Hudson River NERR (HUD) Water Quality Metadata Form (Jan. - Dec. 1998) Latest Update: November 13, 2001
Entry ID:
CDMO_hudwq04-12.98m
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Summary
Abstract:
Water quality monitoring is conducted at 26 National Estuarine Research Reserves (NERR) at four locations within or adjacent to the reserve. The following parameters are collected at least every 30 minutes: water temperature, specific conductivity, salinity, percent saturation, dissolved oxygen concentration, water depth, pH and turbidity. All water quality data loggers will be deployed from a known depth from the bottom at each site.
Purpose:
Research objectives Measurements are taken every 30 minutes over a two to four week period from April 1 through the end of November of each year at two locations within the Tivoli Bays component of the Hudson River NERR. One datalogger monitors tributary water (Saw Kill, SK) entering the bay and the other monitors the Hudson River water flooding and ebbing to and from the bay (TS). The objective ... of this study is to monitor the quality of the surface water entering (via stream flow and tidal exchange) and leaving (via tidal exchange) Tivoli South Bay. This will help us understand the relative importance on each source of water on Tivoli South Bay. The Reserve staff have identified urban and residential land use practices as having a major influence on the water chemistry of the Saw Kill. Since residential coverage continues to increase, we hope that the intensive monitoring of the surface waters in this watershed will identify trends caused by this rapid development.
SUPPLEMENTAL INFORMATION:
Associated researchers and projects Hudson River NERR Water Quality Monitoring: Physical and chemical constituents of the tributary waters discharging into HUDNERR marshes and marsh waters during ebb tides are measured monthly and during storm events. Concentrations of nitrate, phosphate, sulphate, dissolved oxygen (DO), and chloride are measured, as well as, seston, alkalinity, pH, temperature, salinity, and conductivity. Saw Kill Water Quality Monitoring: The surface water draining from five subcatchments representing five dominant land use practices within the Saw Kill have been monitored during several storm events. These five land use practices include: row crop agriculture, orchard, residential, solid waste landfill, and forested. All of the above constituents have been monitored during this project. Associated researchers with the work at Tivoli Bays include: scientists from the Institute of Ecosystem Studies, Millbrook, NY; Yale School of Forestry and Environmental Studies, New Haven, CT; and Rensselaer Polytechnic Institute, Troy, NY.
CURRENTNESS REFERENCE:
Observed
SPATIAL DATA ORGANIZATION INFORMATION:
Indirect Spatial Reference: Site location and character The Hudson River National Estuarine Research Reserve (HUDNERR) is a multicomponent site composed of approximately 5,000 acres of tidal wetland, open water, and adjacent upland buffer habitat. The four component sites of the Reserve are located on the Hudson River in New York State by river miles (RM) proceeding north from the southern tip of Manhattan. These include: Stockport Flats (RM 124)(42o02'30"N 73o46'00"W), Columbia County; Tivoli Bays (RM 98)(42o02'15"N 73o55'10"W), Dutchess County; and Iona Island (RM 45)(41o18'15"N 73o58'45"W) and Piermont Marsh (RM 24)(41o02'30"N 73o54'15"W), Rockland County. These four components are located along 100 river miles of the Hudson and are representative of the diverse plant and animal communities that occupy the salinity gradient within the Hudson estuary. Development within the watersheds of Hudson River NERR component sites ranges from predominantly urban/suburban to forested/agricultural. The two YSI6000 dataloggers are placed at Tivoli Bays component site. The Saw Kill (SK) 42? 01’ 01.543”N, 73? 54’ 53.589”W drains a 26.6 square mile (6886.5 hectares) watershed that is characterized as a highly mixed land use watershed. These are both freshwater sites (0.0 ppt salinity). Water depth at ranges from 0.0 to 2.0m at TS and 1.0 to 2.0 at SK. Bottom type at TS is rocky and at SK is soft silt/clay. The dominant land uses within this watershed include: forested (51.1%), agriculture (25.8%), and urban (16.5%). Tivoli South Bay (TS) 42? 01’ 37.336”W, 73? 55’ 33.445”W, the receiving body for the Saw Kill, is a tidal freshwater wetland with a tidal range of 3.9 ft. (1.19 m). 
Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
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N: 42.36
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S: 41.01
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E: -73.76
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W: -73.99
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Data Set Citation
Dataset Originator/Creator:
William C. Nieder
Dataset Title:
Hudson River NERR (HUD) Water Quality Metadata Form (Jan. - Dec. 1998) Latest Update: November 13, 2001
Dataset Release Date:
2006-02-10
Data Presentation Form:
Unknown
Other Citation Details:
NA
Online Resource:
http://cdmo.baruch.sc.edu/
Parent DIF
This data set description is a member of a collection. The
collection is described in
noaanosnerr_d_nerrparent
Temporal Coverage
Start Date:
1998-04-01
Stop Date:
1998-12-31
Quality
ATTRIBUTE ACCURACY REPORT: Anomalous/Suspect Data April SK: None to report TS: Turbidity spike occurred on 4/1/98@20:30 (1358NTU), this value was deleted since it was erratic. May SK: Turbidity measurements on 05/02/98 at 20:00:00 (-0136NTU) and at 20:30:00 (-0053NTU) were erratic and likely caused by probe blockage. These values were deleted. TS: Negative turbidity spike occurred on 5/31/98@14:30 ... (-0011NTU). Data point erratic and was deleted. June SK: Turbidity measurements from 06/20/98 @ 08:30:00 through 06/22/98 @ 10:00:00 were erratic. Post calibration check of the probe on 0.0NTU measured 24.6NTU. After cleaning, the probe measured 0.0NTU. During the deployment period, the probe became fouled. These readings were left in but are suspect. TS: DO (mg/L and %sat) from 6/22/98@15:30 to end of month were negative due to faulty probe. Turbidity data from 6/25/98@19:30 to end of month were high because wiper fell off after deployment. July SK: None to report TS: DO (mg/L and %sat) from 7/1/98@00:00 to 7/4/98@20:30 and 7/7/98@00:00 - 7/22/98@10:30 were negative and were deleted. This was caused first by a faulty probe and then by a punctured membrane on a replacement probe. Turbidity from 7/1/98@00:00 to 7/4/98@20:30 were high because wiper fell off during deployment, all data was deleted. Turbidity spike occurred on 7/30/98@10:00 (1063NTU) measurement is erratic and was likely caused by probe blockage, this number was deleted. August: SK: Turbidity readings on 08/28/98 @ 21:00:00 and 21:30:00 were 0201NTU and 0332 NTU respectively. Cause unknown, possibly probe blockage. Values suspect but left in. TS: Post calibration check on DO was low (89.8%) for deployment that covered 8/27/98@12:00 to end of month. Therefore, recorded DO levels could be lower than what actually occurred. September: SK: Turbidity values of -0.1NTU recorded on 09/02/98 17:00; 09/09/98 14:30; 09/10/98 15:00 & 16:00; 09/11/98 12:00, 12:30, 14:30, 15:00, & 15:30. These values were likely reading 0.0NTU and are well within the range of variability of the instrument. All numbers changed to 0.0NTU. TS: Slightly negative depths were recorded on 9/7/98@9:00 (-0.01m) and 9/7/98@21:00 (- 0.02m). Probes were not exposed so these values are likely due to pressure changes and the values deviate from 0.0m. Values replaced with 0.0m since they are within the acceptable range of the instrument. Many negative turbidity values were recorded from 9/1/98 00:00 to 9/10/98 11:00 due to gear box failure. All negative numbers were deleted. These included: Date Time Turb mm/dd/yy hh:mm:ss NTU 09/04/98 11:30:00 -1126 09/07/98 01:00:00 -1016 09/07/98 02:00:00 -0113 09/07/98 20:30:00 -0140 09/07/98 21:00:00 -0124 09/08/98 02:30:00 -0360 09/08/98 03:00:00 -1122 Post calibration check on turbidity for deployment from 9/1/98 00:00 to 9/10/98 11:00 was slightly negative (-0000.1NTU). Several slightly negative (-0000.1 to - 0000.6 NTU) occured