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Improving model-satellite comparisons of sea ice melt onset with a satellite...
Seasonal transitions in Arctic sea ice, such as the melt onset, have been found to be useful metrics for evaluating sea ice in climate models against observations. However,...- publication PDF
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Concurrent effect of Alfvén waves and planar magnetic structure on geomagnetic storms
Generally, interplanetary coronal mass ejection (ICME) triggers intense and strong geomagnetic storms. It has been established that the ICME sheath-moulded planar magnetic...- publication PDF
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Impact of topography on black carbon transport to the southern Tibetan...
Most previous modeling studies about black carbon (BC) transport and its impact over the Tibetan Plateau (TP) conducted simulations with horizontal resolutions coarser than 20...- publication PDF
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Worldwide maize and soybean yield response to environmental and management...
A land process model, Integrated Science Assessment Model, is extended to simulate contemporary soybean and maize crop yields accurately and changes in yields over the period...- publication PDF
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Effects of global irrigation on the near-surface climate
Irrigation delivers about 2,600 km³ of water to the land surface each year, or about 2% of annual precipitation over land. We investigated how this redistribution of water...- publication PDF
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Atmospheric forcing of Fram Strait sea ice export: A closer look
Fram Strait is the primary region of sea ice export from the Arctic and therefore plays an important role in regulating the amount of sea ice and freshwater within the Arctic....- publication PDF
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Comparison of Effective Radiative Forcing Calculations Using Multiple...
We compare six methods of estimating effective radiative forcing (ERF) using a set of atmosphere-ocean general circulation models. This is the first multiforcing agent,...- publication PDF
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Sensitivity of axisymmetric tropical cyclone spinup time to dry air aloft
The sensitivity of tropical cyclone spinup time to the initial entropy deficit of the troposphere is examined in an axisymmetric hurricane model. Larger initial entropy deficits...- publication PDF
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The kinematic and microphysical characteristics and associated precipitation...
Dual-Doppler, polarimetric radar observations and precipitation efficiency (PE) calculations are used to analyze subtropical heavy rainfall events that occurred in southern...- publication PDF
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A new ocean state after nuclear war
Nuclear war would produce dire global consequences for humans and our environment. We simulated climate impacts of US-Russia and India-Pakistan nuclear wars in an Earth System...- publication PDF
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Global Analyses From ECMWF and Atlas of 1000 to 10 Mb Circulation Statistics
This report describes the European Centre for Medium Range Weather Forecasts (ECMWF) global analyses available to NCAR. Several data sets are available with differing...- publication PDF
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Estimating atmospheric boundary layer depth using COSMIC radio occultation data
This study presents an algorithm for estimating atmospheric boundary layer (ABL) depth from Global Positioning System (GPS) radio occultation (RO) data. The algorithm is applied...- publication PDF
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Impact of intercontinental pollution transport on North American ozone air...
The recent update on the US National Ambient Air Quality Standards (NAAQS) of the ground-level ozone (O-3 / can benefit from a better understanding of its source contributions...- publication PDF
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Improvement of microphysical parameterization through observational...
Despite continual increases in numerical model resolution and significant improvements in the forecasting of many meteorological parameters, progress in quantitative...- publication PDF
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User's Guide to NCAR CCM3
This document is the User's Guide to version 3 of the NCAR Community Climate Model, denoted CCM3. It is a companion document to Description of the NCAR Community Climate Model...- publication PDF
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Atmospheric wake of Madeira: First aerial observations and numerical simulations
The island of Madeira is well known for giving rise to atmospheric wakes. Strong and unsteady atmospheric wakes, resembling a von Kármán vortex street, are frequently observed...- publication PDF
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Transition from global to local control of dayside reconnection from...
We have conducted a series of controlled numerical simulations to investigate the response of dayside reconnection to idealized, ionosphere-sourced mass loading processes to...- publication PDF
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Does ENSO regularity increase in a warming climate?
The impact of a warming climate on El Nino-Southern Oscillation (ENSO) is investigated in large-ensemble simulations of the Community Earth System Model (CESM1). These...- publication PDF
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Process-oriented MJO simulation diagnostic: Moisture sensitivity of...
Process-oriented diagnostics for Madden–Julian oscillation (MJO) simulations are being developed to facilitate improvements in the representation of the MJO in weather and...- publication PDF
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Modeling precipitation δ18O variability in East Asia since the Last Glacial...
Water isotopes in precipitation have played a key role in the reconstruction of past climate on millennial timescales and longer. However, for midlatitude regions like East Asia...- publication PDF
