Abstract

Latitudinal and interannual variability of tropospheric total precipitable water (TPW) over the North Atlantic and North Pacific is investigated using a collection of monthly digital maps based on microwave sounding onboard the DMSP satellites in 1988–2020. It is shown that in the Pacific region the TPW was growing linearly, and its increase during the period under consideration reached 1.5 mm. In the atmosphere over the North Atlantic until the early 2000s, the amount of water vapor was also increasing quite rapidly, with a total increase of about 2.5 mm. However, in the subsequent decades, the trend slowed down, reaching a certain plateau. In the Atlantic sector, eight winters were found in interannual variability, which were characterized by a significantly weak transfer of atmospheric heat and moisture from low to high latitudes. They all correspond to the years of the solar activity decline phase.

中文翻译：

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根据卫星微波探测的北大西洋和北太平洋总可降水量的变化

摘要

使用基于 1988-2020 年 DMSP 卫星上的微波探测的月度数字地图集合研究了北大西洋和北太平洋对流层总可降水量 (TPW) 的纬度和年际变率。结果表明，在太平洋地区，TPW 呈线性增长，在考虑期间其增长达到 1.5 毫米。直到 2000 年代初，在北大西洋上空的大气中，水蒸气的量也在迅速增加，总共增加了约 2.5 毫米。然而，在随后的几十年中，这一趋势放缓，达到了一定的平台期。在大西洋地区，发现有 8 个冬季存在年际变率，其特点是大气热量和水分从低纬度地区向高纬度地区的转移显着微弱。