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Impacts of initial estimate and observations availability on...
The ensemble Kalman filter (EnKF) uses an ensemble of short-range forecasts to estimate the flow-dependent background error covariances required in data assimilation. The...- publication PDF
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West coast forecast challenges and development of atmospheric river reconnaissance
Water management and flood control are major challenges in the western United States. They are heavily influenced by atmospheric river (AR) storms that produce both beneficial...- publication PDF
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Atmospheric ice particle shape estimates from polarimetric radar...
A remote sensing approach to retrieve the degree of nonsphericity of ice hydrometeors using scanning polarimetric Ka-band radar measurements from a U.S. Department of Energy...- publication PDF
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Local heating/cooling of the mesosphere due to gravity wave and tidal coupling
Numerical experiments in this study show that the tidal wind may have strong impacts on the stability of the gravity wave and therefore significantly affects the breaking of the...- publication PDF
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Comparison of the past two solar minima from the perspective of the interior...
Solar cycle 23 behaved differently than cycle 22 in many ways. Certain properties, namely the long minimum at the end of cycle 23, weakening of polar fields, shrinking of polar...- publication PDF
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Streamflow Drought Indicators for the Conterminous United States
Streamflow drought refers to a significant decrease in surface water availability and has spatial and temporal characteristics that can occur in every watershed region. Here, we...- publication PDF
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The role of coupled feedbacks in the decadal variability of the Southern...
Recent work has suggested that tropical Pacific decadal variability and external forcings have had a comparable influence on the observed changes in the Southern Hemisphere...- publication PDF
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The Cape Canaveral sea and river breezes: Kinematic structure and convective...
This study examines complex flow patterns associated with the Cape Canaveral sea breeze and sea-breeze front using dual-Doppler radar, sounding, and surface data collected on 26...- publication PDF
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Steadiness of coronal heating
The EUI instrument on the Solar Orbiter spacecraft has obtained the most stable, high-resolution images of the solar corona from its orbit with a perihelion near 0.4 au. A...- publication PDF
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Integrated land ecosystem-atmosphere processes study (iLEAPS) assessment of...
Long-term, continuous observations are needed for Earth system investigations and evaluation of simulations. The atmospheric and ecological communities have independently...- publication PDF
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The NCAR CSM Ocean Model
This technical note documents the ocean component of the NCAR Climate System Model. The ocean code has been developed from the Modular Ocean Model (version 1.1) which was...- publication PDF
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Carbon-concentration and carbon-climate feedbacks in CMIP5 Earth System Models
The magnitude and evolution of parameters that characterize feedbacks in the coupled carbon-climate system are compared across nine Earth system models (ESMs). The analysis is...- publication PDF
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Impact of vertical wind shear on gravity wave propagation in the...
The impact of vertical wind shear on the land-sea-breeze circulation at the equator is explored using idealized 2D numerical simulations and a simple 2D linear analytical model....- publication PDF
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Biogeochemical versus biogeophysical temperature effects of historical...
Anthropogenic land-use change (LUC) substantially impacts climate dynamics, primarily through modifications in the surface biogeophysical (BGP) and biogeochemical (BGC) fluxes,...- publication PDF
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On simplifying 'incremental remap'-type transport schemes
The flux-form incremental remapping transport scheme introduced by Dukowicz and Baumgardner converts the transport problem into a remapping problem. This involves identifying...- publication PDF
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A bird's-eye view: Development of an operational ARM unmanned aerial...
Thorough understanding of aerosols, clouds, boundary layer structure, and radiation is required to improve the representation of the Arctic atmosphere in weather forecasting and...- publication PDF
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Sea ice summer camp: Bringing together sea ice modelers and observers to...
Arctic sea ice has undergone significant change with large reductions in thickness and areal extent over the historical record. Numerical models project sea ice loss to continue...- publication PDF
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Estimation of Spatial Covariances From the Mid-Ocean Dynamics Experiment
The Mid-Ocean Dynamics Experiment (MODE) was an attempt to observe mesoscale ocean eddies in the western North Atlantic, primarily during the spring of 1973. A variety of...- publication PDF
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A Generalized Theoretical Analysis of Cross-correlation and Cross-spectra...
In the analysis of data obtained from SA systems, the most common approach is to assume models of the diffraction pattern without relating it to the statistical properties of...- publication PDF
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Longitudinal variation of tides in the MLT region: 2. Relative effects of...
Part 2 of our study examines the relative importance of radiative heating and latent heating in accounting for vertically propagating tides that impose longitude variability on...- publication PDF
