The question of whether ocean coupling matters for the extratropical Northern Hemisphere atmospheric response to projected late 21st century Arctic sea ice loss is addressed using a series of experiments with Community Climate System Model version 4 at 1 degrees spatial resolution under different configurations of the ocean model component: no interactive ocean, thermodynamic slab ocean, and full-depth (dynamic plus thermodynamic) ocean. Ocean-atmosphere coupling magnifies the response to Arctic sea ice loss but does not change its overall structure; however, a slab ocean is inadequate for inferring the role of oceanic feedbacks. The westerly winds along the poleward flank of the eddy-driven jet weaken in response to Arctic sea ice loss, accompanied by a smaller-magnitude strengthening on the equatorward side, with largest amplitudes in winter. Dynamical and thermodynamic oceanic feedbacks amplify this response by approximately 50%. Air temperature, precipitation, and sea level pressure responses also show sensitivity to the degree of ocean coupling.
Few if any high-resolution (annually resolved) paleoclimate records are available for the Hawaiian Islands prior to; similar to 1850 CE, after which s...
2016 | Journal of Atmospheric and Oceanic Technology, 33(3), 579-595.
Description:
This study consists of two parts. The first part describes the way in which vertical air motions and raindrop size distributions (DSDs) were retrieved...
The analysis produced by the ensemble Kalman filter (EnKF) may be dynamically inconsistent and contain unbalanced gravity waves that are absent in the...
2016 | Journal of the Atmospheric Sciences, 73(2), 467-486.
Description:
Hurricane Irene (2011) moved northward along the eastern coast of the United States and was expected to cause severe wind and flood damage. However, t...
The semiarid U.S. Great Plains is prone to severe droughts having major consequences for agricultural production, livestock health, and river navigati...
This study documents a very rapid increase in convective instability, vertical wind shear, and mesoscale forcing for ascent leading to the formation o...
Carbon dioxide emissions from electricity generation are a major cause of anthropogenic climate change. The deployment of wind and solar power reduces...
Forced atmospheric teleconnections during 1979-2014 are examined using a 50-member ensemble of atmospheric general circulation model (AGCM) simulation...
Stratospheric ozone depletion plays a major role in driving climate change in the Southern Hemisphere. To date, many climate models prescribe the stra...
The land surface model (LSM) described in this manuscript was originally developed as part of the NOAA Rapid Update Cycle (RUC) model development effo...
Ensemble postprocessing is frequently applied to correct biases and deficiencies in the spread of ensemble forecasts. Methods involving weighted, regr...
Noise interferometry is the process by which approximations to acoustic Green's functions, which describe sound propagation between two locations, are...
The structural evolution of the inner core and near environment throughout the life cycle of Hurricane Edouard (2014) is examined using a synthesis of...
The Pacific decadal oscillation (PDO), the dominant year-round pattern of monthly North Pacific sea surface temperature (SST) variability, is an impor...
2016 | Bulletin of the American Meteorological Society, 97(8), 1427-+.
Description:
With a goal of improving operational numerical weather prediction (NWP), the Developmental Testbed Center (DTC) has been working with operational cent...
The Rapid Refresh (RAP), an hourly updated assimilation and model forecast system, replaced the Rapid Update Cycle (RUC) as an operational regional an...
2017 | International Journal of Climatology, 37(1), 197-203.
Description:
Contrary to the above title, a more typical question might be ‘How does climate variability and change impact atolls (and associated ecosystems and ...
2016 | Journal of the Atmospheric Sciences, 73(6), 2361-2384.
Description:
The intrusion of lower-stratospheric extratropical potential vorticity into the tropical upper troposphere in the weeks surrounding the occurrence of ...
2016 | Journal of Hydrometeorology, 17(7), 1905-1914.
Description:
The upper Sacramento River watershed is vital to California's water supply and is susceptible to major floods. Orographic precipitation in this comple...
The role of transient Arctic sea ice loss in the projected greenhouse gas-induced late-twentieth- to late-twenty-first-century climate change is inves...
2020 | Geophysical Research Letters, 47, e2019GL085788.
Description:
Coupled ocean-atmosphere models have been utilized to investigate the global climate response to polar sea ice loss using different approaches to cons...
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