Impact of Climate Oscillations/indices on Hydrological Variables in the Mississippi River Valley Alluvial Aquifer

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Total Pages : 0 pages
Book Rating : 4.:/5 (133 download)

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Book Synopsis Impact of Climate Oscillations/indices on Hydrological Variables in the Mississippi River Valley Alluvial Aquifer by : Meena Raju

Download or read book Impact of Climate Oscillations/indices on Hydrological Variables in the Mississippi River Valley Alluvial Aquifer written by Meena Raju and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Mississippi River Valley Alluvial Aquifer (MRVAA) is one of the most productive agricultural regions in the United States. The main objectives of this research are to identify long term trends and change points in hydrological variables (streamflow and rainfall), to assess the relationship between hydrological variables, and to evaluate the influence of global climate indices on hydrological variables. Non-parametric tests, MMK and Pettitt’s tests were used to analyze trend and change points. PCC and Streamflow elasticity analysis were used to analyze the relationship between streamflow and rainfall and the sensitivity of streamflow to rainfall changes. PCC and MLR analysis were used to evaluate the relationship between climate indices and hydrological variables and the combined effect of climate indices with hydrological variables. The results of the trend analysis indicated spatial variability within the aquifer, increase in streamflow and rainfall in the Northern region of the aquifer, while a decrease was observed in the southern region of the aquifer. Change point analysis of annual maximum, annual mean streamflow and annual precipitation revealed that statistically decreasing shifts occurred in 2001, 1998 and 1995, respectively. Results of PCC analysis indicated that streamflow and rainfall has a strong positive relationship between them with PCC values more than 0.6 in most of the locations within the basin. Results of the streamflow elasticity for the locations ranged from 0.987 to 2.33 for the various locations in the basin. Results of the PCC analysis for monthly maximum and mean streamflow showed significant maximum positive correlation coefficient for Nino 3.4. Monthly maximum rainfall showed a maximum significant positive correlation coefficient for PNA and Nino3.4 and the monthly mean rainfall showed a maximum significant positive correlation coefficient of 0.18 for Nino3.4. Results of the MLR analysis showed a maximum significant positive correlation coefficient of 0.31 for monthly maximum and mean streamflow of 0.21 and 0.23 for monthly maximum and mean rainfall, respectively. Overall, results from this research will help in understanding the impacts of global climate indices on rainfall and subsequently on streamflow discharge, so as to mitigate and manage water resource availability in the MRVAA underlying the LMRB.

Hydrology of the Mississippi River Valley Alluvial Aquifer, South-central United States

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ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.3/5 (121 download)

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Book Synopsis Hydrology of the Mississippi River Valley Alluvial Aquifer, South-central United States by : D. J. Ackerman

Download or read book Hydrology of the Mississippi River Valley Alluvial Aquifer, South-central United States written by D. J. Ackerman and published by . This book was released on 1989 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Modeling Effects of Climatological Variability and Management Practices on Conservation of Groundwater from the Mississippi River Valley Shallow Alluvial Aquifer in the Mississippi Delta Region

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Book Synopsis Modeling Effects of Climatological Variability and Management Practices on Conservation of Groundwater from the Mississippi River Valley Shallow Alluvial Aquifer in the Mississippi Delta Region by :

