WAT-VA-Rainfall.01 Charles Hopkinson

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/ Ed Rastetter additional investigator Joe Vallino additional investigator Michael Williams additional investigator Solange Filoso additional investigator Jeff Evans additional investigator 2002 Solute data of wet deposition for the Ipswich River basin. Samples were collected on an event basis when possible, and otherwise collected on a weekly basis. Samplings are from May 2000 to June 2001, and were collected and analyzed by MBL. PIE LTER inorganic nutrients Ipswich Massachusetts ammonium base cations chloride dissolved hydrogen ion nitrate nitrogen nutrient organic phosphate pH phosphorus sulfate total 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-VA-Rainfall.html Ipswich River Wildlife Sanctuary -70.920144 -70.920144 42.631645 42.631645 GDA weather station -70.9024065 -70.9024065 42.75148419 42.75148419 2000-05-18 2001-06-22 Ver 01, Excel EML upgrade 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/ Event and cumulative atmospheric wet deposition on a weekly to biweekly basis from an open field at a wildlife refuge for one year (May 2000 through April 2001). Deposition was collected with an Aerochem Metrics precipitation collector. A total of 42 wet events and cumulative deposition (i.e., multiple storms combined) samples were collected and analyzed for N fractions as described below. Wet deposition in this study was filtered immediately upon collection using 47 mm Nuclepore polycarbonate filters (0.4 mm) held in plastic filter holders, and filtered with 120 cc syringes under manual pressure. No deposition samples were frozen prior to analysis. Ammonium, NO3 (NO2 + NO3), total dissolved N (TDN), and particulate N (PN) were determined using standard colorometric methods. Ammonium was determined using an indophenol method. Nitrate was usually analyzed colorimetrically following cadmium reduction on a Lachat autoanalyzer. Concentrations of NO2 were determined to be negligible (<0.2 mM) and, therefore samples were also run on a Dionex ion chromatograph (model 2010i) from May 2000 through June 2001 to determine NO3, SO4, and Cl. Nitrate concentrationsdetermined by the two methods were not significantly different (t test, p < 0.01). Persulfate oxidation followed by NO3 analysis was done to quantify total dissolvednitrogen (TDN) using the method of Valderrama [1981]. Dissolved organic nitrogen (DON) was calculated as the difference between TDN and DIN (NH4+NO2+NO3). 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-VA-rainfall.dat Solute data of wet deposition for the Ipswich River basin from May 2000 to June 2001 WAT-VA-rainfall.dat 1 column , http://ecosystems.mbl.edu/PIE/data/WAT/data/WAT-VA-rainfall.dat Start date Start date Start date of collection dd-mmm-yyyy End date End date End date of collection dd-mmm-yyyy Sample site Sample site Location where samples were taken Location where samples were taken Volume Volume Volume collected liter real Depth Depth Depth in Aerochem collector millimeter real Duration Duration Indicates sampling for an "event" vs "cumulative" Indicates sampling for an "event" vs "cumulative" pH pH negative logarithm of the hydrogen ion concentration of an aqueous solution dimensionless real H H Hydrogen ion concentration as H microMolesPerLiter real NO3 NO3 nitrate + nitrite concentration as N microMolesPerLiter real NH4 NH4 ammonium concentration as N microMolesPerLiter real DIN DIN dissolved inorganic nitrogen concentration as N microMolesPerLiter real TDN TDN total dissolved nitrogen concentration as N microMolesPerLiter real DON DON dissolved organic nitrogen concentration as N microMolesPerLiter real PO4 PO4 soluble reactive phosphorus concentration as P microMolesPerLiter real TDP TDP total dissolved phosphorus concentration as P microMolesPerLiter real Cl Cl chloride concentration as Cl microMolesPerLiter real SO4 SO4 sulfate concentration as S microMolesPerLiter real Ca Ca calcium concentration as Ca microMolesPerLiter real Mg Mg magnesium concentration as Mg microMolesPerLiter real K K potassium concentration as K microMolesPerLiter real Na Na sodium concentration as Na microMolesPerLiter real COMMENTS COMMENTS additional information pertaining to individual samples additional information pertaining to individual samples µM = µmoles per liter of solution