11 883 resources found

Fourteen research flights were conducted with the National Center for Atmospheric Research (NCAR) C-130 near Christmas Island (2° N, 157° W) during the summer of 2007 as part of...

In this study, a lightning data assimilation method based on the time-lagged ensembles for predicting severe convection is presented. With the lightning data assimilation...

Coincident ocean drifter position and surface wind time series observed on hourly timescales are used to estimate upper ocean dissipation and atmosphere-ocean coupling...

Sunspot records are the only observational tracer of solar activity that provides a fundamental, multicentury reference. Its homogeneity has been largely maintained with a...

Convective snowbands moved slowly over Wyoming and northern Colorado on 16-17 February 2007 and produced up to 71 mm (2.8 in.) of snow that was unpredicted by operational...

This manual represents the first release of the NCAR Graphics Installer's Guide. It is for use with version 2.00 of NCAR Graphics. The material in this manual is intended to be...

The potential ability of an ensemble prediction system (EPS) to represent its own varying forecast error provides strong motivation to produce an EPS over a less expensive...

This report describes work completed on the National Aeronautics and Space Administration (NASA) project, "Intercomparison of Satellite-Based Global Data Sets with Global...

The presence of light-absorbing aerosol particles deposited on arctic snow and sea ice influences the surface albedo, causing greater shortwave absorption, warming, and loss of...

We have examined changes in climate which result from the sudden termination of geoengineering after 50 years of offsetting a 1% per annum increase in CO₂ concentrations by a...

It is open whether El Niño-Southern Oscillation (ENSO) varies under climate change and how potential changes in the marine system are detectable. Here differences in the...

Seasonal water storage fluctuations are critical for evaluating water scarcity linked to climate forcing and human intervention. Here we compare seasonal changes in land total...

We investigated the contribution of changes in the Earth's magnetic field to long-term trends in the ionosphere, thermosphere, and solar quiet (Sq) magnetic variation using the...

A large midlatitude cyclone occurred over the central United States from 0000 to 1800 UTC 30 April 2017. During this period, there were more than 1100 reports of moderate-or-...

Using 6 years of Thermosphere Ionosphere Mesosphere Energetics and Dynamics (TIMED) global ultraviolet imager auroral observations in both hemispheres, we have studied the...

Global modeling efforts indicate semiarid regions dominate the increasing trend and interannual variation of net CO₂ exchange with the atmosphere, mainly driven by water...

In this study, we utilized both ground-based and space-borne observations including total electron content (TEC) from Beidou geostationary satellites, two-dimensional TEC maps...

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An analysis of the environmental conditions associated with precipitation fog events is presented using 20 yr of historical observations taken in a region centered on New York,...

Like any fluid heated from below, the atmosphere is subject to vertical instability that triggers convection. Convection occurs on small time and space scales, which makes it a...