water_allocation.wro

This file contains water allocation tables.

The structure of the water allocation file is different than that of most other SWAT+ input files. As usual, the first line is reserved for a title. The second line in the file specifies the total number of water allocation tables included in the file.

Each water allocation table has three parts, which all have their own headers. First, the name of the water allocation table, the rule type, the number of source and demand objects, and whether or not one of the source objects is a channel are specified.

Field	Description	Type
name	Name of the water allocation table	string
rule_typ	Rule type to allocate water	string
src_obs	Number of source objects	integer
dmd_obs	Number of demand objects	integer
cha_ob	Channel as source object	string

Next, the source objects and their monthly limits are defined. Source objects can be channels, reservoirs, aquifers, or an unlimited source. There needs to be one line per source object.

Field	Description	Type
num	Source object number	integer
ob_typ	Object type of the source object	string
ob_num	ID of the source object	integer
limit_mon	Monthly limits	real

Finally, the demand objects are defined. Demand can be irrigation demand from an HRU, municipal demand, or demand to transfer to another object.There needs to be one line per demand object.

Field	Description	Type
num	Demand object number	integer
ob_typ	Object type of the demand object	string
ob_num	ID of the demand object	integer
withdr	Withdrawal type	string
amount	Withdrawal amount	real
right	Water right	string
treat_typ	Currently not functional	string
treatment	Currently not functional	string
rcv_ob	Object type of the receiving object	string
rcv_num	ID of the receiving object	integer
rcv_dtl	Currently not used	string
srcs	Number of source objects available for the demand object	integer
src	Source object ID	integer
frac	Fraction of demand to be met by source object	real
comp	Compensation from source object	string