Academic literature on the topic 'Boundary layer (Meteorology)'

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Journal articles on the topic "Boundary layer (Meteorology)"

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Hänel, G. "Introduction to boundary layer meteorology." Atmospheric Research 26, no. 2 (April 1991): 183–84. http://dx.doi.org/10.1016/0169-8095(91)90034-t.

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Sorbjan, Zbigniew. "Recent topics in boundary-layer meteorology." Acta Geophysica 56, no. 1 (March 2008): 1. http://dx.doi.org/10.2478/s11600-007-0044-0.

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LeMone, Margaret A., Wayne M. Angevine, Christopher S. Bretherton, Fei Chen, Jimy Dudhia, Evgeni Fedorovich, Kristina B. Katsaros, et al. "100 Years of Progress in Boundary Layer Meteorology." Meteorological Monographs 59 (January 1, 2019): 9.1–9.85. http://dx.doi.org/10.1175/amsmonographs-d-18-0013.1.

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AbstractOver the last 100 years, boundary layer meteorology grew from the subject of mostly near-surface observations to a field encompassing diverse atmospheric boundary layers (ABLs) around the world. From the start, researchers drew from an ever-expanding set of disciplines—thermodynamics, soil and plant studies, fluid dynamics and turbulence, cloud microphysics, and aerosol studies. Research expanded upward to include the entire ABL in response to the need to know how particles and trace gases dispersed, and later how to represent the ABL in numerical models of weather and climate (starting in the 1970s–80s); taking advantage of the opportunities afforded by the development of large-eddy simulations (1970s), direct numerical simulations (1990s), and a host of instruments to sample the boundary layer in situ and remotely from the surface, the air, and space. Near-surface flux-profile relationships were developed rapidly between the 1940s and 1970s, when rapid progress shifted to the fair-weather convective boundary layer (CBL), though tropical CBL studies date back to the 1940s. In the 1980s, ABL research began to include the interaction of the ABL with the surface and clouds, the first ABL parameterization schemes emerged; and land surface and ocean surface model development blossomed. Research in subsequent decades has focused on more complex ABLs, often identified by shortcomings or uncertainties in weather and climate models, including the stable boundary layer, the Arctic boundary layer, cloudy boundary layers, and ABLs over heterogeneous surfaces (including cities). The paper closes with a brief summary, some lessons learned, and a look to the future.
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Hu, Xiao-Ming, Jianping Huang, Jose D. Fuentes, Renate Forkel, and Ning Zhang. "Advances in Boundary-Layer/Air Pollution Meteorology." Advances in Meteorology 2016 (2016): 1–2. http://dx.doi.org/10.1155/2016/2825019.

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Rotach, M. W., R. Vogt, C. Bernhofer, E. Batchvarova, A. Christen, A. Clappier, B. Feddersen, et al. "BUBBLE – an Urban Boundary Layer Meteorology Project." Theoretical and Applied Climatology 81, no. 3-4 (March 31, 2005): 231–61. http://dx.doi.org/10.1007/s00704-004-0117-9.

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Garratt, J. R., and E. Fedorovich. "Introducing Research Letters to Boundary-Layer Meteorology." Boundary-Layer Meteorology 154, no. 3 (January 9, 2015): 349–50. http://dx.doi.org/10.1007/s10546-014-9998-z.

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Garratt, John. "50th Anniversary Issue of Boundary-Layer Meteorology." Boundary-Layer Meteorology 177, no. 2-3 (September 12, 2020): 149–51. http://dx.doi.org/10.1007/s10546-020-00566-1.

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Heinemann, Günther. "The polar regions: a natural laboratory for boundary layer meteorology a review." Meteorologische Zeitschrift 17, no. 5 (October 27, 2008): 589–601. http://dx.doi.org/10.1127/0941-2948/2008/0327.

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Slater, Jessica, Juha Tonttila, Gordon McFiggans, Paul Connolly, Sami Romakkaniemi, Thomas Kühn, and Hugh Coe. "Using a coupled large-eddy simulation–aerosol radiation model to investigate urban haze: sensitivity to aerosol loading and meteorological conditions." Atmospheric Chemistry and Physics 20, no. 20 (October 22, 2020): 11893–906. http://dx.doi.org/10.5194/acp-20-11893-2020.

