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使用太空激光雷达在全球范围内推断气泡云深度

Damien Josset¹, Stephanie Cayula², Magdalena Anguelova³

¹Ocean Sciences Division, U.S. Naval Research Laboratory, NASA Stennis Space Center, John C. Stennis Space Center, MS, 39529, USA. damien.b.josset.civ@us.navy.mil.

Scientific reports

|October 18, 2024

概括

来自CALIPSO卫星的太空激光雷达测量显示了全球泡深度,补充了白帽分数数据. 这些发现有助于我们更好地理解高风速的海洋物理.

科学领域:

海洋学海洋学海洋学
大气科学大气科学
遥感遥感遥感遥感

背景情况:

白帽分数可以通过卫星在全球范围内测量,但泡云是3D的.
基于太空的激光雷达提供了对泡深度的补充观测.

研究的目的:

使用云气溶激光雷达和红外探路器卫星观测 (CALIPSO) 卫星去极化数据量化全球泡深度.
将CALIPSO衍生泡深度与风速和白帽分数数据进行比较.

主要方法:

利用来自CALIPSO卫星的激光雷达测量来通过脱极化确定泡深度.
与先进微波扫描射线仪 (AMSR-E) 和AMSR2.2的风速数据相关联的CALIPSO泡深度.
将CALIPSO气泡深度与来自AMSR2和WindSat的白帽分数数据进行比较.

主要成果:

来自CALIPSO的泡深度显示了全球分布和季节性变化,与高风速 (>7 m/s) 一致.
卡利普索气泡深度和风速之间的关系与浮标测量结果一致.
卡利普索气泡深度与AMSR2和WindSat.的白帽分数数据有相似之处.

结论:

太空中的激光雷达测量对于理解3D气泡属性是有价值的.
这些发现推动了海洋物理学的研究,特别是在高速风速下.

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