WAT-YSI-UpperIps-2003.02 Charles Vorosmarty

Ecosystems Center MBL 7 MBL St Woods Hole MA 02543 USA

Plum Island Ecosystems LTER Program

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7485 pie_im@mbl.edu http://ecosystems.mbl.edu/PIE/ Wilfred Wollheim additional investigator Brian Pellerin additional investigator 2004 Continuous measurements, every 15 minutes, were made of stage, water temperature, conductivity, dissolved oxygen, and pH in a small headwater stream draining a moderate sized, mixed land use watershed. Measurements are for part of the ice free season (March – December). No Discharge was determined because beaver activity prevented rating curve estimate. Several day gaps occur periodically due to removal for recalibration. PIE LTER disturbance Ipswich River discharge water temperature water stage conductivity pH dissolved oxygen Acceptance and utilization of PIE-LTER data requires that: The Principal Investigator be sent a notice stating reasons for acquiring any data and a description of the publication intentions. 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 A copy of any resultant publications should be sent to: Principal Investigator Ecosystems Center Marine Biological Laboratory Woods Hole, MA 02543 http://ecosystems.mbl.edu/PIE/data/WAT/WAT-YSI-UpperIps-2003.html YSI-IR 2003-05-03 2003-12-23 Version 01, 30 Oct 2007 updated metadata to EML level 3+ Version 02, 21Jan2010 keyword update Data Manager

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7485 pie_im@mbl.edu http://ecosystems.mbl.edu/PIE/ Plum Island Ecosystems LTER

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7485 pie_im@mbl.edu http://ecosystems.mbl.edu/PIE/ YSI 6200 data sondes were deployed vertically in a pool deep enough to contain water during dry conditions. The sonde was deployed in a PVC tube, which was attached to ree-bar driven into the stream bed. The PVC tube had holes drilled to allow adequate water circulation. Dissolved oxygen measurements are of good quality because detritus did not accumulate in the bottom of the pool (unlike our suburban site). The PVC tube was surveyed upon original deployment in 2001 and resurveyed in 2002 to ensure that elevation did not change during winter ice period. No change was detected. No discharge-stage relationship could be determined. Recalibration was performed roughly every 4-6 weeks. Instrument drift during deployment periods was not significant. RESEARCH LOCATION: Locations are in Massachusetts State Plane coordinates. The site is located on the Ipswich R. mainstem at North Reading, just upstream of Rt. 28 (~48 km2 drainage area). The contributing area includes a large component of urban land use, but with significant wetland area remaining, especially in floodplain. Large amounts of water withdrawals occur upstream. STATION STATE X STATE Y YSI-IR 232080 923630 NOTES AND COMMENTS: No Discharge-Stage relationship could be determined Dissolved oxygen concentrations reflect water column levels. NA refers to data not available. CALCULATIONS: Ipswich rating curve in 2001 : NA Anne Giblin

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7488 agiblin@mbl.edu Lead PI Hap Garritt

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7485 pie_im@mbl.edu Information Manager The Plum Island Ecosystems (PIE) LTER is an integrated research, education and outreach program whose goal is to develop a predictive understanding of the long-term response of watershed and estuarine ecosystems at the land-sea interface to changes in climate, land use and sea level. The principal study site is the Plum Island Sound estuary, its coupled Parker, Rowley and Ipswich River watersheds and the adjacent coastal ocean, the Gulf of Maine. The PIE LTER focuses on how several aspects of global change influence organic matter and inorganic nutrient biogeochemistry and estuarine foodwebs. The inputs of organic matter and nutrients from land, ocean and marshes interact with the external drivers (climate, land use, river discharge, sea level) to dictate the extent and degree of nutrient and organic matter processing and determine the spatial patterns of estuarine productivity and trophic structure. This material is based upon work supported by the National Science Foundation under Grants OCE-9726921, OCE-0423565. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. The Plum Island Ecosystems (PIE) LTER site, is located in northeastern Massachusetts, 42.72 N, 70.85 W. The PIE LTER lies at the interface of a thinly soiled, formerly glaciated New England land mass and the highly productive Gulf of Maine. Three watersheds comprise the estuarine drainage basin: Parker (155 km2), Rowley (26 km2) and Ipswich (404 km2). The Ipswich River watershed is highly urbanized with Boston "bedroom" communities encroaching in the headwater region while the Parker is less urbanized and retains a higher proportion of forest. -71.2198 -70.7568 42.8276 42.4965 0 100 meter uid=PIE,o=lter,dc=ecoinformatics,dc=org all public read WAT-YSI-UpperIps-2003.dat Year 2003, 15 minute measurements of stage, water temperature, conductivity, dissolved oxygen, and pH on the Ipswich R. mainstem at North Reading, just upstream of Rt. 28 (~48 km2 drainage area). WAT-YSI-UpperIps-2003.dat 1 column , http://ecosystems.mbl.edu/PIE/data/WAT/data/WAT-YSI-UpperIps-2003.dat Date Date date (yyyy-mm-dd) yyyy-mm-dd Time Time time (hh:mm:ss) 24 hour hh:mm:ss Temp Temp water temperature (oC) celsius real SpCond SpCond specific conductivity (mS/cm) millisiemensPerCentimeter real DO% DO% dissolved oxygen percent of saturation (%) percent real DOConc DOConc dissolved oxygen concentration (mg/l) milligramsPerLiter real Depth Depth stage height (m) meter real pH pH log of the H+ ion concentration dimensionless real Flow Flow discharge (l/s) litersPerSecond real conductivity unit ratio of two quantities as percent composition (1:100)