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  • Response of groundwater level and Surface-water/groundwater Interaction to climate variability: Clarence-Moreton Basin, Australia
    Hydrogeology Journal, 2018
    Co-Authors: Tao Cui, Dan Pagendam, Mat Gilfedder, Matthias Raiber, David Rassam
    Abstract:

    Understanding the response of groundwater levels in alluvial and sedimentary basin aquifers to climatic variability and human water-resource developments is a key step in many hydrogeological investigations. This study presents an analysis of groundwater response to climate variability from 2000 to 2012 in the Queensland part of the sedimentary Clarence-Moreton Basin, Australia. It contributes to the baseline hydrogeological understanding by identifying the primary groundwater flow pattern, water-level response to climate extremes, and the resulting dynamics of Surface-water/groundwater Interaction. Groundwater-level measurements from thousands of bores over several decades were analysed using Kriging and nonparametric trend analysis, together with a newly developed three-dimensional geological model. Groundwater-level contours suggest that groundwater flow in the shallow aquifers shows local variations in the close vicinity of streams, notwithstanding general conformance with topographic relief. The trend analysis reveals that climate variability can be quickly reflected in the shallow aquifers of the Clarence-Moreton Basin although the alluvial aquifers have a quicker rainfall response than the sedimentary bedrock formations. The Lockyer Valley alluvium represents the most sensitively responding alluvium in the area, with the highest declining (−0.7 m/year) and ascending (2.1 m/year) Sen’s slope rates during and after the drought period, respectively. Different Surface-water/groundwater Interaction characteristics were observed in different catchments by studying groundwater-level fluctuations along hydrogeologic cross-sections. The findings of this study lay a foundation for future water-resource management in the study area.RésuméLa compréhension de l’évolution des niveaux piézométriques des aquifères alluviaux et des bassins sédimentaires, en réponse à la variabilité climatique et aux développements des ressources en eau pour les activités anthropiques, est. une étape clé des nombreuses investigations hydrogéologiques. Cette étude présente une analyse de l’évolution des eaux souterraines en réponse à la variabilité climatique entre 2000 et 2012, dans la partie du bassin sédimentaire de Clarence-Moreton située dans le Queensland, en Australie. Elle contribue à la connaissance de base du contexte hydrogéologique, en identifiant le modèle d’écoulement principal des eaux souterraines, la réponse des niveaux piézométriques lors des extrêmes climatiques, et les dynamiques qui en résultent dans les échanges nappe-rivière. Les mesures de niveaux piézométriques de milliers de forages, sur plusieurs décennies, ont été analysées en utilisant un krigeage et un test de tendance non paramétrique, conjointement avec un nouveau modèle géologique tridimensionnel. Les isopièzes suggèrent que les écoulements d’eau souterraine dans les aquifères peu profonds montrent des variations locales à proximité des cours d’eau, bien qu’étant globalement influencées par la topographie. L’analyse de tendance révèle que la variabilité climatique peut se répercuter rapidement sur les aquifères peu profonds du bassin de Clarence-Moreton, même si les aquifères alluviaux ont une réponse plus rapide aux précipitations que les formations du substratum sédimentaire. La vallée alluviale de Lockyer représente la partie alluviale la plus sensible de la zone, avec les plus forts taux d’évolution à la baisse (−0.7 m/an) et à la hausse (2.1 m/an), respectivement pendant et après la période de sécheresse. Des relations nappe-rivière aux caractéristiques différentes ont été observées, dans différents bassins versants, en étudiant les fluctuations piézométriques le long de coupes transversales hydrogéologiques. Les conclusions de cette étude posent les bases pour la gestion future des ressources en eau de la zone d’étude.ResumenLa comprensión de la respuesta de los niveles del agua subterránea en los acuíferos de las cuencas aluviales y sedimentarias a la variabilidad climática y a los desarrollos humanos de los recursos hídricos es un paso clave en muchas investigaciones hidrogeológicas. Este estudio presenta un análisis de la respuesta de las aguas subterráneas a la variabilidad del clima de 2000 a 2012 en la parte de Queensland de la cuenca sedimentaria de Clarence-Moreton, Australia. Contribuye a la comprensión hidrogeológica básica identificando el patrón de flujo primario de agua subterránea, la respuesta del nivel de agua a los extremos climáticos y la dinámica resultante de la interacción agua superficial/agua subterránea. Las mediciones de nivel de agua subterránea a partir de miles de pozos durante varias décadas se analizaron usando Kriging y el análisis de tendencias no paramétricas, junto con un modelo geológico tridimensional recientemente desarrollado. Los contornos del nivel del agua subterránea sugieren que el flujo de agua subterránea en los acuíferos poco profundos muestra variaciones locales en la cercanía de los arroyos, a pesar de la conformidad general con el relieve topográfico. El análisis de tendencias revela que la variabilidad climática puede reflejarse rápidamente en los acuíferos poco profundos de la cuenca Clarence-Moreton, aunque los acuíferos aluviales tienen una respuesta de precipitación más rápida que las sedimentarias. El aluvión del Valle de Lockyer representa el aluvión más sensiblemente reactivo en la zona, con las tasas de pendiente de Sen más altas (−0.7 m / año) y ascendente (2.1 m / año) durante y después del período de sequía, respectivamente. Se observaron diferentes características de interacción agua superficial/agua subterránea en diferentes captaciones mediante el estudio de las fluctuaciones del nivel del agua subterránea a lo largo de las secciones hidrogeológicas transversales. Los hallazgos de este estudio establecen una base para la futura gestión de los recursos hídricos en el área de estudio.摘要气候变化及人类对水资源的管理使用对地下水的影响是水文地质研究的一项重要内容。该研究分析和总结了澳大利亚Clarence-Moreton盆地地下水在2000到2012年间对气候变化的响应。通过对区域地下水流模式,地下水水位变化以及地表水-地下水交互数据的分析,该研究对该地区的基础水文地质提供了新的认识。研究方法主要包括对该区域跨度几十年的地下水位数据的克里金插值和趋势分析,以及基于三维地质模型的地表水-地下水交互分析。研究发现虽然浅层地下水的流动基本上受制于区域地形起伏的影响,但是河流沿岸的地下水流动更多的反映了局部地下水水位的变化。虽然冲积含水层比孔隙基岩含水层对气候变化的响应更快,总体来说该区域的浅层地下水对气候变化的响应比较快速。冲积含水层地下水位可见季节性的波动信号,孔隙基岩含水层虽不见季节性扰动信号,但是干旱期过后,地下水水位会逐年回升。根据Sen斜率分析,Lockyer Valley的冲积含水层是研究区内对气候变化最敏感的水文地质单元。在干旱期,该单元的地下水位下降速度约为0.7米/年。旱期过后,其地下水位回升的速度约为2.1米/年。借助三维地质模型,在不同的区域,可见不同的地表水-地下水交互行为。该研究取得的数据以及结果将为该区域未来的水资源管理提供新的科学支持。ResumoEntender a resposta dos níveis das águas subterrâneas em bacias aquíferas aluviais e sedimentares à variabilidade climática e aos desenvolvimentos humanos para o uso da água é um passo chave em diversas investigações hidrológicas. Esse estudo apresenta uma análise da resposta das águas subterrâneas à variabilidade climática de 2000 a 2012 na porção de Queensland da Bacia sedimentar Clarence-Moreton, Austrália. Isso contribui para o conhecimento hidrogeológico básico por identificar o padrão de fluxo primário das águas subterrâneas, respostas dos níveis à extremos climáticos, e a dinâmica resultante da interação águas superficiais/águas subterrâneas. Medidas de níveis das águas subterrâneas de milhares de poços por várias décadas foram analisadas usando Krigagem e análise de tendências não paramétricas, juntas com um desenvolvimento recente de um modelo geológico tridimensional. Os contornos dos níveis das águas subterrâneas sugerem que o fluxo das águas subterrâneas no aquífero raso apresenta variações locais nas proximidades dos cursos d’água, apesar da conformação genérica com o relevo topográfico. A análise de tendências revela que a variabilidade climática pode ser rapidamente refletida nos aquíferos rasos da Bacia Clarence-Moreton embora os aquíferos aluviais tenham uma resposta mais rápida à precipitação do que as formações de rocha matriz sedimentar. O Vale aluvial Lockyer representa o aluvião com respostas mais sensíveis presente na área, com os maiores declínios (−0.7 m/ano) e ascensões (2.1 m/ano) nas taxas de inclinação de Sen durante e depois os período de seca, respectivamente. Diferentes características da interação águas superficiais/águas subterrâneas foram observadas em diferentes bacias pelo estudo da flutuação do nível das águas subterrâneas ao longo de seções hidrogeológicas transversais. As descobertas desse estudo estabelecem uma base para a gestão futura dos recursos hídricos na área de estudo.