during deployment and are being treated as 0000NTU since this range is acceptable variation for the instrument. Note that the CDMO column reformat macro replaced and negative decimal value with 0000NTU. October: SK: Several negative turbidity values were logged from 10/08/98 - 10/10/98. These occurred during a real turbidity event, however, I do not know why the instrument logged negative values. Values are suspect but left in. These included the following: Date Time Turbidity mm/dd/yy hh:mm:ss NTU 10/08/98 12:00:00 -0031 10/08/98 12:30:00 -0074 10/08/98 13:00:00 -0190 10/08/98 13:30:00 -0033 10/08/98 14:00:00 -0179 10/08/98 14:30:00 -0091 10/10/98 09:30:00 -0017 10/10/98 12:30:00 -0082 10/10/98 13:00:00 -0015 10/10/98 15:00:00 -0051 10/10/98 15:30:00 -0086 TS: Slightly negative depth values changed to 0.0m since probes were not exposed on 10/31/98 4:00 (-0.04m), 4:30 (-0.04m), 5:00 (-0.02m). Likely caused by changes in atmospheric pressure. All values appear to be out of the water from 10/02/98 04:30:00 to 05:00:00 due to low tide where depth was low and salinity was zero. Values removed. November SK: Post deployment calibration checks of percent saturation of DO during two deployments (affecting data collected from 11/05 - 11/30) was high (104.6 and 106.0%). Drift is likely the cause. All DO% data collected during this period could therefore be 4- 6% higher than actually existed. Data were left in but are suspect. TS: Slightly negative depth values changed to 0.0m since probes were not exposed on 11/28/98 01:30 (-0.03m), 02:00 (-0.07m); 11/29/98 14:00 (-0.03m), 14:30 (- 0.06m), 15:00 (- 0.03m). Likely caused by changes in atmospheric pressure. Negative depth on 11/28/98@2:30 (-0.07m) did result in exposing the probes so all data for this time was deleted. Post calibration check on 11/25/98 @ 15:00 - end of month deployment for DO% was 117%. All DO data from 11/25/98 15:00:00 through 11/30/98 23:30:00 were deleted. December: SK: None to report TS: Probes exposed on following dates so all data were removed: 12/2/98@6:00-6:30, 12/3/98@7:30, 12/22/98@22:30-12/23/98@00:00. Several negative turbidity values were recorded and the cause could be due to exposure of the probes on several occasions. These have all been deleted and included the following: Date Time Turb mm/dd/yy hh:mm:ss NTU 12/01/98 02:00:00 -0013 12/01/98 02:30:00 -0063 12/01/98 03:00:00 -0008 12/02/98 12:30:00 -0002 12/02/98 13:00:00 -0018 12/02/98 13:30:00 -0042 12/02/98 14:00:00 -0063 12/02/98 14:30:00 -0085 12/02/98 15:00:00 -0127 12/02/98 15:30:00 -0082 12/02/98 16:00:00 -0126 12/02/98 16:30:00 -0019 12/02/98 17:00:00 -0002 12/02/98 20:30:00 -0008 12/07/98 07:00:00 -0070 12/07/98 07:30:00 -0119 12/07/98 08:00:00 -0163 12/07/98 08:30:00 -0203 12/07/98 09:00:00 -0064 12/07/98 10:00:00 -0014 The following negative depth values were recorded during this month. These were fairly large but did not result in probe exposure so they were left in. I did not convert them to 0.0m due to the size and the artificial truncation of the tidal curve that would result if I replaced them with 0.0m. They are a result of changes in atmospheric pressure. Date Time Depth mm/dd/yy hh:mm:ss m 12/02/98 07:00:00 -0.01 12/02/98 19:30:00 -0.02 12/03/98 06:30:00 -0.06 12/03/98 07:00:00 -0.09 12/03/98 08:00:00 -0.07 12/03/98 20:00:00 -0.02 12/03/98 20:30:00 -0.02 12/11/98 02:30:00 -0.01 12/11/98 03:00:00 -0.02 12/14/98 04:30:00 -0.01 12/14/98 05:00:00 -0.01 12/16/98 05:30:00 -0.04 12/16/98 06:00:00 -0.12 12/16/98 06:30:00 -0.14 12/16/98 07:00:00 -0.09 12/16/98 18:30:00 -0.05 12/16/98 19:00:00 -0.07 12/18/98 20:30:00 -0.02 12/18/98 21:00:00 -0.01 12/22/98 22:00:00 -0.01 Post deployment information LOGICAL CONSISTENCY REPORT: NACOMPLETENESS REPORT: Data collection period YSI6000 datalogger sampling at the Saw