Download or read book Modeling Effects of Climatological Variability and Management Practices on Conservation of Groundwater from the Mississippi River Valley Shallow Alluvial Aquifer in the Mississippi Delta Region written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ninety-eight percent of water taken from the Mississippi River Shallow Alluvial Aquifer, hereafter referred to as "the aquifer" or "MRVA," is used by the agricultural industry for irrigation. Mississippi Delta agriculture is increasingly using more water from the MRVA and the aquifer has been losing about 300,000 acre-feet per year. This research expands on previous work in which a model was developed that simulates the effects of climatic variability, crop acreage changes, and specific irrigation methods on consequent variations in the water volume of the MRVA. This study corrects an identified problem by replacing total growing season precipitation with an irrigation demand driver based on evaporation and crop coefficients and changing the time scale from the entire growing season to a daily resolution. The calculated irrigation demand, as a climatological driver for the model, captures effective precipitation more precisely than the initial growing season precipitation driver. Predictive equations resulting from regression analyses of measured versus calculated irrigation water use showed R2 and correlations of 0.33 and 0.57, 0.77 and 0.88, 0.71 and 0.84, and 0.68 and 0.82 for cotton, corn, soybeans and rice, respectively. Ninety-five percent of the predicted values fall within a range of + or - about 23,000 acre-feet, an error of about 10-percent. The study also adds an additional conservation strategy through the use of surface water from on-farm reservoirs in lieu of groundwater. Analyses show that climate could provide the entire water need of the plants in 70-percent of the years for corn, 65-percent of the years for soybeans and cotton, and even 5-percent of the years for rice. Storing precipitation in on-farm structures is an effective way to reduce reliance of Delta producers on groundwater. If producers adopted, at a minimum, the 97.5:2.5 ratio suggested management practice, this minimal management strategy could potentially conserve 48-percent, 35-percent and 42-percent of groundwater for cotton, corn and soybeans, respectively. Even in extreme drought years such as 2007, cotton, corn and soybeans produced under the 97.5:2.5 management strategy could conserve 32-percent, 46-percent and 38-percent of groundwater, respectively.

Hydrology of the Mississippi River Valley Alluvial Aquifer, South-Central United States

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ISBN 13 :
Total Pages : 115 pages
Book Rating : 4.:/5 (123 download)

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Book Synopsis Hydrology of the Mississippi River Valley Alluvial Aquifer, South-Central United States by : D. J. Ackerman

Download or read book Hydrology of the Mississippi River Valley Alluvial Aquifer, South-Central United States written by D. J. Ackerman and published by . This book was released on 1990 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Simulation of Ground-water Flow in the Mississippi River Valley Alluvial Aquifer in Eastern Arkansas

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ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Simulation of Ground-water Flow in the Mississippi River Valley Alluvial Aquifer in Eastern Arkansas by : Gary L. Mahon

Download or read book Simulation of Ground-water Flow in the Mississippi River Valley Alluvial Aquifer in Eastern Arkansas written by Gary L. Mahon and published by . This book was released on 1990 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Climate Variability and Change

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ISBN 13 : 9781901502787
Total Pages : 738 pages
Book Rating : 4.5/5 (27 download)

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Book Synopsis Climate Variability and Change by : Flow Regimes from International Experimental and Network Data (Project)

Download or read book Climate Variability and Change written by Flow Regimes from International Experimental and Network Data (Project) and published by . This book was released on 2006 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains 117 reviewed papers from over 30 countries, published in English, French and Spanish, which reflect both international dimension of FRIEND and the key challenges facing hydrologists in the 21st century.

Hydrology of the Mississippi River Valley Alluvial Aquifer, South-central United States

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ISBN 13 :
Total Pages : 74 pages
Book Rating : 4.:/5 (28 download)

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Book Synopsis Hydrology of the Mississippi River Valley Alluvial Aquifer, South-central United States by : D. J. Ackerman

Download or read book Hydrology of the Mississippi River Valley Alluvial Aquifer, South-central United States written by D. J. Ackerman and published by . This book was released on 1989 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Review of the Report Upon the Physics and Hydraulics of the Mississippi River

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ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.3/5 (117 download)

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Book Synopsis A Review of the Report Upon the Physics and Hydraulics of the Mississippi River by : Edwin Hale Abbot

Download or read book A Review of the Report Upon the Physics and Hydraulics of the Mississippi River written by Edwin Hale Abbot and published by . This book was released on 1862 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Hydrology Of The Mississippi River Valley Alluvial Aquifer, South-Central United States... Regional Aquifer Analysis... U.S. Geological Survey Professional Paper 1416-D

