather report 28 November 2017 Campinas/SP Summary: 1) Synoptic analysis and pre-convective environment 2) Verification 1) Synoptic analysis and pre-convective environment: At 1200 UTC 28 November 2017
More informationHigh-Resolution MPAS Simulations for Analysis of Climate Change Effects on Weather Extremes
High-Resolution MPAS Simulations for Analysis of Climate Change Effects on Weather Extremes ALLISON MICHAELIS, GARY LACKMANN, & WALT ROBINSON Department of Marine, Earth, and Atmospheric Sciences, North
More informationConvection-Resolving Model Simulations: Process-Based Comparison of LM Results with Observations
Convection-Resolving Model Simulations: Process-Based Comparison of LM Results with Observations Jörg Trentmann, Britta Wecker, Marcus Paulat, Heini Wernli, Ulrich Corsmeier, Jan Handwerker Goal Improve
More informationCHAPTER 8 NUMERICAL SIMULATIONS OF THE ITCZ OVER THE INDIAN OCEAN AND INDONESIA DURING A NORMAL YEAR AND DURING AN ENSO YEAR
CHAPTER 8 NUMERICAL SIMULATIONS OF THE ITCZ OVER THE INDIAN OCEAN AND INDONESIA DURING A NORMAL YEAR AND DURING AN ENSO YEAR In this chapter, comparisons between the model-produced and analyzed streamlines,
More informationWATER VAPOR FLUXES OVER EQUATORIAL CENTRAL AFRICA
WATER VAPOR FLUXES OVER EQUATORIAL CENTRAL AFRICA INTRODUCTION A good understanding of the causes of climate variability depend, to the large extend, on the precise knowledge of the functioning of the
More informationA SEVERE WEATHER EVENT IN ROMANIA DUE TO MEDITERRANEAN CYCLONIC ACTIVITY
A SEVERE WEATHER EVENT IN ROMANIA DUE TO MEDITERRANEAN CYCLONIC ACTIVITY Florinela Georgescu, Gabriela Bancila, Viorica Dima National Meteorological Administration, Bucharest, Romania Abstract Mediterranean
More informationEnergy Dispersion in African Easterly Waves
130 J O U R N A L O F T H E A T M O S P H E R I C S C I E N C E S VOLUME 70 Energy Dispersion in African Easterly Waves MICHAEL DIAZ AND ANANTHA AIYYER Department of Marine, Earth, and Atmospheric Sciences,
More informationThe Impact of air-sea interaction on the extratropical transition of tropical cyclones
The Impact of air-sea interaction on the extratropical transition of tropical cyclones Sarah Jones Institut für Meteorologie und Klimaforschung Universität Karlsruhe / Forschungszentrum Karlsruhe 1. Introduction
More informationA 40-year climatology of extratropical transition in the eastern North Pacific continued (and some other stuff)
GOES-EAST image of Hurricane Dora, 1445 UTC 21 July 2011 A 40-year climatology of extratropical transition in the eastern North Pacific continued (and some other stuff) Elizabeth A. Ritchie and Kimberly
More informationSpatial variability of summer precipitation related to the dynamics of the Great Plains low-level jet
Spatial variability of summer precipitation related to the dynamics of the Great Plains low-level jet Bing Pu and Robert E. Dickinson Department of Geological Sciences, Jackson School of Geosciences The
More informationInterhemispheric climate connections: What can the atmosphere do?
