FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1609761876> ?p ?o ?g. }

• W1609761876 abstract "This doctoral dissertation has mainly concentrated on modeling studies of shorter period acoustic-gravity waves propagating in the upper atmosphere. Several cases have been investigated in the literature, which are focusing on the propagation characteristics of high-frequency gravity wave packets. The dissertation consists of five main divisions of which each has its own significance to be addressed, and these five chapters are also bridged in order with each other to present a theme about gravity wave ducting dynamics, energetics, and airglows. The first chapter is served as an introduction of the general topic about atmospheric acoustic-gravity waves. Some of the historical backgrounds are provided as an interesting refreshment and also as a motivation reasoning this scientific research for decades. A new 2-D, time-dependent, and nonlinear model is introduced in the second chapter (the AGE-TIP model, acronymically named atmospheric gravity waves for the Earth plus tides and planetary waves). The model is developed during this entire doctoral study and has carried out almost all research results in this dissertation. The third chapter is a model application for shorter period gravity waves ducted in a thermally stratified atmosphere. In spite of mean winds the thermal ducting occurs because ducted waves are fairly common occurrences in airglow observations. One-dimensional Fourier analysis is applied to identify the ducted wave modes that reside within multiple thermal ducts. Besides, the vertical energy flux and the wave kinetic energy density are derived as wave diagnostic variables to better understand the time-resolved vertical transport of wave energy in the presence of multiple thermal ductings. The fourth chapter is also a model application for shorter period gravity waves, but it instead addresses the propagation of high-frequency gravity waves in the presence of mean background wind shears. The wind structure acts as a significant directional filter to the wave spectra and hence causes noticeable azimuthal variations at higher altitudes. In addition to the spectral analysis applied previously the wave action has been used to interpret the energy coupling between the waves and the mean flow among some atmospheric regions, where the waves are suspected to extract energy from the mean flow at some altitudes and release it to other altitudes. The fifth chapter is a concrete and substantial step connecting theoretical studies and realistic observations through nonlinearly coupling wave dynamic model with airglow chemical reactions. Simulated O (1S) (557.7 nm) airglow images are provided so that they can be compared with observational airglow images. These simulated airglow brightness variations response accordingly with minor species density fluctuations, which are due to propagating and ducting nonlinear gravity waves within related airglow layers. The thermal and wind structures plus the seasonal and geographical variabilities could significantly influence the observed airglow images. By control modeling…" @default.
• W1609761876 created "2016-06-24" @default.
• W1609761876 creator A5001596663 @default.
• W1609761876 date "2007-01-01" @default.
• W1609761876 modified "2023-09-22" @default.
• W1609761876 title "Model studies of time-dependent ducting for high-frequency gravity waves and associated airglow responses in the upper atmosphere" @default.
• W1609761876 cites W1493529671 @default.
• W1609761876 cites W1508866404 @default.
• W1609761876 cites W1964802290 @default.
• W1609761876 cites W1965230004 @default.
• W1609761876 cites W1968352395 @default.
• W1609761876 cites W1970348726 @default.
• W1609761876 cites W1970885220 @default.
• W1609761876 cites W1973548888 @default.
• W1609761876 cites W1973843559 @default.
• W1609761876 cites W1976301452 @default.
• W1609761876 cites W1977195988 @default.
• W1609761876 cites W1977262897 @default.
• W1609761876 cites W1978221671 @default.
• W1609761876 cites W1980999314 @default.
• W1609761876 cites W1981423080 @default.
• W1609761876 cites W1981913440 @default.
• W1609761876 cites W1986603615 @default.
• W1609761876 cites W1986606276 @default.
• W1609761876 cites W1988710082 @default.
• W1609761876 cites W1989268159 @default.
• W1609761876 cites W1992077385 @default.
• W1609761876 cites W1996767958 @default.
• W1609761876 cites W1998268941 @default.
• W1609761876 cites W1998702271 @default.
• W1609761876 cites W2003971453 @default.
• W1609761876 cites W2004252701 @default.
• W1609761876 cites W2006527786 @default.
• W1609761876 cites W2008357764 @default.
• W1609761876 cites W2010336151 @default.
• W1609761876 cites W2012065796 @default.
• W1609761876 cites W2019491610 @default.
• W1609761876 cites W2019812123 @default.
• W1609761876 cites W2020785756 @default.
• W1609761876 cites W2021132832 @default.
• W1609761876 cites W2021324983 @default.
• W1609761876 cites W2025283156 @default.
• W1609761876 cites W2032247619 @default.
• W1609761876 cites W2037707862 @default.
• W1609761876 cites W2039281744 @default.
• W1609761876 cites W2039776998 @default.
• W1609761876 cites W2040457166 @default.
• W1609761876 cites W2041615154 @default.
• W1609761876 cites W2044097390 @default.
• W1609761876 cites W2044619712 @default.
• W1609761876 cites W2045316829 @default.
• W1609761876 cites W2046567664 @default.
• W1609761876 cites W2048755918 @default.
• W1609761876 cites W2049943749 @default.
• W1609761876 cites W2051080066 @default.
• W1609761876 cites W2053915001 @default.
• W1609761876 cites W2057237911 @default.
• W1609761876 cites W2057801776 @default.
• W1609761876 cites W2063314304 @default.
• W1609761876 cites W2063556354 @default.
• W1609761876 cites W2064786928 @default.
• W1609761876 cites W2070324800 @default.
• W1609761876 cites W2070872268 @default.
• W1609761876 cites W2071704318 @default.
• W1609761876 cites W2071742189 @default.
• W1609761876 cites W2073624565 @default.
• W1609761876 cites W2077930242 @default.
• W1609761876 cites W2081168027 @default.
• W1609761876 cites W2084157503 @default.
• W1609761876 cites W2084256732 @default.
• W1609761876 cites W2087008237 @default.
• W1609761876 cites W2091619549 @default.
• W1609761876 cites W2092091512 @default.
• W1609761876 cites W2096495324 @default.
• W1609761876 cites W2096994395 @default.
• W1609761876 cites W2099874890 @default.
• W1609761876 cites W2100181439 @default.
• W1609761876 cites W2104544003 @default.
• W1609761876 cites W2112439739 @default.
• W1609761876 cites W2115891775 @default.
• W1609761876 cites W2117343084 @default.
• W1609761876 cites W2119351952 @default.
• W1609761876 cites W2119992973 @default.
• W1609761876 cites W2121594445 @default.
• W1609761876 cites W2125484402 @default.
• W1609761876 cites W2127157791 @default.
• W1609761876 cites W2128403310 @default.
• W1609761876 cites W2130928922 @default.
• W1609761876 cites W2132510547 @default.
• W1609761876 cites W2137687552 @default.
• W1609761876 cites W2141319951 @default.
• W1609761876 cites W2142516483 @default.
• W1609761876 cites W2147617147 @default.
• W1609761876 cites W2151194938 @default.
• W1609761876 cites W2158993832 @default.
• W1609761876 cites W2164952099 @default.
• W1609761876 cites W2165553433 @default.
• W1609761876 cites W2170149004 @default.
• W1609761876 cites W2173191461 @default.
• W1609761876 cites W3005737455 @default.

• next