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.
The dataset is considered complete for the information presented.
Process_Step:
Process_Description:
First sample collection: collected two water samples using van Dorn water sampler in the Outer Channel and the Herring River on 20181112 and 20181115.
Process_Date: 201811
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Steven E Suttles
Contact_Organization: U.S. Geological Survey, Northeast Region
Contact_Position: Mechanical Engineer
Contact_Address:
Address_Type: mailing address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: US
Contact_Voice_Telephone: 508-458-8700
Contact_Electronic_Mail_Address: 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.
Process_Step:
Process_Description:
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.
Process_Date: 201811
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: WHCMSC Sediment Laboratory Manager
Contact_Position: Lab Manager
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: (508) 548-8700 x2277
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: gs-wh_sedlab@usgs.gov
Process_Step:
Process_Description:
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.
Process_Date: 201811
Process_Step:
Process_Description:
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.
Process_Date: 201902
Process_Step:
Process_Description:
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.
Process_Date: 201902
Process_Step:
Process_Description:
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.
Process_Date: 201902
Process_Step:
Process_Description:
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.
Process_Date: 201905
Process_Step:
Process_Description:
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.
Process_Date: 201906
Process_Step:
Process_Description:
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.
Process_Date: 201906
Process_Step:
Process_Description:
Fourth sample collection: collected 24 water samples using van Dorn water sampler in the Herring River on 20190725. Process contact Steve Suttles.
Process_Date: 201907
Process_Step:
Process_Description:
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.
Process_Date: 201907
Process_Step:
Process_Description:
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.
Process_Date: 201907
Process_Step:
Process_Description:
Fifth sample collection: Collected 20 water samples using van Dorn water sampler in the Outer Channel on 20190807. Process contact Steve Suttles.
Process_Date: 201908
Process_Step:
Process_Description:
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.
Process_Date: 201908
Process_Step:
Process_Description:
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.
Process_Date: 201908
Process_Step:
Process_Description:
Sixth sample collection: collected one water sample using van Dorn water sampler in the Flank Deep on 20190919. Process contact Steve Suttles.
Process_Date: 201909
Process_Step:
Process_Description:
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.
Process_Date: 201910
Process_Step:
Process_Description:
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.
Process_Date: 201910
Process_Step:
Process_Description:
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.
Process_Date: 201910
Process_Step:
Process_Description:
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.
Process_Date: 201910
Process_Step:
Process_Description:
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.
Process_Date: 201910
Process_Step:
Process_Description:
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.
Process_Date: 202110
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Olivia A. De Meo
Contact_Organization: U.S. Geological Survey
Contact_Position: Technical Information Specialist
Contact_Address:
Address_Type: mailing address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: US
Contact_Voice_Telephone: 508-548-8700 x2356
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: odemeo@usgs.gov
Process_Step:
Process_Description:
The CSV file was imported into ArcMAP 10.8.1 and a shapefile (.shp) and associated files were saved.
Process_Date: 202110
Process_Step:
Process_Description:
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.
Process_Date: 202303
Process_Step:
Process_Description:
Additional cross-reference was added to the metadata as well as updating the contacts for process steps.
Process_Date: 20230824
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: (508) 548-8700 x2251
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov