12,056 resources found

Six medium-scale gravity waves (GWs) with horizontal wavelengths of λH=60 - 160 km were detected on four nights by Taylor et al. (2009) in the OH airglow layer near Brasilia,...

The papers contained in the 1976 Technical Note NCAR/TN-119+PROC represent the research and programming carried out / 12 students in the Computing Facility summer programs...

A prominent Saharan Air Layer (SAL) was detected over the Northern Atlantic from the West African Coast to the Caribbean Sea in 2007. Data was collected from the Aerosols and...

Oxidation of reactive carbon fuels climate- and pollution-relevant chemistry. Deciduous forests are important sources of reactive carbon (particularly isoprene). Organization in...

This study demonstrates the close connection between the second dominant mode of spring sea surface temperature anomalies (SSTAs) in the North Pacific poleward of 20°N,...

While tropical cyclone (TC) prediction, in particular TC genesis, remains very challenging, accurate prediction of TCs is critical for timely preparedness and mitigation. Using...

Droughts can have severe ecological, social, and economic impacts. Some impacts are particularly severe if droughts last longer than 1 year and water stores are not fully...

To study the meteorology and chemistry that is associated with the early stages of the North American Monsoon, the Weather Research and Forecasting model coupled with Chemistry...

The quality of convective-scale ensemble forecasts, initialized from analysis ensembles obtained through the assimilation of radar observations using an ensemble Kalman filter...

Spectral width of the cloud droplet spectrum is important for radiative properties and drizzle/rain development in warm ice-free clouds. We use an adiabatic rising parcel model...

Research over the past decade has demonstrated that dynamical forecast systems can skillfully predict panArctic sea ice extent (SIE) on the seasonal time scale; however, there...

Atmospheric black carbon (BC) absorbs solar radiation, and exacerbates global warming through exerting positive radiative forcing (RF). However, the contribution of BC to...

Nonlinear force-free extrapolations are a common approach to estimate the 3D topology of coronal magnetic fields based on photospheric vector magnetograms. The force-free...

The ionosphere equatorial ionization anomaly (EIA) is usually characterized by two plasma density maxima in the Earth's equatorial region. Merged EIA (MEIA) is a unique...

Managing soils to increase organic carbon storage presents a potential opportunity to mitigate and adapt to global change challenges, while providing numerous co‐benefits...

In this study, field-aligned currents (FACs) obtained from the Active Magnetosphere and Planetary Electrodynamics Response Experiment data set have been used to specify the...

Atmospheric rivers (ARs), referring to long and narrow filamentary bands of intense water vapor transport in the atmosphere, can cause extreme precipitation, floods, and drought...

The coronal magnetic field is the primary driver of solar dynamic events. Linear and circular polarization signals of certain infrared coronal emission lines contain information...

The approximately century-long instrumental record of precipitation over land reflects a single sampling of internal variability. Thus, the spatiotemporal evolution of the...

Measurements of organic carbon compounds in both the gas and particle phases made upwind, over and downwind of North America are synthesized to examine the total observed...