scholarly journals Evaluation of groundwater storage monitoring with the GRACE satellite: Case study of the High Plains aquifer, central United States

2009 ◽  
Vol 45 (5) ◽  
Author(s):  
Gil Strassberg ◽  
Bridget R. Scanlon ◽  
Don Chambers
Keyword(s):  
United States ◽  
High Plains ◽  
High Plains Aquifer ◽  
Groundwater Storage ◽  
Central United States ◽  
Grace Satellite

The Transportation – Production Tradeoff in the Regional Environmental Impact of Industrial Systems: A Case Study in the Paper Sector

2000 ◽  
Vol 32 (5) ◽  
pp. 817-832 ◽  
Author(s):  
Francis M Vanek
Keyword(s):  
United States ◽  
Environmental Policy ◽  
Environmental Impact ◽  
Distribution System ◽  
Raw Material ◽  
Commodity Flow ◽  
Industrial Systems ◽  
Central United States ◽  
Product Manufacturing

The author presents a methodology which is used first to model a product-manufacturing-and-distribution system, and then to predict the resulting changes in environmental impact from changes either in taxation or in costs of inputs. A case study of the paper sector in the eastern and central United States is developed, derived from the 1993 US Commodity Flow Survey. From an analysis of five scenarios, two central findings arise: (1) the model is found to be unresponsive to even large changes in transport taxation, so an environmental policy which considers both transportation and production aspects at the same time is favored, and (2) fluctuations in raw-material costs can have an influence on environmental impact as great as or greater than that of changes in taxation levels.

scholarly journals Effects of Irrigation on Summer Precipitation over the United States

2016 ◽  
Vol 29 (10) ◽  
pp. 3541-3558 ◽  
Author(s):  
Lisi Pei ◽  
Nathan Moore ◽  
Shiyuan Zhong ◽  
Anthony D. Kendall ◽  
Zhiqiu Gao ◽  
...  
Keyword(s):  
United States ◽  
Irrigation Water ◽  
Land Surface ◽  
Large Scale ◽  
The United States ◽  
High Plains ◽  
Pressure System ◽  
Typical Application ◽  
Central United States ◽  
Mean Square Errors

Abstract Irrigation’s effects on precipitation during an exceptionally dry summer (June–August 2012) in the United States were quantified by incorporating a novel dynamic irrigation scheme into the Weather Research and Forecasting (WRF) Model. The scheme is designed to represent a typical application strategy for farmlands across the conterminous United States (CONUS) and a satellite-derived irrigation map was incorporated into the WRF-Noah-Mosaic module to realistically trigger the irrigation. Results show that this new irrigation approach can dynamically generate irrigation water amounts that are in close agreement with the actual irrigation water amounts across the high plains (HP), where the prescribed scheme best matches real-world irrigation practices. Surface energy and water budgets have been substantially altered by irrigation, leading to modified large-scale atmospheric circulations. In the studied dry summer, irrigation was found to strengthen the dominant interior high pressure system over the southern and central United States and deepen the trough over the upper Midwest. For the HP and central United States, the rainfall amount is slightly reduced over irrigated areas, likely as a result of a reduction in both local convection and large-scale moisture convergence resulting from interactions and feedbacks between the land surface and atmosphere. In areas downwind of heavily irrigated regions, precipitation is enhanced, resulting in a 20%–100% reduction in the dry biases (relative to the observations) simulated over a large portion of the downwind areas without irrigation in the model. The introduction of irrigation reduces the overall mean biases and root-mean-square errors in the simulated daily precipitation over the CONUS.

Sustainability of aquifers supporting irrigated agriculture: a case study of the High Plains aquifer in Kansas

2018 ◽  
Vol 43 (6) ◽  
pp. 815-828 ◽  
Author(s):  
James J. Butler ◽  
Donald O. Whittemore ◽  
B. Brownie Wilson ◽  
Geoffrey C. Bohling
Keyword(s):  
Irrigated Agriculture ◽  
High Plains ◽  
High Plains Aquifer

scholarly journals Evaluation of the Quality of Precipitation Products: A Case Study Using WRF and IMERG Data over the Central United States

2018 ◽  
Vol 19 (12) ◽  
pp. 2007-2020 ◽  
Author(s):  
Jiaying Zhang ◽  
Liao-Fan Lin ◽  
Rafael L. Bras
Keyword(s):  
United States ◽  
Air Temperature ◽  
Auxiliary Information ◽  
Wrf Model ◽  
Stage Iv ◽  
Weather Research And Forecasting ◽  
Central United States ◽  
Precipitation Estimates

Abstract Hydrological applications rely on the availability and quality of precipitation products, especially model- and satellite-based products for use in areas without ground measurements. It is known that the quality of model- and satellite-based precipitation products is complementary: model-based products exhibit high quality during cold seasons while satellite-based products are better during warm seasons. To explore the complementary behavior of the quality of the precipitation products, this study uses 2-m air temperature as auxiliary information to evaluate high-resolution (0.1°/hourly) precipitation estimates from the Weather Research and Forecasting (WRF) Model and from the version 5 Integrated Multisatellite Retrievals for GPM (IMERG) algorithm (i.e., early and final runs). The products are evaluated relative to the reference NCEP Stage IV precipitation estimates over the central United States during August 2015–July 2017. Results show that the IMERG final-run estimates are nearly unbiased, while the IMERG early-run and the WRF estimates are positively biased. The WRF estimates exhibit high correlations with the reference data when the temperature falls below 280 K. The IMERG estimates, both early and final runs, do so when the temperature exceeds 280 K. Moreover, the complementary behavior of the WRF and the IMERG products conditioned on air temperature does not vary with either season or location.

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