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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Latitude variation of boundary layer height over Indian Ocean during pre-and First Field Phase (FFP-98) of INDOEX
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Latitude variation of boundary layer height over Indian Ocean during pre-and First Field Phase (FFP-98) of INDOEX

机译：INDOEX的前场和第一场阶段（FFP-98）期间印度洋边界层高度的纬度变化

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摘要

This paper describes the results of the measurement of the Marine Boundary Layer (MBL) height from spectral analysis of the u and v components of the wind and from CLASS/radiosonde temperature profiles. The data were collected on ORV Sagar Kanya during the pre-INDOEX (27 December 1996 through 31 January 1997) and FFP-98 (18 February to 31 March 1998) over the latitude range 15 deg N to 14 deg S and 15 deg N to 20 deg S respectively. During the pre-INDOEX, the MBL heights gradually decrease from 2.5km at 13 deg N to around 500 to 600 m at 10 deg S. Similar results are observed in the return track. The MBL heights (0.5 to 1 km) obtained during FFP-98 are less compared to those obtained during pre-INDOEX. The MBL heights during FFP-98 are less compared to the pre-INDOEX and are believed to be due to the presence of stratus, stratocumulus and cumulus clouds during the cruise period, compared to a relatively cloud free pre-INDOEX cruise.
机译：本文介绍了根据风的u和v分量的频谱分析以及CLASS /探空仪温度剖面对海洋边界层（MBL）高度进行测量的结果。数据是在印度洋（INDOEX）之前（1996年12月27日至1997年1月31日）和FFP-98（1998年2月18日至1998年3月31日）的北纬15度至北纬14度以及北纬15度至北纬分别为20度。在预INDOEX期间，MBL高度从13度N处的2.5公里逐渐减小到10度S处约500至600 m。在返回轨道上也观察到类似的结果。与在INDOEX之前获得的MBL高度相比，在FFP-98期间获得的MBL高度（0.5至1 km）较小。 FFP-98期间的MBL高度比INDOEX之前的水平要小，并且被认为是由于相比于无云的INDOEX之前的巡航，在巡航期间存在层云，层积云和积云。

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