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Abstract. The aerosol–radiation–meteorology feedback loop is the process by which aerosols interact with solar radiation to influence boundary layer meteorology. Through this feedback, aerosols cause cooling of the surface, resulting in reduced buoyant turbulence, enhanced atmospheric stratification and suppressed boundary layer growth. These changes in meteorology result in the accumulation of aerosols in a shallow boundary layer, which can enhance the extent of aerosol–radiation interactions. The feedback effect is thought to be important during periods of high aerosol concentrations, for example, during urban haze. However, direct quantification and isolation of the factors and processes affecting the feedback loop have thus far been limited to observations and low-resolution modelling studies. The coupled large-eddy simulation (LES)–aerosol model, the University of California, Los Angeles large-eddy simulation – Sectional Aerosol Scheme for Large Scale Applications (UCLALES-SALSA), allows for direct interpretation on the sensitivity of boundary layer dynamics to aerosol perturbations. In this work, UCLALES-SALSA has for the first time been explicitly set up to model the urban environment, including addition of an anthropogenic heat flux and treatment of heat storage terms, to examine the sensitivity of meteorology to the newly coupled aerosol–radiation scheme. We find that (a) sensitivity of boundary layer dynamics in the model to initial meteorological conditions is extremely high, (b) simulations with high aerosol loading (220 µg m−3) compared to low aerosol loading (55 µg m−3) cause overall surface cooling and a reduction in sensible heat flux, turbulent kinetic energy and planetary boundary layer height for all 3 d examined, and (c) initial meteorological conditions impact the vertical distribution of aerosols throughout the day.
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Lee, Xuhui, Zhiqiu Gao, Chaolin Zhang, Fei Chen, Yinqiao Hu, Weimei Jiang, Shuhua Liu, et al. "Priorities for Boundary Layer Meteorology Research in China." Bulletin of the American Meteorological Society 96, no. 9 (September 1, 2015): ES149—ES151. http://dx.doi.org/10.1175/bams-d-14-00278.1.

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Dissertations / Theses on the topic "Boundary layer (Meteorology)"

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Johansson, Cecilia. "Influence of External Factors on the Turbulence Structure in the Atmospheric Boundary Layer." Doctoral thesis, Uppsala University, Department of Earth Sciences, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3221.

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The theory used in today’s weather- and climate models to describe processes near the earth’s surface, i.e. transport of heat, moisture and momentum between the ground and the atmosphere, is based on the idea that only local factors are important, such as temperature and wind speed near the ground. However, from measurements made at two sites, one agricultural and one marine, it has been found that large eddies, which are related to the convective boundary layer height, influence the turbulence structure near the ground during unstable conditions more than previously realized. Especially the momentum transport is affected. The large eddies have similar size over land and over the sea, typically 1000 m. The important difference being that over land diurnal variation plays a fundamental role; over the sea such variations are typically absent.

From the marine site it has also been found that the turbulence structure of the temperature field over the Baltic Sea is very different from over land. Instead of having a height dependence as expected from theory, the temperature structure seems to be constant with height within the surface layer.

Typically, the heat flux over the sea is smaller than over land during convective conditions. This gives rise to a turbulence transport regime which is fundamentally different from that observed during daytime convective conditions over land.

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Stevens, David Eric. "An adaptive multilevel method for boundary layer meteorology /." Thesis, Connect to this title online; UW restricted, 1994. http://hdl.handle.net/1773/6776.

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MacKinnon, Andrew David. "VHF Boundary Layer Radar and RASS." Title page, abstract and table of contents, 2001. http://hdl.handle.net/2440/37807.

