Suspended-sediment concentrations and loss-on-ignition from water samples collected in the Herring River during 2018-19 in Wellfleet, MA (ver 1.1, March 2023)

Frequently anticipated questions:

• What does this data set describe?
  1. How might this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
  3. What similar or related data should the user be aware of?
• How reliable are the data; what problems remain in the data set?
  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

What does this data set describe?

1. How might this data set be cited?
   De, Olivia A. Meo, Suttles, Steven E., Ganju, Neil K., and Marsjanik, Eric D., 20220331, Suspended-sediment concentrations and loss-on-ignition from water samples collected in the Herring River during 2018-19 in Wellfleet, MA (ver 1.1, March 2023): data release DOI:10.5066/P9ZL2IPN, U.S. Geological Survey, Reston, VA.

   Online Links:

   • https://doi.org/10.5066/P9ZL2IPN
   • https://www.sciencebase.gov/catalog/item/6227bcced34ee0c6b38b8003

   Other_Citation_Details:

   Suggested citation: De Meo, O.A., Suttles, S.E., Ganju, N.K., and Marsjanik, E.D., 2022, Suspended-sediment concentrations and loss-on-ignition from water samples collected in the Herring River during 2018-19 in Wellfleet, MA (ver 1.1, March 2023): U.S. Geological Survey data release, https://doi.org/10.5066/P9ZL2IPN.

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -70.06998
   East_Bounding_Coordinate: -70.05877
   North_Bounding_Coordinate: 41.93101
   South_Bounding_Coordinate: 41.92229
   

3. What does it look like?

   https://www.sciencebase.gov/catalog/file/get/6227bcced34ee0c6b38b8003?name=HerringRiverBrowse.JPG (JPEG)

   Picture of the Herring River

4. Does the data set describe conditions during a particular time period?

   Beginning_Date: 12-Nov-2018

   Ending_Date: 23-Oct-2019

   Currentness_Reference:

   Ground condition. Water samples were collected on the following dates: November 12 and 15, 2018; February 13 and 15, 2019; May 13 and 16, 2019; July 25, 2019; August 7, 2019; September 19, 2019; October 21 and 23, 2019.

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: tabular digital data
   

6. How does the data set represent geographic features?
   1. How are geographic features stored in the data set?
      This is a Point data set. It contains the following vector data types (SDTS terminology):
      • Point (94)
   2. What coordinate system is used to represent geographic features?
      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.00001. Longitudes are given to the nearest 0.00001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is North American Datum of 1983 (National Spatial Reference System 2011).
      The ellipsoid used is GRS_1980.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.
      

      Vertical_Coordinate_System_Definition:

      Depth_System_Definition:

      Depth_Datum_Name: Local surface
      Depth_Resolution: 0.01
      Depth_Distance_Units: meters
      Depth_Encoding_Method: Explicit depth coordinate included with horizontal coordinates
      

7. How does the data set describe geographic features?

   WellfleetWaterSamples

   Suspended-sediment concentration (SSC) and loss-on-ignition (LOI) of collected water samples. (Source: U.S. Geological Survey)

   Laboratory ID

   Laboratory identifier. (Source: U.S. Geological Survey) Character string.

   Sample ID

   Sample identifier. (Source: U.S. Geological Survey) Character string.

   Station ID

   Station identifier: Outer Channel (OC), Herring River (HR), Flank Shallow (FS), Flank Deep (FD). (Source: U.S. Geological Survey) Character string.

   Sample Date

   Calendar date (dd-mmm-yy) when water sample was collected. (Source: U.S. Geological Survey) Character string.

   Sample Time (UTC)

   Time in universal coordinated time (UTC) and 24-hour format HH:MM:SS when water sample was collected. (Source: U.S. Geological Survey) Character string.

   Latitude

   Latitude coordinate, in decimal-degrees, of sample location. South latitude recorded as negative values. (Source: U.S. Geological Survey)

   Range of values
   Minimum:	41.92223
   Maximum:	41.93101
   Units:	decimal degrees

   Longitude

   Longitude coordinate, in decimal degrees, of sample location. West longitude is recorded as negative values. (Source: U.S. Geological Survey)

   Range of values
   Minimum:	-70.06997
   Maximum:	-70.05877
   Units:	decimal degrees

   Total Depth (m)

   Total water depth at time of sample. (Source: U.S. Geological Survey)

   Range of values
   Minimum:	0.3
   Maximum:	3.9
   Units:	meters

   Sample Depth (m)

   Depth of water sample collection. (Source: U.S. Geological Survey)

   Range of values
   Minimum:	0.1
   Maximum:	3.1
   Units:	meters

   Filter number

   Manufacturer's filter ID number. (Source: U.S. Geological Survey) Character string.

   Filter Weight (g)

   Weight of filter only, i.e. prior to filtering sample. (Source: U.S. Geological Survey)

   Range of values
   Minimum:	0.1083
   Maximum:	0.3512
   Units:	grams

   Sample Volume (ml)

   Volume of water sample passed through the filter. (Source: U.S. Geological Survey)

   Range of values
   Minimum:	335
   Maximum:	560
   Units:	milliliters

   Dried at 105C Weight 1 (g)

   Mass from first dry-weighing of filter plus residue retained on filter from sample after filtering and drying. (Source: U.S. Geological Survey)

   Range of values
   Minimum:	0.1106
   Maximum:	0.6907
   Units:	grams

   Dried at 105C Weight 2 (g)

   Mass from second dry-weighing of filter plus residue retained on filter from sample after filtering and drying. (Source: U.S. Geological Survey)

   Range of values
   Minimum:	0.1105
   Maximum:	0.6906
   Units:	grams

   Muffled at 550C Weight 1 (g)

   Mass from first dry-weighing of filter plus residue retained on filter after muffling at 550C. (Source: U.S. Geological Survey)

   Range of values
   Minimum:	0.1097
   Maximum:	0.6754
   Units:	grams

   Muffled at 550C Weight 2 (g)

   Mass from second dry-weighing of filter plus residue retained on filter after muffling at 550C. (Source: U.S. Geological Survey)

   Range of values
   Minimum:	0.1093
   Maximum:	0.6747
   Units:	grams

   Dried Sediment Mass (g)

   Mass of dried residue on filter = Dried weight (average of both weights) - Filter weight. (Source: U.S. Geological Survey)

   Range of values
   Minimum:	0.0011
   Maximum:	0.4549
   Units:	grams

   Muffled Sediment Mass (g)

   Mass of muffled residue on filter = Muffled weight (average of both weights) - Filter weight. (Source: U.S. Geological Survey)

   Range of values
   Minimum:	0.0000
   Maximum:	0.4393
   Units:	grams

   Mass LOI (g)

   Mass of volatile solids retained on the filter that were removed when combusted (loss-on-ignition) = Dried Sediment Mass - Muffled Sediment Mass. (Source: U.S. Geological Survey)

   Range of values
   Minimum:	0.0008
   Maximum:	0.0591
   Units:	grams

   Fraction LOI

   Ratio of mass of retained solids that were removed when combusted (loss-on-ignition) to the total mass of dried solids retained on the filter = (Mass LOI) / (Dried Sediment Mass). (Source: U.S. Geological Survey)

   Range of values
   Minimum:	0.0343
   Maximum:	0.9615
   Units:	grams

   Total Dried Sediment Mass (g)

   Sum of Dried Sediment Mass for all filters used for a single water sample. Same as Dried Sediment Mass if only one filter was used for a sample. (Source: U.S. Geological Survey)

   Range of values
   Minimum:	0.0011
   Maximum:	0.4549
   Units:	grams

   Total Muffled Sediment Mass (g)

   Sum of Muffled Sediment Mass for all filters used for a single water sample. Same as Muffled Sediment Mass if only one filter was used for a sample. (Source: U.S. Geological Survey)

   Range of values
   Minimum:	0.0000
   Maximum:	0.4393
   Units:	grams

   Total Mass LOI (g)

   Sum of LOI Mass (loss-on-ignition) for all filters used for a single water sample. Same as LOI Mass if only one filter was used for a sample. (Source: U.S. Geological Survey)

