Loxahatchee National Wildlife Refuge DataEntry ID: USGS_SOFIA_LOX_NWR_data
Abstract: The Loxahatchee National Wildlife Refuge (LOX) is a water-dominated ecosystem that is susceptible to water-quality impacts. A comprehensive analysis of historical water-quality and ancillary data is needed to direct the restoration of the Everglades and the adoption of water-quality standards in LOX because of its designation as Outstanding Florida Waters.
Loxahatchee National Wildlife Refuge ... (LOX) maintains a separate networks of hydrologic monitoring stations (hydrostations) for measuring the stage and quality of surface water throughout the units. The data collected at these sites provides a historical baseline for assessing hydrologic conditions and making a wide range of management decisions (both internally and externally). Surface-water stage data is relatively straight-forward to analyze, both in real time and relative to historic conditions, and has typically been conducted by in-house hydrology staff at both units. Analysis of surface water-quality data is generally regarded as being more complex because of the subtleness of trends, absence of continuous data, and dependence on surface water depth and season. Collection and analysis of water-quality samples at LOX was done under cooperative agreements with the South Florida Water Management District (SFWMD). Under these agreements, the Park Service collects the samples in the field and the SFWMD provides sampling equipment and laboratory analyses. Water-quality data have been collected at 14 internal marsh sites in LOX by the U.S. Fish and Wildlife Service for over 10 years. These samples have been analyzed by SFWMD laboratory. In 2000, a study was begun by the U.S. Geological Survey to gather, edit, and interpret selected water-quality data from a variety of sources to improve the understanding of changes in water-quality in areas impacted by human activities or in more remote and relatively unimpacted areas of the Everglades and Big Cypress Swamp. The study area was extended into LOX in 2003.
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Data Set Citation
Dataset Originator/Creator: Benjamin McPherson (retired) Ronald L. Miller (retired); Arturo Torres
Dataset Title: Loxahatchee National Wildlife Refuge Data
Dataset Release Date: 2005
Data Presentation Form: spreadsheetOnline Resource: http://sofia.usgs.gov/exchange/mcpherson/loxdata.html
Start Date: 1974-06-01Stop Date: 2002-10-31
Latitude Resolution: 0.01
Longitude Resolution: 0.01
Vertical Resolution: 1.0
HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > CONTAMINANT LEVELS/SPILLS
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > CARBON DIOXIDE
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > CONDUCTIVITY
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > CONTAMINANTS
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > NITROGEN COMPOUNDS
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > NUTRIENTS
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > PHOSPHOROUS COMPOUNDS
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > TOXIC CHEMICALS
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > WATER ION CONCENTRATION
BIOSPHERE > AQUATIC ECOSYSTEMS > WETLANDS
Quality Records for stations in Loxahatchee National Wildlife Refuge (LOX) are monthly. The period of record varies for the data depending on what data were collected.
Water-quality and ancillary data were collected from the files of the U.S. Geological Survey, South Florida Water Management District, Everglades National Park, Big Cypress National Preserve, the U.S. Fish and ... Wildlife Service, some southern Florida County agencies, State of Florida agencies, and other sources of long-term water-quality and ancillary data. Available data was collected in electronic files from the original source. The intention was not to collect every available piece of data, but to collect data with the potential to detect long-term trends or lack thereof in chemical concentrations. Focus was on chemicals of environmental importance.
Station location and description, and period of record data are stored for each sampling location in the USGS NWIS database and in the South Florida Water Management District DBHYDRO database.
Data were reformatted, if necessary, for storage in a database at the U.S. Geological Survey Subdistrict Office in Tampa, Florida. When feasible, data was screened using chemical logic checks developed by Ronald Miller of the USGS in St. Petersburg, Florida.
Various graphs and statistical evaluations were used to detect correlations between variables and trends in concentration. Selected graphs and statistical results will be incorporated into a written report of the interpretations.
Access Constraints None
Use Constraints These data are subject to change and are not citeable until reviewed and approved for official publication.
Data Set Progress
Distribution Size: 2.5
Distribution Format: Excel
Role: TECHNICAL CONTACT
Phone: (813) 975-8620 ext. 128
Fax: (813) 942-9521
Email: aetorres at usgs.gov
U.S. Geological Survey 227 N. Bronough Street
Province or State: FL
Postal Code: 32301
Role: DIF AUTHOR
Email: alicia.m.aleman at nasa.gov
Goddard Space Flight Center Code 610.2
Province or State: MD
Postal Code: 20771
McPherson, Benjamin F., Halley, Robert; 1996; The South Florida Environment: a region under stress; USGS Circular, 1134, U.S. Geological Survey Southern Florida NAWQA Program publication
McPherson, Benjamin F., Miller, Ronald L.; Haag, Kim H.; Bradner, Anne; 2000; Water Quality in Southern Florida, 1996 - 98, USGS Circular, 1207, U.S. Geological Survey http://pubs.usgs.gov/circ/circ1207/
Miller, Ronald L., McPherson, Benjamin F.; Haag, Kim H. 1999; Water quality in the southern Everglades and Big Cypress Swamp in the vicinity of the Tamiami Trail, 1996-97; USGS Water Resources Investigations Report, 99-4062, U.S. Geological Survey http://fl.water.usgs.gov/Abstracts/wri99_4062_miller.html
Miller, Ronald L., McPherson, Benjamin F. 2001; Occurrence And Distribution Of Contaminants In Bottom Sediment and Water Of The Barron River Canal, Big Cypress National Preserve, Florida, October 1998; Florida Scientist, v. 64, n. 1, Florida Academy of Sciences
Originally published in Florida Scientist, vol. 64, Winter, 2001, Number 1
Miller, Ronald L., McPherson, Benjamin F.; Sobczak, Robert; Clark, Christine; 2004; Water Quality in Big Cypress National Preserve and Everglades National Park - Trends and Spatial Characteristics of Selected Constituents; Water Resources Investigations Report, 03-4249, U.S. Geological Survey http://sofia.usgs.gov/publications/wri/03-4249/
Miller, R. L., McPherson, B. F. 2008; Water Quality in the Arthur R. Marshall Loxahatchee National Wildlife Refuge - Trends and Spatial Characteristics of Selected Constituents, 1974-2004; USGS Scientific Investigations Report, 2007-5277, U.S. Geological Survey
Creation and Review Dates
DIF Creation Date: 2008-04-11
Last DIF Revision Date: 2008-11-25