#  Begin METADATA documentation
------------------------------------------------------------------------------------------------------
#  DATASET_NAME: 	MRB4A.ptsrc.N.txt
#  DATASET_DESCRIPTION:	This data set was used as part of a nutrient, sediment, and streamflow trend 
#			assessment for the Missouri River Basin.
#  DATA_SET FORMAT:	Tab-delimited ascii file
#  DATA_SET URL:
#
#-------------------------------------------------------------------------------------------------------- 
#  REPORT TITLE: 	Nutrient and Suspended-Sediment Trends in the Missouri River Basin, 1993-2003    
#  REPORT SERIES/NUMBER (JOURNAL NAME/VOLUME): USGS Scientific Investigation Report (SIR 2006-5231)     
#  REPORT URL:		http://pubs.usgs.gov/sir/2006/5231/
#
#-------------------------------------------------------------------------------------------------------
#  NAWQA STUDY:		Major River Basin 4
#
#-------------------------------------------------------------------------------------------------------
#
#  METADATA DATE:    	January 30, 2007
#  METADATA CONTACT: 	Lori Sprague
#                    	USGS-WRD, Colorado Water Science Center 
#                    	Major River Basin study  Missouri River Basin
#                    	Denver Federal Center, Bldg. 53, MS 415,
#	 	     	Lakewood, CO 80225	
#                    	voice: 303-236-4882 x262
#                    	fax:   303-236-4912
#                    	email:  lsprague@usgs.gov
#
#  SECONDARY CONTACT:   Jennifer Flynn
#                    	USGS-WRD, Colorado Water Science Center 
#                    	Major River Basin study  Missouri River Basin
#                    	Denver Federal Center, Bldg. 53, MS 415,
#	 	     	Lakewood, CO 80225	
#                    	voice: 303-236-4882 x300
#                    	fax:   303-236-4912
#                    	email:  jlflynn@usgs.gov
#
# ------------------------------------------------------------------------------------------------------
#  METADATA Data Description:  
#
#  ABSTRACT:	This data set contains nitrogen from point sources discharged to streams and rivers 
#	in the Missouri River Basin.  Additional modifications were made to the data 
#	in the original retrieval; these modifications are detailed in Sprague and others, 2006 
#	(SIR 2006-5231). The data were used in a report documenting trends in the Missouri River Basin 
#	as part of the U.S. Geological Survey, National Water-Quality Assessment Program.
#
#
#  SUPPLEMENTAL INFORMATION:
#   	PROCEDURES USED:
#	PROCESS STEP:
#
#	Original data for point sources of nitrogen were obtained from 
#	http://www.epa.gov/enviro/html/pcs/.  Data were processed as described in Appendix 1 of 
#	Sprague and others, 2006 (SIR 2006-5231).  Total N from all point sources within each site 
#	basin were aggregated and summed to provide an annual time series of point source N for 
#	each site.
#
#
#  RELATED SPATIAL AND TABULAR DATA SETS:
#
#	All files listed below were used in the analysis for the report Sprague and others, 2006 
#	 (SIR 2006-5231).  These files	are all being documented and archived for this report.
#
#	Trends from 1993 to 2003:		
#		Streamflow: MRB4A.Q.txt
#		Water quality: MRB4A.TN.txt, MRB4A.NOX.txt, MRB4A.NH3.txt, MRB4A.TP.txt, 
#		MRB4A.OP.txt, MRB4A.SS.txt 
#	Base-flow nitrate loads:
#		MRB4A.baseflow.NOX.txt, MRB4A.baseflow.Q.txt, MRB4A.baseflow.NOX.loads.txt
#	Trends from 1985 to 2003:
#		Streamflow: MRB4A.Q.85.03.txt
#		Water quality: MRB4A.TN.85.03.txt, MRB4A.NOX.85.03.txt, MRB4A.TP.85.03.txt, 
#		MRB4A.OP.85.03.txt, MRB4A.SS.85.03.txt  		
#	Suspended-sediment yields:
#		MRB4A.sussed.loads.calibration.txt, MRB4A.Q.sussed.loads.txt, MRB4A.sussed.loads.txt
#	Nutrient sources and landscape characteristics:
#		MRB4A.explanatory.10.txt, MRB4A.explanatory.100.txt, MRB4A.ptsrc.N.txt,
#		MRB4A.spsed.txt, MRB4A.drainagebasins.txt
#
# ------------------------------------------------------------------------------------------------------
#  METADATA Basic documentation of dataset elements:
#
#     DATA FIELD LABELS:
#
#	STAID
#	1989
#	1990
#	1991
#	1992
#	1993
#	1994
#	1995
#	1996
#	1997
#	1998
#	1999
#	2000
#	2001
#	2002
#	2003
#
#     DATA TYPES: Note:  The row in the data file that follows the row of variable names describes the 
#                 width of the field and the data type. 
#			
#			Code:		Variable Type		Variable Length
#                 ----------------------------------------------------------------			
#			S or s 	text variable		numeric value preceding code 
#                       D or d	date variable		numeric value preceding code
#			N or n	numeric variable	numeric value preceding code
#									 
#                 For example: 15s indicates a 0- to 15-character text variable whereas
#                 9N indicates a 0- to 9-digit numeric variable.
#
#--------------------------------------------------------------------------------------------------------
