12.056 resources found

In this work, an attempt is made to systematically evaluate the effect of convective scale downdrafts on the model-simulated rainfall, in both aqua- and actual-planet...

Remaining carbon budget specifies the cap on global cumulative CO(2)emissions from the present-day onwards that would be in line with limiting global warming to a specific...

Low-altitude radar reflectivity measurements of tornadoes sometimes reveal a donut-shaped signature (low-reflectivity eye surrounded by a high-reflectivity annulus) and at other...

Hybrid variational ensemble data assimilation (hybrid DA) is widely used in research and operational systems, and it is considered the current state of the art for the...

The global positioning system (GPS) radio occultation (RO) technique has demonstrated the ability to precisely probe earth's atmosphere globally with high vertical resolution....

The microphysical processes that lead to the development of precipitation in small, warm cumulus are examined using data from the Small Cumulus Microphysics Study near Cape...

The use of probabilistic forecasts is necessary to take into account uncertainties and allow for optimal risk-based decisions in streamflow forecasting at monthly to seasonal...

The purpose of this technical note is to describe and demonstrate the capabilities of a processor (VERIFY) developed to verify objectively forecasts generated by the PSU/NCAR...

We present results from the Intercontinental Chemical Transport Experiment - Phase B (INTEX-B) aircraft mission conducted in spring 2006. By analyzing the mixing ratios of...

Extreme pyrocumulonimbus (pyroCb) blowups that pollute the stratosphere have been documented on at least five occasions. However, the frequency of these events is still...

Data from an airborne vertically pointing millimeter-wave Doppler radar are used to study the cloud microphysical effect of glaciogenic seeding of cold-season orographic clouds....

Current automated aviation turbulence forecast algorithms diagnose turbulence from numerical weather prediction (NWP) model output by identifying large values in computed...

To assess the climate impacts of historical and projected land cover change in the Community Climate System Model, version 4 (CCSM4), new time series of transient Community Land...

In response to a joint request from the World Climate Research Program's Climate and Cryosphere Project, the International Arctic Science Committee, and the Arctic Council's...

The World Meteorological Organization’s Lead Centre for Annual-to-Decadal Climate Prediction issues operational forecasts annually as guidance for regional climate...

The Madden Julian Oscillation (MJO) is a prominent mode of intraseasonal (~35-95 day) variability in the tropical Indian and western Pacific Oceans. Its impacts on ocean mixed-...

Geoengineering methods could potentially offset aspects of greenhouse gas-driven climate change. However, before embarking on any such strategy, a comprehensive understanding of...

Over the past three years, the U.S. National Science Foundation National Center for Atmospheric Research (NSF NCAR) has been exploring the concept of NSF NCAR Earth System...

Storm surge impact depends on coastal geographical and bathymetric features as well as various tropical cyclone characteristics including the size, intensity, and impact angle...

We report on six continuous hours of OH airglow imager observations (at z ∼ 87 km) of convectively generated gravity waves (GWs) near Fort Collins, Colorado, on the evening of...