Searched for: subject:"atmosphere"
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Bocanegra Bahamon, T.M. (author)
The thesis that you are about to read deals with the implementation of a technique to study atmospheres of planets or moons in the Solar System. We use radio telescopes on Earth to track spacecraft that are orbiting planets, and use the signal the spacecraft emits, as it crosses the planet’s atmosphere, to investigate its physical...
doctoral thesis 2019
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de Pater, I. (author), Sault, R. J. (author), Wong, Michael H. (author), Fletcher, Leigh N. (author), DeBoer, David (author), Butler, Bryan (author)
We observed Jupiter four times over a full rotation (10 h) with the upgraded Karl G. Jansky Very Large Array (VLA) between December 2013 and December 2014. Preliminary results at 4–17 GHz were presented in de Pater et al. (2016); in the present paper we present the full data set at frequencies between 3 and 37 GHz. Major findings are: i) The...
journal article 2019
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Tuinenburg, O. A. (author), van der Ent, R.J. (author)
Recent studies determined the residence time of moisture in the atmosphere to be 8–10 days but with large spatial and temporal differences. An unexplained daily cycle in the probability density function (PDF) of the residence time of land evaporation was observed, which was not present for oceanic evaporation. Moreover, the PDF of atmospheric...
journal article 2019
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Baas, P. (author), van de Wiel, B.J.H. (author), Van Meijgaard, Erik (author), Vignon, Etienne (author), Genthon, Christophe (author), van der Linden, S.J.A. (author), de Roode, S.R. (author)
In this work we study the dynamics of the surface-based temperature inversion over the Antarctic Plateau during the polar winter. Using 6 years of observations from the French–Italian Antarctic station Concordia at Dome C, we investigate sudden regime transitions in the strength of the near-surface temperature inversion. Here we define “near...
journal article 2019
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Brunner, A.E. (author)
In the coming decade, a new generation of extremely large-scale ground-based astronomical telescopes will see first light. It is well known that increasing the size of the telescope aperture is only beneficial if the adaptive optics (AO) system, which compensates for turbulence-induced wavefront aberrations, scales accordingly. For the extreme...
doctoral thesis 2018
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Chimot, J.J. (author)
The main objective of this thesis is to design a new aerosol layer height retrieval in order to improve the operational NO2 retrieval, both in the troposphere, from space-borne instruments for highly polluted events and under cloud-free conditions. This thesis focuses on the exploitation of the OMI satellite measurements acquired in the visible...
doctoral thesis 2018
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Toomey, Tim (author), Sayol Espana, J.M. (author), Marcos, Marta (author), Jorda, Gabriel (author), Campins, Joan (author)
This study analyses the distribution of ocean wind waves in response to extratropi- cal cyclones over the western Mediterranean Sea. To this end we use an ERA40-based database of atmospheric cyclones and a 3-hourly wind wave hind- cast with high horizontal resolution (1/6  ) based on an ERA40 downscaled forcing for the region of study. The...
journal article 2018
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Rossi, L.C.G. (author), Berzosa Molina, J. (author), Stam, D.M. (author)
PYMIEDAP (the Python Mie Doubling-Adding Programme) is a Python-based tool for computing the total linearly and circularly polarized fluxes of incident unpolarized sunlight or starlight that is reflected by solar system planets or moons, respectively, or by exoplanets at a range of wavelengths. The radiative transfer computations are based on...
journal article 2018
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Shao, W. (author), Coenders, A.M.J. (author), Judge, Jasmeet (author), Zeng, Yijian (author), Su, Ye (author)
The process of evaporation interacts with the soil, which has various comprehensive mechanisms. Multiphase flow models solve air, vapour, water, and heat transport equations to simulate non-isothermal soil moisture transport of both liquid water and vapor flow, but are only applied in non-vegetated soils. For (sparsely) vegetated soils often...
journal article 2018
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Labzovskii, Lev D. (author), Papayannis, Alexandros (author), Binietoglou, Ioannis (author), Banks, R.F. (author), Baldasano, Jose M. (author), Toanca, Florica (author), Tzanis, Chris G. (author), Christodoulakis, John (author)
Accurate continuous measurements of relative humidity (RH) vertical profiles in the lower troposphere have become a significant scientific challenge. In recent years a synergy of various ground-based remote sensing instruments have been successfully used for RH vertical profiling, which has resulted in the improvement of spatial resolution...
journal article 2018
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van Hooft, J.A. (author), Popinet, Stéphane (author), van Heerwaarden, Chiel C. (author), van der Linden, S.J.A. (author), de Roode, S.R. (author), van de Wiel, B.J.H. (author)
We present a proof-of-concept for the adaptive mesh refinement method applied to atmospheric boundary-layer simulations. Such a method may form an attractive alternative to static grids for studies on atmospheric flows that have a high degree of scale separation in space and/or time. Examples include the diurnal cycle and a convective...
