DOI: 10.1016/j.jag.2017.08.016
Scopus记录号: 2-s2.0-85032181396
论文题名: Land-atmosphere interaction patterns in southeastern South America using satellite products and climate models
作者: Spennemann P ; C ; , Salvia M ; , Ruscica R ; C ; , Sörensson A ; A ; , Grings F ; , Karszenbaum H
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2018
卷: 64 起始页码: 96
结束页码: 103
语种: 英语
英文关键词: Climate modelling
; Land surface temperature
; Land-atmosphere interaction
; Satellite products
; Soil moisture
; Southeastern South America
Scopus关键词: air-soil interaction
; climate modeling
; hot spot
; MODIS
; remote sensing
; satellite data
; soil moisture
; surface flux
; surface temperature
; Argentina
英文摘要: In regions of strong Land-Atmosphere (L-A) interaction, soil moisture (SM) conditions can impact the atmosphere through modulating the land surface fluxes. The importance of the identification of L-A interaction regions lies in the potential improvement of the weather/seasonal forecast and the better understanding of the physical mechanisms involved. This study aims to compare the terrestrial segment of the L-A interaction from satellite products and climate models, motivated by previous modeling studies pointing out southeastern South America (SESA) as a L-A hotspot during austral summer. In addition, the L-A interaction under dry or wet anomalous conditions over SESA is analyzed. To identify L-A hotspots the AMSRE-LPRM SM and MODIS land surface temperature products; coupled climate models and uncoupled land surface models were used. SESA highlights as a strong L-A interaction hotspot when employing different metrics, temporal scales and independent datasets, showing consistency between models and satellite estimations. Both AMSRE-LPRM bands (X and C) are consistent showing a strong L-A interaction hotspot over the Pampas ecoregion. Intensification and a larger spatial extent of the L-A interaction for dry summers was observed in both satellite products and models compared to wet summers. These results, which were derived from measured physical variables, are encouraging and promising for future studies analyzing L-A interactions. L-A interaction analysis is proposed here as a meeting point between remote sensing and climate modelling communities of Argentina, within a region with the highest agricultural and livestock production of the continent, but with an important lack of in-situ SM observations. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79910
Appears in Collections: 气候变化事实与影响
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作者单位: Centro de Investigaciones del Mar y la Atmósfera (CONICET/UBA), UMI-IFAECI (CONICET/CNRS/UBA), Buenos Aires, Argentina; Instituto de Astronomía y Física del Espacio (IAFE–CONICET/UBA), Buenos Aires, Argentina
Recommended Citation:
Spennemann P,C,, Salvia M,et al. Land-atmosphere interaction patterns in southeastern South America using satellite products and climate models[J]. International Journal of Applied Earth Observation and Geoinformation,2018-01-01,64