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Total Pages : pages
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Book Synopsis Hydrology Of The Mississippi River Valley Alluvial Aquifer, South-Central United States... Regional Aquifer Analysis... U.S. Geological Survey Professional Paper 1416-D by :

Download or read book Hydrology Of The Mississippi River Valley Alluvial Aquifer, South-Central United States... Regional Aquifer Analysis... U.S. Geological Survey Professional Paper 1416-D written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Effect of Groundwater Withdrawals from the Mississippi River Valley Alluvial Aquifer on Water Quantity and Quality in the Mississippi Delta

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Total Pages : 136 pages
Book Rating : 4.:/5 (868 download)

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Book Synopsis The Effect of Groundwater Withdrawals from the Mississippi River Valley Alluvial Aquifer on Water Quantity and Quality in the Mississippi Delta by : Jeannie R. B. Barlow

Download or read book The Effect of Groundwater Withdrawals from the Mississippi River Valley Alluvial Aquifer on Water Quantity and Quality in the Mississippi Delta written by Jeannie R. B. Barlow and published by . This book was released on 2013 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Watersheds within northwestern Mississippi, a productive agricultural region referred to as the Delta, were recently identified as contributors of total nitrogen and phosphorus fluxes to the Gulf of Mexico. Water withdrawals for irrigation in the Delta have altered flow paths between surface-water and groundwater systems, allowing for more surface-water losses to the underlying alluvial aquifer. In order to understand how to manage nitrogen in a watershed, it is necessary to identify and quantify hydrologic flow paths and biogeochemical conditions along these flow paths, which ultimately combine to determine transport and fate. In order to evaluate the extent and role of surface-water losses to the alluvial aquifer on the transport of nitrate, a two-dimensional groundwater/surface-water exchange model was developed for a site within the Delta. Results from this model determined that groundwater/surface-water exchange at the site occurred regularly and recharge was laterally extensive into the alluvial aquifer. Nitrate was consistently reported in surface-water samples (n= 52, median concentration = 39.8 micromole/L), although never detected in samples collected from instream or near stream piezometers )n=46). Coupled model and water-quality results support the case for denitrification/ nitrate loss from surface water moving through an anoxic streambed. At larger scale, recent results from two Spatially Referenced Regressions on Watershed attributes (SPARROW) models imply that nitrogen is transported relatively conservatively once it enters the main channel of the Big Sunflower River Basin, which contributes much of the water discharging from the Yazoo River Basin to the Mississippi River. Net loss of nitrogen was assessed by comparing total nitrogen data from Lagrangian sampling events to chloride, drainage area, and predicted total nitrogen flux results from the SPARROW models. Results indicated relatively conservative instream transport of nitrogen at the scale of the Big Sunflower River Basin; however, two potential nitrogen loss mechanisms were identified: (1) transport and transformation of nitrogen through the streambed, and (2) sequestration and transformation of nitrogen above the drainage control structures downstream of Anguilla.

Development of an Interactive Model Predicting Climatological and Cultural Influences on Annual Groundwater Volume in the Mississippi Delta Shallow Alluvial Aquifer

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Total Pages : pages
Book Rating : 4.:/5 (636 download)

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Book Synopsis Development of an Interactive Model Predicting Climatological and Cultural Influences on Annual Groundwater Volume in the Mississippi Delta Shallow Alluvial Aquifer by : Tia Lení Merrell

Download or read book Development of an Interactive Model Predicting Climatological and Cultural Influences on Annual Groundwater Volume in the Mississippi Delta Shallow Alluvial Aquifer written by Tia Lení Merrell and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Water volume in the shallow alluvial aquifer in the Mississippi Delta region is subject to seasonal declines and annual fluctuations caused by both climatological variability and crop water use variations from year-to-year. The most recently documented water volume decline in the aquifer is estimated at 500,000 acre-feet. Available climate, crop acreage, irrigation water use, and groundwater decline data from Sunflower County, MS are used to evaluate the climate-groundwater interactions in the Mississippi Delta region. This research produced a model that simulates the effects of climatic variability, crop acreage changes, and specific irrigation methods on consequent variations in the water volume in the aquifer. Climatic variability is accounted for in the model by predicative equations that relate annual measured plant water use (irrigation) to growing season precipitation amounts. This derived relationship allows the application of a long-term climatological record to simulate the cumulative impact of climate on groundwater used for irrigation.

