globalchange  > 气候减缓与适应
DOI: 10.1002/2013GL058304
论文题名:
Estimates of the Southern Ocean general circulation improved by animal-borne instruments
作者: Roquet F.; Wunsch C.; Forget G.; Heimbach P.; Guinet C.; Reverdin G.; Charrassin J.-B.; Bailleul F.; Costa D.P.; Huckstadt L.A.; Goetz K.T.; Kovacs K.M.; Lydersen C.; Biuw M.; Nøst O.A.; Bornemann H.; Ploetz J.; Bester M.N.; McIntyre T.; Muelbert M.C.; Hindell M.A.; McMahon C.R.; Williams G.; Harcourt R.; Field I.C.; Chafik L.; Nicholls K.W.; Boehme L.; Fedak M.A.
刊名: Geophysical Research Letters
ISSN: 0094-8297
EISSN: 1944-8028
出版年: 2013
卷: 40, 期:23
起始页码: 6176
结束页码: 6180
语种: 英语
英文关键词: animal-borne sampling ; hydrography ; Southern Ocean ; state estimation
Scopus关键词: Animal-borne instruments ; Antarctic Circumpolar Currents ; Conductivity temperature depths ; Estimation techniques ; hydrography ; Satellite observations ; Sea ice concentration ; Southern ocean ; Ocean currents ; Sea ice ; State estimation ; Animals ; accuracy assessment ; biophysics ; calibration ; circumpolar current ; data set ; hydrography ; ice cover ; oceanic general circulation model ; pinniped ; satellite imagery ; sea ice ; sensor ; Southern Ocean ; Animalia
英文摘要: Over the last decade, several hundred seals have been equipped with conductivity-temperature-depth sensors in the Southern Ocean for both biological and physical oceanographic studies. A calibrated collection of seal-derived hydrographic data is now available, consisting of more than 165,000 profiles. The value of these hydrographic data within the existing Southern Ocean observing system is demonstrated herein by conducting two state estimation experiments, differing only in the use or not of seal data to constrain the system. Including seal-derived data substantially modifies the estimated surface mixed-layer properties and circulation patterns within and south of the Antarctic Circumpolar Current. Agreement with independent satellite observations of sea ice concentration is improved, especially along the East Antarctic shelf. Instrumented animals efficiently reduce a critical observational gap, and their contribution to monitoring polar climate variability will continue to grow as data accuracy and spatial coverage increase. Key Points A quality-controlled collection of seal-derived hydrographic data is presented The global value of seal data is assessed using a state estimation technique Seal data improve ocean circulation estimates in sea ice-covered regions ©2013 The Authors. Geophysical Research Letters published by Wiley on behalf of the American Geophysical Union.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84888793101&doi=10.1002%2f2013GL058304&partnerID=40&md5=0c5501c7418045dba434c82bf3a9b34d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5561
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作者单位: Department of Meteorology, Stockholm University, SE-106 91 Stockholm, Sweden

Recommended Citation:
Roquet F.,Wunsch C.,Forget G.,et al. Estimates of the Southern Ocean general circulation improved by animal-borne instruments[J]. Geophysical Research Letters,2013-01-01,40(23).
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