Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jhydrol.2004.12.007 |
The water regime of the Monegros playa-lakes as established from ground and satellite data | |
Castaneda, C; Herrero, J | |
通讯作者 | Castaneda, C |
来源期刊 | JOURNAL OF HYDROLOGY |
ISSN | 0022-1694 |
EISSN | 1879-2707 |
出版年 | 2005 |
卷号 | 310期号:1-4页码:95-110 |
英文摘要 | The Monegros playa-lakes are isolated saline wetlands, locally named ’saladas" situated in a vulnerable semi-arid territory where agricultural expansion threatens the natural hydrologic cycle with regular artificial flooding, risking the survival of a valuable natural resource. This study aims to examine the water regime of these playa-lakes from climate data and available hydrologic records. These records are historical and limited to a series of weekly measurements of depth and of water extent extracted from Landsat imagery. We have characterized the hydrological behavior of the playa-lakes by treating ground and satellite data separately. For this purpose, the playa-lakes are first grouped according to the water occurrence episodes. Then their hydrologic status is related to the previous rainfall and also to ETO, since there is a lack of local records of wind as well as brine or fresh water evaporation. The northern playa-lakes respond to rain faster than the southern ones. All playa-lakes have a significant relationship between water occurrence and rainfall accumulated within 180 days prior to an observation. A significant relationship between ETO and water occurrence was found for a shorter 15-day accumulation period. Quantifying the current water regime now is critical for monitoring the effects of expanding irrigation in adjacent lands. Remote sensing is well-suited to an environmental assessment for regions of difficult access with the added benefit of lowered field measurement cost. The hydrological data from the Monegros playa-lakes could be integrated with other playa environments worldwide to compare regionally specific climate conditions. (C) 2005 Elsevier B.V. All rights reserved. |
英文关键词 | playa-lake remote sensing irrigation flooding regime monegros Spain |
类型 | Article |
语种 | 英语 |
国家 | Spain |
收录类别 | SCI-E |
WOS记录号 | WOS:000230436200006 |
WOS关键词 | CENTRAL EBRO BASIN ; SOUTH-AUSTRALIA ; TIME-SERIES ; LANDSAT TM ; VARIABILITY ; EVAPORATION ; INUNDATION ; SPAIN ; AVHRR ; ZONE |
WOS类目 | Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources |
WOS研究方向 | Engineering ; Geology ; Water Resources |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/149708 |
作者单位 | (1)Govt Aragon, CITA, Soils & Irrigat Dept, Zaragoza 50080, Spain |
推荐引用方式 GB/T 7714 | Castaneda, C,Herrero, J. The water regime of the Monegros playa-lakes as established from ground and satellite data[J],2005,310(1-4):95-110. |
APA | Castaneda, C,&Herrero, J.(2005).The water regime of the Monegros playa-lakes as established from ground and satellite data.JOURNAL OF HYDROLOGY,310(1-4),95-110. |
MLA | Castaneda, C,et al."The water regime of the Monegros playa-lakes as established from ground and satellite data".JOURNAL OF HYDROLOGY 310.1-4(2005):95-110. |
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