11,883 resources found

Subseasonal surface wind variability strongly impacts the annual mean and subseasonal turbulent atmospheric surface fluxes. However, the impacts of subseasonal wind variability...

This study reports on the evolution of particle size distributions (PSDs) and habits as measured during slow, Lagrangian-type spiral descents through deep subtropical and...

An unusually isolated storm that had had a relatively constant intensity for at least an hour travelled into the NHRE observing network on June 13, 1974, and dissipated therein....

A large-eddy simulation (LES) framework with an "eddy injection'' technique has been developed that ensures a majority of turbulent kinetic energy in numerically simulated...

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In this paper we continue the community-wide rigorous modern space weather model validation efforts carried out within GEM, CEDAR and SHINE programs. In this particular effort,...

The modeling of ice sheets in Earth system models (ESMs) is an active area of research with applications to future sea level rise projections and paleoclimate studies. A major...

The Ion Velocity Meter instrument on the Ionospheric Connection Explorer (ICON) satellite measured large depletions in the O+ density (but not H+) in the post-midnight topside...

CloudSat observed tropical liquid and ice water content (L/IWC, Version 4) profiles are compared with GEOS5 analyses, NCAR-CAM3, and GFDL-AM2 simulations. Both the analyses and...

We present examples of high-latitude field-aligned current (FAC) and toroidal magnetic potential patterns in both hemispheres reconstructed at a 2-min cadence using an updated...

Variations of nighttime F-2 peak height (h(m)F(2)) over the American sector during the 28-29 October 2003 storm period were investigated using the National Center for...

The ozonesonde observations in Hanoi, Vietnam, over 14 years since 2004, have confirmed an enhancement in lower tropospheric ozone concentration at about 3 km altitude in the...

River herring-a collective name for the Alewife Alosa pseudoharengus and Blueback Herring A. aestivalis-play a crucial role in freshwater and marine ecosystems along the Eastern...

In May 2014 a team of atmospheric and geodetic scientists from UNAVCO and the University Corporation for Atmospheric Research (UCAR) sent and helped set up a global positioning...

For 15 years, the Undergraduate Leadership Workshop (ULW) has connected undergraduate students with scientists, engineers, educators, and leadership at the National Center for...

To better characterize anthropogenic emission-relevant aerosol species, the Gridpoint Statistical Interpolation (GSI) and Weather Research and Forecasting with Chemistry...

A multifluid version of the Lyon-Fedder-Mobarry global simulation model has been used to investigate the effects of outflowing ionospheric O⁺ on the magnetosphere-ionosphere...

This study addresses a long-standing scientific puzzle regarding ionospheric F-2 region dynamics. Incoherent scatter radar observations of F-2 region plasma drifts showed a...

This study applies a sensitivity analysis (SA) technique (the Morris method, MM) to an automated Lagrangian tropical cyclone (TC) tracking algorithm used on gridded climate...

The damage potential of a hurricane is widely considered to depend more strongly on an integrated measure of the hurricane wind field, such as integrated kinetic energy (IKE),...