Downloads

Latest versions

  • SWAP version 4.3.0 (release date May, 2026)

  • 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)

Older versions

Older versions of SWAP are no longer available as download from this website. Upon reasonable request (via swap mailbox) they can be send privately. Official older versions are:

  • 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.