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: | LTE-MP-LAC-elevationmeans.01 |
| Dataset Title: | Marsh surface elevation data at a Spartina alterniflora-dominated salt marsh at Law's Point, Rowley River, Plum Island Ecosystem (PIE) LTER, MA. |
| Investigator 1: | |
| First Name: | Jim |
| Last Name: | Morris |
| Address line 1: | Dept of Biological Sciences |
| Address line 2: | |
| Address line 3: | University of SC |
| City: | Columbia |
| State: | SC |
| Zip Code: | 29208 |
| Country: | USA |
| Investigator 2: | |
| First Name: | Karen |
| Last Name: | Sundberg |
| Address line 1: | Baruch Marine Field Laboratory |
| Address line 3: | PO Box 1630 |
| City: | Georgetown |
| State: | SC |
| Zip Code: | 29442 |
| Country: | USA |
| Associate Investigators: | Rob Daoust |
| Keywords: | estuary; salt marsh; Spartina alterniflora; elevation; surface elevation table (SET); sedimentation erosion table (SET); Northeast United States |
| Abstract: | A Surface Elevation Table (SET) is used to measure changes in the elevation of the marsh platform at a Spartina alterniflora-dominated marsh on the Rowley River in the Plum Island Ecosystem (PIE) LTER site, MA. |
| 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 Name | LTE-MP-LAC-elevationmeans |
| Beginning Date | 6/1/1999 |
| End Date | 9/30/2005 |
| Number of Data Records | 37 |
| Other Files to Reference | LTE-MP-LPC-elevationmeans; LTE-MP-NAC-elevationmeans |
| Availability Status | type 1 |
| Quality Control Information | |
| Maintenance Description | Collections occur every month from May through October. Database is updated once annually, usually in the winter. Study and data collection are ongoing as of Jan 2006. |
| Log of Changes: | |
| RESEARCH LOCATION: | |
| Geographic Description | Plum Island Ecosystems (PIE) LTER site, northeastern, Massachusetts; Law's Point, Rowley River Marsh site. |
| Location Bounding Box | |
| West Bounding Coordinate | |
| East Bounding Coordinate | |
| North Bounding Coordinate | |
| South Bounding Coordinate | |
| OR if single point location | |
| Latitude | 42.7317 |
| Longitude | -70.8425 |
| Methods: | Sampling Description: Triplicate SET benchmarks are permanently installed on the marsh platform in a Spartina alterniflora-dominated marsh at Law's Point, Rowley River, Plum Island Ecosystem (PIE) LTER site, MA. Each SET benchmark is positioned such that elevation readings can be taken in 3 control subplots. At each subplot, the SET sampling arm is leveled, 9 brass pins are lowered to the marsh surface, and the height of each pin above the sampling plate is measured and recorded. Surface elevations are measured monthly from May through October. Numerical Processing: Data are reported as the mean change in elevation and standard error of the 3 replicate plots (n=81) from time zero. Statistics were computed using SAS (SAS System for Windows; release 8.02; SAS Institute, Inc; Cary, NC). |
| Variable Name | Variable Description | Units | Measurement Scale | Code Infomation | Number Type | DateTime Format | Missing Value Code | Missing Value Code Explanation |
| site | name of sampling station | nominal | ||||||
| year | year | datetime | yyyy | |||||
| month | month | datetime | mm | |||||
| elev change | mean change in elevation | centimeter | interval | real | . | .=not measured | ||
| stderr | standard error of the mean | centimeter | interval | real | . | .=not measured | ||
| comments | Information pertaining to individual data points | nominal |