Data Package Metadata View Summary

LTREB: Marsh elevation change in control and fertilized plots in a Spartina alterniflora-dominated salt marsh, North Inlet, Georgetown, SC: 1996-2021

General Information

Data Package:

Local Identifier:

edi.589.1

Title:

LTREB: Marsh elevation change in control and fertilized plots in a Spartina alterniflora-dominated salt marsh, North Inlet, Georgetown, SC: 1996-2021

Alternate Identifier:

DOI PLACE HOLDER

Abstract:

Marsh elevation was measured with a Surface Elevation Table (SET) as a component of a long-term project seeking to understand how salt marsh primary production and sediment chemistry respond to anthropogenic (e.g. eutrophication) and natural (e.g. sea-level rise) environmental change. Feedbacks between plants, sediments, nutrients and flooding were investigated with particular attention to mechanisms that keep marshes in equilibrium with sea level. Other data collected as part of the project include aboveground annual primary productivity, plant biomass, plant density and porewater nutrient concentrations. These data have been used to develop the Marsh Equilibrium Model, an important tool for coastal resource managers.

Sampling occurred at Spartina alterniflora-dominated salt marsh sites in North Inlet, a relatively pristine estuary near Georgetown, SC on the SE coast of the United States. North Inlet is a tidally-dominated, bar-built estuary, with a semi-diurnal mixed tide and a tidal range of 1.4m. The 25-km2 estuary is comprised of about 20.5 km2 of intertidal salt marsh and mudflats, and 4.5 km2 of open water. Marsh elevation sampling began at high marsh locations in 1996 and at low marsh locations in 2001. Sampling occurred approximately monthly through 2021. The study is on-going.

Elevations were measured at two sampling locations (low marsh and high marsh) at one site. Both locations had control sampling plots in addition to plots fertilized with nitrogen and phosphorus.

Publication Date:

2021-12-14

For more information:
Visit:	DOI PLACE HOLDER

Time Period

Begin:

1996-06-01

End:

2021-12-31

People and Organizations
Contact:	Morris, James (Belle W. Baruch Institute for Marine and Coastal Sciences) [ email ]
Contact:	Sundberg, Karen (Belle W. Baruch Institute for Marine and Coastal Sciences) [ email ]
Creator:	Morris, James (Belle Baruch Institute for Marine and Coastal Sciences)
Creator:	Sundberg, Karen (Belle W. Baruch Institute for Marine and Coastal Sciences)
Associate:	Hankinson, Warren
Associate:	Krest, Robin
Associate:	Haskin, Betsy

Data Entities
Data Table Name:	NILTREB_elevation_change
Description:	Elevation change measured with a Surface Elevation Table
Data Table Name:	NILTREB_surface_elevation_2009
Description:	Surface elevation in 2009 measured with RTK

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/589/1/492bf5462046cc847c4911e3f6f32656
Name:	NILTREB_elevation_change
Description:	Elevation change measured with a Surface Elevation Table
Number of Records:	2836
Number of Columns:	7

Table Structure

Object Name:

NILTREB_elevation_change.csv

Size:

91393 byte

Authentication:

cd1240f9e232d686aa73867f3705b94b Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

SITE

LOCATION

PLOT

TREATMENT

DATE

MEAN_ELEV_CHANGE

STDERR

Column Name:

SITE

LOCATION

PLOT

TREATMENT

DATE

MEAN_ELEV_CHANGE

STDERR

Definition:

Name of sampling station

Location of sampling station within the site

Sample plot identifier

Experimental treatment applied to the sample location

Date SET measurements were made

Mean change in elevation of the plot since the beginning of the experiment

Standard error of mean elevation of the plot

Storage Type:

string

float

Measurement Type:

nominal

dateTime

ratio

Measurement Values Domain:

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	GI
Definition	Goat_Island
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	HM
Definition	High_Marsh
Source

Code Definition

Code	LM
Definition	Low_Marsh
Source

Definition

Sample plot identifier

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	C
Definition	Control
Source

Code Definition

Code	NP
Definition	Fertilized
Source

Format	mm/dd/yyyy
Precision

Unit	centimeter
Type	real

Unit	dimensionless
Type	real

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/589/1/d15fae10ce86584b7fe42c4b9c0a8c8e
Name:	NILTREB_surface_elevation_2009
Description:	Surface elevation in 2009 measured with RTK
Number of Records:	12
Number of Columns:	6

Table Structure

Object Name:

NILTREB_surface_elevation_2009.csv

Size:

406 byte

Authentication:

562f22297021d4f002521ec922897b85 Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

