Qual2K for multiple tributaries

[Marcelo]

Hello group. Does anyone have a Qual2K sample file for multiple tributaries? Apparently I am not entering the topology correctly. The macro stops at:

        MsgBox "last reach should be a mainstem reach!", vbExclamation, _
            "QUAL2K Error: Reach " & topo(curElemID).RchID  'hua01

Appreciate your help,

Marcelo

[Kyle Flynn]

Hi Marcelo -

 

If you still haven't figured this out please send me your .q2k input file at kyle....@tufts.edu.

 

Thanks,

 

Kyle

[Kris Baker]

Hi Marcelo- Did you ever receive a response to this? I am having the same issue. There are no examples available online. Thanks, Kris

[SWSFox]

Hi Kris,

 

I agree, the documentation for this is completely absent. Here is an example of the system that worked for me. Start from the upstream reach of your mainstem to create the reaches. When you reach a confluence ("junction"), the next reach will be your tributary headwater reach (#4 in the example below). The locations are your river mileage (in km). The 0 in the "Location downstream" column seems to signify to the code that the next reach will be on the mainstem (or, a level-up tributary for more complex systems). The headwaters than need to be specified in the Headwater tab -- enter the reach numbers there in the order of reach numbers (in the example, #1 and #4). Verify all numbers if you're still getting errors, I wasted a lot of time at the beginning because my headwater reach number was mistyped in the Headwater tab.

 

I had problems executing the code when I had more than one element specified for the "junction" reach (#7 in the example). I had also issues for reaches with dams, those required only one element in my case also.

 

Hope this works,

Alena

 

 

Example below: headwater reaches are in bold, tributary reaches are highligted in orange, the junction reach in green.

Stream	Reach number	Location upstream	Location downstream
Mainstem	1	50	40
Mainstem	2	40	30
Mainstem	3	30	25
Tributary 1	4	35	20
Tributary 1	5	20	5
Tributary 1	6	5	0
Mainstem		7		25		15
Mainstem	8	15	0

[SWSFox]

Example reposted, didn't notice the formatting got messed up.

 

Stream	Reach number	Location upstream	Location downstream
Mainstem	1	50	40
Mainstem	2	40	30
Mainstem	3	30	25

Tributary 1	4	15	10
Tributary 1	5	10	5

[Marianni Nogare]

Hello!

I created my reaches exactly like this last example, but it keeps warning me: "upstream location should equal downstream of previous reach". 

I have tributaries and they have their own upstream location (different from the main course), but I don't how to tell the model that. 

Any ideas on how to fix that? 

Thanks!

[SWSFox]

Hi, can you post a table with your reach data so I can see what exactly you have there?

[Marianni Nogare]

The warning appears for reach nº 46, the fourth section of my mainstem. 

	Reach	Headwater	Location
Reach	Number	Reach	Upstream	Downstream
Label			(km)	(km)
Mainstem headwater	1	Yes	184.07	183.97
Emp 175278	2		183.97	177.97
	3		177.97	177.77
	4		177.77	171.47
	5		171.47	167.07
	6		167.07	161.07
	7		161.07	156.07
	8		156.07	151.07
	9		151.07	140.07
	10		140.07	134.07
	11		134.07	125.14
APU-AP-08	12	Yes	50.87	50.77
	13		50.77	45.87
	14		45.87	40.87
	15		40.87	36.06
	16		36.06	30.87
	17		30.87	12
	18		12	5.87
	19		5.87	3.87
	20		3.87	0
APU-07	21		125.14	125.04
	22		125.04	115.14
	23		115.14	107.14
	24		107.14	103.14
	25		103.14	95.14
	26		95.14	89.14
	27		89.14	79.14
APU-AP-06	28	Yes	54.23	54.13
	29		54.13	50.23
	30		50.23	40.23
	31		40.23	29.23
	32		29.23	19.23
	33		19.23	9.23
	34		9.23	0
APU-AP-05	35		79.14	79.04
	36		79.04	77.14
	37		77.14	72.28
APU-AP-04	38	Yes	95.01	94.91
	39		94.91	84.01
	40		84.01	75.01
	41		75.01	63.01
	42		63.01	54.01
	43		54.01	36.01
	44		36.01	31.01
	45		31.01	14.01
APU-AP-03	46		72.28	72.18
	47		72.18	67.28
	48		67.28	58.17
	49		58.17	53.17
	50		53.17	45.17
	51		45.17	34.17
	52		34.17	22.16
	53		22.16	17.06
APU-AP-02a	54	Yes	75.55	75.45
	55		75.45	65.55
	56		65.55	56.77
APU-AP-02	57		56.77	56.67
	58		56.67	46.77
	59		46.77	30.77
	60		30.77	18.77
	61		18.77	6.77
	62		6.77	0
APU-AP-01	63		17.06	16.96
	64		16.96	9.06
	65		9.06	0

[SWSFox]

You need another reach before reach 45. The last tributary does not go to 0 river km. you need one or more reaches from 14.01 to 0. The 0 then signifies to the program that the following reach is back to mainstem (or a level up tributary).

[Zhuo Chen]

Hi SWSFOx,

I had the same problem, when trying to enter a tributary, as following. I thought I did it correctly, but it keeps telling me that upstream location not matching the previous downstream location. 

Reach	Headwater	Reach	Location
Number	Reach	length	Upstream	Downstream
		(km)	(km)	(km)
1	Yes	5.00	50.000	45.000
2		4.00	45.000	41.000
3		1.00	41.000	40.000
4		2.50	10.000	7.500
5		2.50	7.500	5.000
6		2.50	5.000	2.500
7		2.50	2.500	0.000
8		5.00	40.000	35.000
9		5.00	35.000	30.000
10		5.00	30.000	25.000
11		5.00	25.000	20.000
12		5.00	20.000	15.000
13		5.00	15.000	10.000
14		5.00	10.000	5.000
15		5.00	5.000	0.000

[Hoàng Bùi Huy]

i think u did not add " yes" in the new tributary at reach 4

4

yes

2.50

10.000

7.500

[Zhuo Chen]

HI Hoàng Bùi Huy,

Thanks a lot for helping out!

But this still doesn't solve the issue. It gave me the same error message once I hit "run", and automatically remove the "yes" at reach 4. 

[Hoàng Bùi Huy]

could u send me your q2k file?

[Hoàng Bùi Huy]

do u add 1 more headwater for the reach 4 in the headwater worksheet?

[DUYEN NGUYEN CHAU MY]

I have the same situation. I make sure that i entered "yes" in the second tributary. Can you help me?