#  METADATA Detailed documentation of dataset elements:
#
#	DATA FIELD LABEL:		STAID
#       Data Field Description:		USGS Station Number
#	Data Field Length/Type:		15s
#       Data Source: 			USGS National Water Information System (NWIS)
#       Retrieval Date:  		June 2005
#
#	DATA FIELD LABEL:		1989
#	Data Field Description:		Point source N for 1989
#	Data Field Length/Type:		12n
#	Data Source:			http://www.epa.gov/enviro/html/pcs/
#	Retrieval Date:			June 2005
#
#	DATA FIELD LABEL:		1990
#	Data Field Description:		Point source N for 1990
#	Data Field Length/Type:		12n
#	Data Source:			http://www.epa.gov/enviro/html/pcs/
#	Retrieval Date:			June 2005
#
#	DATA FIELD LABEL:		1991
#	Data Field Description:		Point source N for 1991
#	Data Field Length/Type:		12n
#	Data Source:			http://www.epa.gov/enviro/html/pcs/
#	Retrieval Date:			June 2005
#
#	DATA FIELD LABEL:		1992
#	Data Field Description:		Point source N for 1992
#	Data Field Length/Type:		12n
#	Data Source:			http://www.epa.gov/enviro/html/pcs/
#	Retrieval Date:			June 2005
#
#	DATA FIELD LABEL:		1993
#	Data Field Description:		Point source N for 1993
#	Data Field Length/Type:		12n
#	Data Source:			http://www.epa.gov/enviro/html/pcs/
#	Retrieval Date:			June 2005
#
#	DATA FIELD LABEL:		1994
#	Data Field Description:		Point source N for 1994
#	Data Field Length/Type:		12n
#	Data Source:			http://www.epa.gov/enviro/html/pcs/
#	Retrieval Date:			June 2005
#
#	DATA FIELD LABEL:		1995
#	Data Field Description:		Point source N for 1995
#	Data Field Length/Type:		12n
#	Data Source:			http://www.epa.gov/enviro/html/pcs/
#	Retrieval Date:			June 2005
#
#	DATA FIELD LABEL:		1996
#	Data Field Description:		Point source N for 1996
#	Data Field Length/Type:		12n
#	Data Source:			http://www.epa.gov/enviro/html/pcs/
#	Retrieval Date:			June 2005
#
#	DATA FIELD LABEL:		1997
#	Data Field Description:		Point source N for 1997
#	Data Field Length/Type:		12n
#	Data Source:			http://www.epa.gov/enviro/html/pcs/
#	Retrieval Date:			June 2005
#
#	DATA FIELD LABEL:		1998
#	Data Field Description:		Point source N for 1998
#	Data Field Length/Type:		12n
#	Data Source:			http://www.epa.gov/enviro/html/pcs/
#	Retrieval Date:			June 2005
#
#	DATA FIELD LABEL:		1999
#	Data Field Description:		Point source N for 1999
#	Data Field Length/Type:		12n
#	Data Source:			http://www.epa.gov/enviro/html/pcs/
#	Retrieval Date:			June 2005
#
#	DATA FIELD LABEL:		2000
#	Data Field Description:		Point source N for 2000
#	Data Field Length/Type:		12n
#	Data Source:			http://www.epa.gov/enviro/html/pcs/
#	Retrieval Date:			June 2005
#
#	DATA FIELD LABEL:		2001
#	Data Field Description:		Point source N for 2001
#	Data Field Length/Type:		12n
#	Data Source:			http://www.epa.gov/enviro/html/pcs/
#	Retrieval Date:			June 2005
#
#	DATA FIELD LABEL:		2002
#	Data Field Description:		Point source N for 2002
#	Data Field Length/Type:		12n
#	Data Source:			http://www.epa.gov/enviro/html/pcs/
#	Retrieval Date:			June 2005
#
#	DATA FIELD LABEL:		2003
#	Data Field Description:		Point source N for 2003
#	Data Field Length/Type:		12n
#	Data Source:			http://www.epa.gov/enviro/html/pcs/
#	Retrieval Date:			June 2005
#
#
#  End METADATA documentation
#
#  BEGIN DATA: MRB4A.EXPLANATORY.100.txt
# ------------------------------------------------------------------------------------------------------
STAID	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003
15s	12n	12n	12n	12n	12n	12n	12n	12n	12n	12n	12n	12n	12n	12n	12n
06088500	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
06089000	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
06115200	32160.879	6047.32	27006.193	4379.688	4451.832	98901.018	211161.914	774789.173	1032206.223	1001591.83	1013617.505	863832.625	551516.671	449886.276	472877.118