   Range of values
   Minimum:	0.0008
   Maximum:	0.0591
   Units:	grams

   Total Fraction LOI

   Ratio of total mass of retained solids that were removed when combusted (loss-on-ignition) to the total mass of dried solids retained on filter(s) for a sample = (Total Mass LOI) / (Total Dried Sediment Mass). (Source: U.S. Geological Survey)

   Range of values
   Minimum:	0.0343
   Maximum:	0.9615
   Units:	grams

   SSC (g l-1)

   Suspended-sediment concentration (SSC) for a sample = (Total Dried Sediment Mass) / (Sample Volume). (Source: U.S. Geological Survey)

   Range of values
   Minimum:	0.0020
   Maximum:	0.8919
   Units:	grams per liter

   Inorganic SSC (g l-1)

   Suspended sediment concentration (SSC) of inorganic solids in a sample = (Total Muffled Mass) / (Sample Volume). (Source: U.S. Geological Survey)

   Range of values
   Minimum:	0.0001
   Maximum:	0.8613
   Units:	grams per liter

   Filtration Date

   Calendar date (dd-mmm-yy) when water sample was filtered. (Source: U.S. Geological Survey) Character string.

   Comments

   Comments and/or notes for the sample. Not every sample will have comments. (Source: U.S. Geological Survey) Character string.

   Entity_and_Attribute_Overview:

   These data are available in a CSV format and an Esri shapefile. The first line of the CSV file is a header line and those labels are the same as defined in the attribute section. The shapefile has the same fields as the CSV file and two additional attributes, FID (an internal feature number) and Shape (feature geometry). Please note that some of the field names in the shapefile were modified to include underscores instead of spaces and hyphens and truncated to 10 characters since a shapefile has restrictions on field name characters and length.

   Entity_and_Attribute_Detail_Citation:

   USGS Field Activities 2018-057-FA, 2018-058-FA, 2019-005-FA, 2019-013-FA, 2019-020-FA, 2019-026-FA, 2019-029-FA, 2019-030-FA, 2019-035-FA, 2019-039-FA, 2019-040-FA.

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Olivia A. De Meo
   • Steven E. Suttles
   • Neil K. Ganju
   • Eric D. Marsjanik
2. Who also contributed to the data set?
3. To whom should users address questions about the data?
   Olivia A. De Meo

   U.S. Geological Survey

   Technical Information Specialist

   384 Woods Hole Road

   Woods Hole, MA
   

   US

   508-548-8700 x2356 (voice)

   508-457-2310 (FAX)

   odemeo@usgs.gov

Why was the data set created?

How was the data set created?

1. From what previous works were the data drawn?
2. How were the data generated, processed, and modified?

   Date: Nov-2018 (process 1 of 25)

   First sample collection: collected two water samples using van Dorn water sampler in the Outer Channel and the Herring River on 20181112 and 20181115. Person who carried out this activity:
   

   Steven E Suttles

   U.S. Geological Survey, Northeast Region

   Mechanical Engineer

   384 Woods Hole Road

   Woods Hole, MA
   

   US

   508-458-8700 (voice)

   whsc_data_contact@usgs.gov

   Contact_Instructions:

   The contact email address is a generic address in the event the person is no longer with USGS.

   Date: Nov-2018 (process 2 of 25)

   Filtered water samples at USGS Woods Hole Coastal and Marine Science Center Sediment Laboratory using 47mm, 1.5 micron pore size, pre-weighed, pre-volatilized 934-AH glass fiber filters. Entire sample volume was filtered. If necessary, samples were split between two or more filters if solids load was too much for a single filter. Water samples were resuspended in bottle prior to pouring into filter funnel. A final rinse was made using deionized water to wash out dissolved salts from each filter. The Woods Hole Coastal and Marine Science Center Sediment Laboratory is the contact for this process step and any subsequent process steps where the analysis was conducted in that laboratory. Person who carried out this activity:
   

   U.S. Geological Survey

   Attn: WHCMSC Sediment Laboratory Manager

   Lab Manager

   384 Woods Hole Rd.

   Woods Hole, MA
   

   USA

   (508) 548-8700 x2277 (voice)