  • Response of groundwater level and Surface-water/groundwater Interaction to climate variability: Clarence-Moreton Basin, Australia
    Hydrogeology Journal, 2017
    Co-Authors: Tao Cui, Dan Pagendam, Mat Gilfedder, Matthias Raiber, David Rassam
    Abstract:

    Understanding the response of groundwater levels in alluvial and sedimentary basin aquifers to climatic variability and human water-resource developments is a key step in many hydrogeological investigations. This study presents an analysis of groundwater response to climate variability from 2000 to 2012 in the Queensland part of the sedimentary Clarence-Moreton Basin, Australia. It contributes to the baseline hydrogeological understanding by identifying the primary groundwater flow pattern, water-level response to climate extremes, and the resulting dynamics of Surface-water/groundwater Interaction. Groundwater-level measurements from thousands of bores over several decades were analysed using Kriging and nonparametric trend analysis, together with a newly developed three-dimensional geological model. Groundwater-level contours suggest that groundwater flow in the shallow aquifers shows local variations in the close vicinity of streams, notwithstanding general conformance with topographic relief. The trend analysis reveals that climate variability can be quickly reflected in the shallow aquifers of the Clarence-Moreton Basin although the alluvial aquifers have a quicker rainfall response than the sedimentary bedrock formations. The Lockyer Valley alluvium represents the most sensitively responding alluvium in the area, with the highest declining (−0.7 m/year) and ascending (2.1 m/year) Sen’s slope rates during and after the drought period, respectively. Different Surface-water/groundwater Interaction characteristics were observed in different catchments by studying groundwater-level fluctuations along hydrogeologic cross-sections. The findings of this study lay a foundation for future water-resource management in the study area.

Tao Cui - One of the best experts on this subject based on the ideXlab platform.

  • Response of groundwater level and Surface-water/groundwater Interaction to climate variability: Clarence-Moreton Basin, Australia
    Hydrogeology Journal, 2018
    Co-Authors: Tao Cui, Dan Pagendam, Mat Gilfedder, Matthias Raiber, David Rassam
    Abstract:

    Understanding the response of groundwater levels in alluvial and sedimentary basin aquifers to climatic variability and human water-resource developments is a key step in many hydrogeological investigations. This study presents an analysis of groundwater response to climate variability from 2000 to 2012 in the Queensland part of the sedimentary Clarence-Moreton Basin, Australia. It contributes to the baseline hydrogeological understanding by identifying the primary groundwater flow pattern, water-level response to climate extremes, and the resulting dynamics of Surface-water/groundwater Interaction. Groundwater-level measurements from thousands of bores over several decades were analysed using Kriging and nonparametric trend analysis, together with a newly developed three-dimensional geological model. Groundwater-level contours suggest that groundwater flow in the shallow aquifers shows local variations in the close vicinity of streams, notwithstanding general conformance with topographic relief. The trend analysis reveals that climate variability can be quickly reflected in the shallow aquifers of the Clarence-Moreton Basin although the alluvial aquifers have a quicker rainfall response than the sedimentary bedrock formations. The Lockyer Valley alluvium represents the most sensitively responding alluvium in the area, with the highest declining (−0.7 m/year) and ascending (2.1 m/year) Sen’s slope rates during and after the drought period, respectively. Different Surface-water/groundwater Interaction characteristics were observed in different catchments by studying groundwater-level fluctuations along hydrogeologic cross-sections. The findings of this study lay a foundation for future water-resource management in the study area.RésuméLa compréhension de l’évolution des niveaux piézométriques des aquifères alluviaux et des bassins sédimentaires, en réponse à la variabilité climatique et aux développements des ressources en eau pour les activités anthropiques, est. une étape clé des nombreuses investigations hydrogéologiques. Cette étude présente une analyse de l’évolution des eaux souterraines en réponse à la variabilité climatique entre 2000 et 2012, dans la partie du bassin sédimentaire de Clarence-Moreton située dans le Queensland, en Australie. Elle contribue à la connaissance de base du contexte hydrogéologique, en identifiant le modèle d’écoulement principal des eaux souterraines, la réponse des niveaux piézométriques lors des extrêmes climatiques, et les dynamiques qui en résultent dans les échanges nappe-rivière. Les mesures de niveaux piézométriques de milliers de forages, sur plusieurs décennies, ont été analysées en utilisant un krigeage et un test de tendance non paramétrique, conjointement avec un nouveau modèle géologique tridimensionnel. Les isopièzes suggèrent que les écoulements d’eau souterraine dans les aquifères peu profonds montrent des variations locales à proximité des cours d’eau, bien qu’étant globalement influencées par la topographie. L’analyse de tendance révèle que la variabilité climatique peut se répercuter rapidement sur les aquifères peu profonds du bassin de Clarence-Moreton, même si les aquifères alluviaux ont une réponse plus rapide aux précipitations que les formations du substratum sédimentaire. La vallée alluviale de Lockyer représente la partie alluviale la plus sensible de la zone, avec les plus forts taux d’évolution à la baisse (−0.7 m/an) et à la hausse (2.1 m/an), respectivement pendant et après la période de sécheresse. Des relations nappe-rivière aux caractéristiques différentes ont été observées, dans différents bassins versants, en étudiant les fluctuations piézométriques le long de coupes transversales hydrogéologiques. Les conclusions de cette étude posent les bases pour la gestion future des ressources en eau de la zone d’étude.ResumenLa comprensión de la respuesta de los niveles del agua subterránea en los acuíferos de las cuencas aluviales y sedimentarias a la variabilidad climática y a los desarrollos humanos de los recursos hídricos es un paso clave en muchas investigaciones hidrogeológicas. Este estudio presenta un análisis de la respuesta de las aguas subterráneas a la variabilidad del clima de 2000 a 2012 en la parte de Queensland de la cuenca sedimentaria de Clarence-Moreton, Australia. Contribuye a la comprensión hidrogeológica básica identificando el patrón de flujo primario de agua subterránea, la respuesta del nivel de agua a los extremos climáticos y la dinámica resultante de la interacción agua superficial/agua subterránea. Las mediciones de nivel de agua subterránea a partir de miles de pozos durante varias décadas se analizaron usando Kriging y el análisis de tendencias no paramétricas, junto con un modelo geológico tridimensional recientemente desarrollado. Los contornos del nivel del agua subterránea sugieren que el flujo de agua subterránea en los acuíferos poco profundos muestra variaciones locales en la cercanía de los arroyos, a pesar de la conformidad general con el relieve topográfico. El análisis de tendencias revela que la variabilidad climática puede reflejarse rápidamente en los acuíferos poco profundos de la cuenca Clarence-Moreton, aunque los acuíferos aluviales tienen una respuesta de precipitación más rápida que las sedimentarias. El aluvión del Valle de Lockyer representa el aluvión más sensiblemente reactivo en la zona, con las tasas de pendiente de Sen más altas (−0.7 m / año) y ascendente (2.1 m / año) durante y después del período de sequía, respectivamente. Se observaron diferentes características de interacción agua superficial/agua subterránea en diferentes captaciones mediante el estudio de las fluctuaciones del nivel del agua subterránea a lo largo de las secciones hidrogeológicas transversales. Los hallazgos de este estudio establecen una base para la futura gestión de los recursos hídricos en el área de estudio.摘要气候变化及人类对水资源的管理使用对地下水的影响是水文地质研究的一项重要内容。该研究分析和总结了澳大利亚Clarence-Moreton盆地地下水在2000到2012年间对气候变化的响应。通过对区域地下水流模式,地下水水位变化以及地表水-地下水交互数据的分析,该研究对该地区的基础水文地质提供了新的认识。研究方法主要包括对该区域跨度几十年的地下水位数据的克里金插值和趋势分析,以及基于三维地质模型的地表水-地下水交互分析。研究发现虽然浅层地下水的流动基本上受制于区域地形起伏的影响,但是河流沿岸的地下水流动更多的反映了局部地下水水位的变化。虽然冲积含水层比孔隙基岩含水层对气候变化的响应更快,总体来说该区域的浅层地下水对气候变化的响应比较快速。冲积含水层地下水位可见季节性的波动信号,孔隙基岩含水层虽不见季节性扰动信号,但是干旱期过后,地下水水位会逐年回升。根据Sen斜率分析,Lockyer Valley的冲积含水层是研究区内对气候变化最敏感的水文地质单元。在干旱期,该单元的地下水位下降速度约为0.7米/年。旱期过后,其地下水位回升的速度约为2.1米/年。借助三维地质模型,在不同的区域,可见不同的地表水-地下水交互行为。该研究取得的数据以及结果将为该区域未来的水资源管理提供新的科学支持。ResumoEntender a resposta dos níveis das águas subterrâneas em bacias aquíferas aluviais e sedimentares à variabilidade climática e aos desenvolvimentos humanos para o uso da água é um passo chave em diversas investigações hidrológicas. Esse estudo apresenta uma análise da resposta das águas subterrâneas à variabilidade climática de 2000 a 2012 na porção de Queensland da Bacia sedimentar Clarence-Moreton, Austrália. Isso contribui para o conhecimento hidrogeológico básico por identificar o padrão de fluxo primário das águas subterrâneas, respostas dos níveis à extremos climáticos, e a dinâmica resultante da interação águas superficiais/águas subterrâneas. Medidas de níveis das águas subterrâneas de milhares de poços por várias décadas foram analisadas usando Krigagem e análise de tendências não paramétricas, juntas com um desenvolvimento recente de um modelo geológico tridimensional. Os contornos dos níveis das águas subterrâneas sugerem que o fluxo das águas subterrâneas no aquífero raso apresenta variações locais nas proximidades dos cursos d’água, apesar da conformação genérica com o relevo topográfico. A análise de tendências revela que a variabilidade climática pode ser rapidamente refletida nos aquíferos rasos da Bacia Clarence-Moreton embora os aquíferos aluviais tenham uma resposta mais rápida à precipitação do que as formações de rocha matriz sedimentar. O Vale aluvial Lockyer representa o aluvião com respostas mais sensíveis presente na área, com os maiores declínios (−0.7 m/ano) e ascensões (2.1 m/ano) nas taxas de inclinação de Sen durante e depois os período de seca, respectivamente. Diferentes características da interação águas superficiais/águas subterrâneas foram observadas em diferentes bacias pelo estudo da flutuação do nível das águas subterrâneas ao longo de seções hidrogeológicas transversais. As descobertas desse estudo estabelecem uma base para a gestão futura dos recursos hídricos na área de estudo.

