Roles of Rossby and Gravity Waves on Circulation Associated with Tropical and Subtropical Heating
スポンサーリンク
概要
- 論文の詳細を見る
In order to resolve the contradiction between the theories proposed by Rodwell and Hoskins (1996) and Chen et al. (2001), a linear response of global/hemispherical atmosphere to a subtropical heat source is studied, using two different numerical models. The first model treats the response as a linear combination of wave components (Hough functions), which are eigenmodes of the homogeneous equations. The second model is based on quasi-geostrophic approximation. First, the response to zonally uniform heat source is investigated. In the case of the heat source centered at the equator, geopotential and zonal wind perturbation fields are expressed by Rossby and Kelvin modes, while vertical and meridional flows are represented by gravity modes. On the other hand, the case of the heat source centered off the equator reveals that the cell reaching winter hemisphere is dominant due to mixed Rossby-gravity mode. Second, the response to zonally localized heat source centered at 25°N is investigated. The validity of quasi-geostrophic approximation in the subtropics is verified. It is found that the geopotential and horizontal wind perturbation fields can be expressed only by Rossby modes, while the contribution of gravity modes is stronger for the vertical flow. On the basis of these results we calculate the response in the observed basic wind, but the wavetrain shown in Chen et al. (2001) cannot be reproduced. On the other hand, the descent west or northwest of the heat source, which is examined in Rodwell Hoskins (1996), appears in the resting basic field as well as in the basic zonal flow. The mechanism producing this descent is discussed in detail.
- 社団法人日本気象学会の論文
- 2005-08-25
著者
-
Kosaka Yosuke
Department Of Earth And Planetary Science The University Of Tokyo
-
Kosaka Yosuke
Department Of Chemistry Faculty Of Science Saitama University
-
Matsuda Yoshihisa
Department Of Astronomy And Earth Science Tokyo Gakugei University
関連論文
- Dose Control Study on Fentanyl Patch Using Two Types of Covering Material
- Numerical experiments of two-level decaying turbulence on a rotating sphere
- Syntheses and Characterization of Phosphorinecopper(I) Halide Complexes
- Effects of lubricant mixing on compression properties of various kinds of direct compression excipients and physical properties of the tablets
- A Novel Ru(II)-DMSO Complex Having Non-coordinating 1-Naphthoylamide Arm : Effects of Intramolecular Hydrogen Bonding on Redox Potential of the Ruthenium Center
- A Novel and Highly Effective Halogenation of Alkanes with Halides on Oxidation with m-Chloroperbenzoic Acid : Looks Old, but New Reaction
- Synthesis and Characterization of Palladium(II)-Phosphole and -Biphosphole Complexes. Regulation of the Homoleptic Coordination Environment of Square-Planar Palladium(II)
- Numerical experiments on the behavior of Rossby waves in the critical layer
- Effect of Titanium Dioxide on Photostability of Solid-State Mequitazine
- Reactions of Molybdenum(V)porphyrins wuth Phenol Derivatives Involving Parallel Inner and Outer Sphere Electron Transfer
- Binuclear Molybdenum(V)porphyrins Bridged by Benzenediolate or Naphthalenediolate Dianion : Cooperative Coordination Equilibrium of Two Molybdenum Centers Involving Electron Transfer
- Photochemical and Oxidative Degradation of the Solid-State Tretinoin Tocoferil
- Multicomponent Molecular Conductors with Supramolecular Assemblies Prepared from Neutral Iodine-Bearing pBIB (p-Bis(iodoethynyl)benzene) and Derivatives
- Effect of Polymorphic Forms of Bullk Powders on Pharmaceutical Properties of Carbamazepine Granules
- Effect of Polymorphic Transformation During the Extrusion-Granulation Process on the Pharmaceutical Properties of Carbamazepine Granules
- Physicochemical Characterization of Tamoxifen Citrate Pseudopolymorphs, Methanolate and Ethanolate
- Catalytic Hydrocarbon Oxygenation by a Dinuclear Ruthenium (II) Complex with Molecular Oxygen
- Molecular Recognition by a Cu (II)-2,2'-bipyridine Complex Involving Coordination and Hydrogen Bonding
- Evaluation of Titanium Dioxide as a Pharmaceutical Excipient for Preformulation of a Photo-Labile Drug : Effect of Physicochemical Properties on the Photostability of Solid-State Nisoldipine
- A Ruthenium(II)-Pyridylamine Complex Showing a Fluxional Intramolecular π-π Interaction
- Roles of Rossby and Gravity Waves on Circulation Associated with Tropical and Subtropical Heating
- Development of Novel Ozonizer Using Micro-Barrier Discharges Formed in Water
- Syntheses and Characterization of Palladium and Platinum Complexes of Phosphorin
- An Efficient Method for the Synthesis of 4,5-Disubstituted Catechols
- Transition-metal complexes of pyrrole pigments. XIX. Electrochemical and coordination behaviors of (5,10,15,20-tetraphenylporphinato)niobium(V) complexes.
- Transition-metal complexes of pyrrole pigments. XVII. Preparation and spectroscopic properties of corrole complexes.
- Hydrophobic vitamin B12. V Electrochemical carbon-skeleton rearrangement as catalyzed by hydrophobic vitamin B12 : Reaction mechanisms and migratory aptitude of functional groups.
- Transition-metal Complexes of Pyrrole Pigments. X. Divalent and Trivalent Manganese Chelates of Dipyrromethenes
- Transition-metal Complexes of Pyrrole Pigments. III. Copper(II) and Zinc(II) Complexes of 1,19-Dideoxy-8,12-dicarbethoxy-1,3,7,13,17,19-hexamethylbiladiene-ac