   (508) 457-2310 (FAX)

   gs-wh_sedlab@usgs.gov

   Date: Nov-2018 (process 3 of 25)

   Determined suspended-sediment concentration (SSC) in grams per liter using "Solids, residue at 105 C, suspended, gravimetric" method from Fishman and Friedman (1989). Laboratory analysis was conducted at USGS Woods Hole Coastal and Marine Science Center Sediment Laboratory using an Ohaus AX224 micro-balance. Determined loss-on-ignition (LOI) using method "Solids, volatile-on-ignition, suspended, gravimetric from Fishman and Friedman (1989). An ATI Cahn C-44 micro-balance was used to weigh the filters.

   Date: Feb-2019 (process 4 of 25)

   Second sample collection: collected four samples using van Dorn water sampler at the Outer Channel and Herring River on 20190213 and 20190215. Process contact Steve Suttles.

   Date: Feb-2019 (process 5 of 25)

   Filtered water samples at USGS Woods Hole Coastal and Marine Science Center Sediment Laboratory using 47mm, 1.5 micron pore size, pre-weighed, pre-volatilized 934-AH glass fiber filters. Entire sample volume was filtered. If necessary, samples were split between two or more filters if solids load was too much for a single filter. Water samples were resuspended in bottle prior to pouring into filter funnel. A final rinse was made using deionized water to wash out dissolved salts from each filter.

   Date: Feb-2019 (process 6 of 25)

   Determined suspended-sediment concentration (SSC) in grams per liter using "Solids, residue at 105 C, suspended, gravimetric" method from Fishman and Friedman (1989). Laboratory analysis was conducted at USGS Woods Hole Coastal and Marine Science Center Sediment Laboratory using an Ohaus AX224 micro-balance. Determined loss-on-ignition (LOI) using method "Solids, volatile-on-ignition, suspended, gravimetric from Fishman and Friedman (1989). An ATI Cahn C-44 micro-balance was used to weigh the filters.

   Date: May-2019 (process 7 of 25)

   Third sample collection: collected 20 water samples using van Dorn water sampler at Outer Channel, Herring River, Flank Shallow, and Flank Deep on 20190513 and 20190516. Process contact Steve Suttles.

   Date: Jun-2019 (process 8 of 25)

   Filtered water samples at USGS Woods Hole Coastal and Marine Science Center Sediment Laboratory using 47mm, 1.5 micron pore size, pre-weighed, pre-volatilized 934-AH glass fiber filters. Entire sample volume was filtered. If necessary, samples were split between two or more filters if solids load was too much for a single filter. Water samples were resuspended in bottle prior to pouring into filter funnel. A final rinse was made using deionized water to wash out dissolved salts from each filter.

   Date: Jun-2019 (process 9 of 25)

   Determined suspended-sediment concentration (SSC) in grams per liter using "Solids, residue at 105 C, suspended, gravimetric" method from Fishman and Friedman (1989). Laboratory analysis was conducted at USGS Woods Hole Coastal and Marine Science Center Sediment Laboratory using an Ohaus AX224 micro-balance. Determined loss-on-ignition (LOI) using method "Solids, volatile-on-ignition, suspended, gravimetric from Fishman and Friedman (1989). An ATI Cahn C-44 micro-balance was used to weigh the filters.

   Date: Jul-2019 (process 10 of 25)

   Fourth sample collection: collected 24 water samples using van Dorn water sampler in the Herring River on 20190725. Process contact Steve Suttles.

   Date: Jul-2019 (process 11 of 25)

   Filtered water samples at USGS Woods Hole Coastal and Marine Science Center Sediment Laboratory using 47mm, 1.5 micron pore size, pre-weighed, pre-volatilized 934-AH glass fiber filters. Entire sample volume was filtered. If necessary, samples were split between two or more filters if solids load was too much for a single filter. Water samples were resuspended in bottle prior to pouring into filter funnel. A final rinse was made using deionized water to wash out dissolved salts from each filter.

