Downloads
Latest major release
- SWAP version 4.3.0 (release date May, 2026)
Latest available development branch
- SWAP version 4.3.1 (release date June, 2026)
Older versions
SWAP version 4.2.0 (release date July, 2022; available upon request via swap mailbox)
SWAP version 4.0.1 (release date June, 2017; available upon request via swap mailbox)
Upon reasonable request (via swap mailbox) the following old versions can be send privately.
- SWAP 3.2.36, SWAP 3.2.26, SWAP 3.2.16, SWAP 3.2.14, SWAP 3.2.11, SWAP 3.0.3a, SWAP 3.0.3
- SWAP 209d, SWAP 207d
TTutil
The model SWAP uses the Fortran library TTUTIL for input from files. The Fortran library TTUTIL is a collection of subprograms dealing with often returning problems like input from file, output to file, character string handling, string decoding, file name and unit number handling, date/time handling and more. The TTUTIL library is maintained by EcoCurves (mailto: kees.rappoldt@ecocurves.nl).
Reference
van Kraalingen, D.W.G. & C. Rappoldt. 2000. Reference manual of the FORTRAN utility library v. 4. Report 5. Plant Research International, Wageningen, The Netherlands.
Download
The TTutil source is included in the latest download of SWAP.