SWAT+ Release Notes

Water allocation users: do not update to 62.0.1. The water allocation module is undergoing a major overhaul. Its code changed in this release, but it is not supported in 62.0.1, and projects built for the earlier water allocation inputs may fail to read or give different results. Stay on your current version until a release documents the new module.

Highlights

• Recall works again with SWAT+ Editor projects. 62.0.0 read point source time series only from recall_db.rec and ignored the recall file named in file.cio. 62.0.1 reads the recall file named in file.cio, with daily, monthly, yearly and constant records, and reads recall_db.rec only when it exists.

• Point sources add flow again. exco.exc and exco_om.exc are back to their original format, and each exco object takes its flow from exco_om.exc. Point sources made in SWAT+ Editor reach the model again, so projects with point sources should be rerun.

• Plant communities with more than 12 plants no longer crash during tillage and biomixing.

• A schedule whose operations all fall on one date no longer hangs the run.

• Perennials that start the run already growing get a root depth that matches their maturity, instead of the 25.4 mm minimum.

• Basin-level nperco_lchtile calibration changes nperco_lchtile. In 62.0.0 it changed msk_x.

• gwflow: aquifer_delay is calibrated in days, calibration rows apply with the gwf_riv and gwf_sgl object types, every gwflow output follows its print switch, and the average annual storage change is divided by the number of years.

• Legacy carbon output no longer writes duplicate rows per HRU.

• Also in this release: pesticide fate fixes, rice paddy updates and new sediment budget output. See the detailed changes linked below.