Relating climatic attributes and water resources allocation: A study using surface water supply and soil moisture indices in the Snake River basin, Idaho

Hoekema, David J.; Sridhar, Venkataramana

doi:10.1029/2010wr009697

Cited by 36 publications

(33 citation statements)

References 66 publications

(67 reference statements)

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“…Although this method removes the need for iterative flood control and the use of a perfect forecast, it assumes no major shift in precipitation patterns. An analysis of historic precipitation trends in the Snake River basin between 1971 and 2005 indicate minimal shifts in seasonal precipitation (Hoekema and Sridhar, ). Studies by Mote et al .…”

Section: Model Development Calibration and Validationmentioning

confidence: 99%

A System Dynamics Model for Conjunctive Management of Water Resources in the Snake River Basin

Hoekema

Sridhar

2013

J American Water Resour Assoc

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The Pacific Northwest is expected to witness changes in temperature and precipitation due to climate change. In this study, we enhance the Snake River Planning Model (SRPM) by modeling the feedback loop between incidental recharge and surface water supply resulting from surface water and groundwater extraction for irrigation and provide a case study involving climate change impacts and management scenarios. The new System Dynamics-Snake River Planning Model (SD-SRPM) is calibrated to flow at Box Canyon Springs located along a major outlet of the East Snake Plain Aquifer. A calibration of the model to flow at Box Canyon Springs, based on historic diversions (1950-1995) resulted in an r2 value of 0.74 and a validation (1996-2005) r2 value of 0.60. After adding irrigation entities to the model an r2 value of 0.91, 0.88, and 0.87 were maintained for modeled vs. observed (1991-2005) end-of-month reservoir content in Jackson Lake, Palisades, and American Falls, the three largest irrigation reservoirs in the system. The scenarios that compared the impacts of climate change were based on ensemble mean precipitation change scenarios and estimated changes to crop evapotranspiration (ET). Increased ET, despite increased precipitation, generally increased surface water shortages and discharge of springs. This study highlights the need to develop and implement models that integrate the human-natural system to understand the impacts of climate change

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Section: Model Development Calibration and Validationmentioning

confidence: 99%

A System Dynamics Model for Conjunctive Management of Water Resources in the Snake River Basin

Hoekema

Sridhar

2013

J American Water Resour Assoc

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“…Another study by Hoekema and Sridhar () utilized a stepwise relationship that is revealed by plotting SWSI values vs . diversion rates for canals across the Snake River from 1971 to 2005.…”

Section: Introductionmentioning

confidence: 99%

“…Another study by Hoekema and Sridhar (2011) utilized a stepwise relationship that is revealed by plotting SWSI values vs. diversion rates for canals across the Snake River from 1971 to 2005. As water supply (or SWSI value) increased, diversions increased until a threshold was reached.…”

Section: Introductionmentioning

confidence: 99%

Characterizing Drought in Irrigated Agricultural Systems: The Surface Water Delivery Index (SWDI)

Hoekema¹,

Ryu

2016

J American Water Resour Assoc

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Quantifying surface water shortages in arid and semiarid agricultural regions is challenging because limited water supplies are distributed over long distances based on complex water management systems constrained by legal, economic, and social frameworks that evolve with time. In such regions, the water supply is often derived in a climate dramatically different from where the water is diverted to meet agricultural demand. The existing drought indices which rely on local climate do not portray the complexities of the economic and legal constraints on water delivery. Nor do these indices quantify the shortages that occur in drought. Therefore, this research proposes a methodological approach to define surface water shortages in irrigated agricultural systems using a newly developed index termed the Surface Water Delivery Index (SWDI). The SWDI can be used to uniformly quantify surface water deficits/shortages at the end of the irrigation season. Results from the SWDI clearly illustrate how water shortages in droughts identified by the existing indices (e.g., SPI and PDSI) vary strongly both within and between basins. Some surface water entities are much more prone to water shortages than other entities based both on their source of water supply and water right portfolios.

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“…During drought, farmers in primarily rain-fed areas may implement short-term irrigation (i.e., a LULCC) to increase soil moisture, which puts pressure on regional aquifers and surface water sources [82,83]. These irrigation practices are a key management response to drought conditions [84], but they alter the landscape pattern (e.g., through creating CPI) in a manner that affects the entire hydrologic processes [85,86], which has an important impact on water cycling and community dynamics [87]. We test the relationship between CPI and groundwater recharge to establish a linkage between the pattern and process.…”

Section: Linking Landscape Patterns To Ecological Processesmentioning

confidence: 99%

A Land Systems Science Framework for Bridging Land System Architecture and Landscape Ecology: A Case Study from the Southern High Plains

Vadjunec

Frazier

Kedron

et al. 2018

Land

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Abstract:Resource-use decisions affect the ecological and human components of the coupled human and natural system (CHANS), but a critique of some frameworks is that they do not address the complexity and tradeoffs within and between the two systems. Land system architecture (LA) was suggested to account for these tradeoffs at multiple levels/scales. LA and landscape ecology (LE) focus on landscape structure (i.e., composition and configuration of land-use and land-cover change [LULCC]) and the processes (social-ecological) resulting from and shaping LULCC. Drawing on mixed-methods research in the Southern Great Plains, we develop a framework that incorporates LA, LE, and governance theory. Public land and water are commons resources threatened by overuse, degradation, and climate change. Resource use is exacerbated by public land and water policies at the state-and local-levels. Our framework provides a foundation for investigating the mechanisms of land systems science (LSS) couplings across multiple levels/scales to understand how and why governance impacts human LULCC decisions (LA) and how those LULCC patterns influence, and are influenced by, the underlying ecological processes (LE). This framework provides a mechanism for investigating the feedbacks between and among the different system components in a CHANS that subsequently impact future human design decisions.

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Relating climatic attributes and water resources allocation: A study using surface water supply and soil moisture indices in the Snake River basin, Idaho

Cited by 36 publications

References 66 publications

A System Dynamics Model for Conjunctive Management of Water Resources in the Snake River Basin

A System Dynamics Model for Conjunctive Management of Water Resources in the Snake River Basin

Characterizing Drought in Irrigated Agricultural Systems: The Surface Water Delivery Index (SWDI)

A Land Systems Science Framework for Bridging Land System Architecture and Landscape Ecology: A Case Study from the Southern High Plains

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