Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | Springer Nature Link |
|---|---|
| Author | Jie, Zhang Heyden, Jan Bendel, David Barthel, Roland |
| Copyright Year | 2011 |
| Abstract | Despite a long history of related research, quantifying and verifying recharge is still a major challenge. The combination and comparison of conceptually different methods has been recommended as a strategy for evaluating recharge estimates. In this article, recharge estimates from water-table fluctuation (WTF) methods are combined with and compared to the results of the spatially and temporally discretized soil-water-balance model PROMET (processes of radiation, mass and energy transfer). As PROMET and WTF methods rely on different measurable variables, a comparison of these two contrasting techniques allows improved assessment of the plausibility of recharge estimates. An enhanced approach to WTF methods is presented. The approach assumes that in the case of no recharge, there exists a maximum possible potential decline for any given groundwater level. The primary conclusion is that WTF methods are excellent for determining the plausibility of spatially distributed regional-groundwater-recharge estimation approaches and for detecting inconsistencies in available models. Recharge estimates derived from WTF approaches alone are, however, not suitable for regional-scale recharge estimation due to (1) their strong dependency on local data, applicability of which is limited to only very specific conditions, and (2) their sensitivity to influences other than recharge.Malgré une longue histoire de recherches sur le sujet, quantifier et vérifier une recharge est encore un challenge majeur. La combinaison et la comparaison de méthodes conceptuellement différentes a été recommandée comme stratégie pour évaluer les recharges. Dans cet article, des estimations de recharge déduites de la fluctuation de la nappe (WTF) sont combinées et comparées aux bilans d’eau discrétisés dans le temps et dans l’espace du modèle PROMET (Processus de Radiation, de Transfert de Masse et d’Energie). Comme les méthodes PROMET et WTF s’appuient sur différentes variables mesurables, une comparaison entre ces deux techniques contrastées autorise une évaluation améliorée et plausible de la recharge. Une approche améliorée de la méthode WTF est présentée. L’approche suppose qu’en cas d’absence de recharge, il existe un rabattement potentiel maximum possible pour tout niveau de nappe. La conclusion fondamentale est que les méthodes WTF sont excellentes pour déterminer la plausibilité des estimations de recharge de nappe à distribution spatiale régionale et pour détecter des incohérences dans les modèles disponibles. Les estimations de recharge dérivées des approches WFT seules ne sont toutefois pas adaptées à l’échelle régionale en raison de (1) leur forte dépendance aux données locales, dont l’exploitation est limitée seulement à des conditions très particulières, et (2) leur sensibilité à des influences autres que la recharge.A pesar de una larga historia de investigación sobre el tema, la cuantificación y verificación de la recarga es aún un gran desafío. La combinación y comparación de diferentes métodos conceptuales han sido recomendados como una estrategia para evaluar la estimación de la recarga. En este artículo, las estimaciones de la recarga a partir de los métodos de fluctuaciones de los niveles freáticos (WTF) son combinados y comparados con los resultados del modelo de balance de agua – suelo, espacial y temporalmente discretizado PROMET (Procesos de transferencia de radiación, masa y energía). Puesto que los métodos PROMET y WTF descansan sobre diferentes variables medibles, una comparación de estas dos técnicas contrastantes permite una mejora en la evaluación de la plausibilidad de las estimaciones de la recarga. Se presenta una aproximación mejorada de los métodos WTF. La aproximación supone que en el caso que no haya recarga, existe un máximo descenso potencial posible para cualquier dado nivel de agua subterránea. La conclusión primaria es que los métodos WTF son excelentes para determinar la plausibilidad de las aproximaciones a la estimación de recarga regional del agua subterránea espacialmente distribuida y para detectar inconsistencia en los modelos disponibles. Las estimaciones de la recarga provenientes de las aproximaciones WTF, sin embargo no son adecuadas para la estimación de la recarga a escala regional debido a (1) su fuerte dependencia de los datos locales, cuya aplicabilidad está limitada a sólo condiciones muy específicas, y (2) su sensibilidad influencias diferentes de recarga.尽管长期进行相关调查,但补给量的定量确定及验证仍是一个较大挑战。不同概念模型间的结合和比较是评价补给量的可以推荐的一个策略。本文对水位波动模型(WTF)补给估计量与时空离散土壤水平衡模型PROMET(衰变、质量与能量转移的过程)的结果进行结合与比较。由于PROMET 和WTF模型依赖于不同的实测变量,这两个独立技术的比较可改进对补给量合理性的评价。本文提出了WTF模型增强模式。该模式假定在没有补给的情况下,对任一给定的地下水位,存在一个最大可能潜在下降面。初步结论为WTF模型对于确定空间分布区域地下水补给估计量方法的合理性及检查获得模型中的不一致性较好。但是,仅仅用WTF模型对区域尺度上补给量的评估不适用,因为(1) 强烈依赖于当地数据,仅仅在特定条件下才适用;(2) 对除了补给之外其它因素影响的敏感性。Apesar de uma longa história de pesquisas relacionadas, quantificar e verificar a recarga é ainda um grande desafio. A combinação e a comparação de métodos conceptualmente diferentes tem sido recomendada como uma estratégia para avaliar as estimativas de recarga. Neste artigo, métodos de estimativa de recarga a partir da flutuação da superfície freática (WTF) são combinados e comparados com os resultados do modelo de balanço hídrico no solo discretizado no espaço e no tempo PROMET (Processos de Transferência de Massa, Radiação e Energia). Como os métodos PROMET e WTF dependem de diferentes variáveis mensuráveis, uma comparação entre essas duas técnicas distintas permite uma melhor avaliação da plausibilidade das estimativas de recarga. Apresenta-se uma abordagem melhorada aos métodos WTF. A abordagem assume que, no caso de não existir recarga, haverá um possível declínio potencial máximo para qualquer nível da superfície freática. A conclusão principal é que os métodos WTF são excelentes para determinar a plausibilidade de abordagens de estimativa regional espacialmente distribuída da recarga de águas subterrâneas e para a detecção de inconsistências nos modelos disponíveis. As estimativas de recarga resultantes de abordagens WTF, por si só, são no entanto inadequadas para a estimação da recarga à escala regional devido i) à sua forte dependência de dados locais, cuja aplicabilidade está limitada apenas a condições muito específicas, e ii) à sua sensibilidade a influências distintas da recarga. |
| Starting Page | 1487 |
| Ending Page | 1502 |
| Page Count | 16 |
| File Format | |
| ISSN | 14312174 |
| Journal | Hydrogeology Journal |
| Volume Number | 19 |
| Issue Number | 8 |
| e-ISSN | 14350157 |
| Language | Portuguese |
| Publisher | Springer-Verlag |
| Publisher Date | 2011-09-02 |
| Publisher Institution | International Association of Hydrogeologists |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Groundwater recharge/water budget Water-table fluctuation (WTF) method Groundwater level time series Germany Groundwater monitoring Waste Water Technology Water Pollution Control Water Management Aquatic Pollution Geology Hydrogeology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Earth and Planetary Sciences Water Science and Technology |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|