SITE

LOCATION

PLOT

TREATMENT

DATE

MARSH_SURFACE_ELEVATION

Column Name:

SITE

LOCATION

PLOT

TREATMENT

DATE

MARSH_SURFACE_ELEVATION

Definition:

Name of sampling station

Location of sampling station within the site

Sample plot identifier

Experimental treatment applied to the sample location

Date RTK surface elevation measurements were made

Elevation of the marsh surface at the indicated plot relative to NAVD88 as surveyed in October 2009

Storage Type:

string

float

Measurement Type:

nominal

dateTime

ratio

Measurement Values Domain:

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	GI
Definition	Goat_Island
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	HM
Definition	High_Marsh
Source

Code Definition

Code	LM
Definition	Low_Marsh
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	5
Definition	Plot5
Source

Code Definition

Code	9
Definition	Plot9
Source

Code Definition

Code	12
Definition	Plot12
Source

Code Definition

Code	16
Definition	Plot16
Source

Code Definition

Code	17
Definition	Plot17
Source

Code Definition

Code	18
Definition	Plot18
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	C
Definition	Control
Source

Code Definition

Code	NP
Definition	Fertilized
Source

Format	YYYY-MM-DD
Precision

Unit	centimeter
Type	real

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Package Usage Rights

This data package is released to the "public domain" under Creative Commons CC0 1.0 "No Rights Reserved" (see: https://creativecommons.org/publicdomain/zero/1.0/). It is considered professional etiquette to provide attribution of the original work if this data package is shared in whole or by individual components. A generic citation is provided for this data package on the website https://portal.edirepository.org (herein "website") in the summary metadata page. Communication (and collaboration) with the creators of this data package is recommended to prevent duplicate research or publication. This data package (and its components) is made available "as is" and with no warranty of accuracy or fitness for use. The creators of this data package and the website shall not be liable for any damages resulting from misinterpretation or misuse of the data package or its components. Periodic updates of this data package may be available from the website. Thank you.

Keywords

By Thesaurus:
(No thesaurus)	LTREB, North Inlet, South Carolina, Southeast United States, Spartina alterniflora, marsh elevation
LTER Controlled Vocabulary	fertilization, estuaries, salt marshes, surface elevation table, sedimentation, accretion

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

Methods and protocols used in the collection of this data package

Description:

Sampling Description:

Triplicate original-style SET benchmark posts were permanently installed in the high marsh (HM) and low marsh (LM) on the marsh platform in a Spartina alterniflora-dominated marsh at Goat Island, North Inlet, Georgetown, SC. Each SET sampling site consists of a permanently installed post and a removable arm. The arm has a vertical and a horizontal component. The vertical component fits into the SET benchmark post; the horizontal component reaches out over the experimental subplot and has a square plate at the end through which 9 pins are lowered. Each SET post is associated with two adjacent plots (one control, one NP fertilized); each plot contains three subplots. Plots in the HM were fertilized monthly from May 1996 to Aug 2004 and again from May 2017 until present, and in the LM from Jan 2001 until Aug 2004, by burying an aliquot of the appropriate amount of fertilizer in several spots within each plot. Each SET benchmark post is positioned such that 27 elevation readings can be taken in a fertilized plot (9 readings in 3 subplots) and 27 elevation readings can be taken in a control plot. Plots are numbered (LM plot IDs=16, 17, 18; HM plot IDs=5, 9, 12). Subplots are lettered A-F. Elevations of the 6 benchmark posts were measured in October 2009 using a Trimble R8 GNSS receiver, Trimble Ranger Handheld Computer and Trimble HPB450 Radio. The elevation of the marsh surface was then calculated using the geometry of the SET.

To measure elevations, the SET arm is locked in place over each subplot, is leveled, and the 9 fiberglass pins are lowered to touch the sediment surface and held in place with a clip. Pin heights are measured from the top of the nut on the plate to the top of the pin, and read into a digital recorder. The recordings are transcribed into one master SET pin height data set. Pin heights are measured approximately monthly.

The SET was manufactured by Nolan’s Machine Shop in Lafayette LA; 337-235-5261. Replacement pins or collars can be purchased from Nolan’s. Stainless steel parts (roll pins etc) come from McMaster-Carr. Measuring pins are held in place with badge clips, available at office supply stores.

Numerical Processing:

Data are reported for each plot/treatment as the mean change in elevation and standard error of the 3 replicate subplots over time, from the beginning of the study (1996 for the high marsh; 2001 for the low marsh). Change in marsh elevation is determined by subtracting pin height at time X from the mean pin height for the subplot at time 0. Statistics were performed using SAS (SAS Institute, Inc; Cary, NC).

