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首页> 外文会议>Conference on Highly Innovative Space Telescope Concepts; Aug 22-23, 2002; Waikoloa, Hawaii, USA >Looking down: Large microwave apertures for meteorological and oceanographic remote sensing
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Looking down: Large microwave apertures for meteorological and oceanographic remote sensing

机译：往下看：大的微波孔径可用于气象和海洋遥感

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摘要

The design strategy for environmental satellite constellations relies upon low orbiting satellites to provide global, high-resolution synoptic data and geostationary satellites to provide continuous observations of rapidly evolving local events. The latter category includes storm systems and, with the advent of cloud-track and water vapor winds, winds aloft. This division of labor is an architectural convenience for visual and infrared sensors but a necessity for microwave sensors. In fact, the typical ground resolution of microwave sensors on low orbiters is barely acceptable. Unfortunately, microwave sensors are preferable to visual and infrared systems for many applications including sea-surface temperature and wind measurement and the only viable method for remotely sensing sea surface salinity. Microwave sensors are also preferable for some atmospheric sounding applications because they are relatively insensitive to cloud cover. The most important cases where microwave sensors are preferred, those related to diagnosing the evolution of severe storm activity, require the highest spatial resolution and are best done with geostationary satellites. In particular, microwave sounding would be an ideal capability for a geostationary weather satellite.
机译：环境卫星星座的设计策略依赖于低轨道卫星来提供全球高分辨率的天气数据，而对地静止卫星则能够对快速发展的本地事件进行连续观测。后一类包括暴风雨系统，并且随着云迹和水蒸气风的出现，高空风。这种分工是视觉和红外传感器在结构上的便利，而微波传感器则是必需的。实际上，低轨道上微波传感器的典型地面分辨率几乎是不能接受的。不幸的是，在许多应用中，微波传感器比视觉和红外系统更可取，包括海面温度和风速测量，以及唯一遥感海面盐度的可行方法。对于某些大气探测应用，微波传感器也是优选的，因为它们对云层相对不敏感。首选微波传感器的最重要情况，即与诊断严重风暴活动的演变有关的情况，需要最高的空间分辨率，最好用对地静止卫星来完成。特别是，微波探测将是对地静止气象卫星的理想能力。

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