journal article 2018
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Shani Kadmiel, Shahar (author), Assink, Jelle D. (author), Smets, P.S.M. (author), Evers, L.G. (author)
6.5 Norcia earthquakes generated significant epicentral ground motions that couple to the atmosphere and produce infrasonic waves. Epicentral seismic and infrasonic signals are...
journal article 2018
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Wang, Rongxiao (author), Chen, B. (author), Qiu, S. (author), Ma, Liang (author), Zhu, Zhengqiu (author), Wang, Yiping (author), Qiu, Xiaogang (author)
Locating and quantifying the emission source plays a significant role in the emergency management of hazardous gas leak accidents. Due to the lack of a desirable atmospheric dispersion model, current source estimation algorithms cannot meet the requirements of both accuracy and efficiency. In addition, the original optimization algorithm can...
journal article 2018
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Zhu, Zhengqiu (author), Chen, B. (author), Qiu, S. (author), Wang, Rongxiao (author), Wang, Yiping (author), Ma, Liang (author), Qiu, Xiaogang (author)
The chemical industry is of paramount importance to the world economy and this industrial sector represents a substantial income source for developing countries. However, the chemical plants producing inside an industrial district pose a great threat to the surrounding atmospheric environment and human health. Therefore, designing an...
journal article 2018
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Zhu, Zhengqiu (author), Qiu, S. (author), Chen, Bin (author), Wang, Rongxiao (author), Qiu, Xiaogang (author)
The accurate prediction of hazardous gas dispersion process is essential to air quality monitoring and the emergency management of contaminant gas leakage incidents in a chemical cluster. Conventional Gaussian-based dispersion models can seldom give accurate predictions due to inaccurate input parameters and the computational errors. In order...
journal article 2018
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Gedik, E. (author), Cabrera Quiros, L.C. (author), Martella, Claudio (author), Englebienne, Gwenn (author), Hung, H.S. (author)
We present an approach to interpret the response of audiences to live performances by processing mobile sensor data. We apply our method on three different datasets obtained from three live performances, where each audience member wore a single tri-axial accelerometer and proximity sensor embedded inside a smart sensor pack. Using these...
journal article 2018
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Rossi, L.C.G. (author), Stam, D.M. (author)
The circular polarization of light that planets reflect is often neglected because it is very small compared to the linear polarization. It could, however, provide information on a planet’s atmosphere and surface, and on the presence of life, because homochiral molecules that are the building blocks of life on Earth are known to reflect...
journal article 2018
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Wan, Y. (author), Keviczky, T. (author)
This paper proposes a real-time fault-tolerant estimation approach for combined sensor fault diagnosis and air data reconstruction. Due to simultaneous influence of winds and latent faults on monitored sensors, it is challenging to address the tradeoff between robustness to wind disturbances and sensitivity to sensor faults. As opposed to...
journal article 2018
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Blanc, E (author), Ceranna, L. (author), Hauchecorne, A (author), Charlton-Perez, A (author), Marchetti, E. (author), Evers, L.G. (author), Kvaerna, T (author), Lastovicka, J. (author), Eliasson, L. (author), Crosby, N. B. (author), Blanc-Benon, P. (author), le Pichon, A (author), Brachet, N (author), Pilger, C (author), Keckhut, P (author), Assink, J. D. (author), Smets, P.S.M. (author), Lee, C. F. (author), Kero, J. (author), Sindelarova, T. (author), Kämpfer, N. (author), Rufenacht, R (author), Farges, T. (author), Millet, C. (author), Näsholm, S. P. (author), Gibbons, Steven (author), Espy, P. J. (author), Hibbins, R. E. (author), Heinrich, P (author), Ripepe, M (author), Khaykin, S. (author), Mze, N. (author), Chum, J. (author)
This paper reviews recent progress toward understanding the dynamics of the middle atmosphere in the framework of the Atmospheric Dynamics Research InfraStructure in Europe (ARISE) initiative. The middle atmosphere, integrating the stratosphere and mesosphere, is a crucial region which influences tropospheric weather and climate. Enhancing...
journal article 2018
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Prats-Iraola, Pau (author), Lopez Dekker, J.F. (author), De Zan, Francesco (author), Yague-Martinez, Nestor (author), Zonno, Mariantonietta (author), Rodriguez-Cassola, Marc (author)
This paper addresses the performance in the retrieval of 3-D mean deformation maps by exploiting simultaneous or quasi-simultaneous squinted synthetic aperture radar (SAR) interferometric acquisitions in a repeat-pass scenario. In multisatellite or multibeam low earth observation missions, the availability of two (or more) lines of sight ...
journal article 2018
Searched for: subject:"atmosphere"
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