Channel

SWAT+ prints two channel output files per time step, one for general channel output and one for channel morphology output. The printing of channel output is controlled by entering "y" or "n" in the channel_sd line in print.prt. In addition, a basin average of all channels can be printed by entering "y" in the basin_sd_cha line in print.prt. Channel output can be printed at daily, monthly, yearly, and average annual time steps. The names of the channel output files are as follows:

• channel_sd_day.txt

• channel_sd_mon.txt

• channel_sd_yr.txt

• channel_sd_aa.txt

• channel_sdmorph_day.txt

• channel_sdmorph_mon.txt

• channel_sdmorph_yr.txt

• channel_sdmorph_aa.txt

• basin_sd_cha_day.txt

• basin_sd_cha_mon.txt

• basin_sd_cha_yr.txt

• basin_sd_cha_aa.txt

• basin_sd_chamorph_day.txt

• basin_sd_chamorph_mon.txt

• basin_sd_chamorph_yr.txt

• basin_sd_chamorph_aa.txt

General

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
area	Area of the channel	ha
precip	Precipitation on the channel surface	ha-m
evap	Evaporation from the channel surface	ha-m
seep	Seepage out of the channel bottom	ha-m
flo_stor	Flow storage in the channel	m3
sed_stor	Sediment storage in the channel	tons
orgn_stor	Organic nitrogen storage in the channel	kg
sedp_stor	Sediment phosphorus storage in the channel	kg
no3_stor	Nitrate nitrogen storage in the channel	kg
solp_stor	Soluble phosphorus storage in the channel	kg
chla_stor	Chlorophyll-a storage in the channel	kg
nh3_stor	Ammonia nitrogen storage in the channel	kg
no2_stor	Nitrite nitrogen storage in the channel	kg
cbod_stor	Carbonaceous Biochemical Oxygen Demand storage in the channel	kg
dox_stor	Dissolved oxygen storage in the channel	kg
san_stor	Sand storage in the channel	tons
sil_stor	Silt storage in the channel	tons
cla_stor	Clay storage in the channel	tons
sag_stor	Small aggregate storage in the channel	tons
lag_stor	Large aggregate storage in the channel	tons
grv_stor	Gravel storage in the channel	tons
null
flo_in	Flow into the channel	m3
sed_in	Sediment entering the channel	tons
orgn_in	Organic nitrogen entering the channel	kg
sedp_in	Sediment phosphorus entering the channel	kg
no3_in	Nitrate nitrogen entering the channel	kg
solp_in	Soluble phosphorus entering the channel	kg
chla_in	Chlorophyll-a entering the channel	kg
nh3_in	Ammonia nitrogen entering the channel	kg
no2_in	Nitrite nitrogen entering the channel	kg
cbod_in	Carbonaceous Biochemical Oxygen Demand entering the channel	kg
dox_in	Dissolved oxygen entering the channel	kg
san_in	Sand entering the channel	tons
sil_in	Silt entering the channel	tons
cla_in	Clay entering the channel	tons
sag_in	Small aggregates entering the channel	tons
lag_in	Large aggregates entering the channel	tons
grv_in	Gravel entering the channel	tons
null
flo_out	Flow out of the channel	m3
sed_out	Sediment leaving the channel	tons
orgn_out	Organic nitrogen leaving the channel	kg
sedp_out	Sediment phosphorus leaving the channel	kg
no3_out	Nitrate nitrogen leaving the channel	kg
solp_out	Soluble phosphorus leaving the channel	kg
chla_out	Chlorophyll-a leaving the channel	kg
nh3_out	Ammonia nitrogen leaving the channel	kg
no2_out	Nitrite nitrogen leaving the channel	kg
cbod_out	Carbonaceous Biochemical Oxygen Demand leaving the channel	kg
dox_out	Dissolved oxygen leaving the channel	kg
san_out	Sand leaving the channel	tons
sil_out	Silt leaving the channel	tons
cla_out	Clay leaving the channel	tons
sag_out	Small aggregates leaving the channel	tons
lag_out	Large aggregates leaving the channel	tons
grv_out	Gravel leaving the channel	tons
null

Morphology

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
flo_in	Channel inflow	m3/s
geo_bf		m3/s
flo_out	Channel outflow	m3/s
peakr	Peak rate	m3/s
sed_in	Sediment inflow	tons
sed_out	Sediment outflow	tons
washld	Washload	tons
bedld	Bedload	tons
dep	Deposition	tons
deg_btm	Channel bottom degradation sediment	tons
deg_bank	Channel bank degradation sediment	tons
hc_sed	Headcut sediment	tons
width	Channel width	m
depth	Channel depth	m
slope	Channel slope	m/m
deg_btm		m
deg_bank		m
hc_len	Headcut length	m
flo_in_mm	Channel inflow	mm
aqu_in_mm		mm
flo_out_mm	Channel outflow	mm