OBSERVING TROPOSPHERIC WATER-VAPOR BY RADIO OCCULTATION USING THE GLOBAL POSITIONING SYSTEM

被引：80

作者：

KURSINSKI, ER ^{[1
]}

HAJJ, GA ^{[1
]}

HARDY, KR ^{[1
]}

ROMANS, LJ ^{[1
]}

SCHOFIELD, JT ^{[1
]}

机构：

[1] LOCKHEED MARTIN MISSLES & SPACE,PALO ALTO,CA 94304

来源：

GEOPHYSICAL RESEARCH LETTERS | 1995年 / 22卷 / 17期

关键词：

D O I：

10.1029/95GL02127

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Given the importance of water vapor to weather, climate and hydrology, global humidity observations from satellites are critical. At low latitudes, radio occultation observations of Earth's atmosphere using the Global Positioning System (GPS) satellites allow water vapor profiles to be retrieved with accuracies of 10 to 20% below 6 to 7 km altitude and similar to 5% or better within the boundary layer. GPS observations provide a unique combination of accuracy, vertical resolution (less than or equal to 1 km) and insensitivity to cloud and aerosol particles that is well suited to observations of the lower troposphere. These characteristics combined with the inherent stability of radio occultation observations make it an excellent candidate for the measurement of long term trends.

引用

页码：2365 / 2368

页数：4

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