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Now showing items 61-70 of 143
Global Analysis of Characteristics of Tropical Easterly Waves and Related Precipitation
(2021-12-17)
Tropical easterly waves (TEWs) are important components of tropical convection and precipitation, especially in summer months. The most well-documented TEWs are African easterly waves (AEWs), which have been linked with ...
Examining Meteorological Benefits of Rapid-Scan, Dual-Polarization, All-Digital Phased Array Radar Observations for Detecting Tornado Formation and Intensification
(2022-08-04)
Phased array radar (PAR) is widely considered the future for a replacement to the current operational radar network, NEXRAD. In particular, an all-digital operational PAR network offers a range of benefits including adaptive ...
Observing system simulation experiment studies on the use of small UAV for boundary-layer sampling
(2018)
A long-desired component to the U.S. operational observing systems is the capability to measure vertical profiles of wind, temperature and moisture in the lower troposphere at high spatial and temporal resolution. This ...
Observations of Tropical Cyclone Vortex Rossby Waves and Their Role in Inner Core Rainbands
(2016-08-12)
Vortex Rossby Waves (VRWs) are hypothesized to exist in tropical cyclones (TCs), acting as an axisymmetrizing mechanism to the inner core TC flow and restored by the radial gradient of storm vorticity. In addition, they ...
Synoptic and Mesoscale Analysis of the 2015 Southern Great Plains Flash Pluvial
(2019-08)
During May and June of 2015, the Southern Great Plains (SGP) of the United States experienced numerous heavy rainfall and flooding events. The immense amount of rainfall (in excess of 80 cm) over a short period had tremendous ...
A 13-year Trajectory-Based Analysis of Convection-Driven Changes in Upper Troposphere Lower Stratosphere Composition over the United States
(2020-12-18)
Moist convection frequently reaches the tropopause and alters the distribution and concentration of radiatively important trace gases in the upper troposphere and lower stratosphere (UTLS), but the overall impact of ...
A Multidimensional Analysis of an Anomalous, High-Impact, Early-Season Ice Storm in Oklahoma
(2022-08)
Between 26 to 28 October 2020, an anomalous, high-impact, and early-season ice storm affected much of Oklahoma. This was the first time the National Weather Service (NWS) Forecast Offices in both Norman and Tulsa had issued ...
The Stratiform Radiation Effect on Tropical Organized Deep Convection
(2023-12-15)
Idealized studies of self-aggregation have implicated the importance of longwave (LW) cloud-radiative forcing (CRF) in facilitating the upscale development of moist convection. While different cloud structures are known ...
Radar and Thermodynamic Analysis of the 6 April 2018 Monroe, LA Tornadic Supercell
(2022-05)
This case study analyzes a tornadic supercell observed in northeast Louisiana as part of
the Verification of the Origins of Rotation in Tornadoes Experiment Southeast (VORTEX-SE)
on April 6—7 2018. Two mobile research ...
Assessing the Utility of Low-Level Buoyancy and CopterSonde Measurements to Understand Atmospheric Boundary Layer Transitions
(2021-12-17)
Advancements in remotely piloted aircraft systems (RPAS) introduced a new way to observe the atmospheric boundary layer (ABL). Adequate sampling of the lower atmosphere is key to improving numerical weather models and ...