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Allen S. Lefohn H. Peter Knudsen Jennifer A. Logan Jeanne Simpson Chandrakant Bhumralkar 《Journal of the Air & Waste Management Association (1995)》2013,63(5):595-602
Using kriging, a statistical technique, the National Crop Loss Assessment Network (NCLAN) program estimated growing season 5-month (May-September) ambient 7-h mean O3 concentrations for each of the major crop growing areas of the United States for 1978-1982. The O3 estimates were used to predict economic benefits anticipated by lowering O3 levels in the United States. This paper reviews NCLAN’s use of kriging to estimate 7-h seasonal mean O3 concentrations for crop growing regions. Although the original kriging program used by NCLAN incorrectly calculated the diagonal elements of the kriging equations, this omission did not result in significant errors in the predicted estimates. Most of the data used in estimating the 7-h seasonal values were obtained from urban areas; the use of these data tended to underestimate the 7-h seasonal O3 concentrations in rural areas. It is recommended that only O3 data that are representative of agricultural areas and have been collected under accepted quality assurance programs be used In future kriging efforts. 相似文献
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Pattanayak Dhruti Sundar Pal Dharm Mishra Jyoti Thakur Chandrakant Wasewar Kailas L. 《Environmental science and pollution research international》2023,30(10):24919-24926
Environmental Science and Pollution Research - Tetracyclines (TCs) antibiotics are very common and often used in both human and veterinary medicines. More than 75% of TCs are excreted in an active... 相似文献
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