  • Response of groundwater level and Surface-water/groundwater Interaction to climate variability: Clarence-Moreton Basin, Australia
    Hydrogeology Journal, 2017
    Co-Authors: Tao Cui, Dan Pagendam, Mat Gilfedder, Matthias Raiber, David Rassam
    Abstract:

    Understanding the response of groundwater levels in alluvial and sedimentary basin aquifers to climatic variability and human water-resource developments is a key step in many hydrogeological investigations. This study presents an analysis of groundwater response to climate variability from 2000 to 2012 in the Queensland part of the sedimentary Clarence-Moreton Basin, Australia. It contributes to the baseline hydrogeological understanding by identifying the primary groundwater flow pattern, water-level response to climate extremes, and the resulting dynamics of Surface-water/groundwater Interaction. Groundwater-level measurements from thousands of bores over several decades were analysed using Kriging and nonparametric trend analysis, together with a newly developed three-dimensional geological model. Groundwater-level contours suggest that groundwater flow in the shallow aquifers shows local variations in the close vicinity of streams, notwithstanding general conformance with topographic relief. The trend analysis reveals that climate variability can be quickly reflected in the shallow aquifers of the Clarence-Moreton Basin although the alluvial aquifers have a quicker rainfall response than the sedimentary bedrock formations. The Lockyer Valley alluvium represents the most sensitively responding alluvium in the area, with the highest declining (−0.7 m/year) and ascending (2.1 m/year) Sen’s slope rates during and after the drought period, respectively. Different Surface-water/groundwater Interaction characteristics were observed in different catchments by studying groundwater-level fluctuations along hydrogeologic cross-sections. The findings of this study lay a foundation for future water-resource management in the study area.

Rodney R. Caldwell - One of the best experts on this subject based on the ideXlab platform.

  • Evaluating the impact of irrigation on Surface water – groundwater Interaction and stream temperature in an agricultural watershed
    Science of The Total Environment, 2017
    Co-Authors: Hedeff I. Essaid, Rodney R. Caldwell
    Abstract:

    Changes in groundwater discharge to streams caused by irrigation practices can influence stream temperature. Observations along two currently flood-irrigated reaches in the 640-square-kilometer upper Smith River watershed, an important agricultural and recreational fishing area in west-central Montana, showed a downstream temperature decrease resulting from groundwater discharge to the stream. A watershed-scale coupled Surface water and groundwater flow model was used to examine changes in streamflow, groundwater discharge to the stream and stream temperature resulting from irrigation practices. The upper Smith River watershed was used to develop the model framework including watershed climate, topography, hydrography, vegetation, soil properties and current irrigation practices. Model results were used to compare watershed streamflow, groundwater recharge, and groundwater discharge to the stream for three scenarios: natural, pre-irrigation conditions (PreIrr); current irrigation practices involving mainly stream diversion for flood and sprinkler irrigation (IrrCurrent); and a hypothetical scenario with only groundwater supplying sprinkler irrigation (IrrGW). Irrigation increased groundwater recharge relative to natural PreIrr conditions because not all applied water was removed by crop evapotranspiration. Groundwater storage and groundwater discharge to the stream increased relative to natural PreIrr conditions when the source of irrigation water was mainly stream diversion as in the IrrCurrent scenario. The hypothetical IrrGW scenario, in which groundwater withdrawals were the sole source of irrigation water, resulted in widespread lowering of the water table and associated decreases in groundwater storage and groundwater discharge to the stream. A mixing analysis using model predicted groundwater discharge along the reaches suggests that stream diversion and flood irrigation, represented in the IrrCurrent scenario, has led to cooling of stream temperatures relative to natural PreIrr conditions improving fish thermal habitat. However, the decrease in groundwater discharge in the IrrGW scenario resulting from large-scale groundwater withdrawal for irrigation led to warmer than natural stream temperatures and possible degradation of fish habitat.

  • Evaluating the impact of irrigation on Surface water - groundwater Interaction and stream temperature in an agricultural watershed.
    The Science of the total environment, 2017
    Co-Authors: Hedeff I. Essaid, Rodney R. Caldwell
    Abstract:

    Changes in groundwater discharge to streams caused by irrigation practices can influence stream temperature. Observations along two currently flood-irrigated reaches in the 640-square-kilometer upper Smith River watershed, an important agricultural and recreational fishing area in west-central Montana, showed a downstream temperature decrease resulting from groundwater discharge to the stream. A watershed-scale coupled Surface water and groundwater flow model was used to examine changes in streamflow, groundwater discharge to the stream and stream temperature resulting from irrigation practices. The upper Smith River watershed was used to develop the model framework including watershed climate, topography, hydrography, vegetation, soil properties and current irrigation practices. Model results were used to compare watershed streamflow, groundwater recharge, and groundwater discharge to the stream for three scenarios: natural, pre-irrigation conditions (PreIrr); current irrigation practices involving mainly stream diversion for flood and sprinkler irrigation (IrrCurrent); and a hypothetical scenario with only groundwater supplying sprinkler irrigation (IrrGW). Irrigation increased groundwater recharge relative to natural PreIrr conditions because not all applied water was removed by crop evapotranspiration. Groundwater storage and groundwater discharge to the stream increased relative to natural PreIrr conditions when the source of irrigation water was mainly stream diversion as in the IrrCurrent scenario. The hypothetical IrrGW scenario, in which groundwater withdrawals were the sole source of irrigation water, resulted in widespread lowering of the water table and associated decreases in groundwater storage and groundwater discharge to the stream. A mixing analysis using model predicted groundwater discharge along the reaches suggests that stream diversion and flood irrigation, represented in the IrrCurrent scenario, has led to cooling of stream temperatures relative to natural PreIrr conditions improving fish thermal habitat. However, the decrease in groundwater discharge in the IrrGW scenario resulting from large-scale groundwater withdrawal for irrigation led to warmer than natural stream temperatures and possible degradation of fish habitat.

