RAGTIME: a FORTRAN IV implementation of a time-dependent model for radionuclides in agricultural systems. First progress report
RAGTIME (Radionuclides in AGricultural systems: a TIME-dependent model) computes radionuclide concentrations in food crops, beef, and milk which are contaminated by radionuclide deposition. The model assumes a known rate of deposition of radioactivity (microcuries per square meter per day, ..mu..Ci m/sup -2/ day/sup -1/) at a given environmental location and uses interception fractions S/sub 1/, S/sub 2/, S/sub 3/, and S/sub 4/ to calculate radioactivity input rates to the model compartments representing above-ground food, the soil surface below the food crop, pasture grass, and pasture soil or root mat, respectively, at that location. RAGTIME is basically an adaptation of the previously developed TERMOD code/sup 3/ to consider both seasonality of agricultural processes and the dynamics of daughter ingrowth of raidonuclides during food-chain transport. Because the development of RAGTIME is still in progress, some parameters and concepts believed to be inadequate for the intended use of this code have been carried over from TERMOD until appropriate revisions can be made.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5152738
- Report Number(s):
- NUREG/CR-1196; ORNL/NUREG/TM-371; ON: TI86000164
- Country of Publication:
- United States
- Language:
- English
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29 ENERGY PLANNING
POLICY AND ECONOMY
COMPUTER CODES
R CODES
FOOD CHAINS
RADIONUCLIDE MIGRATION
MATHEMATICAL MODELS
CONTAMINATION
CROPS
GRASS
MEAT
MILK
BIOLOGICAL MATERIALS
BODY FLUIDS
ENVIRONMENTAL TRANSPORT
FOOD
MASS TRANSFER
MATERIALS
PLANTS
510302* - Environment
Terrestrial- Radioactive Materials Monitoring & Transport- Terrestrial Ecosystems & Food Chains- (-1987)
290300 - Energy Planning & Policy- Environment
Health
& Safety