   Date: Jul-2019 (process 12 of 25)

   Determined suspended-sediment concentration (SSC) in grams per liter using "Solids, residue at 105 C, suspended, gravimetric" method from Fishman and Friedman (1989). Laboratory analysis was conducted at USGS Woods Hole Coastal and Marine Science Center Sediment Laboratory using an Ohaus AX224 micro-balance. Determined loss-on-ignition (LOI) using method "Solids, volatile-on-ignition, suspended, gravimetric from Fishman and Friedman (1989). An ATI Cahn C-44 micro-balance was used to weigh the filters.

   Date: Aug-2019 (process 13 of 25)

   Fifth sample collection: Collected 20 water samples using van Dorn water sampler in the Outer Channel on 20190807. Process contact Steve Suttles.

   Date: Aug-2019 (process 14 of 25)

   Filtered water samples at USGS Woods Hole Coastal and Marine Science Center Sediment Laboratory using 47mm, 1.5 micron pore size, pre-weighed, pre-volatilized 934-AH glass fiber filters. Entire sample volume was filtered. If necessary, samples were split between two or more filters if solids load was too much for a single filter. Water samples were resuspended in bottle prior to pouring into filter funnel. A final rinse was made using deionized water to wash out dissolved salts from each filter.

   Date: Aug-2019 (process 15 of 25)

   Determined suspended-sediment concentration (SSC) in grams per liter using "Solids, residue at 105 C, suspended, gravimetric" method from Fishman and Friedman (1989). Laboratory analysis was conducted at USGS Woods Hole Coastal and Marine Science Center Sediment Laboratory using an Ohaus AX224 micro-balance. Determined loss-on-ignition (LOI) using method "Solids, volatile-on-ignition, suspended, gravimetric from Fishman and Friedman (1989). An ATI Cahn C-44 micro-balance was used to weigh the filters.

   Date: Sep-2019 (process 16 of 25)

   Sixth sample collection: collected one water sample using van Dorn water sampler in the Flank Deep on 20190919. Process contact Steve Suttles.

   Date: Oct-2019 (process 17 of 25)

   Filtered water samples at USGS Woods Hole Coastal and Marine Science Center Sediment Laboratory using 47mm, 1.5 micron pore size, pre-weighed, pre-volatilized 934-AH glass fiber filters. Entire sample volume was filtered. If necessary, samples were split between two or more filters if solids load was too much for a single filter. Water samples were resuspended in bottle prior to pouring into filter funnel. A final rinse was made using deionized water to wash out dissolved salts from each filter.

   Date: Oct-2019 (process 18 of 25)

   Determined suspended-sediment concentration (SSC) in grams per liter using "Solids, residue at 105 C, suspended, gravimetric" method from Fishman and Friedman (1989). Laboratory analysis was conducted at USGS Woods Hole Coastal and Marine Science Center Sediment Laboratory using an Ohaus AX224 micro-balance. Determined loss-on-ignition (LOI) using method "Solids, volatile-on-ignition, suspended, gravimetric from Fishman and Friedman (1989). An ATI Cahn C-44 micro-balance was used to weigh the filters.

   Date: Oct-2019 (process 19 of 25)

   Seventh and final sample collection: collected 23 water samples using van Dorn water sampler in the Outer Channel and Herring River on 20191021 and 20191023. Process contact Steve Suttles.

   Date: Oct-2019 (process 20 of 25)

   Filtered water samples at USGS Woods Hole Coastal and Marine Science Center Sediment Laboratory using 47mm, 1.5 micron pore size, pre-weighed, pre-volatilized 934-AH glass fiber filters. Entire sample volume was filtered. If necessary, samples were split between two or more filters if solids load was too much for a single filter. Water samples were resuspended in bottle prior to pouring into filter funnel. A final rinse was made using deionized water to wash out dissolved salts from each filter.

   Date: Oct-2019 (process 21 of 25)

   Determined suspended-sediment concentration (SSC) in grams per liter using "Solids, residue at 105 C, suspended, gravimetric" method from Fishman and Friedman (1989). Laboratory analysis was conducted at USGS Woods Hole Coastal and Marine Science Center Sediment Laboratory using an Ohaus AX224 micro-balance. Determined loss-on-ignition (LOI) using method "Solids, volatile-on-ignition, suspended, gravimetric from Fishman and Friedman (1989). An ATI Cahn C-44 micro-balance was used to weigh the filters.