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This thesis describes the refinements, modifications and additions to a prototype Very High Frequency (VHF) Boundary Layer (BL) Spaced Antenna (SA) radar initially installed at the University of Adelaide's Buckland Park field site in 1997. Previous radar observations of the lowest few kilometres of the atmosphere, in particular the Atmospheric Boundary Layer, have used Ultra-High Frequency (UHF) radars. Unlike VHF radars, UHF radars are extremely sensitive to hydro-meteors and have difficulty in distinguishing clear-air echoes from precipitation returns. The advantages and requirements of using a VHF radar to observe the lowest heights is discussed in conjunction with some of the limitations. The successful operation of the system over long periods has enabled in-depth investigation of the performance of the system in a variety of conditions and locations. Observations were made from as low as 300m and as high as 8 km, dependent upon conditions. Comparisons between the radar and alternative wind measuring devices were carried out and examined. The antenna system of the radar is a critical component which was analysed in depth and subsequently re-designed. Through the use of numerical models and mea- surements, evaluation of different designs was accomplished. Further calibration of the remaining components of the full system has enabled estimations of the absolute received power. Additional parameters which can be derived with a calibrated radar were compared with values obtained by other authors, giving favourable results. Full Correlation Analysis (FCA) is the predominant technique used in this work. A brief discussion of the background theory and parameters which can be measured is described. A simple one-dimensional model was developed and combined with a 'radar backscatter model' to investigate potential sources of errors in the parameters determined using FCA with the VHF Boundary Layer Radar. In particular, underes- timations in the wind velocity were examined. The integration of a Radio Acoustic Sounding System (RASS) to obtain tempera- ture profiles is discussed. The theory of RASS measurements including the limitations and considerations which are required for the VHF BL radar are given. The difficulties encountered trying to implement such a system and the subsequent success using a Stratospheric Tropospheric (ST) Profiler in place of the BL radar is presented. Taken as a whole this thesis shows the success of the VHF BL to obtain mea- surements from as low as 300m. The validation of this prototype radar provides an alternative and, in certain situations, a superior device with which to study the lower troposphere.
Thesis (Ph.D.)--Department of Physics and Mathematical Physics, 2001.
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Potvin, Guy. "The application of RASS in urban boundary layer meteorology." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0019/NQ44556.pdf.

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Carlsson, Magnus. "The stable boundary layer over the ice covered Bothnian Bay." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-392449.

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The turbulence structure in a stable boundary layer over ice has been studied. Data from the Bothnian Bay, measured during the BASIS field campaign in February/March 1998, have been used. Turbulence as well as wind- and temperature profiles were measured at three sites. The sites were Umeå at the Swedish East Coast, Kokkola at the Finnish West Coast and the ship R/V Aranda outside the Finnish coast.  Turbulence parameters are studied in terms of their stability dependence. At stronger stability σu/u*, σv/u* and σw/u* all increase with stability. At near neutral stratification σw/u* increases with height. A linear dependence of the pressure gradient scale ln(zf/u*) is seen for σw/u* in the interval 0<z/L<0.1. σw/σu  first increases and then decreases with stability in agreement with earlier results. From the results it is concluded that the turbulence structure in the stable boundary layer over ice follows the Monin-Obukhov similarity theory. In some of the studied parameters the results from the Umeå site deviate from the other two. Since Umeå has a larger measuring height (10 m) than the other two (2 and 3.5 m) the conclusion is drawn that the surface layer height is lower than 10 m.  Data from the Umeå site has been used to study atmospheric phenomena that develop over the marginal ice zone. During two days two phenomena were observed that were triggered by the temperature difference between ice and water - a stable internal boundary layer and an ’ice breeze’ similar to the land breeze. The development of the internal boundary layer has been studied by using an expression for internal boundary layer height. A criterion earlier used to forecast the sea breeze has been shown to be suitable also for the ’ice breeze’.
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Andrae, Ulf. "Turbulence structures in a non-stationary marine atmospheric boundary layer." Thesis, Uppsala universitet, Meteorologiska institutionen, 1996. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-392332.

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The vertical structure in the coastal marine atmosphere has been investigated using data from aircraft measurements performed along the Blekinge coast. The present data are from the third of October 1990. The main feature is fairly homogeneous horizontal conditions and a subceeing boundary layer which lowers from 600 meters down to about 50 meters during the day. The turbulence were found to be in a decreasing state. The turbulence parameters were normalized using normal stationary scaling, in order to compare with other results.
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Anderson, Philip Stuart. "Aspects of the Antarctic boundary layer." Thesis, Lancaster University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239832.

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Schafer, Robert. "Tropical island boundary layer structure and development /." [Sydney : University of Technology, Sydney], 1998. http://grison.colorado.edu/Robert/paper/phd.pdf.

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Lee-Thorp, Andrew Michael. "The atmospheric boundary layer above the Agulhas current." Master's thesis, University of Cape Town, 1996. http://hdl.handle.net/11427/19455.

