Results 71 to 80 of about 106,382 (192)

Chemical data assimilation estimates of continental U.S. ozone and nitrogen budgets during the Intercontinental Chemical Transport Experiment-North America [PDF]

, 2007
Global ozone analyses, based on assimilation of stratospheric profile and ozone column measurements, and NOy predictions from the Real-time Air Quality Modeling System (RAQMS) are used to estimate the ozone and NOy budget over the continental United ...
Al-Saadi, J, Avery, M A, Avery, Melody A, Cohen, Ronald C, Crawford, J, Dibb, Jack E., Fairlie, T D, Fishman, Jack, Johnson, Donald, Kittaka, Chieko, Lenzen, A, Lingenfelser, Gretchen, Martin, Randall, Natarajan, M, Olson, J R, Pierce, R B, Rault, Didier, Sachse, G W, Schaack, T, Soja, Amber, Stobie, James, Szykman, Jim, Thompson, A M, Zapotocny, Tom   +23 more
core   +2 more sources

Development of convection along the SPCZ within a Madden-Julian oscillation [PDF]

, 1996
A subtropical Rossby wave propagation mechanism is proposed to account for the poleward and eastward progression of intraseasonal convective anomalies along the South Pacific Convergence Zone (SPCZ) that is observed in a significant proportion of Madden ...
Ardanuy, Emanuel, Gill, Heckley, Hoskins, Hoskins, Hoskins, Hoskins, Hsu, Jin, Ju, Kiladis, Knutson, Kodama, Lau, Matthews, Nastula, Neelin, Rodwell, Rui, Vincent, Wang, Webster, Webster, Weickmann, Weickmann   +25 more
core   +2 more sources

The potential of drone observations to improve air quality predictions by 4D-Var [PDF]

Atmospheric Chemistry and Physics
Vertical profiles of atmospheric pollutants, acquired by uncrewed aerial vehicles (UAVs, known as drones), represent a new type of observation that can help to fill the existing observation gap in the planetary boundary layer (PBL). This article presents
H. Erraji, P. Franke, A. Lampert, T. Schuldt, R. Tillmann, A. Wahner, A. C. Lange   +6 more
doaj   +1 more source

Global perspectives on nitrate aerosol dynamics: a comprehensive sensitivity analysis [PDF]

Atmospheric Chemistry and Physics
In recent years, nitrate aerosols have become a dominant component of atmospheric composition, surpassing sulfate in both concentration and climatic impact. However, accurately simulating nitrate remains a major challenge for global models due to complex
A. Milousis, S. M. C. Scholz, H. Fuchs, H. Fuchs, A. P. Tsimpidi, V. A. Karydis   +5 more
doaj   +1 more source

Phosphine and Trace Gas Measurement Instrument Design in the Earth's Troposphere and Stratosphere. [PDF]

, 2023
Liam Warburton, Malak El Tarabeishy, Saryu Bapatla, Mika Nonaka, Amalia Battle, Nova Hagen, Thaman Venigalla   +6 more
openalex   +1 more source

Role of climate feedback on methane and ozone studied with a coupled ocean-atmosphere-chemistry model. [PDF]

, 2001
We present results from two experiments carried out with a coupled ocean-atmosphere-tropospheric chemistry model run continously over the period 1990 to 2100.
C. E. Johnson, Collins, Collins, Collins, D. S. Stevenson, DeMore, Dunlop, Fuglestvedt, Gordon, Grewe, Johnson, Kanakidou, Kanakidou, Prather, R. G. Derwent, Stevenson, Thompson, Toumi, W. J. Collins   +18 more
core   +1 more source

Kinetics of the reactions of OH with CO, NO, and NO₂ and of HO₂ with NO₂ in air at 1 atm pressure, room temperature, and tropospheric water vapour concentrations [PDF]

Atmospheric Chemistry and Physics
The termolecular reactions of hydroxyl radicals (OH) with carbon monoxide (CO), nitric oxide (NO), and nitrogen dioxides (NO2) and the termolecular reaction of hydroperoxy radicals (HO2) with NO2 greatly impact the atmospheric oxidation efficiency.
M. Rolletter, A. Hofzumahaus, A. Novelli, A. Wahner, H. Fuchs, H. Fuchs   +5 more
doaj   +1 more source

Retrieval and Analysis of the Strongest Mixed Layer in the Troposphere

Atmosphere, 2020
In this article, Thorpe analysis, which often retrieves the characteristics of mixing in the free atmosphere from balloon sounding data, is applied to the data of the Constellation Observing System for Meteorology, Ionosphere and Climate (COSMIC).
Zheng Sheng, Lesong Zhou, Yang He
doaj   +1 more source

Tropospheric water vapour observations by ground-based lidar [PDF]

, 2002

Gerding, M., Neuber, Roland, Ritter, Christoph   +2 more
core  

Climate model simulation of winter warming and summer cooling following the 1991 Mount Pinatubo volcanic eruption

, 1999
We simulate climate change for the 2-year period following the eruption of Mount Pinatubo in the Philippines on June 15, 1991, with the ECHAM4 general circulation model (GCM).
Antuna, J., Graf, H., Kirchner, I., Robock, A., Stenchikov, G.   +4 more
core   +1 more source