  • GSFLOW model simulations used to evaluate the impact of irrigated agriculture on Surface water groundwater Interaction
    2017
    Co-Authors: Hedeff I. Essaid, Rodney R. Caldwell, Jim Constantz
    Abstract:

    Watershed-scale coupled Surface water (SW) groundwater (GW) flow modeling was used to examine changes in streamflow and SW GW Interaction resulting from irrigation and associated SW diversions and GW pumping. The U.S. Geological Survey (USGS) model GSFLOW, an integration of the USGS Precipitation-Runoff Modeling System (PRMS) and the Modular Ground-Water Flow Model (MODFLOW), was utilized for this effort. Processes represented in the model include daily rain, snowfall, snowmelt, streamflow, Surface runoff, interflow, infiltration, soil-zone evapotranspiration (ET), and subSurface unsaturated and saturated GW flow and ET. The upper Smith River watershed, an important agricultural and recreational fishing area in west-central Montana, was used to develop the model framework including watershed climate, topography, hydrography, vegetation, and soil properties as well as the scenario used to represent current irrigation practices. The 640 square kilometer modeled watershed area ranged in elevation from 1476 m to 2570 m and was discretized into coincident 200 m by 200 m hydrologic response units (for climate and soil zone flow processes) and grid blocks (for unsaturated zone and GW flow processes) resulting in a grid of 180 rows by 160 columns. The subSurface GW system was discretized into 6 layers (two 50-m thick layers overlying five 100-m thick layers) representing Quaternary alluvium, Tertiary sedimentary rock and bedrock with maximum thicknesses of 50 m, 200 m and 500 m, respectively. The time period from 10/1/2004 to 10/1/2010 was simulated using 2192 daily stress periods. Observed daily temperature maximum, minimum and precipitation records at the White Sulphur Springs 2 weather station were used with temperature and precipitation lapse rates to distribute elevation-dependent temperature and precipitation across the watershed. Initial estimates of parameters controlling soil zone storage, infiltration from the soil zone to GW, and interflow were related to watershed properties such as land-Surface slope and soil properties. Potential ET was calculated in GSFLOW using the Jensen-Haise approach. The model ET extinction depth was based on the watershed vegetation distribution, assuming alfalfa was planted in sprinkler irrigated areas, and literature plant root depths. SubSurface saturated and unsaturated zone properties were related to the hydrogeologic units (i.e. alluvium, Tertiary sedimentary rock and bedrock). The stream channel network was constructed by using the Arc Hydro flow accumulation tool and selecting the network of stream segments with flow accumulating from at least 20 km2 (500 grid blocks). Each stream segment of the model was assigned a 12-m wide cross-section that allowed stream width and depth to vary with flow. Model parameters were adjusted to reproduce the general observed streamflow patterns and GW level distributions in the watershed. Model results were used to compare streamflow, GW recharge and SW-GW exchange in the watershed under natural, pre-irrigation conditions; for current irrigation practices involving mainly SW diversion with flood and sprinkler irrigation; and for an irrigation scenario based solely on GW pumping for sprinkler irrigation.

Dan Pagendam - One of the best experts on this subject based on the ideXlab platform.

  • Response of groundwater level and Surface-water/groundwater Interaction to climate variability: Clarence-Moreton Basin, Australia
    Hydrogeology Journal, 2018
    Co-Authors: Tao Cui, Dan Pagendam, Mat Gilfedder, Matthias Raiber, David Rassam
    Abstract:

