Monthly Weather Review: Recent submissions
Now showing items 861-880 of 39179
-
Quantification and Exploration of Diurnal Oscillations in Tropical Cyclones
(American Meteorological Society, 2019)AbstractDiurnal oscillations of infrared cloud-top brightness temperatures (Tbs) in tropical cyclones (TCs) as inferred from storm-centered, direction-relative longwave infrared (~11 ?m) imagery are quantified for Northern ... -
Covariance of Optimal Parameters of an Arctic Sea Ice–Ocean Model
(American Meteorological Society, 2019)AbstractThe uniqueness of optimal parameter sets of an Arctic sea ice simulation is investigated. A set of parameter optimization experiments is performed using an automatic parameter optimization system, which simultaneously ... -
The Unexpected Rapid Intensification of Tropical Cyclones in Moderate Vertical Wind Shear. Part III: Outflow–Environment Interaction
(American Meteorological Society, 2019)AbstractInteractions between the upper-level outflow of a sheared, rapidly intensifying tropical cyclone (TC) and the background environmental flow in an idealized model are presented. The most important finding is that ... -
Atmospheric Processes and Climatological Characteristics of the 79N Glacier (Northeast Greenland)
(American Meteorological Society, 2019)AbstractThe Nioghalvfjerdsfjorden glacier (the 79 fjord, henceforth referred to as 79N) has been thinning and accelerating since the early 2000s, as a result of calving episodes at the front of the glacier. As 8% of the ... -
Large-Scale Flow Patterns Associated with Extreme Precipitation and Atmospheric Rivers over Norway
(American Meteorological Society, 2019)AbstractA climatology of extreme cold season precipitation events in Norway from 1979 to 2014 is presented, based on the 99th percentile of the 24-h accumulated precipitation. Three regions, termed north, west, and south ... -
Simultaneous Parameter Optimization of an Arctic Sea Ice–Ocean Model by a Genetic Algorithm
(American Meteorological Society, 2019)AbstractImprovement and optimization of numerical sea ice models are of great relevance for understanding the role of sea ice in the climate system. They are also a prerequisite for meaningful prediction. To improve the ... -
Precipitation Enhancement via the Interplay between Atmospheric Rivers and Cutoff Lows
(American Meteorological Society, 2019)AbstractA significant enhancement of precipitation can result from the interplay between two independent, large-scale phenomena: an atmospheric river (AR) and a cutoff low. An AR is a long, narrow region with a deep moist ... -
Downslope Winds and Dust Storms in the Salton Basin
(American Meteorological Society, 2019)AbstractThe Salton basin is a closed, subsea level basin located in extreme southeastern California. At the center of the basin lies the Salton Sea, the state?s largest inland lake, which is surrounded by a desert landscape ... -
Ray Curvature on a Flat Earth for Computing Virtual WSR-88D Signatures of Simulated Supercell Storms
(American Meteorological Society, 2019)AbstractTwo accepted postulates for applications of ground-based weather radars are that Earth?s surface is a perfect sphere and that all the rays launched at low-elevation angles have the same constant small curvature. ... -
Impacts of Targeted AERI and Doppler Lidar Wind Retrievals on Short-Term Forecasts of the Initiation and Early Evolution of Thunderstorms
(American Meteorological Society, 2019)AbstractThe ability of Atmospheric Emitted Radiance Interferometer (AERI) and Doppler lidar (DL) wind profile observations to impact short-term forecasts of convection is explored by assimilating retrievals into a partially ... -
Analysis of Large-Scale Dynamics and Gravity Waves under Shedding of Inactive Flow Components
(American Meteorological Society, 2019)AbstractThe Ertel?s potential vorticity (EPV) budget equation does not see the contribution of an inactive EPV flux component ?? ? ?B because it drops out when taking the divergence. A part of the actual EPV flux can always ... -
Adjoint Sensitivity of North Pacific Atmospheric River Forecasts
(American Meteorological Society, 2019)AbstractThe initial-state sensitivity and optimal perturbation growth for 24- and 36-h forecasts of low-level kinetic energy and precipitation over California during a series of atmospheric river (AR) events that took place ... -
Repeated Eyewall Replacement Cycles in Hurricane Frances (2004)
(American Meteorological Society, 2019)AbstractHurricane Frances (2004) represented an unusual event that produced three consecutive overlapping eyewall replacement cycles (ERCs). Their evolution followed some aspects of the typical ERC. The strong primary ... -
Characteristics of Intense Convection in Subtropical South America as Influenced by El Niño–Southern Oscillation
(American Meteorological Society, 2019)AbstractEl Niño?Southern Oscillation (ENSO) is known to have teleconnections to atmospheric circulations and weather patterns around the world. Previous studies have examined connections between ENSO and rainfall in tropical ... -
Examining the Predictability of the Successive MJO Events of November 2011 Using Coupled 30-Day NAVGEM and COAMPS Simulations
(American Meteorological Society, 2019)AbstractGiven the prohibitive expense of running a global coupled high-resolution model for multiweek forecasts, we explore the feasibility of running a limited-area model forced by a global model on monthly time scales. ... -
Tornadogenesis and Early Tornado Evolution in the El Reno, Oklahoma, Supercell on 31 May 2013
(American Meteorological Society, 2019)AbstractThis study documents the formation and part of the early evolution of a large, violent tornado near El Reno, Oklahoma, based on data from a mobile, polarimetric, rapid scan, X-band, Doppler radar. The main circulation ... -
Spectral Empirical Orthogonal Function Analysis of Weather and Climate Data
(American Meteorological Society, 2019)AbstractWe apply spectral empirical orthogonal function (SEOF) analysis to educe climate patterns as dominant spatiotemporal modes of variability from reanalysis data. SEOF is a frequency-domain variant of standard empirical ... -
Troposphere–Stratosphere Coupling Following Tropospheric Blocking and Extratropical Cyclones
(American Meteorological Society, 2019)AbstractA climatology of the 100- and 250-hPa 45°?75°N zonal-mean meridional eddy heat flux anomaly, hereafter heat flux anomaly, was created to examine its variability following cool-season (i.e., October?April) blocks ... -
Hybrid Mass Coordinate in WRF-ARW and Its Impact on Upper-Level Turbulence Forecasting
(American Meteorological Society, 2019)AbstractAlthough a terrain-following vertical coordinate is well suited for the application of surface boundary conditions, it is well known that the influences of the terrain on the coordinate surfaces can contribute to ... -
Understanding the Unusual Looping Track of Hurricane Joaquin (2015) and Its Forecast Errors
(American Meteorological Society, 2019)AbstractHurricane Joaquin (2015) took a climatologically unusual track southwestward into the Bahamas before recurving sharply out to sea. Several operational forecast models, including the National Centers for Environmental ...