Dataset: Influence of Wind-Driven Inundation and Coastal Geomorphology on Sedimentation in Two Microtidal Marshes, Pamlico River Estuary, NC

2020

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Data table(s) 3

Other entity(ies) 0

Abstract

Marsh sediment accumulation is predominately a combination of in situ organic accumulation and mineral sediment input during inundation. Within the Pamlico River Estuary (PRE), marsh inundation is dependent upon event (e.g., storms) and seasonal wind patterns due to minimal astronomical tides (<10 cm). A better understanding of the processes controlling sediment deposition and, ultimately, marsh accretion is needed to forecast marsh sustainability with changing land usage, climate, and sea level rise. This study examines marsh topography, inundation depth, duration of inundation, and wind velocity to identify relationships between short-term deposition (tile-based) and long-term accumulation (210Pb and 137Cs) recorded within and adjacent to the PRE. The results of this study indicate (1) similar sedimentation patterns between the interior marsh and shore-side marsh at different sites regardless of elevation, (2) increased sedimentation (one to two orders of magnitude, 0.04-4.54 g m-2 day-1) within the interior marsh when the water levels exceeded the adjacent topography (e.g., storm berm), and (3) that short-term sea level changes can have direct effects on sediment delivery to interior marshes in wind-driven estuarine systems.

Metadata Provider

 

Creators

  • David  Lagomasino  david.lagomasino@gmail.com

Associated parties

  • David  Lagomasino 
  • D. Reide  Corbett 
  • J.P.  Walsh 

Keywords

Temporal coverage

Start date End date
2007-09-26 2008-10-31

Geographic coverage

Taxonomic coverage

Rank name Value
Species Spartina alterniflora
Species Spartina patens
Species Spartina cynosuroides
Species Juncus roemerianus

Data tables


Lagomasino_et_al_2020_methods , methods information for study


Physical: Lagomasino_et_al_2020_methods.csv
attribute name definition format, unit or codes
study_id Unique identifier for the study made up of the first author's family name, as well as the second author's or 'et al.' if more than three, then publication year spearated by underscores. See worksCited.bib for more detail.
coring_method Code indicating what type of device was used to collect soil depth profiles. none specified = No coring device was specified 
dry_bulk_density_flag Any notable codes regarding how the authors quantified dry bulk density. modeled = Bulk density was not measured, but was modeled from loss on ignition and assumptions about the particle densities of organic and inorganic matter 
loss_on_ignition_temperature Temperature at which samples were combusted to estimate fraction organic matter. celsius
loss_on_ignition_time Time over which samples were combusted to estimate fraction organic matter. hour
cs137_counting_method Code indicating the method used for determining radiocesium activity. gamma = Gamma counting method used. 
pb210_counting_method Code indicating the method used for determining lead 210 activity. alpha = Alpha counting method used 
excess_pb210_rate Code indicating the mass or accretion rate used in the excess_pb_210_model accretion = Excess 210Pb modeled using vertical accretion rate. 
excess_pb210_model Code indicating the model used to estimate excess lead 210. CFCS = Constant flux constant sedimentation model used. 

Lagomasino_et_al_2020_cores , cores information for study


Physical: Lagomasino_et_al_2020_cores.csv
attribute name definition format, unit or codes
study_id Unique identifier for the study made up of the first author's family name, as well as the second author's or 'et al.' if more than three, then publication year spearated by underscores. See worksCited.bib for more detail.
site_id Site identification code unique to each study.
core_id Core identification code unique to each site.
core_date Date of core collection. YYYY-MM-DD
core_latitude Positional latitude of the core in decimal degree WGS84. degree
core_longitude Positional longitude of the core in decimal degree WGS84. degree
core_position_method Code indicating how latitude and longitude were determined. RTK-GPS = Real-time kinematic global position system (GPS) 
core_elevation Surface elevation of the core relative to defined datum. meter
core_elevation_datum The datum relative to which the core elevation was measured against (For a complete list of datum names and aliases please refer to the ISO Geodedic Registry https://iso.registry.bespire.eu/register/geodetic/VerticalDatum). NAVD88 = A gravity-based geodetic datum, North American Vertical Datum of 1988 
core_elevation_method Code indicating how elevation was determined RTK-GPS = Real-time kinematic global position system (GPS) 
salinity_class Code based on submitter field observation or measurement indicating average annual salinity (Note: Palustrine and freshwater should only include tidal wetlands, or wetlands that are potentially/formerly tidal but artificially freshened due to artificial tidal restrictions). mixoeuhaline = 30-40 ppt 
salinity_method Indicate whether salinity_class was determined using a field observation or a measurement measurement = Salinity observed from local instrument. 
vegetation_class Code based on submitter field observations or measurement indicating dominant wetland vegetation type. emergent = Describes wetlands dominated by persistent emergent vascular plants 
vegetation_method Indicate whether vegetation_class was determined using a field observation or a measurement field observation = Vegetation inferred by field observation 

Lagomasino_et_al_2020_depthseries , depthseries information for study


Physical: Lagomasino_et_al_2020_depthseries.csv
attribute name definition format, unit or codes
study_id Unique identifier for the study made up of the first author's family name, as well as the second author's or 'et al.' if more than three, then publication year spearated by underscores. See worksCited.bib for more detail.
site_id Site identification code unique to each study.
core_id Core identification code unique to each site.
depth_min Minimum depth of a sampling increment. centimeter
depth_max Maximum depth of a sampling increment. centimeter
dry_bulk_density Dry mass per unit volume of a soil sample. This does not include ash free bulk density. gramsPerCubicCentimeter
fraction_organic_matter Mass of organic matter relative to sample dry mass. Ash free bulk density should not be used here but should be expressed as a loss on ignition fraction. dimensionless
cs137_activity Radioactivity counts per unit dry weight for radiocesium (137Cs). disintegrationsPerMinutePerGram
cs137_activity_se 1 standard error of uncertainty associated with cs137_activity. disintegrationsPerMinutePerGram
total_pb210_activity Total radioactivity counts per unit dry weight for excess lead 210 (210Pb). disintegrationsPerMinutePerGram
total_pb210_activity_se 1 standard error of uncertainty associated with total_pb210_activity. disintegrationsPerMinutePerGram
depth_interval_notes Any other submitter generated notes specific to the depth interval.

Custom units

unit name parent SI unit unit type description
disintegrationsPerMinutePerGram radionucleotideActivityPerMass disintegrations per minute per gram is a measure of the activity of the source of radioactivity

Other entities

Intellectual Rights

This dataset is listed under a Creative Commons BY 4.0 and can be used with attribution. https://creativecommons.org/licenses/by/4.0/