    Understanding the response of groundwater levels in alluvial and sedimentary basin aquifers to climatic variability and human water-resource developments is a key step in many hydrogeological investigations. This study presents an analysis of groundwater response to climate variability from 2000 to 2012 in the Queensland part of the sedimentary Clarence-Moreton Basin, Australia. It contributes to the baseline hydrogeological understanding by identifying the primary groundwater flow pattern, water-level response to climate extremes, and the resulting dynamics of Surface-water/groundwater Interaction. Groundwater-level measurements from thousands of bores over several decades were analysed using Kriging and nonparametric trend analysis, together with a newly developed three-dimensional geological model. Groundwater-level contours suggest that groundwater flow in the shallow aquifers shows local variations in the close vicinity of streams, notwithstanding general conformance with topographic relief. The trend analysis reveals that climate variability can be quickly reflected in the shallow aquifers of the Clarence-Moreton Basin although the alluvial aquifers have a quicker rainfall response than the sedimentary bedrock formations. The Lockyer Valley alluvium represents the most sensitively responding alluvium in the area, with the highest declining (−0.7 m/year) and ascending (2.1 m/year) Sen’s slope rates during and after the drought period, respectively. Different Surface-water/groundwater Interaction characteristics were observed in different catchments by studying groundwater-level fluctuations along hydrogeologic cross-sections. The findings of this study lay a foundation for future water-resource management in the study area.RésuméLa compréhension de l’évolution des niveaux piézométriques des aquifères alluviaux et des bassins sédimentaires, en réponse à la variabilité climatique et aux développements des ressources en eau pour les activités anthropiques, est. une étape clé des nombreuses investigations hydrogéologiques. Cette étude présente une analyse de l’évolution des eaux souterraines en réponse à la variabilité climatique entre 2000 et 2012, dans la partie du bassin sédimentaire de Clarence-Moreton située dans le Queensland, en Australie. Elle contribue à la connaissance de base du contexte hydrogéologique, en identifiant le modèle d’écoulement principal des eaux souterraines, la réponse des niveaux piézométriques lors des extrêmes climatiques, et les dynamiques qui en résultent dans les échanges nappe-rivière. Les mesures de niveaux piézométriques de milliers de forages, sur plusieurs décennies, ont été analysées en utilisant un krigeage et un test de tendance non paramétrique, conjointement avec un nouveau modèle géologique tridimensionnel. Les isopièzes suggèrent que les écoulements d’eau souterraine dans les aquifères peu profonds montrent des variations locales à proximité des cours d’eau, bien qu’étant globalement influencées par la topographie. L’analyse de tendance révèle que la variabilité climatique peut se répercuter rapidement sur les aquifères peu profonds du bassin de Clarence-Moreton, même si les aquifères alluviaux ont une réponse plus rapide aux précipitations que les formations du substratum sédimentaire. La vallée alluviale de Lockyer représente la partie alluviale la plus sensible de la zone, avec les plus forts taux d’évolution à la baisse (−0.7 m/an) et à la hausse (2.1 m/an), respectivement pendant et après la période de sécheresse. Des relations nappe-rivière aux caractéristiques différentes ont été observées, dans différents bassins versants, en étudiant les fluctuations piézométriques le long de coupes transversales hydrogéologiques. Les conclusions de cette étude posent les bases pour la gestion future des ressources en eau de la zone d’étude.ResumenLa comprensión de la respuesta de los niveles del agua subterránea en los acuíferos de las cuencas aluviales y sedimentarias a la variabilidad climática y a los desarrollos humanos de los recursos hídricos es un paso clave en muchas investigaciones hidrogeológicas. Este estudio presenta un análisis de la respuesta de las aguas subterráneas a la variabilidad del clima de 2000 a 2012 en la parte de Queensland de la cuenca sedimentaria de Clarence-Moreton, Australia. Contribuye a la comprensión hidrogeológica básica identificando el patrón de flujo primario de agua subterránea, la respuesta del nivel de agua a los extremos climáticos y la dinámica resultante de la interacción agua superficial/agua subterránea. Las mediciones de nivel de agua subterránea a partir de miles de pozos durante varias décadas se analizaron usando Kriging y el análisis de tendencias no paramétricas, junto con un modelo geológico tridimensional recientemente desarrollado. Los contornos del nivel del agua subterránea sugieren que el flujo de agua subterránea en los acuíferos poco profundos muestra variaciones locales en la cercanía de los arroyos, a pesar de la conformidad general con el relieve topográfico. El análisis de tendencias revela que la variabilidad climática puede reflejarse rápidamente en los acuíferos poco profundos de la cuenca Clarence-Moreton, aunque los acuíferos aluviales tienen una respuesta de precipitación más rápida que las sedimentarias. El aluvión del Valle de Lockyer representa el aluvión más sensiblemente reactivo en la zona, con las tasas de pendiente de Sen más altas (−0.7 m / año) y ascendente (2.1 m / año) durante y después del período de sequía, respectivamente. Se observaron diferentes características de interacción agua superficial/agua subterránea en diferentes captaciones mediante el estudio de las fluctuaciones del nivel del agua subterránea a lo largo de las secciones hidrogeológicas transversales. Los hallazgos de este estudio establecen una base para la futura gestión de los recursos hídricos en el área de estudio.摘要气候变化及人类对水资源的管理使用对地下水的影响是水文地质研究的一项重要内容。该研究分析和总结了澳大利亚Clarence-Moreton盆地地下水在2000到2012年间对气候变化的响应。通过对区域地下水流模式,地下水水位变化以及地表水-地下水交互数据的分析,该研究对该地区的基础水文地质提供了新的认识。研究方法主要包括对该区域跨度几十年的地下水位数据的克里金插值和趋势分析,以及基于三维地质模型的地表水-地下水交互分析。研究发现虽然浅层地下水的流动基本上受制于区域地形起伏的影响,但是河流沿岸的地下水流动更多的反映了局部地下水水位的变化。虽然冲积含水层比孔隙基岩含水层对气候变化的响应更快,总体来说该区域的浅层地下水对气候变化的响应比较快速。冲积含水层地下水位可见季节性的波动信号,孔隙基岩含水层虽不见季节性扰动信号,但是干旱期过后,地下水水位会逐年回升。根据Sen斜率分析,Lockyer Valley的冲积含水层是研究区内对气候变化最敏感的水文地质单元。在干旱期,该单元的地下水位下降速度约为0.7米/年。旱期过后,其地下水位回升的速度约为2.1米/年。借助三维地质模型,在不同的区域,可见不同的地表水-地下水交互行为。该研究取得的数据以及结果将为该区域未来的水资源管理提供新的科学支持。ResumoEntender a resposta dos níveis das águas subterrâneas em bacias aquíferas aluviais e sedimentares à variabilidade climática e aos desenvolvimentos humanos para o uso da água é um passo chave em diversas investigações hidrológicas. Esse estudo apresenta uma análise da resposta das águas subterrâneas à variabilidade climática de 2000 a 2012 na porção de Queensland da Bacia sedimentar Clarence-Moreton, Austrália. Isso contribui para o conhecimento hidrogeológico básico por identificar o padrão de fluxo primário das águas subterrâneas, respostas dos níveis à extremos climáticos, e a dinâmica resultante da interação águas superficiais/águas subterrâneas. Medidas de níveis das águas subterrâneas de milhares de poços por várias décadas foram analisadas usando Krigagem e análise de tendências não paramétricas, juntas com um desenvolvimento recente de um modelo geológico tridimensional. Os contornos dos níveis das águas subterrâneas sugerem que o fluxo das águas subterrâneas no aquífero raso apresenta variações locais nas proximidades dos cursos d’água, apesar da conformação genérica com o relevo topográfico. A análise de tendências revela que a variabilidade climática pode ser rapidamente refletida nos aquíferos rasos da Bacia Clarence-Moreton embora os aquíferos aluviais tenham uma resposta mais rápida à precipitação do que as formações de rocha matriz sedimentar. O Vale aluvial Lockyer representa o aluvião com respostas mais sensíveis presente na área, com os maiores declínios (−0.7 m/ano) e ascensões (2.1 m/ano) nas taxas de inclinação de Sen durante e depois os período de seca, respectivamente. Diferentes características da interação águas superficiais/águas subterrâneas foram observadas em diferentes bacias pelo estudo da flutuação do nível das águas subterrâneas ao longo de seções hidrogeológicas transversais. As descobertas desse estudo estabelecem uma base para a gestão futura dos recursos hídricos na área de estudo.