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This thesis describes the atmospheric boundary layer above the Agulhas Current using shipboard meteorological measurements and rawinsonde ascents. The juxtaposition of the warm Agulhas Current and cool shelf waters is shown to have far-reaching effects on the overlying atmosphere. Air-sea fluxes of momentum, sensible and latent heat and resultant boundary layer characteristics demonstrate high horizontal inhomogeneity. The results suggest that this inhomogeneity is permanent. The spatial heat flux gradient is reflected in the overlying atmosphere by a transition in stability of the boundary layer and potential cumulus formation from the cool shelf to the warm current. For airflow perpendicular to the Agulhas Current an internal boundary layer was observed to develop at the inshore sea surface temperature front. Onshore-moving air accumulated a significant quantity of moisture during its trajectory over the current. When airflow is parallel to the current an atmospheric moisture front exists along the axis of the inshore sea surface temperature front. The mean thermodynamic structure of the atmosphere was investigated. An inversion capped the boundary layer whilst a second, higher-level subsidence inversion was found which acts to limit the vertical development of cumulus clouds and therefore the redistribution of heat and moisture above the boundary layer. The results presented in this thesis are useful in two ways. The Agulhas Current has frequently been linked to South African climate. This is the first dedicated study which quantifies and characterizes the atmospheric boundary layer in this region. Secondly, maritime airmasses are dramatically modified above the Agulhas Current. The resultant large horizontal inhomogeneity, its vertical extent and permanence suggest that its inclusion is vital to any successful climate model. Atmospheric general circulation models have been criticized for not taking into account regions of strong horizontal inhomogeneity. The results of this thesis support this argument and highlight the need for similar studies. Bibliography: pages 116-123.
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Whisenhant, Michelle K. "Turbulence parameterizations for convective boundary layers in high-resolution mesoscale models." Diss., Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Dec%5FWhisenhant%5FPhD.pdf.

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Books on the topic "Boundary layer (Meteorology)"

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Dynamics, National Research Council (U S. ). Naval Studies Board Panel on Boundary Layer. Boundary layer dynamics. Washington, D.C: National Academy Press, 1997.

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Lee, Xuhui. Fundamentals of Boundary-Layer Meteorology. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-60853-2.

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Lee, Xuhui. Fundamentals of Boundary-Layer Meteorology. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-32668-4.

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Oke, T. R. Boundary Layer Climates. London: Taylor & Francis Group Plc, 2004.

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Oke, T. R. Boundary layer climates. 2nd ed. London: Methuen, 1987.

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Garratt, J. R. The atmospheric boundary layer. Cambridge: Cambridge University Press, 1994.

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Garratt, J. R. The atmospheric boundary layer. Cambridge: Cambridge University Press, 1992.

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Stull, Roland B., ed. An Introduction to Boundary Layer Meteorology. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-3027-8.

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Stull, Roland B. An Introduction to Boundary Layer Meteorology. Dordrecht: Springer Netherlands, 1988.

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E, Munn R., Garratt J. R, and Taylor P. A, eds. Boundary-layer meteorology, 25th anniversary volume, 1970-1995: Invited reviews and selected contributions to recognise Ted Munn's contribution as editor over the past 25 years. Dordrecht: Kluwer Academic Publishers, 1996.

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Book chapters on the topic "Boundary layer (Meteorology)"

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Spiridonov, Vlado, and Mladjen Ćurić. "Atmospheric Boundary Layer (ABL)." In Fundamentals of Meteorology, 219–28. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-52655-9_14.

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Stull, Roland B. "Stable Boundary Layer." In An Introduction to Boundary Layer Meteorology, 499–543. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-3027-8_12.

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Stull, Roland B. "Boundary Layer Clouds." In An Introduction to Boundary Layer Meteorology, 545–85. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-3027-8_13.

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Kropfli, Robert A. "The Atmospheric Boundary Layer: Panel Report." In Radar in Meteorology, 528–33. Boston, MA: American Meteorological Society, 1990. http://dx.doi.org/10.1007/978-1-935704-15-7_36.

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Stull, Roland B. "Mean Boundary Layer Characteristics." In An Introduction to Boundary Layer Meteorology, 1–27. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-3027-8_1.

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Panchev, S. "The Dynamics of the Atmospheric Planetary Boundary Layer." In Dynamic Meteorology, 275–308. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5221-8_10.

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Stull, Roland B. "Convective Mixed Layer." In An Introduction to Boundary Layer Meteorology, 441–97. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-3027-8_11.

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Gossard, Earl E. "Radar Research on the Atmospheric Boundary Layer." In Radar in Meteorology, 477–527. Boston, MA: American Meteorological Society, 1990. http://dx.doi.org/10.1007/978-1-935704-15-7_35.

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Stull, Roland B. "Boundary Conditions and Surface Forcings." In An Introduction to Boundary Layer Meteorology, 251–94. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-3027-8_7.

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Munn, R. E. "Publications by Professor H. A. Panofsky in Boundary-Layer Meteorology." In Boundary Layer Studies and Applications, 15–16. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0975-5_2.

