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Satellite sea surface salinity observations impact on El Niño/Southern...
El Nino/Southern Oscillation (ENSO) has far reaching global climatic impacts and so extending useful ENSO forecasts would have great societal benefit. However, one key variable...- publication PDF
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Incoherent scatter radar measurements and modeling of high-latitude solar...
A 9-year database of sunlit E region electron density altitude profiles (N-e(z)) measured by the Sondrestrom incoherent scatter radar (ISR) has been partitioned over a parameter...- publication PDF
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Operational Lessons of the Line Islands Experiment
This report reproduces the introspective review meeting about operational lessons learned from the Line Islands experiment that took place during March and April 1967....- publication PDF
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The POLARCAT Model Intercomparison Project (POLMIP): Overview and evaluation...
A model intercomparison activity was inspired by the large suite of observations of atmospheric composition made during the International Polar Year (2008) in the Arctic. Nine...- publication PDF
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Numerical modeling of cloud chemistry effects on isocyanic acid (HNCO)
Isocyanic acid (HNCO), a product of some combustion processes, can potentially have negative human health effects. While gas phase HNCO loss processes are slow, HNCO loss in the...- publication PDF
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On the relationship between Indian Ocean sea surface temperature and the...
The relationship between Indian Ocean sea surface temperature and the transition of El Niño events into either La Niña or El Niño-Southern Oscillation neutral conditions is...- publication PDF
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Contributions of clouds, surface albedos, and mixed-phase ice nucleation...
The Arctic radiation balance is strongly affected by clouds and surface albedo. Prior work has identified Arctic cloud liquid water path (LWP) and surface radiative flux biases...- publication PDF
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Permafrost carbon-climate feedback is sensitive to deep soil carbon...
Permafrost soils contain enormous amounts of organic carbon whose stability is contingent on remaining frozen. With future warming, these soils may release carbon to the...- publication PDF
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Externally forced and internally generated decadal climate variability...
Globally averaged surface air temperatures in some decades show rapid increases (accelerated warming decades), and in other decades there is no warming trend (hiatus decades). A...- publication PDF
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Adjustments for wind-induced undercatch in snowfall measurements based on...
Adjustments for the wind-induced undercatch of snowfall measurements use transfer functions to account for the expected reduction of the collection efficiency with increasing...- publication PDF
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On how hot towers fuel the Hadley cell: An observational and modeling study...
An airflow trajectory analysis was carried out based on an idealized numerical simulation of the nocturnal 9 February 1993 equatorial oceanic squall line observed over the...- publication PDF
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Cloud droplets to drizzle: Contribution of transition drops to microphysical...
Aircraft measurements of the ubiquitous marine stratocumulus cloud type, with over 3000 km of in situ data from the Pacific during the Cloud System Evolution in the Trades...- publication PDF
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Estimating the accuracy of user surveys for assessing the impact of HPC systems
Each year, the Computational & Information Systems Laboratory (CISL) conducts a survey of its current and recent user community to gather a number of metrics about the...- publication PDF
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Uncertainties in climate responses to past land cover change: First results...
Seven climate models were used to explore the biogeophysical impacts of human-induced land cover change (LCC) at regional and global scales. The imposed LCC led to statistically...- publication PDF
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Composite physical–biological El Niño and La Niña conditions in the...
El Nino-Southern Oscillation (ENSO) is recognized as one of the potentially predictable drivers of California Current System (CCS) variability. In this study, we analyze a...- publication PDF
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The next generation airborne polarimetric Doppler weather radar
Results from airborne field deployments emphasized the need to obtain concurrently high temporal and spatial resolution measurements of 3-D winds and microphysics. A phased...- publication PDF
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Observationally constrained aerosol-cloud semi-direct effects
Absorbing aerosols, like black carbon (BC), give rise to rapid adjustments, and the associated perturbation to the atmospheric temperature structure alters the cloud...- publication PDF
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Chemical composition of atmospheric nanoparticles during nucleation events in Atlanta
We report the first direct, in situ measurements of the chemical composition of size-segregated atmospheric nanoparticles in the 6 - 15 nm diameter range. These measurements...- publication PDF
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Can the Madden-Julian oscillation affect the Antarctic total column ozone?
The effect of the Madden-Julian Oscillation (MJO) on springtime Antarctic ozone variations is revealed for the first time from multi-satellite reanalysis and model simulations....- publication PDF
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Global observations of thermospheric temperature and nitric oxide from MIPAS...
We present vertically resolved thermospheric temperatures and NO abundances in terms of volume mixing ratio retrieved simultaneously from spectrally resolved 5.3 μm emissions...- publication PDF