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Naujokat, B.

Publications and source records attributed to Naujokat, B..

5 records
All sourcesNASA NTRSDOE OSTI
NASA NTRS1985

On the Interannual Variability and on Trends of the Temperature in the Middle Atmosphere

The new Reference Atmosphere presented here is based on global satellite data and forms a very useful basis for climatological studies. When using such climatologies it is important to be aware of the well known interannual variability which n themiddle atmosphere is particularly large during the northern winters and southern springs. Variability ofthe upper and lower stratospheres is discussed in detail. Areas covered included the polar region and the middile and lower latitudes. Temperature trends, notably the alteration of the global temperature structure by a number of anthropogenically influenced tract gases or the greenhouse effect is discussed.

Labitzke, K.↗
NASA NTRS1985

Ozone and temperature trends

The measurement of temporal changes in ozone and temperature are discussed. The data are examined within the context of natural atmospheric variability and data problems. The results are compared to numerical model calculations. The major issues are defined in terms of goal achievement. Each parameter is considered in terms of instrument type, long term effects, and altitude.

Labitzke, K.↗
NASA NTRS1983

The first winter of MAP-dynamics, 1982-1983: A winter with three different warming periods

A synoptic description is given for the first winter of the Middle Atmosphere Program's atmospheric dynamics efforts for 1982-83. After a cold early winter period three warming periods were observed at the end of December, the end of January, and the end of February. In March a pronounced late winter cooling occurred in the upper stratosphere, whereas in the lower levels the final warming started slowly, but was not accomplished before mid-April. The momentum budget, calculated from the daily height and temperature charts, is discussed in terms of the divergence of the Eliassen-Palm-Vector.

Naujokat, B.↗
NASA NTRS1983

Temperature effects on the stratosphere of the April 4, 1982 eruption of El Chichon, Mexico

Aerosol evaluation was found to be necessary to explain the 30 mb temperature increases observed in July-Oct. 1982 in comparison with averages for the period 1964-1981. An average difference of 1-1.5 C was determined at 30 mb, coinciding with 1 C deviations at the 50 mb level, for the first half of 1982. The 30 mb differences increased to 4.5-5 C, compared to the 18 yr average, during the July-Oct. period. GOES satellite imagery indicated that material from the El Chichon volcano eruptions had entered the stratosphere. Lidar backscattering ratios indicated the preponderance of the material resided in the 22-28 km interval. Airborne lidar measurements on two occasions confirmed the anomalies' presence south of 30 deg N latitude. Further monitoring of the aerosol evolution is indicated.

Labitzke, K.↗