   Date: Oct-2021 (process 22 of 25)

   Used Microsoft Excel to compile all laboratory analysis of suspended-sediment concentration (SSC) and loss-on-ignition (LOI) from collected water samples. Data from samples split into two or more filters were combined. Added sample locations (latitude/longitude) to the compiled tabular results spreadsheet. Exported results spreadsheet to comma-separated values (csv) file format. Olivia De Meo is the contact for this process step and subsequent process steps until otherwise noted. Person who carried out this activity:
   

   Olivia A. De Meo

   U.S. Geological Survey

   Technical Information Specialist

   384 Woods Hole Road

   Woods Hole, MA
   

   US

   508-548-8700 x2356 (voice)

   (508) 457-2310 (FAX)

   odemeo@usgs.gov

   Date: Oct-2021 (process 23 of 25)

   The CSV file was imported into ArcMAP 10.8.1 and a shapefile (.shp) and associated files were saved.

   Date: Mar-2023 (process 24 of 25)

   The timestamp for sample 73 was changed in the CSV file and ArcMap shapefiles from 16:45 UTC to 15:45 UTC due to a typo in the original data file. The horizontal datum was also redefined (but not reprojected) from WGS84 to NAD83 to be consistent with the horizontal datums for the related releases (see cross-references). For the purpose of this work, the introduced error is negligible and within the error of the original Garmin GPSMAP 78sc handheld GPS measurements.

   Date: 24-Aug-2023 (process 25 of 25)

   Additional cross-reference was added to the metadata as well as updating the contacts for process steps. Person who carried out this activity:
   

   U.S. Geological Survey

   Attn: VeeAnn A. Cross

   Marine Geologist

   384 Woods Hole Rd.

   Woods Hole, MA
   

   USA

   (508) 548-8700 x2251 (voice)

   (508) 457-2310 (FAX)

   vatnipp@usgs.gov

3. What similar or related data should the user be aware of?
   Fishman, Marvin J., and Friedman, Linda C., 1989, Methods for determination of inorganic substances in water and fluvial sediments: Techniques of Water-Resources Investigations (TWRI) Book 5, Chapter A1, U.S. Geological Survey, Reston, VA.

   De, Olivia A. Meo, Suttles, Steve E., Ganju, Neil K., and Marsjanik, Eric D., 2023, Calibrating Optical Turbidity Measurements with Suspended-Sediment Concentrations from the Herring River in Wellfleet, Massachusetts, from November 2018 to November 2019: Data Report 1180, U.S. Geological Survey, Reston, VA.

   Online Links:

   • https://doi.org/10.3133/dr1180

   De, Olivia A. Meo, Suttles, Steven E., Ganju, Neil K., and Marsjanik, Eric D., 2023, Water quality data from a multiparameter sonde collected in the Herring River during November 2018 to November 2019 in Wellfleet, MA: data release DOI:10.5066/P9K3SCK, U.S. Geological Survey, Reston, VA.

   Online Links:

   • https://doi.org/10.5066/P9K3SCKY

   Suttles, Steven E., De, Olivia A. Meo, Ganju, Neil K., Bales, Robert D., and Marsjanik, Eric D., 2023, Time-series measurements of oceanographic and water quality data collected in the Herring River, Wellfleet, Massachusetts, USA, November 2018 to November 2019: data release DOI:10.5066/P95AE74D, U.S. Geological Survey, Reston, VA.

   Online Links:

   • https://doi.org/10.5066/P95AE74D
   • https://cmgds.marine.usgs.gov/data-releases/datarelease/10.5066-P95AE74D

   Other_Citation_Details:

   Suggested citation: Suttles, S.E., De Meo, O.A., Ganju, N.K.,Bales, R.D., and Marsjanik, E.D., 2023, Time-series measurements of oceanographic and water quality data collected in the Herring River, Wellfleet, Massachusetts, USA, November 2018 to November 2019: U.S. Geological Survey data release, https://doi.org/10.5066/P95AE74D.

How reliable are the data; what problems remain in the data set?

