uid=PIE,o=EDI,dc=edirepository,dc=org all public read MON-SO-IBYCYSI2017 PIE LTER, Year 2017, 15 minute interval, water quality measurements of water column temperature, salinity, oxygen, and depth near the mouth of Plum Island Sound, Massachusetts Nathaniel Weston Villanova University (610) 519-8009 nathaniel.weston@villanova.edu http://nweston.org/ http://orcid.org/0000-0002-6837-360X Plum Island Ecosystems LTER http://pie-lter.ecosystems.mbl.edu/ Plum Island Ecosystems LTER http://pie-lter.ecosystems.mbl.edu/ Hap Garritt (508) 289-7485 (508) 457-1548 hgarritt@mbl.edu http://orcid.org/0000-0001-5912-0769 associated researcher 2018 English
Year 2017, 15 minute measurements of water column temperature, salinity, oxygen and depth in Plum Island Sound at the Ipswich Bay Yacht Club, Ipswich, MA.
Primary Production Organic Matter Disturbance Core Areas Plum Island Sound primary production disturbance monitoring saturation oxygen gases salinity depth conductivity temperature conductivity PIE LTER Plum Island Ecosystems LTER Controlled Vocabulary
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https://pie-lter.ecosystems.mbl.edu/content/pie-lter-year-2017-15-minute-interval-water-quality-measurements-water-column-temperature PIE YSI water quality, OTT RLS water level and wind sensor station at Ipswich Bay Yacht Club pier, Plum Island Sound, Ipswich, MA -70.796577453613 -70.796577453613 42.708995819092 42.708995819092 2017-05-02 2017-11-06 Measurements complete for 2017 Version 01: February 2, 2018, data and metadata created to comply with importation to Drupal and LTER PASTA. Used MarcrosExportEML_HTML (working)pie_excel2007_Jan2018.xlsm 1/30/2018 2:24 PM for QA/QC to EML 2.1.0 Plum Island Ecosystems LTER http://pie-lter.ecosystems.mbl.edu/ Plum Island Ecosystems LTER http://pie-lter.ecosystems.mbl.edu/ Plum Island Ecosystems
Measurements are made using a YSI 6600 water quality  datalogging sonde. YSI Sonde sensors consist of 6150  optical dissolved oxygen probe , 6560 conductivity/temperature probe (thermistor) and non-vented level depth sensor (stainless steel strain gauge). Missing data or blank values are caused by maintenance time periods or where sensor measurements are obviously wrong in the context of what would be expected. For example, the conductivity sensor has a relatively small opening and chamber for the conductivity electrodes, the estuary can have varying suspended sediment/detrital loads moving in the water column which enter the conductivity cell shorting out the electrodes making a faulty conductivity measurement (lower than expected). Oxygen measurements are dependent upon the conductivity measurements so the oxygen also becomes erroneous. Obvious measurements/data errors have been removed from the data set however the user of this data should also conduct their own data analysis to determine if the data are suitable for their particular situation. Typical sensor/data problems are: For oxygen: Poor/inaccurate conductivity measurements will affect the dissolved oxygen accuracy For conductivity: Conductivity cell can have detrital material stuck in it, shorting out cell, resulting in lower than expected conductivity. For depth: Depth strain gage pressure sensor may come out of the water at low tides resulting in many "zero" depth readings or sometimes negative values. Depths are not corrected for atmospheric pressure changes. YSI Dissolved oxygen % saturation reporting can vary depending upon how the  oxygen is calibrated. For this data set two Oxygen percent saturation values are reported. ODO%YSI variable name represents  a YSI calibration in air, from Standard Methods, refers to calibration at a particular ATM pressure which allows DO% for calibration to fluctuate above/below 100% when ATM is above/below reference 760 or 1 ATM ODO%Local variable name represents an oxygen calibration  in air at a particular ATM pressure but it forces the DO% to be 100%, does not allow it to be under or above if ATM is above/below 760. ODO%Local data should be used for metabolism studies when correcting for diffusion based on gradient deviations from 100% which by definition is the % saturation of oxygen in air. ODO%YSI should not be used since it would require a known ATM pressure at each interval to calculate the ATM % saturation of oxygen to be use for that interval, probably a small correction anyway. Concentration of DO remains the same for either calibration. A Campbell CR1000 is logging the data and we use radio telemetry to a base station in Rowley for streaming the data and downloading to a computer. May 3, 2017 to June 7, 2017 there were electronic problems with the conductivity/temperature probe, values exceedingly high, 80C. Corresponding data that relied on accurate temperature values were invalid during this time frame. A new  conductivity/temperature probe was installed and readings returned to acceptable values.
