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:WAT-IP-IpswichDischarge01102000.03
Dataset Title:Ipswich River daily discharge, Ipswich, MA
Investigator 1: 
First Name:Wil
Last Name:Wollheim
Address line 1:Institute for the Study of Earth, Oceans, and Space
Address line 2:University of New Hampshire
Address line 3:8 College Rd.
City:Durham
State:NH
Zip Code:03824
Country:USA
Associate Investigators:Hap Garritt, Catherine Caruso
Keywords:PIE LTER, Plum Island Ecosystems, Massachusetts, Ipswich River, disturbance, discharge, stream, flow, river
Abstract:USGS gauged discharge from the Ipswich River near Ipswich (01102000), draining 317.56 km2 of watershed.
Contact: Plum Island Ecosystems LTER Information Manager
The Ecosystems Center
Marine Biological Lab
7 MBL St
Woods Hole, MA 02543
Phone (508) 289 7485
Email: pie_im@mbl.edu
Online URL: http://ecosystems.mbl.edu/PIE/
DATA FILE INFORMATION:
Data File URL http://ecosystems.mbl.edu/PIE/data/WAT/data/WAT-IP-IpswichDischarge01102000.csv
Data File Name WAT-IP-IpswichDischarge01102000
Beginning Date 6/17/1930
End Date 1/8/2012
Number of Data Records 29792
Other Files to Reference
Availability Status Type 1
Quality Control Information
Maintenance Description Data is downloaded from USGS web site, approximately annually
Log of Changes: Version 01; EML metadata compiled in Excel
Version 02; data update, 27-Jan-2011
Version 03: January 31, 2012, updated data and metadata. Used MarcrosExportEML_HTML (working)pie_excel2007.xlsm 1/27/12 4:35 PM for QA/QC to EML 2.1.0
 
RESEARCH LOCATION: WAT-IP-Ipswich-USGS Site 2
Geographic Description Ipswich River near Ipswich, MA; on left bank 200 ft downstream from Willowdale Dam, 1.5 mi downstream from Howlett Brook, and 4 mi upstream from Ipswich.  
Location Bounding Box    
West Bounding Coordinate    
East Bounding Coordinate    
North Bounding Coordinate    
South Bounding Coordinate    
OR if single point location    
Latitude 42.5694  
Longitude -71.0275  
Elevation    
     
     
 
TAXONOMIC COVERAGE:
Taxonomic Protocols
Organisms studied
 
Methods:Data was downloaded from USGS web site:
http://waterdata.usgs.gov/ma/nwis/uv?dd_cd=01&dd_cd=03&dd_cd=19&format=gif&period=7&site_no=01102000

# ---------------------------------- WARNING ----------------------------------------
# The data you have obtained from this automated U.S. Geological Survey database
# have not received Director's approval and as such are provisional and subject to
# revision. The data are released on the condition that neither the USGS nor the
# United States Government may be held liable for any damages resulting from its use.
# Additional info: http://waterdata.usgs.gov/ma/nwis/help/?provisional
#
# File-format description: http://waterdata.usgs.gov/nwis/?tab_delimited_format_info
# Automated-retrieval info: http://waterdata.usgs.gov/nwis/?automated_retrieval_info
#
# Contact: gs-w_support_nwisweb@usgs.gov


LOCATION--Lat 42°39’35", long 70°53’39", Essex County, Hydrologic Unit 01090001, on left bank 200 ft downstream from Willowdale Dam, 1.5 mi downstream from Howlett Brook, and 4 mi upstream from Ipswich.
DRAINAGE AREA--125 mi2.
PERIOD OF RECORD--Discharge: June 1930 to current year.
Water-quality records: Water years 1954, 1976–79.
REVISED RECORDS--WSP 1621: 1930–58 (monthly runoff). WDR MA-RI-84-1: drainage area.
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 20.63 ft above National Geodetic Vertical Datum of 1929.
REMARKS--Diversions upstream for municipal supply of Reading, Lynn, Peabody, Danvers, Salem, and Beverly. Occasional regulation by dams and reservoirs upstream.
COOPERATION BY--Massachusetts Department of Environmental Protection, Division of Watershed Management. Massachusetts Department of Conservation and Recreation



CALCULATIONS:
Published data from USGS is in ft3 sec-1. We have converted this to m3 sec-1 by multiplying the data by the following conversion factor: 1ft3 = 0.0283168 m3

Data Table

Variable Name Variable Description Units Measurement Scale Code Information Number Type DateTime Format Missing Value Code Missing Value Code Explanation
Date date (dd-mmm-yyyy)   datetime     dd-mmm-yyyy   blank cell
Q metric discharge (cubic meters per second) meterCubedPerSecond ratio   real     blank cell
Q english discharge (cubic feet per second) footCubedPerSecond ratio   real     blank cell
Flag data value qualification code   nominal Eqp = Equipment malfunction | A = Approved for publication Processing and review completed | P = Provisional data subject to revision | e = Value has been estimated       blank cell