Plum Island Ecosystems LTER Database

Acceptance and utilization of LTER data requires that:

(1) The Principal Investigator be sent a notice stating reasons for acquiring any data and a description of the publication intentions.
(2) The Principal Investigator of the data set be sent a copy of the report or manuscript prior to submission and be adequately cited in any resultant publications.
(3) A copy of any resultant publications should be sent to:

Principal Investigator
Ecosystems Center
Marine Biological Laboratory
7 MBL St.
Woods Hole, MA 02543

Dataset URLs:METADATA: HTML, Rich Text, XML(EML compliant)
DATA: Comma Delimited, Excel file with Metadata and data
Dataset ID:PHY-PR-DYE-1993-1996.01
Dataset Title:Rhodamine dye concentration transects (distances in meters from Parker River Dam) measured at various high tides from 1993 to 1996.
Investigator 1: 
First Name:Chuck
Last Name:Hopkinson
Address line 1:Georgia Sea Grant
Address line 2:University of Georgia
Address line 3:229 Marine Sciences
Zip Code:30602
Associate Investigators:Joseph Vallino, Robert Garritt, Anne Giblin, Jane Tucker, Steve Carini, Nathaniel Weston
Keywords:PIE LTER, Parker River, advection, dispersion, exchange, dye, transect, rhodamine
Abstract:Rhodamine dye concentration transects (distances in meters from Parker River Dam) measured at high tide. Tidal cycle 1 is first high tide after addition of the dye.
Contact: Plum Island Ecosystems LTER Information Manager
The Ecosystems Center
Marine Biological Lab
7 MBL St
Woods Hole, MA 02543
Phone (508) 289 7485
Online URL:
Data File URL
Data File Name PHY-PR-DYE-1993-1996
Beginning Date 8/4/1993
End Date 6/24/1996
Number of Data Records 277
Other Files to Reference
Availability Status Type 1
Quality Control Information
Maintenance Description
Log of Changes: Version 01: February 28, 2012, updated data and metadata. Used MarcrosExportEML_HTML (working)pie_excel2007.xlsm 2/28/12 8:18 PM for QA/QC to EML 2.1.0
Geographic Description PIE LTER research site including watersheds and estuary, Essex County, MA  
Location Bounding Box    
West Bounding Coordinate -71.22  
East Bounding Coordinate -70.75  
North Bounding Coordinate 42.83  
South Bounding Coordinate 42.5  
OR if single point location    
Taxonomic Protocols
Organisms studied
Methods:Rhodamine dye was added to the Parker River Plum Island Sound Estuary on three dates: 8/4/93, 4/10/95, and 6/25/96. 1.6, 7.7, and 7.7 l of dye was added, respectively, to the estuary about 1.7 km from the dam during high tide. The dye was allowed to mix for one tidal cycle before measurement. All transects were conducted during high tide unless otherwise noted using a flourometer mounted on a boat.

Data Table

Variable Name Variable Description Units Measurement Scale Code Information Number Type DateTime Format Missing Value Code Missing Value Code Explanation
DATE ADDED date dye was added (dd-mmm-yyyy)   datetime     dd-mmm-yyyy   blank cell
TIDE tidal cycle from addition [addition is tidal cycle 0; each numeral is one high tide cycle; decimals denote sampling not on high tide (i.e., 5.5 is on the low tide after the fifth high tide from addition)]   nominal         blank cell
DIST distance from Parker Dam (m) meter ratio   real     blank cell
DYE dye concentration (ppb by volume) partPerBillion ratio   real     blank cell