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in creator/contributor: "Dickerson, Marvin H."

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An updated summary of MATHEW/ADPIC model evaluation studies

This paper summarizes the major model evaluation studies conducted for the MATHEW/ADPIC atmospheric transport and diffusion models used by the US Department of Energy's Atmospheric Release Advisory Capability. These studies have taken place over the last 15 years and involve field tracer releases influenced by a variety of meteorological and topographical conditions. Neutrally buoyant tracers released both as surface and elevated point sources, as well as material dispersed by explosive, therma… more

Date: May 1, 1990

Creator: Foster, Kevin T. & Dickerson, Marvin H.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Atmospheric Studies in Complex Terrain Progress Report: 1980

An overview of the accomplishments of the DOE Atmospheric Studies in Complex Terrain (ASCOT) program during FY-1980 is presented. Fiscal Year 1980 was the second in a three to four year ASCOT study being conducted in The Geysers area of Northern California to achieve the following objectives: to augment the present knowledge of the physical mechanisms involved in the development, perpetuation, and breakup of nocturnal drainage flows; to develop an integrated measurement and modeling methodology… more

Date: November 1980

Creator: Dickerson, Marvin H. & Gudiksen, Paul H.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Elements of a national emergency response system for nuclear accidents

The purpose of this paper is to suggest elements for a general emergency response system, employed at a national level, to detect, evaluate and assess the consequences of a radiological atmospheric release occurring within or outside of national boundaries. These elements are focused on the total aspect of emergency response ranging from providing an initial alarm to a total assessment of the environmental and health effects. Elements of the emergency response system are described in such a way… more

Date: February 10, 1987

Creator: Dickerson, Marvin H.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Example of emergency response model evaluation of studies using the Mathew/Adpic models

This report summarizes model evaluation studies conducted for the MATHEW/ADPIC transport and diffusion models during the past ten years. These models support the US Department of Energy Atmospheric Release Advisory Capability, an emergency response service for atmospheric releases of nuclear material. Field studies involving tracer releases used in these studies cover a broad range of meteorology, terrain and tracer release heights, the three most important aspects of estimating air concentrati… more

Date: April 1, 1986

Creator: Dickerson, Marvin H. & Lange, Rolf

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

A review of source term and dose estimation for the TMI-2 reactor accident

The TMI-2 nuclear reactor accident, which occurred on March 28, 1979 in Harrisburg, Pennsylvania, produced environmental releases of noble gases and small quantities of radioiodine. The releases occurred over a roughly two week period with almost 90% of the noble gases being released during the first three days after the initiation of the accident. Meteorological conditions during the prolonged release period varied from strong synoptic driven flows that rapidly transported the radioactive gase… more

Date: September 1, 1990

Creator: Gudiksen, Paul H. & Dickerson, Marvin H.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Roles that numerical models can play in emergency response

Four points are presented with regard to a perspective on modeling for emergency preparedness. First, and probably foremost, modeling should be considered a tool, along with measurements and experience when used for emergency preparedness. The second point is that the potential for large errors associated with knowing the source term during an accident should not be used as a guide for determining the level of the model development and application. There are many other uses for models than esti… more

Date: March 1, 1982

Creator: Dickerson, Marvin H.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Summary of MATHEW/ADPIC model evaluation studies

This report summarizes model evaluation studies conducted for the MATHEW/ADPIC transport and diffusion models during the past ten years. These models support the US Department of Energy Atmospheric Release Advisory Capability, an emergency response service for atmospheric releases of nuclear material. Field campaigns involving tracer releases used in these studies cover a broad range of meteorology, terrain and tracer release heights, the three most important aspects of estimating air concentra… more

Date: October 1, 1985

Creator: Dickerson, Marvin H.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Preliminary comparisons between measurements and model calculations for the TMI venting of /sup 85/Kr

ARAC was on-line calculating hourly concentration values during the TMI-2 venting of /sup 85/Kr gas from June 28 to July 11, 1980. During this time hourly isopleths of normalized instantaneous concentration were calculated and transmitted to EPA in Middletown, PA. These isopleths were used to help locate the EPA and Penn State mobile air samplers and they were used for comparison to the EPA fixed 24 hr sampler measurements and the DOE helicopter measurements. This report summarizes preliminary … more

Date: August 1, 1980

Creator: Dickerson, Marvin H.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Emergency planning, response and assessment: a concept for a center of excellence

This paper discusses a general concept for a center of excellence devoted to emergency planning, response and assessment. A plan is presented to implement the concept, based on experience gained from emergency response as it relates to the nuclear and toxic chemical industries. The role of the World Laboratory in this endeavor would complement and enhance other organizations than are involved in related activities.

Date: October 1, 1986

Creator: Dickerson, Marvin H.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

ARAC: a centralized computer assisted emergency planning, response, and assessment system for atmospheric releases of toxic material

The Atmospheric Release Advisory Capability (ARAC) is an emergency planning, response, and assessment service, developed by the US Departments of Energy and Defense, and focused, thus far, on atmospheric releases of nuclear material. For the past 14 years ARAC has responded to over 150 accidents, potential accidents, and major exercises. The most notable accident responses are the COSMOS 954 reentry, the Three Mile Island (TMI-2) accident and subsequent purge of /sup 85/Kr from the containment … more

Date: October 1, 1986

Creator: Dickerson, Marvin H. & Knox, Joseph B.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

ASCOT data from the 1980 field measurement program in the Anderson Creek Valley, California. [ASCOT Program]

With the ASCOT program's initial focus being on the study of transport and dispersion of materials injected in or near nocturnal drainage flows, a series of exploratory field experiments of limited scope were conducted during July 1979 in the Anderson Creek valley of The Geysers geothermal area in northern California. The analyses of the results provided insight into the structure of the drainage flows and permitted the design of a more comprehensive series of experiments that were conducted du… more

Date: November 7, 1984

Creator: Dickerson, Marvin H. & Gudiksen, Paul H.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Application of Principal Components Analysis (PCA) for long-term assessment of operating releases from the nuclear power industry

The application of the Principal Components Analysis (PCA) methodology to the long-term assessment of operating releases from the nuclear power industry was investigated. Gaussian calculations had been previously compared with MATHEW/ADPIC calculations for a simulated 24-hr release in the Hudson River Valley and an area in the southeast. Considerable differences were noted in the comparisons, which were attributed to the more realistic simulation of the time and space varying wind fields by the… more

Date: November 1, 1978

Creator: Dickerson, Marvin H.; Walton, John J. & Tuerpe, Dieter R.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

ASCOT FY-1981 progress report

Since the DOE Atmospheric Studies in Complex Terrain (ASCOT) Program was initiated in 1978, the major emphasis of the program has been on the study of nocturnal drainage winds using The Geysers Known Geothermal Resource Area of northern California as the study site. Studies during this year were related to reducing and analyzing the data taken during a major field study in September 1980, model development and testing, and conducting the last series of field experiments in this area to determin… more

Date: November 1, 1981

Creator: Dickerson, Marvin H. & Gudiksen, Paul H.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Utilization of dose assessment models to facilitate off-site recovery operations for accidents at nuclear facilities

One of the most important uses of dose assessment models in response to accidents at nuclear facilities is to help provide guidance to emergency response managers for identifying, and mitigating, the consequences of an accident once the accident has been terminated. By combining results from assessment models with radiological measurements, a qualitative methodology can be developed to aid emergency response managers in determining the total dose received by the population and to minimize futur… more

Date: September 1, 1989

Creator: Dickerson, Marvin H. & Foster, Kevin T.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Atmospheric Release Advisory Capability (ARAC): development and plans for implementation

No Description Available.

Date: June 1, 1975

Creator: Dickerson, Marvin H. & Orphan, Richard C.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Atmospheric Release Advisory Capability (ARAC): update 1977. [Atmospheric monitoring of effluents from DOE nuclear facilities]

The Atmospheric Release Advisory Capability (ARAC) is a service to facilities requiring a means of realtime prediction of the extent of health hazards that may result from a release of radionuclides or other toxic materials. The ARAC system, sponsored by the Department of Energy (DOE), consists of a network of serviced facilities and a central facility at the University of California, Lawrence Livermore Laboratory (LLL). Since 1973, when the concept was initiated, a joint feasibility study of t… more

Date: October 1, 1977

Creator: Dickerson, Marvin H.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Atmospheric Release Advisory Capability

The Atmospheric Release Advisory Capability (ARAC) project is a Department of Energy (DOE) sponsored real-time emergency response service available for use by both federal and state agencies in case of a potential or actual atmospheric release of nuclear material. The project, initiated in 1972, is currently evolving from the research and development phase to full operation. Plans are underway to expand the existing capability to continuous operation by 1984 and to establish a National ARAC Cen… more

Date: February 1, 1983

Creator: Dickerson, Marvin H.; Gudiksen, Paul H. & Sullivan, Thomas J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Atmospheric Release Advisory Capability (ARAC)

The chief purpose of ARAC data acquisition program is to provide site officials, who are responsible for ensuring maximum health protection for the endangered site personnel and public, with estimates of the effects of atmospheric releases of hazardous material as rapidly and accurately as possible. ARAC is in the initial stages of being implemented and is therefore susceptible to changes before it reaches its final form. However the concept of ARAC is fully developed and was successfully demon… more

Date: November 19, 1975

Creator: Dickerson, Marvin H.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Atmospheric Release Advisory capability (ARAC) response to the Three Mile Island accident

This paper discusses the three general classes of support provided by the Atmospheric Release Advisory Capability (ARAC) and describes the role played by ARAC in support of DOE during the Three Mile Island accident in March and April of 1979.

Date: October 1, 1979

Creator: Dickerson, Marvin H. & Gudiksen, Paul H.

Item Type: Article

Partner: UNT Libraries Government Documents Department