1. How well have the observations been checked?
   Laboratory analysis was conducted at USGS Woods Hole Coastal and Marine Science Center Sediment Laboratory using an Ohaus AX224 micro-balance with listed readability of 0.0001 grams, and repeatability of +or- 0.0001 grams. The difference between the first and second weighing was checked for stability and was within +or- 1%.
2. How accurate are the geographic locations?
   Horizontal position was determined using a Garmin GPSMAP 78sc handheld GPS. The expected absolute, horizontal accuracy is stated to be 3 to 5 m at the 95% confidence level using the WAAS setting. Additional sources of error in the position for the water sample locations are caused by the offset from the GPS and the exact location of the van Dorn water sampler at the time the sample was taken, which could be as large as 2 m; therefore overall expected accuracy of the reported horizontal position for these water sample locations is on the order of 7 m or better. The horizontal datum was redefined (but not reprojected) from WGS84 to NAD83 to be consistent with the horizontal datums for the related releases (see cross-references). For the purpose of this work, the introduced error is negligible and within the error of the original Garmin GPSMAP 78sc handheld GPS measurements.
3. How accurate are the heights or depths?
   Total water column depth values at each sample site were determined using a handheld depth sounder. Sample depths were determined by markings on the lowering line for the van Dorn sampler, and the samples were typically between 0.25 and 0.75 m above the seabed. Depths provided were taken from the water surface at time of sample, and were not referenced to a fixed datum. Expected accuracy of depth measurements is 0.3 m or better.
4. Where are the gaps in the data? What is missing?
   The dataset is considered complete for the information presented.
5. How consistent are the relationships among the observations, including topology?
   Water samples were collected using a van Dorn sampler and processed for suspended-sediment concentration (SSC) and loss-on-ignition (LOI) following USGS methods (Fishman and Friedman, 1989). Water samples were stored in a dark, refrigerated location and were filtered within one month of collection. The entire volume of each water sample was filtered to avoid sub-sampling errors. Deionized water was put through each filter as the last step of the filtration process to rinse dissolved salts from the filter. Standard laboratory protocols (Fishman and Friedman, 1989) were followed to ensure thorough drying and accurate weighing of the samples.

How can someone get a copy of the data set?

1. Who distributes the data set? (Distributor 1 of 1)
   
   U.S. Geological Survey - ScienceBase

   Denver Federal Center, Building 810, Mail Stop 302

   Denver, CO
   

   United States

   1-888-275-8747 (voice)

   sciencebase@usgs.gov
2. What's the catalog number I need to order this data set? This dataset contains laboratory analyses for suspended-sediment concentrations (SSC) and loss-on-ignition (LOI) of water samples collected from Herring River, Wellfleet, MA in 2017-18 (WellfleetWaterSamples.csv and WellfleetWaterSamples.shp).
3. What legal disclaimers am I supposed to read?
   Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
4. How can I download or order the data?
   • Availability in digital form:

     Data format:	Comma-separated values (CSV) file saved from Microsoft Excel for Office 365 (64-bit) using UTF-8 encoding. in format CSV Size: 0.01
     Network links:	https://www.sciencebase.gov/catalog/file/get/6227bcced34ee0c6b38b8003 https://www.sciencebase.gov/catalog/item/6227bcced34ee0c6b38b8003 https://doi.org/10.5066/P9ZL2IPN

     Data format:	Esri shapefile (.shp) and associated files created by importing the CSV file into ArcGIS. The attribute headers include up to the first 10 characters from the csv file header labels. in format SHP Size: 0.07
     Network links:	https://www.sciencebase.gov/catalog/file/get/6227bcced34ee0c6b38b8003 https://www.sciencebase.gov/catalog/item/6227bcced34ee0c6b38b8003 https://doi.org/10.5066/P9ZL2IPN

   • Cost to order the data: None

Who wrote the metadata?

Dates:

Last modified: 24-Aug-2023

Metadata author:

Olivia A. De Meo

U.S. Geological Survey

Technical Information Specialist

384 Woods Hole Road

Woods Hole, MA

US

508-548-8700 x2356 (voice)

508-457-2310 (FAX)

odemeo@usgs.gov

Metadata standard:

FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)