Interhemispheric climate connections: What can the atmosphere do? Raymond T. Pierrehumbert The University of Chicago 1 Uncertain feedbacks plague estimates of climate sensitivity 2 Water Vapor Models agree
More informationThe Effect of Sea Spray on Tropical Cyclone Intensity
The Effect of Sea Spray on Tropical Cyclone Intensity Jeffrey S. Gall, Young Kwon, and William Frank The Pennsylvania State University University Park, Pennsylvania 16802 1. Introduction Under high-wind
More informationDANO, Burkina Faso. Instruments Data set Status Highlights. Norbert Kalthoff and Juliane Schwendike. Institut für Meteorologie und Klimaforschung
DANO, Burkina Faso Instruments Data set Status Highlights by Norbert Kalthoff and Juliane Schwendike Dano (super-)site in Burkina Faso Dreyer Foundation Dano Dano Bontioli Measurements at Bontioli site
More informationInfluence of microphysical processes on the potential vorticity development in a warm conveyor belt: a case-study with the limited-area model COSMO
Quarterly Journal of the Royal Meteorological Society Q. J. R. Meteorol. Soc. 138: 407 418, January 2012 B Influence of microphysical processes on the potential vorticity development in a warm conveyor
More informationSUPPLEMENTARY INFORMATION
Figure S1. Summary of the climatic responses to the Gulf Stream. On the offshore flank of the SST front (black dashed curve) of the Gulf Stream (green long arrow), surface wind convergence associated with
More informationTropical Cyclone Genesis: What we know, and what we don t!
Tropical Cyclone Genesis: What we know, and what we don t! Allison Wing! NSF Postdoctoral Research Fellow! Lamont-Doherty Earth Observatory! Columbia University! Overview! Climatology! What We Know! Theories!
More informationAfrican Easterly Waves and Convection: A Potential Vorticity Perspective. James Russell & Anantha Aiyyer North Carolina State University
African Easterly Waves and Convection: A Potential Vorticity Perspective James Russell & Anantha Aiyyer North Carolina State University Background 1. Introduction Early studies described AEWs as dry adiabatic
More informationThe Impact of the Extratropical Transition of Typhoon Dale (1996) on the Early Wintertime Stratospheric Circulation
The Impact of the Extratropical Transition of Typhoon Dale (1996) on the Early 1996-97 Wintertime Stratospheric Circulation Andrea L. Lang 1, Jason M. Cordeira 2, Lance F. Bosart 1 and Daniel Keyser 1
More informationMid-Latitude Dynamics and Atmospheric Rivers
Mid-Latitude Dynamics and Atmospheric Rivers Session: Theory, Structure, Processes 1 Wednesday, 10 August 2016 Contribution from: Heini Werni Peter Knippertz Harold Sodemann Andreas Stohl Francina Dominguez
More informationINTERPRETATION GUIDE TO MSG WATER VAPOUR CHANNELS
INTERPRETATION GUIDE TO MSG WATER VAPOUR CHANNELS C.G. Georgiev1 and P. Santurette2 1 National Institute of Meteorology and Hydrology, Tsarigradsko chaussee 66, 1784 Sofia, Bulgaria 2 Météo-France, 42,
More information1. INTRODUCTION: 2. DATA AND METHODOLOGY:
27th Conference on Hurricanes and Tropical Meteorology, 24-28 April 2006, Monterey, CA 3A.4 SUPERTYPHOON DALE (1996): A REMARKABLE STORM FROM BIRTH THROUGH EXTRATROPICAL TRANSITION TO EXPLOSIVE REINTENSIFICATION
More informationWRF Model Simulated Proxy Datasets Used for GOES-R Research Activities
WRF Model Simulated Proxy Datasets Used for GOES-R Research Activities Jason Otkin Cooperative Institute for Meteorological Satellite Studies Space Science and Engineering Center University of Wisconsin
More informationForecast of hurricane track and intensity with advanced IR soundings
Forecast of hurricane track and intensity with advanced IR soundings Jun Li @, Hui Liu #, Jinlong Li @, and Tim Schmit & @CIMSS/SSEC, University of Wisconsin-Madison #National Center for Atmospheric Research
More informationPredictability of convective precipitation: Convection permitting ensemble simulations
Predictability of convective precipitation: Convection permitting ensemble simulations Vera Maurer, Norbert Kalthoff, and Leonhard Gantner Institute for Meteorology and Climate Research () KIT University
More informationSchool of Earth and Environmental Sciences, Seoul National University. Dong-Kyou Lee. Contribution: Dr. Yonhan Choi (UNIST/NCAR) IWTF/ACTS
School of Earth and Environmental Sciences, Seoul National University Dong-Kyou Lee Contribution: Dr. Yonhan Choi (UNIST/NCAR) IWTF/ACTS CONTENTS Introduction Heavy Rainfall Cases Data Assimilation Summary
More information10B.2 THE ROLE OF THE OCCLUSION PROCESS IN THE EXTRATROPICAL-TO-TROPICAL TRANSITION OF ATLANTIC HURRICANE KAREN
10B.2 THE ROLE OF THE OCCLUSION PROCESS IN THE EXTRATROPICAL-TO-TROPICAL TRANSITION OF ATLANTIC HURRICANE KAREN Andrew L. Hulme* and Jonathan E. Martin University of Wisconsin-Madison, Madison, Wisconsin
More informationEXAMINING PLANETARY, SYNOPTIC, AND MESOSCALE FEATURES THAT ENHANCE PRECIPITATION ASSOCIATED WITH TROPICAL CYCLONES MAKING LANDFALL OVER NORTH CAROLINA
EXAMINING PLANETARY, SYNOPTIC, AND MESOSCALE FEATURES THAT ENHANCE PRECIPITATION ASSOCIATED WITH TROPICAL CYCLONES MAKING LANDFALL OVER NORTH CAROLINA Meredith S. Croke*, Michael L. Kaplan and Lian Xie
More information11/19/14. Chapter 11: Hurricanes. The Atmosphere: An Introduction to Meteorology, 12 th. Lutgens Tarbuck
Chapter 11: Hurricanes The Atmosphere: An Introduction to Meteorology, 12 th Lutgens Tarbuck Lectures by: Heather Gallacher, Cleveland State University! Hurricanes: " Hurricanes are intense centers of
More informationNonlinear Structure and Evolution of African Easterly Waves
Nonlinear Structure and Evolution of African Easterly Waves Nathan R. Hardin North Carolina State University, Raleigh, NC 1 Introduction African easterly waves (AEWs) are important synoptic-scale weather
More informationThe water vapour channels of SEVIRI (Meteosat). An introduction
The water vapour channels of SEVIRI (Meteosat). An introduction jose.prieto@eumetsat.int Cachoeira P. July 2006 Formats 1.5 1 Objectives 2 Describe the characteristics of WV channels on board of SEVIRI
More informationShu-Ya Chen 1, Tae-Kwon Wee 1, Ying-Hwa Kuo 1,2, and David H. Bromwich 3. University Corporation for Atmospheric Research, Boulder, Colorado 2
IMPACT OF GPS RADIO OCCULTATION DATA ON ANALYSIS AND PREDICTION OF AN INTENSE SYNOPTIC-SCALE STORM OVER THE SOUTHERN OCEAN NEAR THE ANTARCTIC PENINSULA Shu-Ya Chen 1, Tae-Kwon Wee 1, Ying-Hwa Kuo 1,2,
More information1. COLD FRONT - CLOUD STRUCTURE IN SATELLITE IMAGES
1. COLD FRONT - CLOUD STRUCTURE IN SATELLITE IMAGES The satellite image shows a cyclonically curved synoptic scale cloud band usually a few hundred kilometres wide; in the VIS image the cloud band mostly
More informationPredicting Tropical Cyclone Formation and Structure Change
Predicting Tropical Cyclone Formation and Structure Change Patrick A. Harr Department of Meteorology Naval Postgraduate School Monterey, CA 93943-5114 phone: (831)656-3787 fax: (831)656-3061 email: paharr@nps.navy.mil
More informationNortheastern United States Snowstorm of 9 February 2017
Northeastern United States Snowstorm of 9 February 2017 By Richard H. Grumm and Charles Ross National Weather Service State College, PA 1. Overview A strong shortwave produced a stripe of precipitation
More informationP R O L O G U E CORRELATION COEF. dsst/dt during wintertime (i.e., end of Feb. minus beginning of Dec, using 11-day averaged climatology)
P R O L O G U E dsst/dt during wintertime (i.e., end of Feb. minus beginning of Dec, using 11-day averaged climatology) Correlation between total precipitable water (from NVAP-M) and total cloud (from
More informationHeavy Rainfall and Flooding of 23 July 2009 By Richard H. Grumm And Ron Holmes National Weather Service Office State College, PA 16803
Heavy Rainfall and Flooding of 23 July 2009 By Richard H. Grumm And Ron Holmes National Weather Service Office State College, PA 16803 1. INTRODUCTION Heavy rains fall over Pennsylvania and eastern New
More informationNumerical Experiments of Tropical Cyclone Seasonality over the Western North Pacific
Numerical Experiments of Tropical Cyclone Seasonality over the Western North Pacific Dong-Kyou Lee School of Earth and Environmental Sciences Seoul National University, Korea Contributors: Suk-Jin Choi,
More informationFORECASTING ACTIVITIES DURING THE SOP THE WEST AFRICA SYNTHETIC ANALYSIS WASA/F APPROACH
FORECASTING ACTIVITIES DURING THE SOP THE WEST AFRICA SYNTHETIC ANALYSIS WASA/F APPROACH J.P. Lafore 1, Z. Mumba 2, P. Chapelet 1, N. Chapelon 1, M. Dufresne 2, R. Agbabu 2, A. Abdoul-Aziz 2, H. Hamidou
More informationClimate Change & Hurricane Sandy
Climate Change & Hurricane Sandy Gary Lackmann, Kevin Hill & Megan Mallard Dept. of Marine, Earth, & Atmospheric Sciences North Carolina State University http://www.good.is/posts/so-now-is-probably-a-good-time-to-talk-about-climate-change
More informationExtratropical Cyclone Clouds: Impact on Cyclone Strength and Climate
Extratropical Cyclone Clouds: Impact on Cyclone Strength and Climate James B. Polly William B. Rossow City College of the City University of New York NOAA NESDIS CORP Science Symposium 2014 September 09
More informationInfluence of IASI Data on the forecast of ET events. Doris Anwender, Nadia Fourrie, Florence Rabier, Philippe Arbogast
Influence of IASI Data on the forecast of ET events Doris Anwender, Nadia Fourrie, Florence Rabier, Philippe Arbogast Overview Arpege The experiments Nord2 Global results Results for ET Error reduction
More informationSevere Weather with a strong cold front: 2-3 April 2006 By Richard H. Grumm National Weather Service Office State College, PA 16803
Severe Weather with a strong cold front: 2-3 April 2006 By Richard H. Grumm National Weather Service Office State College, PA 16803 1. INTRODUCTION A strong cold front brought severe weather to much of
More informationGlobal Atmospheric Circulation
Global Atmospheric Circulation Polar Climatology & Climate Variability Lecture 11 Nov. 22, 2010 Global Atmospheric Circulation Global Atmospheric Circulation Global Atmospheric Circulation The Polar Vortex
More informationKatherine E. Lukens and E. Hugo Berbery. Acknowledgements: Kevin I. Hodges 1 and Matthew Hawcroft 2. University of Reading, Reading, Berkshire, UK
Boreal Winter Storm Tracks and Related Precipitation in North America: A Potential Vorticity Perspective Katherine E. Lukens and E. Hugo Berbery Acknowledgements: Kevin I. Hodges 1 and Matthew Hawcroft
More informationERA report series. 1 The ERA-Interim archive. ERA-Interim ERA-40. Version 1.0 ERA-15
ERA report series ERA-15 ERA-40 ERA-Interim 1 The ERA-Interim archive Version 1.0 Paul Berrisford, Dick Dee, Keith Fielding, Manuel Fuentes, Per Kållberg, Shinya Kobayashi and Sakari Uppala Series: ERA
More informationEasyChair Preprint. Sotirios Tsiougkos and Dimitrios Brikas. November 9, 2018
EasyChair Preprint 616 Calculation of dynamic and thermodynamic parameters from spatial data of high spatial resolution of a weather event s specific case study event that occurred on the 16th and 17th
More information8 Mechanisms for tropical rainfall responses to equatorial
8 Mechanisms for tropical rainfall responses to equatorial heating More reading: 1. Hamouda, M. and Kucharski, F. (2019) Ekman pumping Mechanism driving Precipitation anomalies in Response to Equatorial
More informationKelly Mahoney NOAA ESRL Physical Sciences Division
The role of gray zone convective model physics in highresolution simulations of the 2013 Colorado Front Range Flood WRF model simulated precipitation over terrain in CO Front Range Kelly Mahoney NOAA ESRL
More informationESCI 344 Tropical Meteorology Lesson 8 Tropical Weather Systems
ESCI 344 Tropical Meteorology Lesson 8 Tropical Weather Systems References: Tropical Climatology (2 nd Ed.), McGregor and Nieuwolt Climate and Weather in the Tropics, Riehl Climate Dynamics of the Tropics,
More informationINFLUENCE OF LARGE-SCALE ATMOSPHERIC MOISTURE FLUXES ON THE INTERANNUAL TO MULTIDECADAL RAINFALL VARIABILITY OF THE WEST AFRICAN MONSOON
3C.4 INFLUENCE OF LARGE-SCALE ATMOSPHERIC MOISTURE FLUXES ON THE INTERANNUAL TO MULTIDECADAL RAINFALL VARIABILITY OF THE WEST AFRICAN MONSOON Andreas H. Fink*, and Sonja Eikenberg University of Cologne,
More informationApplication and verification of ECMWF products 2016
Application and verification of ECMWF products 2016 Hellenic National Meteorological Service (HNMS) Flora Gofa and Panagiotis Skrimizeas 1. Summary of major highlights In order to determine the quality
More informationVertical structure. To conclude, we will review the critical factors invloved in the development of extratropical storms.
Vertical structure Now we will examine the vertical structure of the intense baroclinic wave using three visualization tools: Upper level charts at selected pressure levels Vertical soundings for selected
More informationESCI 344 Tropical Meteorology Lesson 11 Tropical Cyclones: Formation, Maintenance, and Intensification
ESCI 344 Tropical Meteorology Lesson 11 Tropical Cyclones: Formation, Maintenance, and Intensification References: A Global View of Tropical Cyclones, Elsberry (ed.) Global Perspectives on Tropical Cylones:
More informationECMWF Medium-Range Forecast Graphical Products
ECMWF Medium-Range Forecast Graphical Products Analysis Snow cover, ice cover, albedo, leaf area index, orography and sea depth Albedo Europe, Global, Central Europe, North West Europe, North East Europe,
More informationScience Olympiad Meteorology Quiz #1 Page 1 of 7
1) What is generally true about the stratosphere: a) Has turbulent updrafts and downdrafts. b) Has either a stable or increasing temperature profile with altitude. c) Where the auroras occur. d) Both a)
More informationThe Arctic Energy Budget
The Arctic Energy Budget The global heat engine [courtesy Kevin Trenberth, NCAR]. Differential solar heating between low and high latitudes gives rise to a circulation of the atmosphere and ocean that
More informationNational Weather Service-Pennsylvania State University Weather Events
National Weather Service-Pennsylvania State University Weather Events Heavy rainfall of 23 November 2011 by Richard H. Grumm National Weather Service State College PA 16803 Abstract:. A fast moving mid-tropospheric
More information16C.6 Genesis of Atlantic tropical storms from African Easterly Waves a comparison of two contrasting years
16C.6 Genesis of Atlantic tropical storms from African Easterly Waves a comparison of two contrasting years Susanna Hopsch 1 Department of Earth and Atmospheric Sciences, University at Albany, Albany,
More informationDiabatic processes modifying potential vorticity in a North Atlantic cyclone
Quarterly Journal of the Royal Meteorological Society Q. J. R. Meteorol. Soc. 139: 17 1, July 13 A Diabatic processes modifying potential vorticity in a North Atlantic cyclone J. M. Chagnon,* S. L. Gray
More information14A.3 POTENTIAL VORTICITY AS A TOOL FOR ASSESSING DYNAMICAL IMPACTS OF LATENT HEAT RELEASE IN MODEL FORECASTS
14A.3 POTENTIAL VORTICITY AS A TOOL FOR ASSESSING DYNAMICAL IMPACTS OF LATENT HEAT RELEASE IN MODEL FORECASTS Michael J.Brennan*, Gary M. Lackmann, and Kelly M. Mahoney North Carolina State University,
More information