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Global Change Master Directory (GCMD)
Florida Bay sediment geochemical data
Entry ID: USGS_SOFIA_orem_fb_sed_geochem


Summary
Abstract: The data set contains the sample ID, depth (cm), sediment size, fine sediment fraction (<60m), total C %, organic C %, total N %, total P %, C/N, C/P, and N/P.

This project is examining (1) sources of nutrients, sulfur, and carbon to wetlands of south Florida, (2) the important role of chemical and biological processes to the wetland sediments (biogeochemical processes) in the cycling of these elements, and (3) the ultimate fate (i.e. sinks) of these elements in the ecosystem. The focus on nutrients and carbon reflects the problem of eutrophication in the northern Everglades, where excess phosphorus from agricultural runoff has dramatically altered the biology of the ecosystem. Results will be used by land and water managers to predict the fate of nutrients (especially phosphorus) in contaminated areas of the Everglades, and to evaluate the long-term effectiveness of buffer wetlands being constructed as nutrient removal areas. Studies of sulfur in the ecosystem are important for understanding the processes involved in mercury methylation in the Everglades. Methyl mercury (a potent neurotoxin) poses a severe health risk to organisms in the south Florida ecosystem and to humans. Sediment studies conducted by this project will also be used to construct a geochemical history of the ecosystem. An understanding of past changes in the geochemical environment of south Florida provides land and water managers with baseline information on what water quality goals for the ecosystem should be, and on how the ecosystem has responded to past environmental change and will likely respond to the changes that will accompany restoration.

Related URL
Link: View Related Information
Description: Data may be downloaded from the SOFIA web site


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Link: View Related Information

Geographic Coverage
 N: 25.25 S: 25.0  E: -80.5  W: -80.75

Data Set Citation
Dataset Creator: William Orem
Dataset Title: Florida Bay sediment geochemical data
Dataset Release Date: 2005-01-01T00:00:00.000Z
Version: Not provided
Online Resource: http://sofia.usgs.gov/exchange/orem/oremsed.html


Temporal Coverage
Start Date: 1996-01-01
Stop Date: 1996-12-31


Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > FLORIDA


Science Keywords
BIOSPHERE >ECOSYSTEMS >TERRESTRIAL ECOSYSTEMS >WETLANDS    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >NUTRIENTS >NITROGEN COMPOUNDS    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >NUTRIENTS >PHOSPHOROUS    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >ISOTOPES >RADIOISOTOPES    [Definition]
OCEANS >OCEAN CHEMISTRY >CARBON    [Definition]
OCEANS >OCEAN CHEMISTRY >RADIONUCLIDES    [Definition]
BIOSPHERE >ECOSYSTEMS >AQUATIC ECOSYSTEMS >WETLANDS    [Definition]


Instrument
CHN ANALYZERS >Carbon, Hydrogen, Nitrogen Analyzers    [Information]
PISTON SAMPLERS    [Information]


Project
USGS_SOFIA >South Florida Information Access    [Information]


Quality
Missing data is indicated by "nd" in the spreadsheet.


Access Constraints
None


Use Constraints
None. Acknowledgement of the U.S. Geological Survey would be appreciated for products derived from these data.


Keywords
Monroe County
Bob Allen Key
Florida Bay
Pass Key
Russell Key
Whipray Basin
Central Everglades
Sediment Size
Radionuclides
Fine Sediment Fraction
Piston Core
Geology
Peat Deposits
Geochemistry
Chemistry


Data Set Progress
COMPLETE


Data Center
SOUTH FLORIDA INFORMATION ACCESS, SOUTHEAST ECOLOGICAL SCIENCE CENTER, U.S. GEOLOGICAL SURVEY, U.S. DEPARTMENT OF THE INTERIOR    [Information]
Data Center URL: http://sofia.usgs.gov/

Data Center Personnel
Name: HEATHER S. HENKEL
Phone: 727-502-8028
Fax: 727-502-8182
Email: hhenkel at usgs.gov
Contact Address:
U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
600 Fourth St. South
City: St. Petersburg
Province or State: FL
Postal Code: 33701
Country: USA



Distribution
Distribution_Format: MS Excel
Fees: None


Personnel
WILLIAM H. OREM
Role: TECHNICAL CONTACT
Phone: 703-648-6273
Fax: 703-648-6419
Email: borem at usgs.gov
Contact Address:
U.S. Geological Survey
12201 Sunrise Valley Drive
City: Reston
Province or State: VA
Postal Code: 20192
Country: USA


ALICIA ALEMAN
Role: METADATA AUTHOR
Email: alicia.m.aleman at nasa.gov
Contact Address:
Goddard Space Flight Center
Code 610.2
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA


Extended Metadata Properties
(Click to view more)

Creation and Review Dates
DIF Creation Date: 2007-02-27
Last DIF Revision Date: 2018-07-03



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