People and Organizations

Publishers:

Organization:

Environmental Data Initiative

Email Address:

info@environmentaldatainitiative.org

Web Address:

https://environmentaldatainitiative.org

Id:

https://ror.org/0330j0z60

Creators:

Individual:

Dr. James Morris

Organization:

Belle Baruch Institute for Marine and Coastal Sciences

Address:

University of South Carolina,

Columbia, SC

Email Address:

morris@inlet.geol.sc.edu

Id:

https://orcid.org/0000-0002-0511-642X

Individual:

Karen Sundberg

Organization:

Belle W. Baruch Institute for Marine and Coastal Sciences

Address:

PO Box 1630,

Georgetown, SC 29442 United States

Email Address:

sundberg@biol.sc.edu

Id:

https://orcid.org/0000-0001-5871-6376

Contacts:

Individual:

Dr. James Morris

Organization:

Belle W. Baruch Institute for Marine and Coastal Sciences

Address:

University of South Carolina,

Columbia, SC

Email Address:

morris@inlet.geol.sc.edu

Id:

https://orcid.org/0000-0002-0511-642X

Individual:

Karen Sundberg

Organization:

Belle W. Baruch Institute for Marine and Coastal Sciences

Address:

PO Box 1630,

Georgetown, SC 29442

Email Address:

sundberg@biol.sc.edu

Id:

https://orcid.org/0000-0001-5871-6376

Associated Parties:

Individual:	Warren Hankinson
Role:	Research Assistant

Individual:	Robin Krest
Role:	Research Assistant

Individual:	Betsy Haskin
Role:	Research Assistant

Metadata Providers:

Individual:

Karen Sundberg

Organization:

Belle W. Baruch Institute for Marine and Coastal Sciences

Address:

PO Box 1630,

Georgetown, SC 29442 United States

Email Address:

sundberg@biol.sc.edu

Id:

https://orcid.org/0000-0001-5871-6376

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to all data in this dataset:

Time Period

Begin:

1996-06-01

End:

2021-12-31

Geographic Region:

Description:

North Inlet, Georgetown, SC

Bounding Coordinates:

Northern:	33.35	Southern:	33.32
Western:	-79.2	Eastern:	-79.18

Project

Parent Project Information:

Title:

LTREB: Long Term Studies of Salt Marsh Primary Production

Personnel:

Individual:

James Morris

Organization:

Belle W. Baruch Institute for Marine and Coastal Sciences

Address:

University of South Carolina,

Columbia, SC

Email Address:

morris@inlet.geol.sc.edu

Id:

https://orcid.org/0000-0002-0511-642X

Role:

Principle Investigator

Additional Award Information:

Funder:	National Science Foundation
Number:	1654853
Title:	LTREB Renewal: Long Term Studies of Salt Marsh Primary Production

Maintenance

Maintenance:

Description:	Data collection is approximately monthly. Dataset maintenance is on-going.
Frequency:	annually

Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n        '
        |___element 'metadata'
        |     |___text '\n            '
        |     |___element 'emlEditor'
        |     |        \___attribute 'app' = 'ezEML'
        |     |        \___attribute 'release' = '2021.12.01'
        |     |___text '\n        '
        |___text '\n    '

Copyright 2024 Environmental Data Initiative. This material is based upon work supported by the National Science Foundation under grants #2223103 and #2223104. 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. Please contact us with questions, comments, or for technical assistance regarding this web site or the Environmental Data Initiative. Please read our privacy policy to know what information we collect about you and to understand your privacy rights.

EDI is a collaboration between the University of New Mexico and the University of Wisconsin – Madison, Center for Limnology:

Data Package Metadata View Summary

LTREB: Marsh elevation change in control and fertilized plots in a Spartina alterniflora-dominated salt marsh, North Inlet, Georgetown, SC: 1996-2021

Data Entities

Data Table

Data Table

Data Package Usage Rights

Keywords

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Parent Project Information:

Maintenance

Additional Metadata

Recently Added

Recently Updated

Data Package Metadata View Summary

LTREB: Marsh elevation change in control and fertilized plots in a Spartina alterniflora-dominated salt marsh, North Inlet, Georgetown, SC: 1996-2021

+/- Data Entities

Data Table

Data Table

+/- Data Package Usage Rights

+/- Keywords

+/- Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

+/- People and Organizations

+/- Temporal, Geographic and Taxonomic Coverage

+/- Project

Parent Project Information:

+/- Maintenance

+/- Additional Metadata

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Metadata