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Detection of superrefraction at the top of the atmospheric boundary layer...
Superrefraction at the top of the atmospheric boundary layer introduces problems for assimilation of radio occultation data in weather models. A method of detection of...- publication PDF
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Impact of model resolution and initial/boundary conditions in forecasting...
This study investigates the impact of initial conditions/boundary conditions (ICs/BCs) and horizontal resolutions on forecast for average weather conditions, focusing on low-...- publication PDF
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Ecological processes dominate the ¹³C land disequilibrium in a Rocky...
Fossil fuel combustion has increased atmospheric COâ byâ~â115 µmol mol-1 since 1750 and decreased its carbon isotope composition (δ¹³C) by 1.7-2â° (the ¹³C Suess...- publication PDF
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Impact of geoengineered aerosols on the troposphere and stratosphere
A coupled chemistry climate model, the Whole Atmosphere Community Climate Model was used to perform a transient climate simulation to quantify the impact of geoengineered...- publication PDF
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Enhanced aerosol mass in the tropical tropopause layer linked to ozone abundance
Aerosol particles play a critical role in the tropical tropopause layer (TTL) through cloud formation and heterogeneous chemistry, influencing the radiative and chemical balance...- publication PDF
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The effect of periodic variations of thermospheric density on CHAMP and GRACE orbits
In this paper thermosphere densities observed by the CHAMP and GRACE satellites and their orbital parameters are used to investigate the effect of periodic oscillations in...- publication PDF
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Dual EÂ ÃÂ B flow responses in the dayside ionosphere to a sudden IMF By rotation
We report for the first time a dual transition state in the dayside ionosphere following a sudden rotation of the interplanetary magnetic field (IMF) in the upstream...- publication PDF
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The global impact of supersaturation in a coupled chemistry-climate model
Ice supersaturation is important for understanding condensation in the upper troposphere. Many general circulation models however do not permit supersaturation. In this study, a...- publication PDF
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An advanced scheme for wet scavenging and liquid-phase chemistry in a...
Clouds are reaction chambers for atmospheric trace gases and aerosols, and the associated precipitation is a major sink for atmospheric constituents. The regional chemistry-...- publication PDF
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NetCDF User's Guide: An Interface for Data Access Version 1.11
The purpose of this manual entitled, "NetCDF User's Guide: An Interface for Data Access", is to allow the user to create, access, and share scientific data in a form that is...- publication PDF
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Obstacles to high-dimensional particle filtering
Particle filters are ensemble-based assimilation schemes that, unlike the ensemble Kalman filter, employ a fully nonlinear and non-Gaussian analysis step to compute the...- publication PDF
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Lagrangian particle tracking in three dimensions via single-camera in-line...
Lagrangian particle trajectories are measured in three spatial dimensions with a single camera using the method of digital in-line holography. Lagrangian trajectories of...- publication PDF
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Analysis of ozone and nitric acid in spring and summer Arctic pollution...
In this paper, we analyze tropospheric Oâ together with HNOâ during the POLARCAT (Polar Study using Aircraft, Remote Sensing, Surface Measurements and Models, of Climate,...- publication PDF
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Hybrid mass coordinate in WRF-ARW and its impact on upper-level turbulence...
Although a terrain-following vertical coordinate is well suited for the application of surface boundary conditions, it is well known that the influences of the terrain on the...- publication PDF
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Refinement of the use of inhomogeneous background error covariance estimated...
Background error covariance (BEC) is one of the key components in data assimilation systems for numerical weather prediction. Recently, a scheme of using an inhomogeneous and...- publication PDF
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Vertical air motion from t-rex radiosonde and dropsonde data
The primary goal of this study is to explore the potential for estimating the vertical velocity (VV) of air from the surface to the stratosphere, using widely available...- 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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Predicting a decadal shift in North Atlantic climate variability using the...
Decadal prediction experiments were conducted as part of phase 5 of the Coupled Model Intercomparison Project (CMIP5) using the GFDL Climate Model, version 2.1 (CM2.1) forecast...- publication PDF
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Long-range prediction and the stratosphere
Over recent years there have been concomitant advances in the development of stratosphere-resolving numerical models, our understanding of stratosphere-troposphere interaction,...- publication PDF
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Introduction to Adjoint Techniques and the MM5 Adjoint Modeling System
Adjoint models are increasingly applied to many problems in meteorology and oceanography. The adjoint model of MM5 is a tool which effectively computes the gradient (or a...- publication PDF
