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Atmospheric inverse modeling with known physical bounds: an example from trace gas emissions
Atmospheric inverse modeling physical bounds
2014/12/18
Many inverse problems in the atmospheric sciences involve parameters with known physical constraintsExamples include nonnegativity (e.g., emissions of some urban air pollutants) or upward limits impli...
Implementation and evaluation of online gas-phase chemistry within a regional climate model (RegCM-CHEM4)
Implementation and evaluation online gas-phase chemistry regional climate model
2014/12/10
The RegCM-CHEM4 is a new online climate-chemistry model based on the International Centre for Theoretical Physics (ICTP) regional climate model (RegCM4). Tropospheric gas-phase chemistry is integrated...
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...
PREP-CHEM-SRC – 1.0: a preprocessor of trace gas and aerosol emission fields for regional and global atmospheric chemistry models
The preprocessor. Launching Trace gases. Aerosol Atmospheric chemistry. Emissions Biomass burning
2014/12/9
The preprocessor PREP-CHEM-SRC presented in the paper is a comprehensive tool aiming at preparing emission fields of trace gases and aerosols for use in atmospheric-chemistry transport models. The con...
Ground Rupturing Due to Entrapped Air/Gas in the Unconfined Zone
Unconfined Zone Compressed Air/Gas Pore-Fluid Pressure
2013/3/6
The sudden and large oscillation of pressure of compressed air/gas entrapped in porous medium due to the changes in the actual pore-fluid pressure, during recharge of water following intense rainfall ...
Sedimentation Processes at the Navigation Channel of the Liquefied Natural Gas (LNG) Port, Nile Delta, Egypt
Sedimentation Rate Nile Delta Navigation Channel Bed Load
2013/3/6
Liquefied Natural Gas (LNG) port is located at Abu Qir Bay on the northwestern coast of the Nile delta, Egypt. The port was constructed in 2004 to export liquefied natural gas worldwide. The offshore ...
Continuous measurements of atmospheric oxygen and carbon dioxide on a North Sea gas platform
Continuous measurements atmospheric oxygen carbon dioxide North Sea gas platform
2010/2/8
A new atmospheric measurement station has been established on the North Sea oil and gas production platform F3, 200 km north off the Dutch coast (5°51' N, 4°44' E). Atmospheric concentrations of O2 an...
Needle age-related and seasonal photosynthetic capacity variation is negligible for modelling yearly gas exchange of a sparse temperate Scots pine forest
Needle age-related and seasonal photosynthetic capacity variation a sparse temperate Scots pine forest
2010/1/21
In this study, we quantified the predictive accuracy loss involved with omitting photosynthetic capacity variation for a Scots pine (Pinus sylvestris L.) stand in Flanders, Belgium. Over the course of...
Effect of peat quality on microbial greenhouse gas formation in an acidic fen
peat quality microbial greenhouse gas formation an acidic fen
2010/1/21
Peatlands play an important role in the global carbon cycle and represent both an important stock of soil carbon and a substantial natural source of relevant greenhouse gases like CO2 and CH4. While i...
From biota to chemistry and climate: towards a comprehensive description of trace gas exchange between the biosphere and atmosphere
From biota to chemistry and climate trace gas exchange the biosphere and atmosphere
2010/1/21
Exchange of non-CO2 trace gases between the land surface and the atmosphere plays an important role in atmospheric chemistry and climate. Recent studies have highlighted its importance for interpretat...
Annual carbon gas budget for a subarctic peatland, Northern Sweden
Annual carbon gas budget a subarctic peatland Northern Sweden
2010/1/21
Temperatures in the Arctic regions are rising, thawing permafrost and exposing previously stable soil organic carbon (OC) to decomposition. This can result in northern latitude soils, which have accum...
A laboratory flow reactor with gas particle separation and on-line MS/MS for product identification in atmospherically important reactions
flow reactor gas particle separation on-line MS/MS product identification
2010/2/8
A system to study the gas and particle phase products from gas phase hydrocarbon oxidation is described. It consists of a gas phase photochemical flow reactor followed by a diffusion membrane denuder ...
Selection of the most appropriate interpolation method for sandstone reservoirs in the Kloštar oil and gas field
oil 1st san dstone series porosity geos tatistics kriging Pontian Kloš tar Croa tia
2009/12/8
The distribution of porosity data collected at the Kloštar field is analysed. This field is located in the north-western part of the Sava depression, and represents one of the most long-standing ...
A simple model for submarine slope stability analysis with gas hydrates
simple model submarine slope stability analysis gas hydrates
2009/12/3
Gas hydrates have been of interest for years, but as of late they have become increasingly considered as a potential energy source, a potential environmental impact, and a geohazard. This paper discus...
Noble gas signature of the late heavy bombardment in the Earth's atmosphere
Noble gas signature late heavy bombardment Earth's atmosphere
2009/10/22
The Lunar cratering record is consistent with the occurrence of a late heavy bombardment (LHB), which marked the end of terrestrial planet accretion 3.8 billion years ago. However, clear evidence of a...