12 056 resources found

The report on the Central Pacific VLF Signal Survey and Omega Wind Error Predictions is a preliminary document based on the theoretical predictions of Omega signal strengths and...

The geospace environment is controlled largely by events on the Sun, such as solar flares and coronal mass ejections, which generate significant geomagnetic and upper...

We validate Aura Microwave Limb Sounder (MLS) version 3 (v3) and version 4 (v4) retrievals of summertime temperature, water vapour and ozone in the upper troposphere and...

This paper presents a validation of a method to derive the vertical profile of carbon monoxide (CO) from its total column using data assimilation. We choose version 3 of MOPITT...

Climate change can influence populations of monogamous species by affecting pair‐bond dynamics. This study examined the impact of climate on widowhood and divorce, and the...

This study examines the seasonal variation of the double tropopause (DT) using data from the High Resolution Dynamics Limb Sounder. The combination of high data density and high...

This report describes the European Centre for Medium Range Weather Forecasts (ECMWF) global analyses available to NCAR. Several data sets are available with differing...

Recent projections of climatic change have focused a great deal of scientific and public attention on patterns of carbon (C) cycling as well as its controls, particularly the...

Calculations of the aerosol direct effect on climate rely on simulated aerosol fields. The model representation of aerosol mixing state potentially introduces large...

On 19-21 July 2016, the National Aeronautics and Space Administration (NASA) Ames Research Center and the National Center for Atmospheric Research (NCAR) organized and...

We analyze in detail the penumbral structure found in a recent radiative magnetohydrodynamic simulation. Near Τ = 1, the simulation produces penumbral fine structure consistent...

Satellite and incoherent scatter radar observations have shown frequently a strong enhancement of upward vertical E x B drifts in the equatorial ionospheric F region near...

Using multiple lines of evidence, we estimated the mortality of oceanic sea turtles that were minimally to moderately oiled by the 2010 BP Deepwater Horizon (DWH) oil spill in...

Cloud droplet number concentration (N-d) is a key microphysical property that is largely controlled by the balance between sources and sinks of aerosols that serve as cloud...

In the past few years, the ALMA radio telescope has become available for solar observations. ALMA diagnostics of the solar atmosphere are of high interest because of the...

Stratospheric aerosol injection (SAI) and marine cloud brightening (MCB) are two proposed methods of compensating for greenhouse gas‐induced warming by reflecting incoming...

The sixth Coupled Model Intercomparison Project (CMIP6) constitutes the latest update on expected future climate change based on a new generation of climate models. To extract...

We examine spectra of the Ca II H line, obtained under good seeing conditions with the VTT Echelle Spectrograph in 2007 June, and higher resolution data of the Ca II λ8542 line...

Secondary organic aerosols (SOA) are formed from oxidation of hundreds of volatile organic compounds (VOCs) emitted from anthropogenic and natural sources. Accurate predictions...

Wildfires are an important source of carbonaceous aerosol in the atmosphere. Organic aerosol that absorbs light in the ultraviolet to visible spectral range is referred to as...