Kill (SK) and Tivoli South Bay (TS) began during May, 1995. Sampling at Tivoli North Bay (TN) began during July, 1996. All sampling is ongoing, however, we cannot sample from approximately December 1 through March 31 due to winter storms and ice on the Hudson River and tributaries. During a tropical storm during mid-July the SK deployment site was damaged and we were unable to repair it during 1996. This site should be operational by April 1997. Deleted Data Missing Data TN: April - December. Note that no instruments were deployed at this site during 1998. Review of the 1996 data indicated that the deployment site was exposed during daily low tides. A new site has been identified and we hope to deploy instruments at TN in 1999. April: SK: No data 04/20/98 15:00:00 - 15:30:00. Instrument retrieved and newly calibrated one deployed. TS: No data 4/1/98 00:00 - 4/1/98 10:30. Instrument not deployed yet. No data 4/13/98 8:30 - 10:00 and 4/30/98 11:00 - 15:30 for instrument swap. Turbidity data for 4/1/98 @ 20:30 was abnormally high and was deleted. May SK: Turbidity measurements on 05/02/98 at 20:00:00 (-0136NTU) and at 20:30:00 (-0053NTU) were erratic and likely caused by probe blockage. These values were deleted. No data were collected 05/05/98 @ 11:00:00 and 11:30:00; 05/18/98 14:30:00. Instrument retrieved and newly calibrated one deployed. TS: No data collected 5/17/98 13:30 - 15:30 for instrument swap. Negative turbidity spike occurred on 5/31/98@14:30 (-0011NTU), data point erratic and was deleted. June SK: No data were collected 06/22/98 @ 10:30:00. Instrument retrieved and newly calibrated one deployed. TS: No data for the following times due to instrument swap: 6/2/98@16:00, 6/22/98@15:00 No DO (mg/L and %sat) from 6/22/98@15:30 to end of month (faulty probe). No turbidity data from 6/25/98@19:30 to end of month (wiper fell off, many high turb. Values recorded). July: SK: None to report TS: No data 7/4/98@21:00 to 7/7/98@15:00 due to probe problems, instrument not deployed. No data 7/22/98@11:00 to 7/28/98@13:00 due to probe problems, instrument not deployed. DO (mg/L and %sat) from 7/1/98@00:00 to 7/4/98@20:30 and 7/7/98@00:00 -7/22/98@10:30 were negative and were deleted. This was caused first by a faulty probe and then by a punctured membrane on a replacement probe. Turbidity from 7/1/98@00:00 to 7/4/98@20:30 were high because wiper fell off during deployment, all data was deleted. Turbidity spike occurred on 7/30/98@10:00 (1063NTU) measurement is erratic and was likely caused by probe blockage, this number was deleted. August: SK: No data 08/11/98 @ 15:00:00-16:00:00. Instrument retrieved and newly calibrated one deployed. TS: No data 8/12/98@ 11:30-12:00 and 8/27/98@11:30 for instrument swap. September: SK: No data 09/11/98 16:30 - 17:00. Instrument retrieved and newly calibrated one deployed. TS: No data 9/10/98@11:30 due to instrument swap. Many large negative turbidity values were recorded from 9/1/98 00:00 to 9/10/98 11:00 due to gear box failure. All large negative numbers were deleted. These included: Date Time Turb mm/dd/yy hh:mm:ss NTU 09/04/98 11:30:00 -1126 09/07/98 01:00:00 -1016 09/07/98 02:00:00 -0113 09/07/98 20:30:00 -0140 09/07/98 21:00:00 -0124 09/08/98 02:30:00 -0360 09/08/98 03:00:00 -1122 October: SK: No data 10/01/98 14:30 - 18:30 due to instrument swap. TS: No data 10/1/98@16:00 and 10/29/98@14:00-14:30 due to instrument swap. All values appear to be out of the water from 10/02/98 04:30:00 to 05:00:00 due to low tide where depth was low and salinity was zero. Values removed. November: SK: None to report TS: No data 11/28/98@02:30, probes exposed Post calibration check on 11/25/98 @ 15:00 - end of month deployment for DO% was 117%. All DO data from 11/25/98 15:00:00 through 11/30/98 23:30:00 were deleted. December: SK: No data collected 12/23/98 12:00:00 though 12/31/98 23:30:00. Instruments pulled for year due to ice and freezing temperatures. TS: All DO data from 12/01/98 00:00:00 through 12/10/98 11:30:00 were deleted due to suspect deployment where DO values were >100%. No data 12/10/98@11:00-11:30 due to instrument swap. No data 12/23/98@11:30 to end of month, instruments pulled for the year due to ice and winter weather. Probes exposed on following dates so all data were removed: 12/2/98@6:00- 6:30, 12/3/98@7:30, 12/22/98@22:30-12/23/98@00:00. Several negative turbidity values were recorded and the cause could be due to exposure of the probes on several occasions. These have all been deleted and included the following: Date Time Turb mm/dd/yy hh:mm:ss NTU 12/01/98 02:00:00 -0013 12/01/98 02:30:00 -0063 12/01/98 03:00:00 -0008 12/02/98 12:30:00 -0002 12/02/98 13:00:00 -0018 12/02/98 13:30:00 -0042 12/02/98 14:00:00 -0063 12/02/98 14:30:00 -0085 12/02/98 15:00:00 -0127 12/02/98 15:30:00 -0082 12/02/98 16:00:00 -0126 12/02/98 16:30:00 -0019 12/02/98 17:00:00 -0002 12/02/98 20:30:00 -0008 12/07/98 07:00:00 -0070 12/07/98 07:30:00 -0119 12/07/98 08:00:00 -0163 12/07/98 08:30:00 -0203 12/07/98 09:00:00 -0064 12/07/98 10:00:00 -0014 LINEAGE/PROCESS STEP: PROCESS DESCRIPTION: Additional Description: Entry verification The Centralized Data Management Office re-processed all SWMP water data collected from 1995-2002 to include an identifying station code (three letter reserve code, two letter sampling site code and data type code), a four digit year date stamp (mm/dd/yyyy) and a corrected time column (hh:mm). With the new format, the use of periods to denote deleted or missing data has been abandoned. Hence, all periods contained in the SWMP water data collected prior 2003 were removed and left blank. Data are analyzed for outliers and anomalies using the outlier macro for Excel 5.0 developed by the CDMO. These macros discover outlier values which fall outside the range that the instrument is designed to measure (see section II.8 of this document). After outliers and anomalous data are identified using the CDMO Find Variable Outliers macro, all data are graphed in Excel to help identify outliers that fall within the range of the probes and also anomalous trends. Missing data are identified using the CDMO Excel Date, Hour Count macro. All columns are formatted using the CDMO Excel Column Reformat macro. All data was FTPed to the CDMO via the CDMO dial-up access. All raw data files are archived at the CDMO and on 3.5" disks. Questionable data are either deleted or identified in section II.10. All missing data and deleted data will be identified in section II.11. Person responsible for data verification: Research Coordinator. PROCESS DATE: 20060210
Access Constraints
Data collected in conjunction with the National Estuarine Research Reserve System's (NERRS) System-wide Monitoring Program (SWMP) is considered public information. Please see site for further information: http://cdmo.baruch.sc.edu/aboutdata.htm
Use Constraints
The principal investigator (PI) listed in the enclosed metadata retains the right to be fully credited for having collected and processed the data. Please see the site for further information: http://cdmo.baruch.sc.edu/aboutdata.htm
Data Set Progress
COMPLETE
Distribution
Distribution Format:
Ascii File, Formatted For Text Attributes, Declared Format (ASCII)NA
Fees:
Data is available at no charge.
Personnel
Role:
TECHNICAL CONTACT
Role:
DIF AUTHOR
Contact Address:
New York State Department of Environmental Conservation
City:
Annandale
Province or State:
NY
Postal Code:
12504
Country:
USA
Creation and Review Dates
DIF Creation Date:
2008-08-01
Last DIF Revision Date:
2008-10-10
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