气候变化领域集成服务门户(CCPortal): Quantification of surface water volume changes in the Mackenzie Delta using satellite multi-mission data

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DOI	10.5194/hess-22-1543-2018
	Quantification of surface water volume changes in the Mackenzie Delta using satellite multi-mission data
	Normandin C.; Frappart F.; Lubac B.; Bélanger S.; Marieu V.; Blarel F.; Robinet A.; Guiastrennec-Faugas L.
发表日期	2018
ISSN	1027-5606
起始页码	1543
结束页码	1561
卷号	22 期号:2
英文摘要	Quantification of surface water storage in extensive floodplains and their dynamics are crucial for a better understanding of global hydrological and biogeochemical cycles. In this study, we present estimates of both surface water extent and storage combining multi-mission remotely sensed observations and their temporal evolution over more than 15 years in the Mackenzie Delta. The Mackenzie Delta is located in the northwest of Canada and is the second largest delta in the Arctic Ocean. The delta is frozen from October to May and the recurrent ice break-up provokes an increase in the river's flows. Thus, this phenomenon causes intensive floods along the delta every year, with dramatic environmental impacts. In this study, the dynamics of surface water extent and volume are analysed from 2000 to 2015 by combining multi-satellite information from MODIS multispectral images at 500 m spatial resolution and river stages derived from ERS-2 (1995-2003), ENVISAT (2002-2010) and SARAL (since 2013) altimetry data. The surface water extent (permanent water and flooded area) peaked in June with an area of 9600 km2 (±200 km2) on average, representing approximately 70 % of the delta's total surface. Altimetry-based water levels exhibit annual amplitudes ranging from 4 m in the downstream part to more than 10 m in the upstream part of the Mackenzie Delta. A high overall correlation between the satellite-derived and in situ water heights (R > 0.84) is found for the three altimetry missions. Finally, using altimetry-based water levels and MODIS-derived surface water extents, maps of interpolated water heights over the surface water extents are produced. Results indicate a high variability of the water height magnitude that can reach 10 m compared to the lowest water height in the upstream part of the delta during the flood peak in June. Furthermore, the total surface water volume is estimated and shows an annual variation of approximately 8.5 km3 during the whole study period, with a maximum of 14.4 km3 observed in 2006. The good agreement between the total surface water volume retrievals and in situ river discharges (R Combining double low line 0.66) allows for validation of this innovative multi-mission approach and highlights the high potential to study the surface water extent dynamics. © Author(s) 2018.
语种	英语
scopus关键词	Biogeochemistry; Digital storage; Dynamics; Environmental impact; Flood control; Floods; Geodetic satellites; Radiometers; Satellites; Surface discharges; Surface waters; Water levels; Water resources; Annual amplitude; Annual variations; Biogeochemical cycle; Multispectral images; Remotely-sensed observations; Satellite information; Spatial resolution; Temporal evolution; Rivers; Envisat; ERS; ice breakup; MODIS; quantitative analysis; remote sensing; SARAL; satellite data; satellite mission; spatial resolution; surface water; temporal evolution; volume change; water level; water storage; Arctic Ocean; Canada; Mackenzie Delta; Northwest Territories
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160101
作者单位	Normandin, C., EPOC, UMR 5805, Université de Bordeaux, Allée Geoffroy Saint-Hilaire, Pessac, 33615, France; Frappart, F., GET-GRGS, UMR 5563, CNRS/IRD/UPS, Observatoire Midi-Pyrénées, Toulouse, 31400, France, LEGOS-GRGS, UMR 5566, CNRS/IRD/UPS, Observatoire Midi-Pyrénées, Toulouse, 31400, France; Lubac, B., EPOC, UMR 5805, Université de Bordeaux, Allée Geoffroy Saint-Hilaire, Pessac, 33615, France; Bélanger, S., Dép. Biologie, Chimie et Géographie, Groupe BOREAS and Québec-Océan, Université du Québec À Rimouski, 300 allée des ursulines, Rimouski, QC G5L 3A1, Canada; Marieu, V., EPOC, UMR 5805, Université de Bordeaux, Allée Geoffroy Saint-Hilaire, Pessac, 33615, France; Blarel, F., LEGOS-GRGS, UMR 5566, CNRS/IRD/UPS, Observatoire Midi-Pyrénées, Toulouse, 31400, France; Robinet, A., EPOC, UMR 5805, Université de Bordeaux, Allée Geoffroy Saint-Hilaire, Pessac, 33615, France; Guiastrennec-Faugas, L., EPOC, UMR 5805, Université de Bordeaux, Allée Geoffroy Saint-Hilaire, Pessac, 33615, France
推荐引用方式 GB/T 7714	Normandin C.,Frappart F.,Lubac B.,et al. Quantification of surface water volume changes in the Mackenzie Delta using satellite multi-mission data[J],2018,22(2).
APA	Normandin C..,Frappart F..,Lubac B..,Bélanger S..,Marieu V..,...&Guiastrennec-Faugas L..(2018).Quantification of surface water volume changes in the Mackenzie Delta using satellite multi-mission data.Hydrology and Earth System Sciences,22(2).
MLA	Normandin C.,et al."Quantification of surface water volume changes in the Mackenzie Delta using satellite multi-mission data".Hydrology and Earth System Sciences 22.2(2018).