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Conference papers on the topic "Boundary layer (Meteorology)"

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Qiao, Xiayan, Xuebo Fan, Lin Li, Luyu Xue, Ziyue Zhang, and Ye Tian. "Observation of atmospheric boundary layer height by ceilometer and study of its application." In 2019 International Conference on Meteorology Observations (ICMO). IEEE, 2019. http://dx.doi.org/10.1109/icmo49322.2019.9026048.

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Kolev, I., B. Kaprielov, and B. Tatarov. "Use of Polarization Lidar for Investigation of the Atmospheric Planetary Boundary Layer." In The European Conference on Lasers and Electro-Optics. Washington, D.C.: Optica Publishing Group, 1996. http://dx.doi.org/10.1364/cleo_europe.1996.ctuk3.

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The lidar studies of the polarization characteristics of natural and anthropogenic atmospheric objects have been actively pursued in recent years both in their experimental and theoretical aspects for the needs of the applied meteorology and ecology.
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Zhou, Qing, Yong Zhang, Junli Jin, Peng Yan, Mengyun Lou, Shanshan Lv, and Jiajia Mao. "Comparison of Atmospheric Boundary Layer Height Retrieved from Radiosonde and Groundbased Microwave Radiometer Measurements." In 2019 International Conference on Meteorology Observations (ICMO). IEEE, 2019. http://dx.doi.org/10.1109/icmo49322.2019.9026100.

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Lou, Mengyun, Qing Zhou, Junli Jin, Yan Peng, Rui Dai, Yong Zhang, and Jianping Guo. "The Linkages between Atmospheric Boundary Layer and PM 2.5 from Different Region in China." In 2019 International Conference on Meteorology Observations (ICMO). IEEE, 2019. http://dx.doi.org/10.1109/icmo49322.2019.9026117.

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Werner, Christian, Victor Banakh, Friedrich Köpp, and Igor Smalikho. "Wind Profiler for the Atmospheric Boundary L." In Coherent Laser Radar. Washington, D.C.: Optica Publishing Group, 1995. http://dx.doi.org/10.1364/clr.1995.ma4.

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The wind field and turbulence of the atmospheric boundary layer are important parameters for various application fields, like meteorology, atmospheric physics, environmental protection, wind-energy utilization, air-traffic control, and-so-on. Their high variability in spatial and temporal scales necessitates a fast remote-sensing method. From the available techniques the Doppler Lidar has proved to be the most promising candidate. Therefore, DLR has combined its well established Laser Doppler Anemometer (LDA) and its laser-based Ceilometer with a Sonic Anemometer. The laser systems are working in the eye-safe wavelength respectively energy region. These subsystems are forming the so-called DLR Windprofiler which is characterized by compact design and half-automatic operation.
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Pearson, G. N., and C. G. Collier. "A Compact Pulsed Coherent CO2 Laser Radar for Urban Meteorology." In The European Conference on Lasers and Electro-Optics. Washington, D.C.: Optica Publishing Group, 1998. http://dx.doi.org/10.1364/cleo_europe.1998.cmi3.

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Cities have a profound impact on the local climate, particularly upon wind flow and the distribution of precipitation, since they generate large land surface inhomogeneities which may lead to local wind circulations. Pulsed Doppler laser radar can provide unique data relevant to various aspects of these local climate issues. The inherent angular and spatial resolution, the ability to detect returns from ‘clear-air’ and the lack of ground clutter enables such systems to yield valuable information pertinent to a wide range of boundary layer and tropospheric phenomena.
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Kolev, I., O. Parvanov, B. Kaprielov, and E. Donev. "Lidar and in situ Study of the Vertical Structure of the Atmospheric Planetary Boundary Layer Over Urban Area." In The European Conference on Lasers and Electro-Optics. Washington, D.C.: Optica Publishing Group, 1996. http://dx.doi.org/10.1364/cleo_europe.1996.ctuk5.

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Monitoring of ambient air quality can be carried out either measuring the various pollutants in the atmosphere or sounding the planetary boundary layer (PBL), assuming that the number and distribution of the air pollutant sources remain the same. In terms of PBL meteorology low level stability, inversion distribution, buoyancy, turbulence strength, mixing height, wind velocity and direction are some of the meteorological parameters that need to be monitored. The remote sensors, in comparison to the in situ sensors, can provide such data continuously in both space and time with a better resolution.
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Takeuchi, Nobuo, Hiroshi Okumura, Tadashi Sugita, Hironori Matsumoto, Shigesumi Kuwashima, and Satoshi Yamaguchi. "Observation of Sea Fog Incursion with a Diode-Pumped YAG Portable Lidar." In Optical Remote Sensing of the Atmosphere. Washington, D.C.: Optica Publishing Group, 1993. http://dx.doi.org/10.1364/orsa.1993.tud.23.

