| DOI: | 10.1002/2015GL063856
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| 论文题名: | Retrieving high-resolution tropospheric gradients from multiconstellation GNSS observations |
| 作者: | Li X.; Zus F.; Lu C.; Ning T.; Dick G.; Ge M.; Wickert J.; Schuh H.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9396
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| EISSN: | 1944-9127
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| 出版年: | 2015
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| 卷: | 42, 期:10 | | 起始页码: | 4173
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| 结束页码: | 4181
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| 语种: | 英语
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| 英文关键词: | GNSS meteorology
; high-resolution tropospheric gradient
; multiconstellation GNSS
; numerical weather model
; water vapor radiometer
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| Scopus关键词: | Numerical models
; Radiometers
; Troposphere
; Water vapor
; Weather forecasting
; Global Navigation Satellite Systems
; High resolution
; Meteorological studies
; Multiconstellation GNSS
; Numerical weather model
; Numerical weather prediction
; Processing systems
; Water vapor radiometers
; Global positioning system
; climate prediction
; GNSS
; GPS
; humidity
; image processing
; model validation
; numerical model
; troposphere
; water vapor
; weather forecasting
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| 英文摘要: | The developing multi-Global Navigation Satellite Systems (GNSS) constellations have the potential to provide accurate high-resolution tropospheric gradients. Such data, closely linked to strong humidity gradients accompanying severe weather phenomena, are considered a new important data source for meteorological studies, e.g., nowcasting of severe rainfall events. Here we describe the development of a multi-GNSS processing system for the precise retrieval of high-resolution tropospheric gradients. The retrieved products were validated by using independent water vapor radiometer (WVR) observations and numerical weather model (NWM) data. The multi-GNSS high-resolution gradients agree well with those, derived from NWM and WVR, especially for the fast-changing peaks which were mostly associated with synoptic fronts. Compared to GPS-only gradients, the correlations with the validation data are significantly improved up to 20-35%. The new data product has significant potential to improve numerical weather prediction and to advance meteorological studies. ©2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84931572671&doi=10.1002%2f2015GL063856&partnerID=40&md5=b7e2fa13427cd6fbf413b97dbaabc76a
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/9011
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | German Research Centre for Geosciences, Potsdam, Germany
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| Recommended Citation: | |
Li X.,Zus F.,Lu C.,et al. Retrieving high-resolution tropospheric gradients from multiconstellation GNSS observations[J]. Geophysical Research Letters,2015-01-01,42(10).
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