11,883 resources found

The predictability of coastal ocean circulation over the central Oregon shelf, a region of strong wind-driven currents and variable topography, is studied using ensembles of...

The coupled dynamics of turbulent airflow and a spectrum of waves are known to modify air-sea momentum and scalar fluxes. Waves traveling at oblique angles to the wind are...

A coupled weather-aerosol model is used to study the effect of biomass burning aerosols on deep convection over the Borneo Island and surrounding oceans. Simulations are...

Electrical impedance tomography (EIT) is a noninvasive imaging modality, where imperceptible currents are applied to the skin and the resulting surface voltages are measured. It...

This guide is the second in a series of user guides entitled Introduction to the NCAR Scientific Computing Division. Its purpose is to prepare you for your visit to NCAR and to...

Measurements from the Solar Occultation For Ice Experiment (SOFIE) in both hemispheres are used to characterize meteoric smoke in the mesosphere and to estimate the meteoric...

The finite-volume transport scheme of Miura, for icosahedral-hexagonal meshes on the sphere, is extended by using higher-order reconstructions of the transported scalar within...

Background error modeling plays a key role in a variational data assimilation system. The National Meteorological Center (NMC) method has been widely used in variational data...

A thermospheric O and N-2 column density ratio (Sigma O/N-2) depletion with long-duration (>16 hr) was observed by the Global-scale Observations of the Limb and Disk at the...

This report describes the development of a coupled model and the evaluation of the influence of that coupling by way of an investigation of heterogeneous surface forcing on...

This paper outlines the necessity for the availability, accessibility, and expansion of atomic physics data and analysis tools for the meaningful interpretation of spectroscopic...

This paper reports the metrics-based results of the Dst index part of the 2008-2009 GEM Metrics Challenge. The 2008-2009 GEM Metrics Challenge asked modelers to submit results...

Interannual variations in marine net primary production (NPP) contribute to the variability of available living marine resources, as well as influence critical carbon cycle...

A test procedure is proposed for identifying numerically significant solution changes in evolution equations used in atmospheric models. The test issues a "fail" signal when any...

Helicity is a quadratic invariant of the Euler equation in three dimensions. As the energy, when present helicity cascades to smaller scales where it dissipates. However, the...

Projecting biogeochemical responses to global environmental change requires multi-scaled perspectives that consider organismal diversity, ecosystem processes, and global fluxes....

Parameterization of the unresolved vertical transport in the planetary boundary layer (PBL) is one of the key physics algorithms in atmospheric models. This study attempts to...

The first-principles, time-dependent Thermosphere-Ionosphere Nested Grid (TING) Model has been run automatically in real time to support the Upper Atmospheric Research...

An analysis of two days of in situ observations of ice particle size spectra, in convectively generated cirrus, obtained during NASA's Tropical Composition, Cloud, and Climate...

It is clear that the solar corona is being heated and that coronal magnetic fields undergo reconnection all the time. Here we attempt to show that these two facts are...