Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017WR021014 |
Analytical estimation show low depth-independent water loss due to vapor flux from deep aquifers | |
Selker, John S. | |
2017-06-01 | |
发表期刊 | WATER RESOURCES RESEARCH
![]() |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:6 |
文章类型 | Editorial Material |
语种 | 英语 |
国家 | USA |
英文摘要 | Recent articles have provided estimates of evaporative flux from water tables in deserts that span 5 orders of magnitude. In this paper, we present an analytical calculation that indicates aquifer vapor flux to be limited to 0.01 mm/yr for sites where there is negligible recharge and the water table is well over 20 m below the surface. This value arises from the geothermal gradient, and therefore, is nearly independent of the actual depth of the aquifer. The value is in agreement with several numerical studies, but is 500 times lower than recently reported experimental values, and 100 times larger than an earlier analytical estimate. Plain Language Summary The amount of water that is lost from aquifers under desert conditions is important to managing water resources in these areas of scarcity. The current scientific literature presents estimates which differ by a factor of 50,000, leaving a great deal of uncertainty. By looking at the key physical driver we obtained a simple estimate of this water loss, 10 grams of water per square meter per year, which agreed with estimates based computer models, but was 500 times lower than a recently reported experimental measurement, and 100 times higher than an earlier physically-based analysis that contained an important error in assumptions. Because the change in earth's temperature is consistent with depth, and this is the driver of the water loss, this estimate is almost "universal," holding true for any desert water table that is more than 20 m below the surface of the earth. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405997000004 |
WOS关键词 | DESERT VADOSE ZONES |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/21463 |
专题 | 资源环境科学 |
作者单位 | Oregon State Univ, Dept Biol & Ecol Engn, Corvallis, OR 97331 USA |
推荐引用方式 GB/T 7714 | Selker, John S.. Analytical estimation show low depth-independent water loss due to vapor flux from deep aquifers[J]. WATER RESOURCES RESEARCH,2017,53(6). |
APA | Selker, John S..(2017).Analytical estimation show low depth-independent water loss due to vapor flux from deep aquifers.WATER RESOURCES RESEARCH,53(6). |
MLA | Selker, John S.."Analytical estimation show low depth-independent water loss due to vapor flux from deep aquifers".WATER RESOURCES RESEARCH 53.6(2017). |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Selker, John S.]的文章 |
百度学术 |
百度学术中相似的文章 |
[Selker, John S.]的文章 |
必应学术 |
必应学术中相似的文章 |
[Selker, John S.]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论