The Top Ten Radionuclides
Effect of Fine Resolution Grid on Dose
Edit and run cust_dose.bat
The finer grid results show a factor of 5 to 10 increase in dose (both air and ground) close to the source. More distant doses are about the same. Note the square region of no deposition dose resulting from the half-degree resolution of the meteorological model's precipitation field.
Increase Deposition Velocity 0.1 to 1.0 cm/s
Increased deposition has the greatest impact near the source because the bulk of the radioactive material has not spread out horizontally and is close to the ground.