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:MON-PR-RT1AWatLevel2000.01
Dataset Title:Measurements of water column depth at 15 minute intervals in the Parker River near Rt 1A bridge, year 2000. Water depths are relative to the sonde pressure transducer and not associated with a datum.
Investigator 1: 
First Name:Charles
Last Name:Hopkinson
Address line 1:Ecosystems Center
Address line 2:MBL
Address line 3:7 MBL St
City:Woods Hole
Zip Code:02543
Associate Investigators:Hap Garritt
Keywords:PIE LTER; disturbance; tide, water level, depth, Parker River, Route 1A, Newbury, Massachusetts
Abstract:15 minute readings of water column depth in the lower Parker River Estuary at Rt. 1A. Water depths are relative to the sonde pressure transducer and not associated with a datum.
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 MON-PR-RT1AWatLevel2000
Beginning Date 4/24/2000
End Date 11/21/2000
Number of Data Records 18978
Other Files to Reference
Availability Status Type 1
Quality Control Information
Maintenance Description
Log of Changes: Version 01, metadata entry using Excel template, depth not relative to NAVD88 yet
Geographic Description Parker River, Fernalds Marina off Rt. 1A, Newbury, Massachusetts  
Location Bounding Box    
West Bounding Coordinate    
East Bounding Coordinate    
North Bounding Coordinate    
South Bounding Coordinate    
OR if single point location    
Latitude 40.761744  
Longitude -70.846989  
Taxonomic Protocols
Organisms studied
Methods:Measurements are made using a YSI 6600 water quality sonde and YSI 6200 Data Collection Platform (DCP) with data radio telemetered to the PIE LTER Rowley field station. YSI Sonde water level sensor consists of a vented level depth sensor (stainless steel strain gauge). For deployment of the sonde, a Schedule 40, four inch diameter PVC pipe was attached vertically to a piling off the bulkhead off Fernalds Marina on the Parker River. The pipe extended to the Parker River water column and the sonde was lowered into the pipe until it rested on a bolt which had been screwed through the pipe near the base/bottom of the pipe. The pipe was removed each Winter due to ice rafting and reinstalled each Spring once the ice had moved out. Each Spring the pipe was reinstalled in approximately the same vertical space with the intention of relating the relative water level measurements to a datum such as NAVD88.

Data Table

Variable Name Variable Description Units Measurement Scale Code Information Number Type DateTime Format Missing Value Code Missing Value Code Explanation
Date Date of sampling   datetime     dd-mmm-yyyy   blank cell
Time Time of sampling, 24 hr clock (eastern standard time EST)   datetime     hh:mm:ss   blank cell
Station Name of sampling station   nominal         blank cell
Depth Water column depth above sonde pressure transducer meter ratio   real     blank cell
Comments Comments about specific data   nominal         blank cell