9,960 resources found

El Niño and La Niña are not a simple mirror image, but exhibit significant differences in their spatial structure and seasonal evolution. In particular, sea surface temperature...

Sudden stratospheric warmings (SSW) are large-scale disruptions of the wintertime state of the stratosphere that can affect the circulation at synoptic and global scales,...

Estimates of CO sources derived from inversions using satellite observations still exhibit discrepancies. Here, we conduct controlled inverse analyses to elucidate the influence...

This study examines the structure and dynamics of Typhoon Hagupit’s (2008) principal rainband using airborne radar and dropsonde observations. The convection in Hagupit’s...

Hillslopes are important for converting rainfall into runoff, influencing the terrestrial dynamics of the Earth's climate system. Recently, we developed a hybrid-3-D (h3D)...

Summer climate in the North Atlantic - European sector possesses a principal pattern of year-to-year variability that is the parallel to the well-known North Atlantic...

Estimates of the global influx of cosmic dust are highly uncertain, ranging from 0.4-110 t/d. All meteoric debris that enters the Earth's atmosphere is eventually transported to...

The global configuration of the geomagnetic field shows that the maximum east-west difference in geomagnetic declination of northern middle latitude lies in the US region...

Between 15 and 17 March 2010, a workshop was held at Princeton University entitled 'Meeting a Grand Challenge to Hydrology: The Global Monitoring of Earth's Terrestrial Water'....

This study is based on model results from TF HTAP (Task Force on Hemispheric Transport of Air Pollution) phase II, in which a set of source receptor model experiments have been...

Estimates of the anthropogenic effective radiative forcing (ERF) trend have increased by 50% since 2000 (from +0.4 W m(-2) decade(-1) in 2000-09 to +0.6 W m(-2) decade(-1) in...

A stochastic parameter perturbation (SPP) scheme consisting of spatially and temporally varying perturbations of uncertain parameters in the Grell-Freitas convective scheme and...

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Improving the seasonal prediction of tropical cyclone (TC) activity demands a robust analysis of the prediction skill and the inherent predictability of TC activity. Using the...

Operational forecasting of tropical cyclone (TC) genesis has improved in recent years but still can be a challenge. Output from global numerical models continues to serve as a...

The regional distributions of black carbon aerosol ( soot) are calculated and the impacts of black carbon aerosol on photolysis frequencies and ozone concentrations are...

An object-based technique was utilized to identify hydrometeor size-sorting signatures at lower levels in the convective regions of 10 mesoscale convective systems (MCSs) during...

State-of-the-art ensemble prediction systems usually provide ensembles with only 20-250 members for estimating the uncertainty of the forecast and its spatial and spatiotemporal...

Seasonal variations of geomagnetic activity during the declining phase of solar cycle 23 (SC23-D, 2002-2007) have been studied using auroral hemispheric power (HP), solar wind...

In the Southern Hemisphere, a relatively well-known preferential pathway along which cold air surges equatorward is situated to the east of the Andes Mountains. In this study, a...