| LUO Xiaowen,ZHANG Tao,GAO Jinyao,YANG Chunguo,WU Zaocai. 2015. Estimation of annual variation of water vapor in the Arctic Ocean between 80°-87°N using shipborne GPS data based on kinematic precise point positioning. Acta Oceanologica Sinica, 34(6):1－4 |
| Estimation of annual variation of water vapor in the Arctic Ocean between 80°-87°N using shipborne GPS data based on kinematic precise point positioning |
| 基于船载双频GPS的北极(80-87°)水汽年变化估计 |
| Received:May 27, 2014 Revised:September 16, 2014 |
| DOI：10.1007/s13131-015-0680-1 |
| Key words:annual variation estimation water vapor Arctic Ocean kinematic precise point positioning |
| 中文关键词: 年变化估算 水汽 北冰洋 动态精密单点定位 |
| 基金项目:Chinese Polar Environment Comprehensive Investigation and Assessment Programmes under contract Nos CHINARE 2013-03-03 and CHINARE 2013-04-03; the National Oceanic Commonweal Research Project under contract No. 201105001; the National Natural Science Foundation of China under contract No. 41374043. |
| Author Name | Affiliation | E-mail | | LUO Xiaowen | The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, ChinaKey Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China | cdslxw@163.com | | ZHANG Tao | The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, ChinaKey Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China | | | GAO Jinyao | The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, ChinaKey Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China | | | YANG Chunguo | The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, ChinaKey Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China | | | WU Zaocai | The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, ChinaKey Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China | |
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| Abstract: |
| The measurement of atmospheric water vapor (WV) content and variability is important for meteorological and climatological research. A technique for the remote sensing of atmospheric WV content using ground-based Global Positioning System (GPS) has become available, which can routinely achieve accuracies for integrated WV content of 1-2 kg/m2. Some experimental work has shown that the accuracy of WV measurements from a moving platform is comparable to that of (static) land-based receivers. Extending this technique into the marine environment on a moving platform would be greatly beneficial for many aspects of meteorological research, such as the calibration of satellite data, investigation of the air-sea interface, as well as forecasting and climatological studies. In this study, kinematic precise point positioning has been developed to investigate WV in the Arctic Ocean (80°-87°N) and annual variations are obtained for 2008 and 2012 that are identical to those related to the enhanced greenhouse effect. |
| 中文摘要: |
| 水汽含量及变化是气象和气候研究的一项重要参数。本世纪初发展起来的地基GPS遥感水汽技术能提供高精度(1-2mm)、高时间分辨率和高地面覆盖率的可降水量PWV序列。同时,一些实验表明,基于移动平台的GPS遥感水汽和地基遥感水汽精度相当。因此,为了更好地开展多种气象和气候研究,如卫星数据资料的校准、海空交换面各种特性及气象预报,需要把这个技术扩展到海洋并进行相关研究。基于以上目的,本文把GPS精密单点定位技术应用到北冰洋(80-87°N)地区的水汽研究,同时计算了2008年和2012年水汽的变化量,其变化特性和正在增强的温室效应一致。 |
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