  • Response of groundwater level and Surface-water/groundwater Interaction to climate variability: Clarence-Moreton Basin, Australia
    Hydrogeology Journal, 2017
    Co-Authors: Tao Cui, Dan Pagendam, Mat Gilfedder, Matthias Raiber, David Rassam
    Abstract:

    Understanding the response of groundwater levels in alluvial and sedimentary basin aquifers to climatic variability and human water-resource developments is a key step in many hydrogeological investigations. This study presents an analysis of groundwater response to climate variability from 2000 to 2012 in the Queensland part of the sedimentary Clarence-Moreton Basin, Australia. It contributes to the baseline hydrogeological understanding by identifying the primary groundwater flow pattern, water-level response to climate extremes, and the resulting dynamics of Surface-water/groundwater Interaction. Groundwater-level measurements from thousands of bores over several decades were analysed using Kriging and nonparametric trend analysis, together with a newly developed three-dimensional geological model. Groundwater-level contours suggest that groundwater flow in the shallow aquifers shows local variations in the close vicinity of streams, notwithstanding general conformance with topographic relief. The trend analysis reveals that climate variability can be quickly reflected in the shallow aquifers of the Clarence-Moreton Basin although the alluvial aquifers have a quicker rainfall response than the sedimentary bedrock formations. The Lockyer Valley alluvium represents the most sensitively responding alluvium in the area, with the highest declining (−0.7 m/year) and ascending (2.1 m/year) Sen’s slope rates during and after the drought period, respectively. Different Surface-water/groundwater Interaction characteristics were observed in different catchments by studying groundwater-level fluctuations along hydrogeologic cross-sections. The findings of this study lay a foundation for future water-resource management in the study area.

Matthias Raiber - One of the best experts on this subject based on the ideXlab platform.

  • Response of groundwater level and Surface-water/groundwater Interaction to climate variability: Clarence-Moreton Basin, Australia
    Hydrogeology Journal, 2018
    Co-Authors: Tao Cui, Dan Pagendam, Mat Gilfedder, Matthias Raiber, David Rassam
    Abstract:

    Understanding the response of groundwater levels in alluvial and sedimentary basin aquifers to climatic variability and human water-resource developments is a key step in many hydrogeological investigations. This study presents an analysis of groundwater response to climate variability from 2000 to 2012 in the Queensland part of the sedimentary Clarence-Moreton Basin, Australia. It contributes to the baseline hydrogeological understanding by identifying the primary groundwater flow pattern, water-level response to climate extremes, and the resulting dynamics of Surface-water/groundwater Interaction. Groundwater-level measurements from thousands of bores over several decades were analysed using Kriging and nonparametric trend analysis, together with a newly developed three-dimensional geological model. Groundwater-level contours suggest that groundwater flow in the shallow aquifers shows local variations in the close vicinity of streams, notwithstanding general conformance with topographic relief. The trend analysis reveals that climate variability can be quickly reflected in the shallow aquifers of the Clarence-Moreton Basin although the alluvial aquifers have a quicker rainfall response than the sedimentary bedrock formations. The Lockyer Valley alluvium represents the most sensitively responding alluvium in the area, with the highest declining (−0.7 m/year) and ascending (2.1 m/year) Sen’s slope rates during and after the drought period, respectively. Different Surface-water/groundwater Interaction characteristics were observed in different catchments by studying groundwater-level fluctuations along hydrogeologic cross-sections. The findings of this study lay a foundation for future water-resource management in the study area.RésuméLa compréhension de l’évolution des niveaux piézométriques des aquifères alluviaux et des bassins sédimentaires, en réponse à la variabilité climatique et aux développements des ressources en eau pour les activités anthropiques, est. une étape clé des nombreuses investigations hydrogéologiques. Cette étude présente une analyse de l’évolution des eaux souterraines en réponse à la variabilité climatique entre 2000 et 2012, dans la partie du bassin sédimentaire de Clarence-Moreton située dans le Queensland, en Australie. Elle contribue à la connaissance de base du contexte hydrogéologique, en identifiant le modèle d’écoulement principal des eaux souterraines, la réponse des niveaux piézométriques lors des extrêmes climatiques, et les dynamiques qui en résultent dans les échanges nappe-rivière. Les mesures de niveaux piézométriques de milliers de forages, sur plusieurs décennies, ont été analysées en utilisant un krigeage et un test de tendance non paramétrique, conjointement avec un nouveau modèle géologique tridimensionnel. Les isopièzes suggèrent que les écoulements d’eau souterraine dans les aquifères peu profonds montrent des variations locales à proximité des cours d’eau, bien qu’étant globalement influencées par la topographie. L’analyse de tendance révèle que la variabilité climatique peut se répercuter rapidement sur les aquifères peu profonds du bassin de Clarence-Moreton, même si les aquifères alluviaux ont une réponse plus rapide aux précipitations que les formations du substratum sédimentaire. La vallée alluviale de Lockyer représente la partie alluviale la plus sensible de la zone, avec les plus forts taux d’évolution à la baisse (−0.7 m/an) et à la hausse (2.1 m/an), respectivement pendant et après la période de sécheresse. Des relations nappe-rivière aux caractéristiques différentes ont été observées, dans différents bassins versants, en étudiant les fluctuations piézométriques le long de coupes transversales hydrogéologiques. Les conclusions de cette étude posent les bases pour la gestion future des ressources en eau de la zone d’étude.ResumenLa comprensión de la respuesta de los niveles del agua subterránea en los acuíferos de las cuencas aluviales y sedimentarias a la variabilidad climática y a los desarrollos humanos de los recursos hídricos es un paso clave en muchas investigaciones hidrogeológicas. Este estudio presenta un análisis de la respuesta de las aguas subterráneas a la variabilidad del clima de 2000 a 2012 en la parte de Queensland de la cuenca sedimentaria de Clarence-Moreton, Australia. Contribuye a la comprensión hidrogeológica básica identificando el patrón de flujo primario de agua subterránea, la respuesta del nivel de agua a los extremos climáticos y la dinámica resultante de la interacción agua superficial/agua subterránea. Las mediciones de nivel de agua subterránea a partir de miles de pozos durante varias décadas se analizaron usando Kriging y el análisis de tendencias no paramétricas, junto con un modelo geológico tridimensional recientemente desarrollado. Los contornos del nivel del agua subterránea sugieren que el flujo de agua subterránea en los acuíferos poco profundos muestra variaciones locales en la cercanía de los arroyos, a pesar de la conformidad general con el relieve topográfico. El análisis de tendencias revela que la variabilidad climática puede reflejarse rápidamente en los acuíferos poco profundos de la cuenca Clarence-Moreton, aunque los acuíferos aluviales tienen una respuesta de precipitación más rápida que las sedimentarias. El aluvión del Valle de Lockyer representa el aluvión más sensiblemente reactivo en la zona, con las tasas de pendiente de Sen más altas (−0.7 m / año) y ascendente (2.1 m / año) durante y después del período de sequía, respectivamente. Se observaron diferentes características de interacción agua superficial/agua subterránea en diferentes captaciones mediante el estudio de las fluctuaciones del nivel del agua subterránea a lo largo de las secciones hidrogeológicas transversales. Los hallazgos de este estudio establecen una base para la futura gestión de los recursos hídricos en el área de estudio.摘要气候变化及人类对水资源的管理使用对地下水的影响是水文地质研究的一项重要内容。该研究分析和总结了澳大利亚Clarence-Moreton盆地地下水在2000到2012年间对气候变化的响应。通过对区域地下水流模式,地下水水位变化以及地表水-地下水交互数据的分析,该研究对该地区的基础水文地质提供了新的认识。研究方法主要包括对该区域跨度几十年的地下水位数据的克里金插值和趋势分析,以及基于三维地质模型的地表水-地下水交互分析。研究发现虽然浅层地下水的流动基本上受制于区域地形起伏的影响,但是河流沿岸的地下水流动更多的反映了局部地下水水位的变化。虽然冲积含水层比孔隙基岩含水层对气候变化的响应更快,总体来说该区域的浅层地下水对气候变化的响应比较快速。冲积含水层地下水位可见季节性的波动信号,孔隙基岩含水层虽不见季节性扰动信号,但是干旱期过后,地下水水位会逐年回升。根据Sen斜率分析,Lockyer Valley的冲积含水层是研究区内对气候变化最敏感的水文地质单元。在干旱期,该单元的地下水位下降速度约为0.7米/年。旱期过后,其地下水位回升的速度约为2.1米/年。借助三维地质模型,在不同的区域,可见不同的地表水-地下水交互行为。该研究取得的数据以及结果将为该区域未来的水资源管理提供新的科学支持。ResumoEntender a resposta dos níveis das águas subterrâneas em bacias aquíferas aluviais e sedimentares à variabilidade climática e aos desenvolvimentos humanos para o uso da água é um passo chave em diversas investigações hidrológicas. Esse estudo apresenta uma análise da resposta das águas subterrâneas à variabilidade climática de 2000 a 2012 na porção de Queensland da Bacia sedimentar Clarence-Moreton, Austrália. Isso contribui para o conhecimento hidrogeológico básico por identificar o padrão de fluxo primário das águas subterrâneas, respostas dos níveis à extremos climáticos, e a dinâmica resultante da interação águas superficiais/águas subterrâneas. Medidas de níveis das águas subterrâneas de milhares de poços por várias décadas foram analisadas usando Krigagem e análise de tendências não paramétricas, juntas com um desenvolvimento recente de um modelo geológico tridimensional. Os contornos dos níveis das águas subterrâneas sugerem que o fluxo das águas subterrâneas no aquífero raso apresenta variações locais nas proximidades dos cursos d’água, apesar da conformação genérica com o relevo topográfico. A análise de tendências revela que a variabilidade climática pode ser rapidamente refletida nos aquíferos rasos da Bacia Clarence-Moreton embora os aquíferos aluviais tenham uma resposta mais rápida à precipitação do que as formações de rocha matriz sedimentar. O Vale aluvial Lockyer representa o aluvião com respostas mais sensíveis presente na área, com os maiores declínios (−0.7 m/ano) e ascensões (2.1 m/ano) nas taxas de inclinação de Sen durante e depois os período de seca, respectivamente. Diferentes características da interação águas superficiais/águas subterrâneas foram observadas em diferentes bacias pelo estudo da flutuação do nível das águas subterrâneas ao longo de seções hidrogeológicas transversais. As descobertas desse estudo estabelecem uma base para a gestão futura dos recursos hídricos na área de estudo.

  • Response of groundwater level and Surface-water/groundwater Interaction to climate variability: Clarence-Moreton Basin, Australia
    Hydrogeology Journal, 2017
    Co-Authors: Tao Cui, Dan Pagendam, Mat Gilfedder, Matthias Raiber, David Rassam
    Abstract:

    Understanding the response of groundwater levels in alluvial and sedimentary basin aquifers to climatic variability and human water-resource developments is a key step in many hydrogeological investigations. This study presents an analysis of groundwater response to climate variability from 2000 to 2012 in the Queensland part of the sedimentary Clarence-Moreton Basin, Australia. It contributes to the baseline hydrogeological understanding by identifying the primary groundwater flow pattern, water-level response to climate extremes, and the resulting dynamics of Surface-water/groundwater Interaction. Groundwater-level measurements from thousands of bores over several decades were analysed using Kriging and nonparametric trend analysis, together with a newly developed three-dimensional geological model. Groundwater-level contours suggest that groundwater flow in the shallow aquifers shows local variations in the close vicinity of streams, notwithstanding general conformance with topographic relief. The trend analysis reveals that climate variability can be quickly reflected in the shallow aquifers of the Clarence-Moreton Basin although the alluvial aquifers have a quicker rainfall response than the sedimentary bedrock formations. The Lockyer Valley alluvium represents the most sensitively responding alluvium in the area, with the highest declining (−0.7 m/year) and ascending (2.1 m/year) Sen’s slope rates during and after the drought period, respectively. Different Surface-water/groundwater Interaction characteristics were observed in different catchments by studying groundwater-level fluctuations along hydrogeologic cross-sections. The findings of this study lay a foundation for future water-resource management in the study area.