Abstract
In order to evaluate material transports in the upper mesosphere and lower thermosphere (MLT) region, Lagrangian transport experiments are performed using wind fields simulated by the Kyushu University middle atmosphere general circulation model (Miyahara and Miyoshi, 1997; Miyahara et al., 1993). The Lagrangian mean meridional circulation is different from the residual mean circulation defined by the Transformed Eulerian Mean equation system, which is thought to be approximately equal to the Lagrangian mean meridional circulation in the middle atmosphere in case of weak dissipation and transience (Andrews and McIntyre, 1978; Andrews et al., 1987). It is considered that the diffusivity caused by the transience and dissipation of various wave motions in the MLT region has significant effects on the material transport in this region, and makes them different from each other.
| Original language | English |
|---|---|
| Pages (from-to) | 745-750 |
| Number of pages | 6 |
| Journal | earth, planets and space |
| Volume | 51 |
| Issue number | 7-8 |
| DOIs | |
| Publication status | Published - Jan 1 1999 |
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All Science Journal Classification (ASJC) codes
- Geology
- Space and Planetary Science
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Lagrangian transport experiments in the MLT region. / Watanabe, S.; Miyahara, S.; Miyoshi, Yasunobu.
In: earth, planets and space, Vol. 51, No. 7-8, 01.01.1999, p. 745-750.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Lagrangian transport experiments in the MLT region
AU - Watanabe, S.
AU - Miyahara, S.
AU - Miyoshi, Yasunobu
PY - 1999/1/1
Y1 - 1999/1/1
N2 - In order to evaluate material transports in the upper mesosphere and lower thermosphere (MLT) region, Lagrangian transport experiments are performed using wind fields simulated by the Kyushu University middle atmosphere general circulation model (Miyahara and Miyoshi, 1997; Miyahara et al., 1993). The Lagrangian mean meridional circulation is different from the residual mean circulation defined by the Transformed Eulerian Mean equation system, which is thought to be approximately equal to the Lagrangian mean meridional circulation in the middle atmosphere in case of weak dissipation and transience (Andrews and McIntyre, 1978; Andrews et al., 1987). It is considered that the diffusivity caused by the transience and dissipation of various wave motions in the MLT region has significant effects on the material transport in this region, and makes them different from each other.
AB - In order to evaluate material transports in the upper mesosphere and lower thermosphere (MLT) region, Lagrangian transport experiments are performed using wind fields simulated by the Kyushu University middle atmosphere general circulation model (Miyahara and Miyoshi, 1997; Miyahara et al., 1993). The Lagrangian mean meridional circulation is different from the residual mean circulation defined by the Transformed Eulerian Mean equation system, which is thought to be approximately equal to the Lagrangian mean meridional circulation in the middle atmosphere in case of weak dissipation and transience (Andrews and McIntyre, 1978; Andrews et al., 1987). It is considered that the diffusivity caused by the transience and dissipation of various wave motions in the MLT region has significant effects on the material transport in this region, and makes them different from each other.
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U2 - 10.1186/BF03353233
DO - 10.1186/BF03353233
M3 - Article
VL - 51
SP - 745
EP - 750
JO - Earth, Planets and Space
JF - Earth, Planets and Space
SN - 1343-8832
IS - 7-8
ER -