Mesospheric temperature inversion and gravity wave breaking

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Gravity Wave Dynamics in a Mesospheric Inversion Layer: 1. Reflection, Trapping, and Instability Dynamics

An anelastic numerical model is employed to explore the dynamics of gravity waves (GWs) encountering a mesosphere inversion layer (MIL) having a moderate static stability enhancement and a layer of weaker static stability above. Instabilities occur within the MIL when the GW amplitude approaches that required for GW breaking due to compression of the vertical wavelength accompanying the increas...

متن کامل

Lidar measurements of mesospheric temperature inversion at a low latitude

The Rayleigh lidar data collected on 119 nights from March 1998 to February 2000 were used to study the statistical characteristics of the low latitude mesospheric temperature inversion observed over Gadanki (13.5 N, 79.2 E), India. The occurrence frequency of the inversion showed semiannual variation with maxima in the equinoxes and minima in the summer and winter, which was quite different fr...

متن کامل

Observations of mesospheric gravity wave dynamics in the southern hemisphere

Observations of mesospheric OH rotational temperature by the Mesospheric Temperature Mapper located at Cerro Pachon, Chile (30.3°S, 70.7°S) show a large range of variation. Temperature variances reveal increased activity due to mountain waves. Comparative studies with the satellite carried SABER instrument show agreement on nightly, as well as seasonal, temperature measurements. Comparisons wit...

متن کامل

Gravity Wave Generation and Breaking Observedwith Radiosondes at Ushuaia (argentina)

High resolution radiosondes that were launched at Ushuaia (54.8S) during October-December, 1995 are examined. Episodes of high gravity wave activity are found in the lower stratosphere (from 10 km to 24 km). The enhancement of gravity wave activity is ascribed to the conjuction of two factors: gravity wave generation and Doppler-shifting. Two radiosondes with high wave activity cases are examin...

متن کامل

Review of Mesospheric Temperature Trends

[1] In recent times it has become increasingly clear that releases of trace gases from human activity have a potential for causing change in the upper atmosphere. However, our knowledge of systematic changes and trends in the temperature of the mesosphere and lower thermosphere is relatively limited compared to the Earth s lower atmosphere, and not much effort has been made to synthesize these ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Geophysical Research Letters

سال: 1987

ISSN: 0094-8276

DOI: 10.1029/gl014i009p00933