#  Begin METADATA documentation
------------------------------------------------------------------------------------------------------
#  DATASET_NAME:	Skendall.02.txt	
#  DATASET_DESCRIPTION:	This data set was used as part of a trend assesment of the temporal change of 
#			insecticide (diazinon and chlorpyrifos) concentration in surface-water after phaseout.
#  DATA_SET FORMAT:	Tab-delimited ascii file	
#  DATA_SET URL:
#
#-------------------------------------------------------------------------------------------------------- 
#  REPORT TITLE:		Temporal Changes in Surface-Water Insecticide Concentrations after the Phaseout 
#			of Diazinon and Clorpyrifos 	 
#  REPORT SERIES/NUMBER (JOURNAL NAME/VOLUME): Environmental Science and Technology/Vol. 41, No. 12, 2007 
#  REPORT URL:		http://pubs.acs.org/doi/abs/10.1021/es070301%2B 
#
#-------------------------------------------------------------------------------------------------------
#  NAWQA STUDY:		Temporal Diazinon trends in MRB1 and MRB2
#
#-------------------------------------------------------------------------------------------------------
#
#  METADATA DATE: 	April 17, 2007   	
#  METADATA CONTACT: 	Patrick J. Phillips
#                    		U.S. Geological Survey, Troy, NY
#                    		Major River Basin Study - MRB1 and MRB2
#			425 Jordan Road
#                    		Troy, New York 12180
#                    		voice: 518-285-5601
#                    		fax:   518-285-5700
#                    		email:  pjphilli@usgs.gov
#
#  SECONDARY CONTACT: 	Scott W. Ator
#                    		U.S. Geological Survey, Baltimore, MD
#			Major River Basin Study - MRB1 and MRB2
#                    		8987 Yellow Brick Road
#                    		Baltimore, Maryland 21237      
#                    		voice: 443-498-5564
#                    		fax:   443-498-5510
#                    		email:  swator@usgs.gov
#  
# ------------------------------------------------------------------------------------------------------
#  METADATA Data Description:  
#
#  ABSTRACT: This data set contains the Seasonal Kendall results for Diazinon trends test in surface water 
#	from 1998 to 2004 for 6 seasons.  Details on the trend test are provided in Phillips and others, 2007 
#	(DOI 10.1021/es070301+).  The data was used for sites OH2 and IL1 in Figure 4 in a report documenting 
#	Temporal Diazinon trends in surface water insecticide concentration as a part of the U.S. Geological Survey,
#	National Water Quality Assessment Program.
#
#  SUPPLEMENTAL INFORMATION:
#   	PROCEDURES USED:
#	PROCESS STEP:
#
#	Original diazinon concentration data was pulled for NAWQA sites from the NAWQA Data Warehouse in 
#	October 2005 and imput through a Seasonal Kendall trend test to give the data set detailed here.  
#	Note: Site MA2 did not have a Seasonal Kendall Trends run.  Original diazinon concentrations can be found 
#	for each site under "Insecticide Concentration Data - Diazinon.conc.txt" under the following listed 
#	relatedspatial and tabular data sets. 
#
#	STREND was run on the USGS module for STREND in SPLUS on a PC based version in the 2004-2006 time	
#	frame.  This module is cited in Phillips and others, 2007 (22).  Output from the Seasonal Kendall Test yeilds TREND 
#	and TREND.PCT in units units/year and percent/year respectively.
#
#	Trend Significance was determined by estimated P-Values for Diazinon concentration trend over time for
#	each site.  Significance was flagged if P-Values were equal to 0.1 or less, or determined not significant if larger.
#	Only significant decreasing trends were found.
#
#  Related Spatial and Tabular Data Sets:  
#         	
#	All files listed below were used in the analysis for the report Phillips and others, 2007 (DOI 10.1021/es070301+).
#	These files are all being documented and archived for this report.
#
#		Site and Watershed Summary Data:
#			site.staid.wshed.popu.txt
#
#		Seasonal Kendall Results for Diazinon Trends Test:
#			Skendall.diaz.01, Skendall.diaz.02, Skendall.diaz.03, Skendall.diaz.04, Skendall.diaz.05, 
#			Skendall.diaz.06
#
#		Insecticide Concentration Data:
#			Diazinon.conc.txt, Chlorpyrifos.conc.txt, Carbaryl.conc.txt
#
# ------------------------------------------------------------------------------------------------------
#  METADATA Basic documentation of dataset elements:
#
#     DATA FIELD LABELS:
#
#	SNO
#	STAID
#	TYPE
#	BEGYEAR
#	NUMYEARS
#	NUMSEASONS
#	N
#	TREND	
#	TREND.PCT
#	P.VALUE
#	SIG
#	
#
#     DATA FIELD LENGTH/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:		SNO  		
#       Data Field Description:		Site number detailed in Supporting Table 1	
#       Data Field Length/Type:	3s			
#       Data Source: 		NA	
#       Retrieval Date:  		NA
#		
#       DATA FIELD LABEL:  		STAID
#       Data Field Description:		USGS Station Identifier	
#       Data Field