An Introduction to the HydroGNSS GNSS Reflectometry Remote Sensing Mission

被引：96

作者：

Unwin, Martin J. ^{[1
]}

Pierdicca, Nazzareno ^{[2
]}

Cardellach, Estel ^{[3
,4
]}

Rautiainen, Kimmo ^{[5
,6
]}

Foti, Giuseppe ^{[7
]}

Blunt, Paul ^{[8
]}

Guerriero, Leila ^{[9
]}

Santi, Emanuele ^{[10
]}

Tossaint, Michel ^{[11
]}

机构：

[1] Surrey Satellite Technol Ltd, Guildford GU2 7YE, Surrey, England

[2] Sapienza Univ Rome, Dept Informat Engn Elect & Telecommun, I-00185 Rome, Italy

[3] Inst Space Studies Catalonia IEEC, Barcelona 08034, Spain

[4] Inst Space Sci ICE CSIC, Barcelona 08193, Spain

[5] Finnish Meteorol Inst, Arctic Res Unit, Helsinki 00560, Finland

[6] Finnish Meteorol Inst, Earth Observat Res Unit, Helsinki 00560, Finland

[7] Natl Oceanog Ctr, Satellite Oceanog Sect, Southampton SO14 3ZH, Hants, England

[8] Univ Nottingham, GNSS & Commun Engn, Nottingham NG7 2RD, England

[9] Tor Vergata Univ Rome, I-00133 Rome, Italy

[10] CNR, IFAC, I-50019 Florence, Italy

[11] European Space Agcy, European Space Res & Technol Ctr, NL-2201 AZ Noordwijk, Netherlands

来源：

IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING | 2021年 / 14卷

关键词：

Global navigation satellite system; Soil moisture; Soil measurements; Biomass; Sea measurements; Earth; Reflection; Global navigation satellite system (GNSS); global navigation satellite system reflectometry (GNSS-R); hydrology; remote sensing; SOIL-MOISTURE; REFLECTIONS; RADAR; STATE;

D O I：

10.1109/JSTARS.2021.3089550

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

HydroGNSS (Hydrology using Global Navigation Satellite System reflections) has been selected as the second European Space Agency (ESA) Scout earth observation mission to demonstrate the capability of small satellites to deliver science. This article summarizes the case for HydroGNSS as developed during its system consolidation study. HydroGNSS is a high-value dual small satellite mission, which will prove new concepts and offer timely climate observations that supplement and complement the existing observations and are high in ESAs earth observation scientific priorities. The mission delivers the observations of four hydrological essential climate variables as defined by the global climate observing system using the new technique of GNSS reflectometry. These will cover the world's land mass to 25 km resolution, with a 15-day revisit. The variables are soil moisture, inundation or wetlands, freeze/thaw state, and above-ground biomass.

引用

页码：6987 / 6999

页数：13

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