Arid
DOI10.1029/2011WR010972
Interpreting seasonal convective mixing in Devils Hole, Death Valley National Park, from temperature profiles observed by fiber-optic distributed temperature sensing
Hausner, Mark B.1; Wilson, Kevin P.2; Gaines, D. Bailey2; Tyler, Scott W.1
通讯作者Hausner, Mark B.
来源期刊WATER RESOURCES RESEARCH
ISSN0043-1397
EISSN1944-7973
出版年2012
卷号48
英文摘要

Devils Hole, a groundwater-filled fracture in the carbonate aquifer of the southern Nevada Mojave Desert, represents a unique ecohydrological setting, as home to the only extant population of Cyprinodon diabolis, the endangered Devils Hole pupfish. Using water column temperatures collected with a fiber-optic distributed temperature sensor (DTS) during four field campaigns in 2009, evidence of deep circulation and nutrient export are, for the first time, documented. The DTS was deployed to measure vertical temperature profiles in the system, and the raw data returned were postprocessed to refine the calibration beyond the precision of the instrument’s native calibration routines. Calibrated temperature data serve as a tracer for water movement and reveal a seasonal pattern of convective mixing that is supported by numerical simulations of the system. The periodic presence of divers in the water is considered, and their impacts on the temperature profiles are examined and found to be minimal. The seasonal mixing cycle may deplete the pupfish’s food supplies when nutrients are at their scarcest. The spatial and temporal scales of the DTS observations make it possible to observe temperature gradients on the order of 0.001 degrees C m(-1), revealing phenomena that would have been lost in instrument noise and uncertainty.


类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000304012900002
WOS关键词PUPFISH ; NEVADA ; RECORD
WOS类目Environmental Sciences ; Limnology ; Water Resources
WOS研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/175292
作者单位1.Univ Nevada, Dept Geol Sci & Engn, Reno, NV 89557 USA;
2.Death Valley Natl Pk, Pahrump, NV 89048 USA
推荐引用方式
GB/T 7714
Hausner, Mark B.,Wilson, Kevin P.,Gaines, D. Bailey,et al. Interpreting seasonal convective mixing in Devils Hole, Death Valley National Park, from temperature profiles observed by fiber-optic distributed temperature sensing[J],2012,48.
APA Hausner, Mark B.,Wilson, Kevin P.,Gaines, D. Bailey,&Tyler, Scott W..(2012).Interpreting seasonal convective mixing in Devils Hole, Death Valley National Park, from temperature profiles observed by fiber-optic distributed temperature sensing.WATER RESOURCES RESEARCH,48.
MLA Hausner, Mark B.,et al."Interpreting seasonal convective mixing in Devils Hole, Death Valley National Park, from temperature profiles observed by fiber-optic distributed temperature sensing".WATER RESOURCES RESEARCH 48(2012).
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