This code is used to assess specific activity or activity concentration levels in the marine ecosystem of the Channel and southern North Sea resulting from chronic or accidental release.

Radionuclides processed:
H, C, I, Ru, Sb, Sr, Cs, Co, Tc, Pu, Am, Cm, Mn, Ag, Fe, Mo, Ce, Zn, Zr, Cl, Ca, Ni, Eu, Se, Np, Y, Nb, Pa, Cd, Sn, Te, Pm, U, Sa, and Tb isotopes

Scope/resolution scale:
--------------->Space: covers a 1000 x 1000 km area from the Loire estuary to Denmark, encompassing the north of the Bay of Biscay, the Channel, the southern North Sea, and the Irish Sea. The basic unit mesh for calculations is 1 km x 1 km. Results can be processed as from 30 km from the point of release.
--------------->Time: from one week after the start of release to several tens of years, with a time increment of less than one hour.
Transmer was developed in collaboration with IFREMER.