06130500	0	0	0	0	0	2422.92	9567.68	12875.912	12497.307	10183.976	11346.568	6499.766	6014.908	3964.084	2112.036
06154410	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
06178000	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
06192500	0	0	0	0	0	21301.201	25551.339	30171.507	31870.281	31725.573	28721.827	27187.125	26044.646	28875.4	39364.115
06274300	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
06329500	53234.429	44424.331	65967.218	118827.61	117034.775	164398.23	289531.747	1199101.288	1520397.705	1847297.548	1755664.877	1804082.821	1879499.063	1970947.46	2151737.949
06338490	85395.308	50471.651	92973.411	123207.298	121486.607	348804.168	678962.045	2226955.044	2777248.982	3045459.261	2977106.319	2773427.939	2506563.635	2482283.106	2691722.89
06341410	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
06341800	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
06436180	0	0	0	0	0	0	36.82	31.36	1407.742	185.04	406.401	285.932	387.104	115.515	103.73
06441500	0	0	0	0	0	0	0	0	0	0	52.56	0	0	1418.244	0
06452000	0	0	0	0	0	0	0	0	0	0	2975.956	4185.276	3254.068	2617.291	2699.139
06461500	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
06463500	0	0	0	0	348.972	2300.029	2830.93	4521.078	3385.658	965.951	957.599	498.52	1002.618	1215.447	962.44
06468250	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
06610000	231580.186	149560.779	348356.734	433268.091	430334.645	655032.805	896177.547	2529383.111	3086142.269	3263835.763	3567915.806	3254205.305	3202150.447	3190617.158	2907857.334
06713500	896.44	702.844	1680.782	517.302	432.16	308.644	1705.089	1449.281	741.096	0	0	0	0	0	0
06714000	1538181.484	1488127.37	2073687.573	1415222.649	13459.742	7711.167	8103.292	11896.742	3407.354	144.54	7.884	7.906	0	0	0
06720500	4551899.953	6963088.936	4846410.519	3607539.182	155247.346	27102.419	17596.291	37269.245	13486.318	27583.195	8619.164	7080.482	14893.768	24470.842	35144.9
06752260	0	717.181	1566.077	7134.307	6118.567	6906.091	7242.56	6739.608	7370.08	5311.48	0	0	0	0	0
06752280	0	717.181	1566.077	99291.502	87761.77	15636.891	7242.56	6739.608	7370.08	5311.48	0	0	0	0	0
06753990	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
06754000	5306041.948	7783608.624	5711956.535	4428445.797	769895.37	379182.794	331335.473	211401.479	212330.489	221166.635	225411.154	130023.986	71489.386	64276.824	38188.973
06758500	5321079.948	7912263.823	5803461.729	4500424.819	792653.555	395876.142	340917.069	220826.673	218751.569	228726.515	255203.313	141238.226	83694.986	82439.224	47065.773
06768000	5517164.657	8149032.607	5888717.014	4574020.423	887184.176	466513.568	397352.218	288318.413	250764.987	290331.384	419507.069	243951.197	185358.53	279759.842	158192.523
06775900	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
06800000	0	0	0	0	0	0	0	0	0	0	43.774	1422.568	5272.57	4043.624	3287.597
06805500	5881923.087	8660810.548	6228010.292	4836344.668	1097120.808	707994.174	1985969.375	5361314.889	5944058.939	4649605.372	4557777.973	3496779.048	2841249.98	10106019	1316790.443
06817700	1539.789	12005.151	10692.642	9719.789	9612.055	15512.208	14299.236	23309.369	10416.589	6906.311	8765.1	6186.757	7491.588	3702.195	5799.773
06818000	6195635.06	8840367.329	6596101.96	5285929.613	1549213.808	1418014.734	2967055.043	7996922.931	9156385.236	8014015.268	8183037.187	6812554.556	6106442.593	16100974.72	8698481.898
06821190	35952.498	34818.937	43228.894	47598.917	47297.573	46450.249	32718.23	21353.666	9465.763	7924.002	5618.129	6240.04	4071.502	2854.294	3664.701
06889000	270624.384	427751.422	195070.817	33966.925	110125.671	185089.214	240233.789	233394.023	243495.537	304044.514	276051.852	238138.716	150910.871	80719.863	84968.442
06902000	5684.948	6356.256	5005.696	6870.589	8527.568	11541.884	11510.254	26485.676	17602.832	18656.306	16138.414	15195.098	10651.869	4352.616	9718.28
06905500	1404.812	1664.984	4156.347	1686.373	1793.172	3982.004	5141.301	3340.868	946.372	1801.348	1627.367	2887.2	4024.052	1373.304	727.386
06921070	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
06926510	0	0	0	0	0	0	0	13196.721	45379.715	10764.083	1512.652	9933.986	2555.599	1750.093	132.139
06930800	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
06934500	7286401.004	10208530.97	7554941.423	6082861.343	2339891.725	2741897.35	4795747.641	9709248.665	9581851.546	8456996.521	8578829.368	7150023.662	6337666.949	16220033.92	8849027.533