Plum Island Ecosystems Long Term Ecological Research (PIE LTER IV, 2016-2022) Anne Giblin Marine Biological Laboratory (508) 289-7488 (508) 457-1548 agiblin@mbl.edu http://orcid.org/0000-0003-3851-2178 principalInvestigator Wilfred Wollheim University of New Hampshire (603) 862-5022 Wil.Wollheim@unh.edu http://orcid.org/0000-0002-5009-3212 principalInvestigator Jim Morris University of South Carolina 803-777-3948 morris@inlet.geol.sc.edu http://research.cas.sc.edu/morris/ https://orcid.org/0000-0002-0511-642X principalInvestigator Nathaniel Weston Villanova University (610) 519-8009 nathaniel.weston@villanova.edu http://nweston.org/ http://orcid.org/0000-0002-6837-360X principalInvestigator Linda Deegan Woodwell Climate Research Center 508-444-1557 ldeegan@woodwellclimate.org http://orcid.org/0000-0002-1017-9599 principalInvestigator Joe Vallino Marine Biological Laboratory (508) 289-7648 (508) 457-1548 jvallino@mbl.edu http://orcid.org/0000-0002-4184-4512 principalInvestigator Robert Pontius Clark University (508) 793-7761 (508) 793-8881 rpontius@clarku.edu http://www2.clarku.edu/~rpontius/ http://orcid.org/0000-0001-7287-5875 principalInvestigator Jarrett Byrnes University of Massachusetts Boston (617) 287-3145 Jarrett.Byrnes@umb.edu http://byrneslab.net/ http://orcid.org/0000-0002-9791-9472 principalInvestigator The Plum Island Ecosystems (PIE) LTER is developing a predictive understanding of the response of a linked watershed-marsh-estuarine system in northeastern Massachusetts to rapid environmental change. Over the last 30 years, surface sea water temperatures in the adjacent Gulf of Maine have risen at 3 times the global average, rates of sea-level rise have accelerated, and precipitation has increased. Coupled with these changes in climate and sea level are substantial changes within the rapidly urbanizing watersheds that influence water, sediment, and nutrient delivery to the marsh and estuary. In PIE IV our focus is on: Dynamics of coastal ecosystems in a region of rapid climate change, sea-level rise, and human impacts. NSF OCE LTER-Plum Island Ecosystems: Dynamics of coastal ecosystems in a region of rapid climate change, sea-level rise, and human impacts. 1637630 MON-SO-IBYCYSI2017_csv Year 2017, 15 minute interval, water quality measurements of water column temperature, salinity, oxygen, and depth near the mouth of Plum Island Sound, Massachusetts MON-SO-IBYCYSI2017.csv 1052688 09c488b8e0cfe25fa5dee5d75bf3b242 ef6ced17800d81cd405537786aae4b8ccad0796a 1 \r\n column , https://pie-lter.ecosystems.mbl.edu/sites/default/files/data/MON-SO-IBYCYSI2017.csv Date Date Date of sampling (YYYY-MM-DD) date YYYY-MM-DD Time Time Time of sampling (eastern standard time EST, 24 hour) date hh:mm Station Station Name of sampling station string Name of sampling station Temp Temp Temperature of water celsius real NA data not available SpCond SpCond Specific conductivity of water millisiemenPerCentimeter real NA data not available Cond Cond Conductivity of water millisiemenPerCentimeter real NA data not available Salinity Salinity Salinity of water partPerThousand real NA missing ODO%YSI ODO%YSI Percent dissolved oxygen saturation of water percent real NA data not available ODO%Local ODO%Local Percent dissolved oxygen saturation of water percent real NA data not available ODO Conc ODO Conc Dissolved oxygen concentration of water milligramPerLiter real NA data not available Depth Depth Water column depth above sonde pressure transducer meter real NA data not available Comments Comments Comments about specific data string Comments about specific data 14655 MON-SO-IBYCYSI2017_xls Excel metadata and data file associated with the csv data source file. Excel file after downloading is to be used for adding/editing new metadata and data. MON-SO-IBYCYSI2017.xls 2466304 e3f17344d1881e78261fda4a31c2e359 240a63eb4edb58d1da96a7e6ad357e38ba40dd99 application/vnd.ms-excel https://pie-lter.ecosystems.mbl.edu/sites/default/files/data/MON-SO-IBYCYSI2017.xls document
A common unit of temperature millisiemen per centimeter, electrolytic conductivity of a solution ratio of two quantities as percent composition (1:100) milligrams / liter SI unit of length