Yukon River 2002 Data Analysis

Map of Yukon River drainage

Sampling site: between the Dalton Highway Bridge and the USGS Stevens Village hydrological station

Daily Discharge and Sampling Date

Monthly integrated discharge

Precipitation

Three fluorescence components by PARAFAC Analysis-revised

Excitation and emission maximum

Components	Ex max (nm)	Em max (nm)	Property
C1	240/315	432	Humic-like
C2	260/365	494	Humic-like
C3	<240/295	374	Humic-like

LMW-DOM-COM

Fluorescence components ratios

Normalized PARAFAC components-DOM

Normalized PARAFAC components-COM

Normalized PARAFAC components-LMW

Figure 6 from Guo et al.

S275-295 vs %C1, C2, C3

Hydrodynamic diameters distribution of colloids in the Yukon River upper stream in 2002.

UV1

UV2

Fluorescence 1 -

Fluorescence 2 -

size distribution (molecular weights)

UV1

UV2

Fluorescence 1 (Ex/Em = 350 nm /450 nm)

Fluorescence 2 (Ex/Em = 275 nm/ 340 nm)

Integrations of each size intervals - Size distribution of colloidal organic matter

UV1

UV2

Fluorescence 1 (Ex/Em = 350 nm /450 nm)

Fluorescence 2 (Ex/Em = 275 nm/ 340 nm)

Integrations of size intervals - size distribution of colloids in molecular weights

UV1

UV2

Fluorescence 1 (Ex/Em = 350 nm /450 nm)

Fluorescence 2 (Ex/Em = 275 nm/ 340 nm)

Total data

Sample_Name	a254	SUVA	S275-295	TOC	TN	DOC/TN	Weight	Carbon percentage	Nitrogen percentage	MCHO	%MCHO
	m-1	m-1/uM	nm-1	(uM)	(uM)		mg	%	%	(uM-C)	%
YR_<1kDa1	6.35	0.06	0.021	114.68	3.8	30.2	3.01	4.57	0.18	14.85	12.95
YR_<1kDa2	4.19	0.05	0.032	76.36	3.77	20.25	3.62	2.53	0.15	13.64	17.86
YR_<1kDa3	2.04	0.05	0.05	38.03	3.29	11.55	3.36	1.36	0.14	13.18	34.65
YR_<1kDa4	2.3	0.05	0.053	48.39	1.62	29.94	3.08	1.89	0.07	15.66	32.36
YR_<1kDa5	2.86	0.05	0.046	57.51	2.85	20.19	3.11	2.22	0.13	16.89	29.37
YR_<1kDa6	2.75	0.06	0.045	50.03	1.97	25.45	3.71	1.62	0.07	6.29	12.57
YR_DOM1	7.61	0.07	0.014	101.64	3.03	33.53	2.95	4.13	0.14	21.43	21.08
YR_DOM2	4.77	0.07	0.014	65.01	3.28	19.79	3.24	2.41	0.14	16.03	24.65
YR_DOM3	4.61	0.11	0.017	41.94	2.53	16.55	3.96	1.27	0.09	12.53	29.87
YR_DOM4	5.91	0.15	0.016	38.22	2.08	18.42	3.16	1.45	0.09	5.8	15.18
YR_DOM5	5.27	0.11	0.017	47.44	2.56	18.51	3.62	1.57	0.1	16.39	34.55
YR_DOM6	3.36	0.09	0.015	37.38	1.92	19.47	2.98	1.51	0.09	8.98	24.01
YR_COM1	39.53	0.13	0.024	311.89	7.01	44.5	1.91	19.6	0.51	105.83	33.93
YR_COM2	58.46	0.12	0.028	490.13	11.44	42.83	3.32	17.72	0.48	141.08	28.78
YR_COM3	21.76	0.11	0.025	200.24	5.63	35.57	1.67	14.39	0.47	55.48	27.71
YR_COM4	24.83	0.11	0.019	220.32	5.31	41.46	1.79	14.77	0.42	73.61	33.41
YR_COM5	16.23	0.12	0.026	138.85	4.33	32.03	1.65	10.1	0.37	55.44	39.92
YR_COM6	35.58	0.11	0.033	320.39	6.5	49.29	2.95	13.03	0.31	81.23	25.35

Sample_Name	FIX	BIX	HIX	%FIX	%BIX	%HIX	C1	C2	C3	%C1	%C2	%C3
YR_<1kDa1	1.34	0.59	7.51	0.01	0.01	0.07	5.421	15.402	11.369	0.047	0.134	0.099
YR_<1kDa2	1.3	0.49	6.75	0.02	0.01	0.09	3.912	12.088	8.324	0.034	0.105	0.073
YR_<1kDa3	1.28	0.59	5.33	0.03	0.02	0.14	1.818	5.289	3.717	0.016	0.046	0.032
YR_<1kDa4	1.31	0.59	5.58	0.03	0.01	0.12	1.734	4.999	3.566	0.015	0.044	0.031
YR_<1kDa5	1.25	0.52	7.22	0.02	0.01	0.13	2.06	5.472	4.263	0.018	0.048	0.037
YR_<1kDa6	1.34	0.58	5.58	0.03	0.01	0.11	2.135	5.725	4.414	0.019	0.05	0.038
YR_DOM1	1.37	0.61	7.58	0.01	0.01	0.07	5.353	15.205	10.979	0.047	0.133	0.096
YR_DOM2	1.32	0.56	3.69	0.02	0.01	0.06	3.997	12.736	8.304	0.035	0.111	0.072
YR_DOM3	1.31	0.63	6.48	0.03	0.02	0.15	2.586	7.11	5.365	0.023	0.062	0.047
YR_DOM4	1.3	0.56	5.04	0.03	0.01	0.13	1.979	5.927	4.173	0.017	0.052	0.036
YR_DOM5	1.26	0.58	4.81	0.03	0.01	0.1	2.683	7.211	5.505	0.023	0.063	0.048
YR_DOM6	1.34	0.59	5.82	0.04	0.02	0.16	1.993	5.181	4.126	0.017	0.045	0.036
YR_COM1	1.03	0.39	13.66	0	0	0.04	23.412	24.319	34.765	0.204	0.212	0.303
YR_COM2	1.06	0.42	15.09	0	0	0.03	35.498	35.186	49.029	0.31	0.307	0.428
YR_COM3	1.04	0.44	13.72	0.01	0	0.07	14.185	17.107	22.409	0.124	0.149	0.195
YR_COM4	1.09	0.48	14.91	0	0	0.07	16.139	17.396	25.885	0.141	0.152	0.226
YR_COM5	1.09	0.47	12.62	0.01	0	0.09	10.179	11.375	16.713	0.089	0.099	0.146
YR_COM6	1.09	0.49	16.2	0	0	0.05	24.492	24.344	36.793	0.214	0.212	0.321

Figures from literatures

DOC&CHO Concentration

DOC HMW & LMW

Variations of dissolved organic carbon in the HMW (1kDa–0.45 um) and the LMW (<1kDa) fractions

CHO MCHO&TCHO

Concentrations of carbohydrate species, including monosaccharides (MCHO) and polysaccharides (PCHO), in the <0.45 um DOM fraction.

Comparison of HMW and LMW

Comparison btw/ Fig 2 from Zou et al. and Fig 4 from Guo et al.

Fig 4 from Zou et al.

Fig 5 from Zou et al.

DOC POC DIC

Isotope Information

Isotope source difference