The Mississippi River Valley Alluvial Aquifer in Mississippi

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ISBN 13 :
Total Pages : 2 pages
Book Rating : 4.:/5 (479 download)

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Book Synopsis The Mississippi River Valley Alluvial Aquifer in Mississippi by : G. J. Dalsin

Download or read book The Mississippi River Valley Alluvial Aquifer in Mississippi written by G. J. Dalsin and published by . This book was released on 1978 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Evaluation of Selected Model Constraints and Variables on Simulated Sustainable Yield from the Mississippi River Valley Alluvial Aquifer System in Arkansas

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ISBN 13 :
Total Pages : 21 pages
Book Rating : 4.:/5 (259 download)

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Book Synopsis Evaluation of Selected Model Constraints and Variables on Simulated Sustainable Yield from the Mississippi River Valley Alluvial Aquifer System in Arkansas by : John B. Czarnecki

Download or read book Evaluation of Selected Model Constraints and Variables on Simulated Sustainable Yield from the Mississippi River Valley Alluvial Aquifer System in Arkansas written by John B. Czarnecki and published by . This book was released on 2008 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Water Levels and Water Quality in the Mississippi River Valley Alluvial Aquifer in Eastern Arkansas, 2012

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ISBN 13 : 9781411339231
Total Pages : 63 pages
Book Rating : 4.3/5 (392 download)

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Book Synopsis Water Levels and Water Quality in the Mississippi River Valley Alluvial Aquifer in Eastern Arkansas, 2012 by : Tony P. Schrader

Download or read book Water Levels and Water Quality in the Mississippi River Valley Alluvial Aquifer in Eastern Arkansas, 2012 written by Tony P. Schrader and published by . This book was released on 2015 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Investigating the Effects of Land Cover Change and Climate Variability on the Land Surface Hydrology of the Mississippi River Basin

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ISBN 13 :
Total Pages : 174 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Investigating the Effects of Land Cover Change and Climate Variability on the Land Surface Hydrology of the Mississippi River Basin by : Tracy E. Twine

Download or read book Investigating the Effects of Land Cover Change and Climate Variability on the Land Surface Hydrology of the Mississippi River Basin written by Tracy E. Twine and published by . This book was released on 2004 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Water Levels and Selected Water-quality Conditions in the Mississippi River Valley Alluvial Aquifer in Eastern Arkansas, 2014

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ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (126 download)

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Book Synopsis Water Levels and Selected Water-quality Conditions in the Mississippi River Valley Alluvial Aquifer in Eastern Arkansas, 2014 by : Kirk D. Rodgers

Download or read book Water Levels and Selected Water-quality Conditions in the Mississippi River Valley Alluvial Aquifer in Eastern Arkansas, 2014 written by Kirk D. Rodgers and published by . This book was released on 2020 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Simulation of Ground-water Flow in the Mississippi River Valley Alluvial Aquifer in Eastern Arkansas

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ISBN 13 :
Total Pages : 83 pages
Book Rating : 4.:/5 (974 download)

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Book Synopsis Simulation of Ground-water Flow in the Mississippi River Valley Alluvial Aquifer in Eastern Arkansas by : Gary L. Mahon

Download or read book Simulation of Ground-water Flow in the Mississippi River Valley Alluvial Aquifer in Eastern Arkansas written by Gary L. Mahon and published by . This book was released on 1990 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: