气候变化领域集成服务门户(CCPortal): On the role of the troposphere in satellite altimetry

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DOI	10.1016/j.rse.2020.112149
	On the role of the troposphere in satellite altimetry
	Fernandes M.J.; Lázaro C.; Vieira T.
发表日期	2021
ISSN	00344257
卷号	252
英文摘要	Satellite radar altimetry is nowadays a powerful and attractive Earth Observation technique of major importance in several applications such as the study of mean sea level change (a crucial climate change indicator), the observation of continental ice sheets' melting or the management of highly sensitive coastal zones and continental water resources. This paper aims at presenting an overview of the effects of the troposphere in satellite radar altimetry range observations, i.e. the tropospheric path delays (PD), and the corresponding corrections required to account for these effects, including those due to neutral gases, the DTC (dry tropospheric correction) and those related with water vapour and cloud liquid water content, the WTC (wet tropospheric correction). Starting with a summary of satellite altimeter missions since 1991 and corresponding relevant characteristics for DTC and WTC estimation, the tropospheric PD are discussed in the more general context of the atmospheric corrections. Then, for each of the tropospheric PD, the following topics are inspected and discussed: relevant background theory required to estimate each of the PD; methods used in the PD retrievals either from observations or from atmospheric models; specific problems encountered in the retrieval of each PD in coastal and inland water regions; errors still present in some altimeter products and proposed approaches to mitigate them. Most relevant conclusions are highlighted, including the future challenges and trends in DTC and WTC estimation. © 2020 The Authors
英文关键词	Dry tropospheric correction; GNSS; Microwave radiometers; Satellite altimetry; Tropospheric corrections; Wet tropospheric correction
语种	英语
scopus关键词	Aneroid altimeters; Climate change; Coastal zones; Meteorological instruments; Office buildings; Satellites; Sea level; Troposphere; Water resources; Atmospheric corrections; Climate change indicators; Cloud liquid waters; Continental ice sheet; Earth observation techniques; Satellite altimeter; Satellite altimetry; Satellite radar altimetry; Space-based radar; climate change; ice sheet; observational method; radar altimetry; satellite altimetry; satellite mission; sea level change; troposphere; water vapor
来源期刊	Remote Sensing of Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/179064
作者单位	Faculdade de Ciências, Universidade do Porto, Porto, 4169-007, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Matosinhos, Portugal
推荐引用方式 GB/T 7714	Fernandes M.J.,Lázaro C.,Vieira T.. On the role of the troposphere in satellite altimetry[J],2021,252.
APA	Fernandes M.J.,Lázaro C.,&Vieira T..(2021).On the role of the troposphere in satellite altimetry.Remote Sensing of Environment,252.
MLA	Fernandes M.J.,et al."On the role of the troposphere in satellite altimetry".Remote Sensing of Environment 252(2021).