Length/Type:	8s	
#       Data Source: 		USGS National Water Information System (NWIS)	
#       Retrieval Date:  		NA
#
#       DATA FIELD LABEL:  		TYPE
#       Data Field Description:		Denotes whether data meets time series need	
#       Data Field Length/Type:	2s	
#       Data Source: 		NA	
#       Retrieval Date:  		NA
#				
#				Codes for TYPE:
#				CE = Censored
#				<5 = less than 5 years record
#
#       DATA FIELD LABEL:  		BEGYEAR
#       Data Field Description:		Beginning year of data record	
#       Data Field Length/Type:	4d	
#       Data Source: 		NA	
#       Retrieval Date:  		NA
#		
#       DATA FIELD LABEL:		NUMYEARS  		
#       Data Field Description:		Number of years of data record	
#       Data Field Length/Type:	1n	
#       Data Units:			years
#       Data Source: 		NA	
#       Retrieval Date:  		NA
#
#       DATA FIELD LABEL:  		NUMSEASONS 
#       Data Field Description:		Number of Seasons	
#       Data Field Length/Type:	2n	
#       Data Source: 		Seasons set as imput for Seasonal Kendall Program by user	
#       Retrieval Date:  		NA
#
#       DATA FIELD LABEL:  		N
#       Data Field Description:		Number of observations after seasonal selections	
#       Data Field Length/Type:	2n	
#       Data Source: 		NA	
#       Retrieval Date:		NA
#                           
#       DATA FIELD LABEL:		TREND  		
#       Data Field Description:		Concentration trend of Diazinon	
#       Data Field Length/Type:	10n	
#       Data Units:			Units per year
#       Data Source: 		Computed by Seasonal Kendall Program	
#       Retrieval Date:		NA
#
#       DATA FIELD LABEL:  		TREND.PCT		
#       Data Field Description:		Concentration trend of Diazinon	
#       Data Field Length/Type:	7n	
#       Data Units:			Percent of units over length of record
#       Data Source: 		Computed by Seasonal Kendall Program	
#       Retrieval Date:		NA
#
#       DATA FIELD LABEL:		P.VALUE  		
#       Data Field Description:		P-Value or significace level of concentration trend (p)	
#       Data Field Length/Type:	9n	
#       Data Source: 		Computed by Seasonal Kendall Program
#       Retrieval Date:		NA
#
#       DATA FIELD LABEL:  		SIG
#       Data Field Description:		Flag for significant concentration trend (P-Value less than or equal to 0.1)	
#       Data Field Length/Type:	4s	
#       Data Source: 		Determined by P-Value	
#       Retrieval Date:		NA
#
#				Codes for SIG
#				NA = Not applicable
#				none = Not significant
#				down = Significant decreasing concentration trend	
#
#  End METADATA documentation
#
#  BEGIN DATA: Skendall.diaz.02.txt
------------------------------------------------------------------------------------------------------
SNO    STAID           TYPE BEGYEAR NUMYEARS NUMSEASONS   	N        TREND    TREND.PCT  P.VALUE      SIG 
MA1   	01102500       NA      NA       NA              NA 		NA           NA        NA           NA  	      NA
CT1   	01184000       NA      NA       NA              NA 		NA           NA        NA           NA 	      NA
CT2   	01209710       NA      NA       NA              NA 		NA           NA        NA           NA    	      NA
NY1   	01356190       NA      NA       NA              NA 		NA           NA        NA           NA  	      NA
NY2   	01357500       NA      NA       NA              NA 		NA           NA        NA           NA 	      NA
NJ1   	01403300       NA      NA       NA              NA		NA           NA        NA           NA 	      NA
NJ2   	01403900       NA      NA       NA              NA 		NA           NA        NA           NA  	      NA
PA1   	01464907       CE    1998        6                6 		34 -0.001347500 -21.73387  0.10285193   none 
PA2   	01474500       NA      NA       NA              NA 		NA           NA        NA           NA  	      NA
DC1   	01646580       NA      NA       NA              NA		NA           NA        NA           NA   	      NA
VA1   	01654000       CE    1998        6                6 		31 -0.005900000 -45.38462  0.13201278   none
WI1   	04087000       NA      NA       NA              NA 		NA           NA        NA           NA  	      NA
MI1   	04161820       NA      NA       NA              NA 		NA           NA        NA           NA   	      NA
OH1   	04186500       NA      NA       NA              NA 		NA           NA        NA           NA   	      NA
OH2   	04193500       CE    1998        6                6 		35  0.000000000   0.00000   0.59051263   none
IL1   	05531500       CE    1998        6                6 		31 -0.004266667 -21.65821  0.03495529   down
IL2   	05532500       CE    1998        6                6 		30 -0.003737500 -22.18101  0.23967761   none
IL3   	05553500       CE    1998        6                6 		29 -0.004000001 -21.62162  0.04070027   down
IL4   	05586100       CE    1998        6                6 		36 -0.002965000 -27.32719  0.09093892   down
