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Table 2

Results of WEANN, WANN, and EANN models for both West Nishnabotna River and Trinity River watersheds

Watersheds	Time Scale	Model	Inputs	Hormone	No. hidden neuron	Epoch	DC		RMSE (Normalized)		RMSE (m³/s)		DC peak
Watersheds	Time Scale	Model	Inputs	Hormone	No. hidden neuron	Epoch	Train.	Valid.	Train.	Valid.	Train.	Valid.	Valid.
West Nishnabotna River	Daily	WEANN	**I_a(t),I_d₁(t),Q_a(t),Q_d₁(t),Q_d₅(t)**	8	7	20	0.808	0.815	0.016	0.016	9.629	10.559	0.791
		EANN	Q(t),Q(t− 1),Q(t− 2),Q(t− 3),I(t)	10	8	30	0.694	0.662	0.022	0.023	13.390	15.852	0.667
		WANN	I_a(t),I_d₁(t),Q_a(t),Q_d₁(t),Q_d₅(t)	0	10	40	0.551	0.533	0.029	0.030	21.031	21.347	0.498
	Monthly	WEANN	**I_a(t),I_d₃(t),Q_a(t),Q_d₄(t)**	5	6	10	0.914	0.885	0.011	0.013	82.821	102.842	0.891
		EANN	Q(t),Q(t− 12),I(t)	6	7	20	0.665	0.655	0.025	0.027	135.545	147.771	0.65
		WANN	I_a(t),I_d₃(t),Q_a(t),Q_d₄(t)	0	8	10	0.775	0.754	0.017	0.021	94.629	116.890	0.756
Trinity River	Daily	WEANN	**I_a(t),I_d₄(t),Q_a(t),Q_d₂(t),Q_d₅(t)**	6	5	10	0.954	0.930	0.009	0.010	24.215	27.937	0.912
		EANN	Q(t),Q(t− 1),Q(t− 2),I(t)	8	5	10	0.900	0.87	0.010	0.011	28.471	31.305	0.875
		WANN	I_a(t),I_d₄(t),Q_a(t),Q_d₂(t),Q_d₅(t)	0	6	30	0.781	0.772	0.016	0.017	45.681	48.786	0.76
	Monthly	WEANN	**I_a(t),I_d₄(t),Q_a(t),Q_d₃(t)**	5	4	10	0.926	0.892	0.011	0.012	334.911	344.589	0.901
		EANN	Q(t),Q(t− 12),I(t)	6	5	20	0.792	0.774	0.015	0.017	424.395	464.985	0.77
		WANN	I_a(t),I_d₄(t),Q_a(t),Q_d₃(t)	0	3	10	0.882	0.876	0.012	0.014	345.251	398.113	0.85

Watersheds	Time Scale	Model	Inputs	Hormone	No. hidden neuron	Epoch	DC		RMSE (Normalized)		RMSE (m³/s)		DC peak
Watersheds	Time Scale	Model	Inputs	Hormone	No. hidden neuron	Epoch	Train.	Valid.	Train.	Valid.	Train.	Valid.	Valid.
West Nishnabotna River	Daily	WEANN	**I_a(t),I_d₁(t),Q_a(t),Q_d₁(t),Q_d₅(t)**	8	7	20	0.808	0.815	0.016	0.016	9.629	10.559	0.791
		EANN	Q(t),Q(t− 1),Q(t− 2),Q(t− 3),I(t)	10	8	30	0.694	0.662	0.022	0.023	13.390	15.852	0.667
		WANN	I_a(t),I_d₁(t),Q_a(t),Q_d₁(t),Q_d₅(t)	0	10	40	0.551	0.533	0.029	0.030	21.031	21.347	0.498
	Monthly	WEANN	**I_a(t),I_d₃(t),Q_a(t),Q_d₄(t)**	5	6	10	0.914	0.885	0.011	0.013	82.821	102.842	0.891
		EANN	Q(t),Q(t− 12),I(t)	6	7	20	0.665	0.655	0.025	0.027	135.545	147.771	0.65
		WANN	I_a(t),I_d₃(t),Q_a(t),Q_d₄(t)	0	8	10	0.775	0.754	0.017	0.021	94.629	116.890	0.756
Trinity River	Daily	WEANN	**I_a(t),I_d₄(t),Q_a(t),Q_d₂(t),Q_d₅(t)**	6	5	10	0.954	0.930	0.009	0.010	24.215	27.937	0.912
		EANN	Q(t),Q(t− 1),Q(t− 2),I(t)	8	5	10	0.900	0.87	0.010	0.011	28.471	31.305	0.875
		WANN	I_a(t),I_d₄(t),Q_a(t),Q_d₂(t),Q_d₅(t)	0	6	30	0.781	0.772	0.016	0.017	45.681	48.786	0.76
	Monthly	WEANN	**I_a(t),I_d₄(t),Q_a(t),Q_d₃(t)**	5	4	10	0.926	0.892	0.011	0.012	334.911	344.589	0.901
		EANN	Q(t),Q(t− 12),I(t)	6	5	20	0.792	0.774	0.015	0.017	424.395	464.985	0.77
		WANN	I_a(t),I_d₄(t),Q_a(t),Q_d₃(t)	0	3	10	0.882	0.876	0.012	0.014	345.251	398.113	0.85