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CME evolution in the structured heliosphere and effects at Earth and Mars...
The activity of the Sun alternates between a solar minimum and a solar maximum, the former corresponding to a period of "quieter" status of the heliosphere. During solar...- publication PDF
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Evaluation of some distributional downscaling methods as applied to daily...
Statistical downscaling (SD) methods used to refine future climate change projections produced by physical models have been applied to a variety of variables. We evaluate four...- publication PDF
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Multiphase chemistry: Experimental design for coordinated measurement and...
In situ measurements and remote sensing retrievals of atmospheric chemistry are typically limited to sampling in clear sky. It is reasonable to assume that biased sampling has...- publication PDF
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Subjective modeling decisions can significantly impact the simulation of...
It is generally acknowledged in the environmental sciences that the choice of a computational model impacts the research results. In this study of a flood and drought event in...- publication PDF
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Pan-Pacific low-frequency modes of sea level and climate variability
Tide gauges provide a long observational record that can inform the nature of satellite-era basin-scale sea level trends. However, common signals must be extracted from...- publication PDF
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Variability in upwelling across the tropical tropopause and correlations...
Temporal variability of the upwelling near the tropical tropopause on daily to annual timescales is investigated using three different estimates computed from the ERA-Interim...- publication PDF
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A more realistic representation of overshoot at the base of the solar...
The stratification near the base of the Sun's convective envelope is governed by processes of convective overshooting and element diffusion, and the region is widely believed to...- publication PDF
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Computing in the Atmospheric Sciences in the 1980s / Proceedings of the...
This report includes: Walter McIntyre���s Future Developments within SCD, Warren Washington���s keynote address entitled...- publication PDF
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Revisiting the hail radar reflectivity-kinetic energy flux relation by...
The retrieval of hail kinetic energy with weather radars or its simulation in numerical models is challenging because of the shape complexity and variable density of hailstones....- publication PDF
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Heterogeneous nucleation drives particle size segregation in sequential...
Secondary organic aerosol formation via condensation of organic vapors onto existing aerosol transforms the chemical composition and size distribution of ambient aerosol, with...- publication PDF
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A microwave land data assimilation system: Scheme and preliminary evaluation...
To make use of satellite microwave observations for estimating soil moisture, a dual-pass land data assimilation system (DLDAS) is developed in this paper by incorporating a...- publication PDF
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Quantifying sources and sinks of reactive gases in the lower atmosphere...
Atmospheric composition is governed by the interplay of emissions, chemistry, deposition, and transport. Substantial questions surround each of these processes, especially in...- publication PDF
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Impact of warmer sea surface temperature on the global pattern of intense...
Intense convection (updrafts exceeding 10 m s(-1)) plays an essential role in severe weather and Earth's energy balance. Despite its importance, how the global pattern of...- publication PDF
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A numerical study of the effects of migrating tides on thermosphere midnight...
In this study, we employed the National Center for Atmospheric Research Thermosphere Ionosphere Electrodynamics General Circulation Model (TIEGCM) and the extended Canadian...- publication PDF
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How important is vegetation phenology for European climate and heat waves?
It has been hypothesized that vegetation phenology may play an important role for the midlatitude climate. This study investigates the impact of interannual and intraseasonal...- publication PDF
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On the influence of shrub height and expansion on northern high latitude climate
There is a growing body of empirical evidence documenting the expansion of shrub vegetation in the circumpolar Arctic in response to climate change. Here, we conduct a series of...- publication PDF
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Assessment of the southern polar and subpolar warming in the PMIP4 last...
Given relatively abundant paleo-proxies, the study of the last interglacial (LIG, â¼â129â116â000 years ago, ka) is valuable to understanding the responses and feedback of...- publication PDF
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Interactive crop management in the Community Earth System Model (CESM1):...
The Community Earth System Model, version 1 (CESM1) is evaluated with two coupled atmosphere-land simulations. The CTRL (control) simulation represents crops as unmanaged...- publication PDF
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Thermospheric basis functions for improved dynamic calibration of...
State-of-the-art satellite drag models require upgrades to meet operational Precision Orbit Determination requirements for collision avoidance, reentry predictions and catalog...- publication PDF
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UNIX Word Processing at HAO / (For Use With the 4.2 BSD Version and -Me...
This manual is a compilation of the word processing commands needed while using UNIX at the High Altitude Observatory of the National Center for Atmospheric Research in Boulder,...- publication PDF