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A portable lidar system has been strongly desired for the measurement of local area air pollution, boundary layer meteorology, plume dispersion and cloud physics. However, so far a compact and convenient lidar system has not been well developed. One of the authors constructed a pseudorandom code lidar (RM-CW lidar) system using a diode laser as a light source[1]. It has a limited performance due to the limited power. We proposed and presented a new system[2-3] based on a high repetitive operation, where we adopted a whole solid system using of a Q-switched diode-pumped YAG laser and an avalanche photodiode(APD). Here we report its application to a sea fog observation.
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Kolev, I., O. Parvanov, and B. Kaprielov. "Lidar monitoring of air pollution over urban area." In The European Conference on Lasers and Electro-Optics. Washington, D.C.: Optica Publishing Group, 1994. http://dx.doi.org/10.1364/cleo_europe.1994.cwf17.

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Monitoring of ambient air quality can be carried out either measuring the various pollutants in the atmosphere or sounding the planetary boundary layer (PBL), assuming that the number and distribution of the air pollutant sources remain the same. In terms of PBL meteorology low level stability, inversion distribution, buoyancy, turbulence strength, mixing height, wind velocity, and mesoscale flow patterns are some of the meteorological parameters that need to be monitored. The remote sensors, in comparison to the in situ sensors, can provide such data continuously in both space and time with a better resolution.
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Rybchynska, Valeriia, and Mykhailo Savenets. "The methodology for burning efficiency estimation in Ukraine using NO2/CO ratio." In International Conference of Young Scientists on Meteorology, Hydrology and Environmental Monitoring. Ukrainian Hydrometeorological Institute, 2023. http://dx.doi.org/10.15407/icys-mhem.2023.036.

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Atmospheric chemistry transport modeling and air quality decision-making rely on the input emissions data. Due to the existing uncertainties in emission inventories that come from the biases in assessment methodologies, huge efforts are made towards combining various approaches based on different data sources. Information about ratios of chemical compounds provides us with valuable knowledge about changes in fuel consumption by anthropogenic emission sources and natural air pollution releases. NO2/CO ratio is among the most popular parameters for estimating burning efficiency that can be applied for remote sensing data. In this study we present the methodology for burning efficiency estimation relevant for Ukrainian territory. We used seven pre-war case studies including three days for Kyiv (representing the variety of emission sources), two days for Mariupol (representing prevailing coal-fired industries), and two days for wildfires as reference cases for comparison. The methodology was developed using NO2 and CO total columns (remote sensing by TROPOMI – Sentinel-5P), supported by the boundary layer height and wind parameters from the ERA-5 reanalysis. The methodology consists of four main steps: (1) NO2 and CO filtering using cloudiness and a quality assurance index; (2) meteorological data processing for obtaining the prevailing wind field at the top of the boundary layer; (3) NO2 and CO content processing over emission sources and in the background; and (4) computation of NO2/CO ratio. The methodology testing reveals applicability for NO2/CO ratio usage over Ukraine as for assessing the changes in fuel consumption, so also for further correction of emission factors. For selected case studies, NO2/CO ratio equals 2.6 to 6.5 for wildfires, 3.1 to 4.6 for Mariupol, and 10.8 to 31.7 for Kyiv.
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Reports on the topic "Boundary layer (Meteorology)"

1

Friehe, Carl A. Japan/East Sea Air-Sea Interaction and Meteorology: Boundary-Layer Structure and Model Validation. Fort Belvoir, VA: Defense Technical Information Center, September 2000. http://dx.doi.org/10.21236/ada610245.

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2

Friehe, Carl A., and Djamal Khelif. Japan/East Sea Air-Sea Interaction and Meteorology: Boundary-Layer Structure and Model Validation. Fort Belvoir, VA: Defense Technical Information Center, August 2001. http://dx.doi.org/10.21236/ada625707.

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3

Friehe, Carl A., and Djamal Khelif. Japan/East Sea Air-Sea Interaction and Meteorology: Boundary-Layer Structure and Model Validation. Fort Belvoir, VA: Defense Technical Information Center, September 2002. http://dx.doi.org/10.21236/ada626447.

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