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-SO-IBYCWatLevel2004.01
Dataset Title:Measurements of water column depth at 15 minute intervals in the lower Plum Island Sound off the Ipswich Bay Yacht Club pier, year 2004. Water depths are relative to the sonde pressure transducer and not associated with a datum.
Investigator 1: 
First Name:Joe
Last Name:Vallino
Address line 1:Ecosystems Center
Address line 2:MBL
Address line 3:7 MBLSt
City:Woods Hole
Zip Code:02543
Associate Investigators:Hap Garritt
Keywords:PIE LTER; disturbance; tide, water level, depth, Plum Island Sound, Ipswich Bay Yacht Club, Ipswich, Massachusetts
Abstract:Measurements of water column depth at 15 minute intervals in Plum Island Sound at the Ipswich Bay Yacht Club, year 2004. 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-SO-IBYCWatLevel2004
Beginning Date 4/1/2004
End Date 12/7/2004
Number of Data Records 24039
Other Files to Reference
Availability Status Type 1
Quality Control Information
Maintenance Description
Log of Changes: Version 01: January 24, 2012, updated data and metadata. Used MarcrosExportEML_HTML (working)pie_excel2007.xlsm 1/18/12 4:51 PM for QA/QC to EML 2.1.0
Geographic Description Near mouth of Plum Island Sound, on Ipswich Bay Yacht Club pier, Ipswich, Massachusetts.  
Location Bounding Box    
West Bounding Coordinate    
East Bounding Coordinate    
North Bounding Coordinate    
South Bounding Coordinate    
OR if single point location    
Latitude 42.708995  
Longitude -70.796577  
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 below the Ipswich Bay Yacht Club pier. The pipe extended to the Plum Isalnd Souind 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 typically 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