Water Balance

Water balance output can be printed at basin, LSU, HRU, and HRU-lte level by entering "y" in the basin_wb, lsunit_wb, hru_wb, and hru-lte_wb lines in print.prt, respectively. Water balance output can be printed at daily, monthly, yearly, and average annual time steps. The names of the water balance output files are as follows:

  • basin_wb_day.txt

  • basin_wb_mon.txt

  • basin_wb_yr.txt

  • basin_wb_aa.txt

  • lsunit_wb_day.txt

  • lsunit_wb_mon.txt

  • lsunit_wb_yr.txt

  • lsunit_wb_aa.txt

  • hru_wb_day.txt

  • hru_wb_mon.txt

  • hru_wb_yr.txt

  • hru_wb_aa.txt

  • hru-lte_wb_day.txt

  • hru-lte_wb_mon.txt

  • hru-lte_wb_yr.txt

  • hru-lte_wb_aa.txt

Field

Description

Unit

jday

Julian day

n/a

mon

Month

n/a

day

Day of the month

n/a

yr

Year

n/a

unit

ID of the object

n/a

gis_id

Object ID in GIS

n/a

name

Name of the object or SWAT+ setup (basin outputs)

n/a

precip

Precipitation

mm

snofall

Snowfall

mm

snomlt

Snowmelt

mm

surq_gen

Generated surface runoff

mm

latq

Lateral flow

mm

wateryld

Water yield

mm

perc

Percolation

mm

et

Actual evapotranspiration

mm

ecanopy

Canopy evaporation

mm

eplant

Plant transpiration

mm

esoil

Soil evaporation

mm

surq_cont

Contributing surface runoff

mm

cn

Curve Number

n/a

sw_init

Initial soil water content

mm

sw_final

Final soil water content

mm

sw_ave

Average soil water content

mm

sw_300

Average soil water content in the top 300 mm of soil

mm

sno_init

Initial snow water content

mm

sno_final

Final snow water content

mm

snopac

Average snow water content

mm

pet

Potential Evapotranspiration

mm

qtile

Tile flow

mm

irr

Irrigation

mm

surq_runon

Surface runoff run-on

mm

latq_runon

Later flow run-on

mm

overbank

Overbank flow

mm

surq_cha

Surface runoff to channels

mm

surq_res

Surface runoff to reservoirs

mm

surq_ls

Surface runoff to Landscape Units

mm

latq_cha

Lateral flow to channels

mm

latq_res

Lateral flow to reservoirs

mm

latq_ls

Lateral flow to Landscape Units

mm

gwtranq

GWFlow module output

mm

satex

GWFlow module output

mm

satex_chan

GWFlow module output

mm

sw_change

Change in soil water content

mm

lagsurf

Surface runoff lag

mm

laglatq

Lateral flow runoff lag

mm

lagsatex

Surface runoff lag

mm

Last updated

#1315: katie.mendoza's Oct 3 ET chapter

Change request updated