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Rising greenhouse gases pose continued threat to Arctic ozone layer
ozone loss greenhouse gases climate change
2021/8/4
A new study shows that extremely low winter temperatures high in the atmosphere over the Arctic are becoming more frequent and more extreme because of climate patterns associated with global warming. ...
MM5 v3.6.1 and WRF v3.5.1 model comparison of standard and surface energy variables in the development of the planetary boundary layer
planetary boundary layer M5 v3.6.1
2014/12/19
Air quality forecasting requires atmospheric weather models to generate accurate meteorological conditions, one of which is the development of the planetary boundary layer (PBL). An important contribu...
Improving subtropical boundary layer cloudiness in the 2011 NCEP GFS
Improving subtropical boundary layer cloudiness layer cloudiness
2014/12/19
The current operational version of National Centers for Environmental Prediction (NCEP) Global Forecasting System (GFS) shows significant low cloud bias.
On the computation of planetary boundary-layer height using the bulk Richardson number method
planetary boundary-layer bulk Richardson number method
2014/12/19
Experimental data from four field campaigns are used to explore the variability of the bulk Richardson number of the entire planetary boundary layer (PBL), Ribc, which is a key parameter for calculati...
An improved non-iterative surface layer flux scheme for atmospheric stable stratification conditions
Turbulent flux parameterization iterative calculation results the rough state stability condition the relative error
2014/12/18
Parameterization of turbulent fluxes under stably stratified conditions has always been a challenge. Current surface fluxes calculation schemes either need iterations or suffer low accuracy. In this p...
Scheme for calculation of multi-layer cloudiness and precipitation for climate models of intermediate complexity
multi-layer cloudiness precipitation for climate models intermediate complexity
2014/12/12
In this study we present a scheme for calculating the characteristics of multi-layer cloudiness and precipitation for Earth system models of intermediate complexity (EMICs). This scheme considers thre...
Unified parameterization of the planetary boundary layer and shallow convection with a higher-order turbulence closure in the Community Atmosphere Model: single-column experiments
the planetary boundary layer higher-order turbulence closure Community Atmosphere Model single-column experiments
2014/12/10
This paper describes the coupling of the Community Atmosphere Model (CAM) version 5 with a unified multi-variate probability density function (PDF) parameterization, Cloud Layers Unified by Binormals ...
Meteorological and trace gas factors affecting the number concentration of atmospheric Aitken (Dp = 50 nm) particles in the continental boundary layer: parameterization using a multivariate mixed effects model
Meteorological number concentration atmospheric Aitken particles continental boundary layer multivariate mixed effects model
2014/12/9
Measurements of aerosol size distribution and different gas and meteorological parameters, made in three polluted sites in Central and Southern Europe: Po Valley, Italy, Melpitz and Hohenpeissenberg i...
Variability of sporadic E-layer semi transparency (foEs-fbEs)with magnitude and distance from earthquake epicenters to vertical sounding stations
sporadic E-layer semi transparency earthquake epicenters vertical sounding stations
2009/12/11
Variations of the Es-layer semi transparency co-efficient were analyzed for more than 100 earthquakes with magnitudes M > 4 and depths h < 100 km. Data of mid latitude vertical sounding stations (Koku...
Real-time profiling of organic trace gases in the planetary boundary layer by PTR-MS using a tethered balloon
Real-time profiling organic trace gases planetary boundary layer PTR-MS tethered balloon
2010/2/8
A method for real-time profiling of volatile organic compounds (VOCs) was developed combining the advantages of a tethered balloon as a research platform and of proton transfer reaction mass spectrome...
Layer disturbances and the radio-echo free zone in ice sheets
Layer disturbances radio-echo free zone ice sheets
2010/2/3
Radio-echo sounding of the Antarctic and Greenlandic ice sheets often reveals a layer in the lowest hundreds of meters above bedrock more or less free of radio echoes, known as the echo-free zone (EFZ...
Comparison of Euphotic Layer Criteria in Lakes
Optical properties of lakes light field in lakes photosynthesis in water
2009/6/10
The water layer where photosynthesis takes place (euphotic zone) was studied, and criteria for
determining its thickness were compared. Published works give alternative definitions of the euphotic de...
Optically Stimulated Luminescence to Date Coastal Dunes and a Possible Tsunami Layer on the Kavak Delta (Saros Gulf,NW Turkey)
coastal dune coastal geomorphology dune boundary OSL dating
2010/1/11
Optically stimulated luminescence (OSL) dating was used to determine the timing of initial dune formation and reconstruct the evolution of coastal dunes that developed on the Kavak Delta, Saros Gulf, ...
Carbon and nutrient mixed layer dynamics in the Norwegian Sea
Carbon nutrient mixed layer dynamics Norwegian Sea
2010/1/18
A coupled carbon-ecosystem model is compared to recent data from Ocean Weather Station M (66° N, 02° E) and used as a tool to investigate nutrient and carbon processes within the Norwegian Sea. Nitrat...
Climate-mediated changes to mixed-layer properties in the Southern Ocean:assessing the phytoplankton response
Climate-mediated changes mixed-layer properties Southern Ocean phytoplankton response
2010/1/15
Concurrent changes in ocean chemical and physical properties influence phytoplankton dynamics via alterations in carbonate chemistry, nutrient and trace metal inventories and upper ocean light environ...