MAR-PR-Wtable-RR-2007.02 Anne Giblin

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/ Christina Maki additional investigator Colin Millar additional investigator 2009 Readings of water table height, taken every 10 minutes, by a transect of water level loggers running perpendicular to the Parker River bank at Site RR for April-December 2007. PIE LTER Plum Island Ecosystems Massachusetts Parker River disturbance estuary Spartina water table porewater marsh elevation 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/MAR/MAR-PR-Wtable-RR-2007.html Lower Parker river, down-stream of railroad bridge, Spartina-dominated marsh edge, river kilometer is PR-12.75 -70.8587591611111 -70.8587591611111 42.7614769944444 42.7614769944444 2007-04-28 2007-12-05 Genus Spartina Species alterniflora Genus Spartina Species patens no new data for 2007, collection done Version 01; new data and metadata Version 02; corrected time stamp to ensure EST consistency throughout data set, 11Jan2010 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/ A transect of wells is established on the marsh platform, perpendicular to the marsh edge. A total of 5 wells are dug to the depth of the water table under the marsh platform. Wells 1-4 are spaced approximately evenly within the first 6m of marsh edge with well 5 approximately 20m upland from the marsh edge. A water level logger, referred to as the tide gauge, (Onset HOBO U20 series) is placed at the river bottom directly in front of the transect . Individual water level loggers (Onset HOBO U20 series) are used in each well and they measure water height in terms of absolute pressure. Barometric pressure is measured above ground with an additional Onset HOBO U20 series water level logger to tease out the atmospheric pressure from water column pressure. Prior to deployment, each water level logger is sealed in protective plastic whirl-pak bags filled with freshwater, and calibrated to known water depths. Once in the field, water height measurements, in terms of absolute pressure, are recorded every 10 minutes. Pressure readings are uploaded from the HOBO water level loggers using HOBOware software which compensates for temperature, fluid density, and barometric pressure, then are converted to absolute water height above the river bottom. Data is QA/QC'd to ensure that the loggers report the same flood water elevation on the marsh surface. The surface elevation of the marsh as measured by the marsh water level loggers must match that of the gps'd surface elevation. Any corrections made to a particular logger data field (logger # Dc (m)) are reported in the Offset corr field (Offset corr logger # (m)). Well Location Information: Logger Well Height of Marsh Surface Above Creek Bottom (m) Horizontal Distance Upland of Creek Edge (m) 1 (tide gauge) 0 -10.68 2 1 3.04 0.57 3 2 3.20 1.62 4 3 3.25 3.06 5 4 3.31 5.15 6 5 3.32 19.82 Logger 1 tide gauge located on river bottom. Marsh wells 1-5, numbered consecutively moving upland. NOTES AND COMMENTS: Due to occasional equipment malfunction, readings are not continuous throughout the field season. Times in EST. 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 MAR-PR-Wtable-RR-2007.dat Marsh water table height, logging data from the railroad Spartina marsh site on the Parker River for April-December 2007. MAR-PR-Wtable-RR-2007.dat 1 column , http://ecosystems.mbl.edu/PIE/data/MAR/data/MAR-PR-Wtable-RR-2007.dat Time Time Date and minute of water height measurement (EST) mm-dd-yyyy hh:mm Logger 1 (tide gauge) Dc (m) Logger 1 (tide gauge) Dc (m) Depth of water (in m) above creek bottom relative to the tide gauge meter real Logger 2 Dc (m) Logger 2 Dc (m) Depth of water (in m) above creek bottom relative to the tide gauge meter real Logger 3 Dc (m) Logger 3 Dc (m) Depth of water (in m) above creek bottom relative to the tide gauge meter real Logger 4 Dc (m) Logger 4 Dc (m) Depth of water (in m) above creek bottom relative to the tide gauge meter real Logger 5 Dc (m) Logger 5 Dc (m) Depth of water (in m) above creek bottom relative to the tide gauge meter real Logger 6 Dc (m) Logger 6 Dc (m) Depth of water (in m) above creek bottom relative to the tide gauge meter real Comments Comments Information pertaining to individual data points Information pertaining to individual data points