Contribution of 3D coupled hydrodynamic-ecological modeling to assess the representativeness of a sampling protocol for lake water quality assessment | Knowledge and Management of Aquatic Ecosystems

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Table 1

Yearly root mean square error (RMSE) and relative root mean square error (RRMSE) based on depth average data between the surface and 30 m depth. Minimal values of the nine pixels around the cell corresponding to the monitoring station were considered. RMSE is expressed in the unit of the variable (Chla (μg l⁻¹), NH₄ (μg NH₄ l⁻¹), NO₃ (mg NO₃ l⁻¹), TP (μgP l⁻¹) and SDD (m)), and RRMSE is expressed in % regardless of the variable.

	2009				2010

	SHL2		GE3		SHL2		GE3

	RMSE	RRMSE	RMSE	RRMSE	RMSE	RRMSE	RMSE	RRMSE
Chla	2.48	33	5.50	33	1.95	30	2.19	30
NH₄	15	70	15	97	14	32	9	22
NO₃	0.19	25	0.35	110	0.35	43	0.50	238
TP	3	18	7	79	2	15	2	16
SDD	2.9	28	2.9	43	2.5	24	1.7	21

	2011				2012

	SHL2		GE3		SHL2		GE3

	RMSE	RRMSE	RMSE	RRMSE	RMSE	RRMSE	RMSE	RRMSE

Chla	1.59	20	3.57	46	2.29	38	2.59	86s
NH₄	7	22	12	24	9	16	6	16
NO₃	0.36	30	0.51	184	0.15	17	0.48	150
TP	3	20	4	28	3	17	5	48
SDD	2.8	26	2.7	38	3.1	25	3.1	69

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