a 500 mb synoptic climatology of pacific northwest coast winters in relation to climatic...

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I000 OLR (1985) 32 {12) abstract.) Inst. of Appl. Math., Acad. Sin., Beijing, People's Republic of China. 85:6958 Li, Wei and Ching Jen Chen, 1985. On prediction of characteristics for vertical round buoyant jets in stably linear stratified environment. J. hydraul. Res., 23(2):115-129. Wuhan Inst. of Hydraulic and Elec. Engrg., Wuhan, Hubei, People's Republic of China. 85:6959 Verron, J. and C. Le Provost, 1985. A numerical study of quasi--geostrophic flow over isolated topography. J. Fluid Mech., 154:231-252. The model is based on the quasi-geostrophic vortic- ity equation, where the dissipation terms have been retained. On the f-plane, the ultimate solution is always characterized by a typical vorticity field with an anticyclonic vortex trapped over the topography, but different transient regimes occur, related to the importance of advection versus topography effect. On the fl-plane, and for prograde flows, the situation is complicated by a Rossby wave pattern extending mainly downstream but also having an upstream component corresponding to zonal waves. For retrograde flows the obstacle does not excite Rossby waves but a transient response with zonal waves whose lifetime depends on the nonlinearity. Inst. de Mecan. de Grenoble, France. B. MARINE METEOROLOGY BI0. Apparatus and methods 85:6960 Pitari, G. and G. Visconti, 1984. Preliminary results and validation of a 2-D iatmospheric photo- chemical] model employing a residual circulation formalism. Nuovo Cim., (C)7(6):699-713. The approach uses a residual mean calculation and a set of eddy diffusion coefficients obtained from a general circulation model of the stratosphere; this reduces the importance of the eddy diffusion coefficients. Results for NO~(NO+NO2), odd hy- drogen, HNO3, HCI, and C10 show that predictions are comparable to existing parameterized 2-D model predictions. Dipt. di Fisica, Univ. degli Studi, 67100 L'Aquila, Italy. field. Results are compared with a similar study of the summer period. Dept. of Geogr., Univ of Waterloo, ON N2L 3G1, Canada. (fcs) 85:6962 Yarnal, Brent, 1985. A 500 nab synoptic climatology of Pacific northwest coast winters in relation to climatic variability, 1948-1949 to 1977-1978. J~ Climatol., 5(3):237-252. Year-to-year changes in the winter climate of the Pacific northwest coast are shown to be associated with fluctuations in synoptic type frequencies. But, as expected, the associations are modified by systematic within-type changes occurring during a specific climatological regime. CIRES, Univ. of Colorado, Boulder, CO 80309, USA. (fcs) B40. Area studies, surveys, weather 85:6961 Ledrew, E.F., 1985. The dynamic cl~t~logy of the Beaufort to Laptev sea sector of the Polar Basin for the winters of 1975 and 1976. J. Climatol., 5(3):253-272. NMC grid data is used to examine the relative contributions of advective properties in the regional air flow, and the heating and topographic charac- teristics of the surface to the total vertical circulation 1180. Radiation 85:6963 Prasad, K.D. and R.K. Verma, 1985. Large--scale features of satemte-dorlved ~ long-wave radiation in relation to monsoon circulation over the Indian region. J. Climatol., 5(3):297-306. Because outgoing long-wave radiation (OLR) in the tropics is largely modulated by cloudiness, its satellite-derived values are a promising tool for

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Page 1: A 500 mb synoptic climatology of Pacific northwest coast winters in relation to climatic variability, 1948–1949 to 1977–1978

I000 OLR (1985) 32 { 12)

abstract.) Inst. of Appl. Math., Acad. Sin., Beijing, People's Republic of China.

85:6958 Li, Wei and Ching Jen Chen, 1985. On prediction of

characteristics for vertical round buoyant jets in stably linear stratified environment. J. hydraul. Res., 23(2):115-129. Wuhan Inst. of Hydraulic and Elec. Engrg., Wuhan, Hubei, People's Republic of China.

85:6959 Verron, J. and C. Le Provost, 1985. A numerical

study of quasi--geostrophic flow over isolated topography. J. Fluid Mech., 154:231-252.

The model is based on the quasi-geostrophic vortic- ity equation, where the dissipation terms have been retained. On the f-plane, the ultimate solution is always characterized by a typical vorticity field with an anticyclonic vortex trapped over the topography, but different transient regimes occur, related to the importance of advection versus topography effect. On the fl-plane, and for prograde flows, the situation is complicated by a Rossby wave pattern extending mainly downstream but also having an upstream component corresponding to zonal waves. For retrograde flows the obstacle does not excite Rossby waves but a transient response with zonal waves whose lifetime depends on the nonlinearity. Inst. de Mecan. de Grenoble, France.

B. MARINE METEOROLOGY

BI0. Apparatus and methods

85:6960 Pitari, G. and G. Visconti, 1984. Preliminary results

and validation of a 2-D iatmospheric photo- chemical] model employing a residual circulation formalism. Nuovo Cim., (C)7(6):699-713.

The approach uses a residual mean calculation and a set of eddy diffusion coefficients obtained from a general circulation model of the stratosphere; this reduces the importance of the eddy diffusion coefficients. Results for NO~(NO+NO2), odd hy- drogen, HNO3, HCI, and C10 show that predictions are comparable to existing parameterized 2-D model predictions. Dipt. di Fisica, Univ. degli Studi, 67100 L'Aquila, Italy.

field. Results are compared with a similar study of the summer period. Dept. of Geogr., Univ of Waterloo, ON N2L 3G1, Canada. (fcs)

85:6962 Yarnal, Brent, 1985. A 500 nab synoptic climatology

of Pacific northwest coast winters in relation to climatic variability, 1948-1949 to 1977-1978. J~ Climatol., 5(3):237-252.

Year-to-year changes in the winter climate of the Pacific northwest coast are shown to be associated with fluctuations in synoptic type frequencies. But, as expected, the associations are modified by systematic within-type changes occurring during a specific climatological regime. CIRES, Univ. of Colorado, Boulder, CO 80309, USA. (fcs)

B40. Area studies, surveys, weather

85:6961 Ledrew, E.F., 1985. The dynamic c l ~ t ~ l o g y of the

Beaufort to Laptev sea sector of the Polar Basin for the winters of 1975 and 1976. J. Climatol., 5(3):253-272.

NMC grid data is used to examine the relative contributions of advective properties in the regional air flow, and the heating and topographic charac- teristics of the surface to the total vertical circulation

1180. Radiation

85:6963 Prasad, K.D. and R.K. Verma, 1985. Large--scale

features of satemte-dorlved ~ long-wave radiation in relation to monsoon circulation over the Indian region. J. Climatol., 5(3):297-306.

Because outgoing long-wave radiation (OLR) in the tropics is largely modulated by cloudiness, its satellite-derived values are a promising tool for