Showing 1 - 10 of 4,549
This document is a preliminary effort to draw together some of the important simulation models that are available to Reclamation or that have been developed by Reclamation since 1987. This document has also attempted to lay out a framework by which these models might be used both for the...
Persistent link: https://www.econbiz.de/10009436725
In the past few years, many states have established specific regulations for the management of petroleum industry wastes containing naturally occurring radioactive material (NORM) above specified thresholds. These regulations have limited the number of disposal options available for...
Persistent link: https://www.econbiz.de/10009437285
long-term decision processes such as those that address contamination cleanup programs, long-term environmental stewardship …
Persistent link: https://www.econbiz.de/10009436073
This report presents guidelines for evaluating uncertainty in mathematical equations and computer models applied to assess human health and environmental risk. Uncertainty analyses involve the propagation of uncertainty in model parameters and model structure to obtain confidence statements for...
Persistent link: https://www.econbiz.de/10009437377
Human and earth systems are extremely complex processes. The modeling of these systems to assess the effects of climate change is an activity fraught with uncertainty. System models typically involve the linking of a series of computer codes, each of which is a detailed model of some physical or...
Persistent link: https://www.econbiz.de/10009435379
Environmental characterization is necessary to support remediation and monitoring decisions and to construct and validate contaminant dispersion models. The more samples obtained, the greater is the protection against making incorrect decisions. However, taking too many samples wastes valuable...
Persistent link: https://www.econbiz.de/10009435427
The purpose of this paper is to document the results of our application of the Edmonds-Reilly Model (ERM) using several scenarios provided for an Organization for Economic Cooperation and Development (OECD) project comparing global models. Because the output of this exercise is data-rich, most...
Persistent link: https://www.econbiz.de/10009435505
This technical memorandum examines the role of atmospheric dispersion modeling and meteorological monitoring in support of emergency planning and response for the US Army's Chemical Stockpile Disposal Program (CSDP). Air dispersion modeling and meteorological monitoring are expected to form key...
Persistent link: https://www.econbiz.de/10009435602
Over the past several decades, the development of computer models to predict the atmospheric transport of hazardous material across a local (on the order of 10s of km) to mesoscale (on the order of 100s of km) region has received considerable attention, for both regulatory purposes, and to guide...
Persistent link: https://www.econbiz.de/10009435983
Human and earth systems are extremely complex processes. The modeling of these systems to assess the effects of climate change is an activity fraught with uncertainty. System models typically involve the linking of a series of computer codes, each of which is a detailed model of some physical or...
Persistent link: https://www.econbiz.de/10009436467