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The Variability in Atlantic Ocean Basin Hurricane Occurrence and Intensity as related to ENSO and the North Pacific Oscillation
(National Weather Association, 2000-06)
The investigation of the effect of El Niño-related variability on hurricane activity has been a popular topic of study. Studies have shown that there are fewer Atlantic Ocean basin hurricanes during an El Nino year than ...
A Climatology of Northern Hemisphere Blocking
(American Meteorological Society, 2006-03)
In this paper a 55-yr (1948-2002) Northern Hemisphere blocking climatology is presented. Traditional blocking indices and methodologies are revised and a new blocking detection method is designed. This algorithm detects ...
Analysis of Weather Data Collected From Two Locations in a Small Urban Community
(Missouri Academy of Science, 2006-01)
The heat island effect is a well known feature in the microclimate of urban areas, and is considered to be the difference between the urban area and its surroundings. While this study only employs two instruments, the ...
Assessment of the Impact of the Planetary Scale on the Decay of Blocking and the Use of Phase Diagrams and Enstrophy as a Diagnostic
(Pleiades Publishing, 2007-01)
It was shown that abrupt changes in the large-scale structure of atmospheric flows may lead to the rapid decay of blocking. Analysis of phase diagrams made it possible to identify when sharp changes occurred in the dynamics ...
An analysis of a long-lived MCV observed over the Southern Plains using Potential Vorticity diagnostics.
(National Weather Association, 2000-09)
On the morning of 28 May 1998, a mesoscale convectively-generated vortex (MCV) was
observed over the Southern Plains. This MCV was evident in the GOES-8 visual satellite
imagery resulting in a spectacular picture. An ...
Interannual and interdecadal variability in the predominant Pacific region SST anomaly patterns and their impact on climate in the mid-Mississippi valley region
(Centro Ciencias Atmosfera UNAM, 2007-02)
Previous research has demonstrated that Pacific Region SSTs and SST anomalies can be separated into seven general synoptic classifications (“clusters”) (A-G). Clusters B and G (C, D, and F) [A and E] were shown to be ...
Using the monthly classification of global SSTs and 500 HPA height to predict temperature and precipitation regimes one to two season in advance for the Mid-Mississippi Region
(National Weather Association, 2008-07)
Using the results from previous studies of the interannual variability of local mean monthly temperature and precipitation by this group, long range forecasts were generated for summer and winter season temperatures and ...
The Presentation of Precipitation Information in Television Broadcasts: What is Normal?
(2008)
In a typical weather broadcast, observed precipitation information such as the daily amount that fell and the accumulated monthly total are shown and compared to the mean monthly average or “normal” precipitation. Such ...
Dynamics of Eddy-Driven Low-Frequency Dipole Modes. Part I: A Simple Model of North Atlantic Oscillations
(American Meteorological Society, 2007-01)
A simple theoretical model is proposed to clarify how synoptic-scale waves drive the life cycle of the North Atlantic Oscillation (NAO) with a period of nearly two weeks. This model is able to elucidate what
determines ...
Calculated Height Tendencies in Two Southern Hemisphere Blocking and Cyclone Events: The Contribution of Diabatic Heating to Block Intensification
(American Meteorological Society, 2008-09)
The Zwack-Okossi vorticity tendency equation was used to calculate 500-hPa height tendencies in two intensifying Southern Hemisphere blocking events. The National Centers for Environmental Prediction-
National Center for ...
Dynamics of Eddy-Driven Low-Frequency Dipole Modes. Part II: Free Mode Characteristics of NAO and Diagnostic Study
(American Meteorological Society, 2007-01)
Through calculating the scatter diagrams of the streamfunction ( P or T) versus potential vorticity (PV)(qP or qT), where P and T are the planetary-scale streamfunction and total streamfunction, respectively, and using ...
South American Cold Surges: Types, Composites, and Case Studies
(American Meteorological Society, 2001-05)
This paper examines the climatological, large-scale, and synoptic-scale aspects of South American cold surges using NCEP-NCAR gridded reanalyses for the 1992-96 period. Three common cold surge types are identified on the ...
The Climatology of Blocking Anticyclones for the Northern and Southern Hemispheres: Block Intensity as a Diagnostic
(American Meteorological Society, 2002-12)
A 30-yr climatology of blocking events was compiled by stratifying the data into seasonal and three regional categories for both the Northern and Southern Hemispheres using the NCEP-NCAR reanalyses. Several characteristics ...
The Presentation of Temperature Information in Television Broadcasts: What is Normal?
(National Weather Association, 2003-12)
In a typical weather broadcast, observed daily temperature information such as maximum
and minimum temperatures are shown and compared to the daily average or “normal”. Such information, however, does not accurately ...
Further studies of the heat island associated with a small midwestern city
(Royal Meteorological Society, 2008-09)
Recently, the University of Missouri (UM) moved its SuomiNet station from the roof
of a building near downtown Columbia, Missouri, USA, to the University's rural South Farm. Comparisons of Columbia Regional Airport (KCOU) ...
Interannual Variability of Snowfall Events Southwest Missouri and Snowfall to- Liquid Water Equivalents at the Springfield WFO
(National Weather Association, 2005-12)
In order to address the difficult issue of forecasting snowfall amounts for the general
public, forecasters must be intimately familiar with the climatological behavior of snowfall events, and associated snowfall-to-liquid ...
A Climatology of Northwest Missouri Snowfall Events: Long Term Trends and Interannual Variability.
(V. H. Winston and Son Inc., 2003-01)
The goal of this study was to develop a 50-year statistical climatology of snowfall
occurrences using data from a dense network of cooperative station observations covering
northwest and central Missouri, and these records ...
The Short and Long-term Variability of F2 or Stronger (Significant) Tornadoes in the Central Plains
(Missouri Academy of Science, 2004-08)
An analysis of the interannual and interdecadal variability of significant tornado events that occurred over a four state region in the central plains was performed over a 53 year period (1950 - 2002) using the Storm ...
Ageostrophic Forcing in a Height Tendency Equation
(American Meteorological Society, 2002-01)
The role of the ageostrophic vorticity tendencies in the Zwack-Okossi vorticity tendency equation has been examined within the context that this term in the equation acts as a correction term for the vorticity tendency or ...
The Application of a Simple Method for the Verification of Weather Forecasts and Seasonal Variations in Forecast Accuracy
(American Meteorological Society, 2002-08)
The evaluation of weather forecast accuracy has always been a difficult subject to address for many reasons. In this study, a simple semiobjective method is used to examine the accuracy of zone forecasts issued by the ...