Arid
DOI10.2136/vzj2018.01.0009
Evaluation of Gridded Meteorological Data for Calculating Water Balance Cover Storage Requirements
Breitmeyer, Ronald J.1; Stewart, Mary Kate2; Huntington, Justin L.3
通讯作者Breitmeyer, Ronald J.
来源期刊VADOSE ZONE JOURNAL
ISSN1539-1663
出版年2018
卷号17期号:1
英文摘要

Water balance cover (WBC) systems are attractive for waste management facilities in arid to semiarid environments because they are a lower cost alternative to conventional geotechnical soil or composite barrier-style covers. The required storage (S-r) for a WBC is dependent on climatic conditions, with the most influence from the seasonal balance of precipitation (P) and potential evapotranspiration (PET). Gridded meteorological datasets provide long-term, continuous, and accessible sources of P and PET for Sr estimation. Six sites in Nevada were analyzed for the agreement among P, PET, and Sr calculated from station and gridded meteorological data (gridMET). Two sites each at elevations of 0 to 1000 m asl, 1000 to 1500 m asl, and 1500 to 2000 m asl were considered during a 21-yr period. The gridMET and station-based P and Sr were generally not significantly different for sites between 0 and 1500 m asl. For sites above 1500 m asl, the differences in P were significant. For the sites analyzed in this study, gridMET typically resulted in equivalent or more conservative estimates of WBC Sr. Percolation rates from hypothetical WBCs were also simulated in the flow model HYDRUS to evaluate WBC performance when using station-based or gridMET-based atmospheric model boundary conditions. Simulations indicate that percolation rates are higher when gridMET atmospheric data are used vs. station-based data for five out of the six sites. This suggests that gridMET-based model boundary conditions provide a degree of conservatism in calculating WBC S-r. This trend was not ubiquitous for all sites (one out of six did not follow), indicating that further study is required before applying these findings generally.


类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000442531200001
WOS关键词UNITED-STATES ; WEATHER DATA ; HYDRAULIC CONDUCTIVITY ; FIELD PERFORMANCE ; SEMIARID REGIONS ; GREAT-BASIN ; LANDFILL ; PRECIPITATION ; MODEL ; TEMPERATURE
WOS类目Environmental Sciences ; Soil Science ; Water Resources
WOS研究方向Environmental Sciences & Ecology ; Agriculture ; Water Resources
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/213540
作者单位1.Univ Nevada, Geol Engn & Hydrogeol Dept, Reno, NV 89557 USA;
2.Copper Environm, Leviathan Mine, Anaconda, MT 59711 USA;
3.Desert Res Inst, Div Hydrol Sci, Reno, NV 89512 USA
推荐引用方式
GB/T 7714
Breitmeyer, Ronald J.,Stewart, Mary Kate,Huntington, Justin L.. Evaluation of Gridded Meteorological Data for Calculating Water Balance Cover Storage Requirements[J],2018,17(1).
APA Breitmeyer, Ronald J.,Stewart, Mary Kate,&Huntington, Justin L..(2018).Evaluation of Gridded Meteorological Data for Calculating Water Balance Cover Storage Requirements.VADOSE ZONE JOURNAL,17(1).
MLA Breitmeyer, Ronald J.,et al."Evaluation of Gridded Meteorological Data for Calculating Water Balance Cover Storage Requirements".VADOSE ZONE JOURNAL 17.1(2018).
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