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Nutrients Data (Lietz)

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Arthur C. Lietz (retired)
Publication_Date: 2001
Title: Nutrients Data (Lietz)
Geospatial_Data_Presentation_Form: digital files
Online_Linkage: <https://sofia.usgs.gov/exchange/lietz/lietznuts.html>
Description:
Abstract:
This project attempted to quantify nitrogen and phosphorus loads to Biscayne Bay based upon models developed from ordinary least squares regression techniques. It also examined which historical methods of sampling accurately represent nutrient concentrations in the water column of south Florida canals and can be used to calculate past nutrient loading. Also, water-quality trend analysis was conducted on data from two former National Stream Quality Accounting Network (NASQAN) sites that have a direct impact on the south Florida ecosystem.

The data contain measurements for nitrogen organic total, nitrogen ammonia total, nitrogen AMM+ORG total, nitrogen nitrite total, nitrogen nitrate total, nitrogen nitrite+nitrate total, phosphorus total, and orthophosphorus total from 15 sites in Miami-Dade County. Data are available as separate files for each site or as data for all sites in one file in either Excel spreadsheets or tab-delimited text files.

Purpose:
The ecological health of bays and estuaries has become a matter of concern throughout the country. Biscayne Bay, which is a shallow, oligotrophic, subtropical estuary along the southeastern coast of Florida has been adversely impacted in certain locations by the increase in nutrient loads from tributary canals that have resulted from agricultural, urban, commercial and industrial processes. The ecological health of the Bay, as well as development of restoration efforts is dependent in part on understanding loads to the bay. This task was undertaken to determine nutrient loads from the canals discharging into Biscayne Bay National Park
Supplemental_Information: This project was completed on September 30, 1999.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 199604
Ending_Date: 199710
Currentness_Reference: Collection date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: none planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -80.431
East_Bounding_Coordinate: -80.156
North_Bounding_Coordinate: 25.933
South_Bounding_Coordinate: 25.358
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: chemistry
Theme_Keyword: hydrology
Theme_Keyword: nitrogen
Theme_Keyword: nutrients
Theme_Keyword: phosphorus
Theme_Keyword: water quality
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: environment
Theme_Keyword: inlandWaters
Theme_Keyword: 007
Theme_Keyword: 012
Place:
Place_Keyword_Thesaurus:
Department of Commerce, 1995, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions, Federal Information Processing Standard (FIPS) 10-4, Washington, D.C., National Institute of Standards and Technology
Place_Keyword: United States
Place_Keyword: US
Place:
Place_Keyword_Thesaurus:
U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, D. C., NIST
Place_Keyword: Florida
Place_Keyword: FL
Place:
Place_Keyword_Thesaurus:
Department of Commerce, 1990, Counties and Equivalent Entities of the United States, Its Possessions, and Associated Areas, FIPS 6-3, Washington, DC, National Institute of Standards and Technology
Place_Keyword: Miami-Dade County
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Arch Creek at G-58
Place_Keyword: Biscayne Canal at S-28
Place_Keyword: Black Creek Canal at S-21
Place_Keyword: Comfort Canal at S-25
Place_Keyword: Coral Gables Canal at G-93
Place_Keyword: Cutler Drain Canal at S-123
Place_Keyword: Little River Canal at S-27
Place_Keyword: Miami Canal at S-26
Place_Keyword: Military Canal at S-20G
Place_Keyword: Model Land Canal at S-20
Place_Keyword: Mowry Canal at S-20F
Place_Keyword: Princeton Canal at S-21A
Place_Keyword: Snake Creek Canal at S-29
Place_Keyword: Snake Creek Canal at S-29
Place_Keyword: Tamiami Canal at S-25B
Place_Keyword: South East Coast
Temporal:
Temporal_Keyword_Thesaurus: none
Temporal_Keyword: periodic
Access_Constraints: none
Use_Constraints: none
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Michael Byrne
Contact_Organization: U.S. Geologcial Survey
Contact_Address:
Address_Type: mailing and physical address
Address:
1400 Colonial Blvd.

Suite 70, Royal Palm Square

City: Fort Myers
State_or_Province: FL
Postal_Code: 33907
Country: USA
Contact_Voice_Telephone: 239 275-8448 ext. 10
Contact_Facsimile_Telephone: 239 275-6820
Contact_Electronic_Mail_Address: mbyrne@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: <https://sofia.usgs.gov/exchange/lietz/locationnuts.html>
Browse_Graphic_File_Description: location of data collection sites
Browse_Graphic_File_Type: GIF
Data_Set_Credit:
Project personnel included Frank Panellas, student civil engineer, John Goebel and Elizabeth Debiak, hydrologic technicians.
Native_Data_Set_Environment: Excel spreadsheets and tab-delimited text files
Cross_Reference:
Citation_Information:
Originator: Lietz, A. C.
Publication_Date: 1999
Title:
Methodology for estimating nutrient loads discharged from the east coast Canals to Biscayne Bay, Miami-Dade County, Florida
Geospatial_Data_Presentation_Form: report
Series_Information:
Series_Name: Water Resources Investigations Report
Issue_Identification: 99-4094
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: <http://sflwww.er.usgs.gov/publications/wri/99-4094>
Cross_Reference:
Citation_Information:
Originator: Lietz, A. C.
Publication_Date: 2002
Title:
Feasibility of Estimating Constituent Concentrations and Loads Based on Data Recorded by Acoustic Instrumentation
Geospatial_Data_Presentation_Form: report
Series_Information:
Series_Name: USGS Open-File Report
Issue_Identification: 02-285
Publication_Information:
Publication_Place: Tallahassee, FL
Publisher: U.S. Geological Survey
Online_Linkage: <http://fl.water.usgs.gov/Abstracts/ofr02_285_lietz.html>
Cross_Reference:
Citation_Information:
Originator: Lietz, A. C.
Publication_Date: 2000
Title:
Analysis of Water-Quality Trends at Two Discharge Stations - One within Big Cypress National Preserve and One near Biscayne Bay - Southern Florida, 1966-94
Geospatial_Data_Presentation_Form: report
Series_Information:
Series_Name: Water Resources Investigations Report
Issue_Identification: 00-4099
Publication_Information:
Publication_Place: Tallahassee, FL
Publisher: U.S. Geological Survey
Online_Linkage: <https://sofia.usgs.gov/publications/wri/00-4099/>
Cross_Reference:
Citation_Information:
Originator:
Lietz, A. C.

Dixon, Joann; Byrne, Michael

Publication_Date: 2002
Title:
Average altitude of the water table (1990-99) and frequency analysis of water levers (1974-99) in the Biscayne Aquifer, Miami-Dade County, Florida
Geospatial_Data_Presentation_Form: report
Series_Information:
Series_Name: USGS Open-File Report
Issue_Identification: 02-91
Publication_Information:
Publication_Place: Tallahassee, FL
Publisher: U.S. Geological Survey
Online_Linkage: <http://fl.water.usgs.gov/Abstracts/ofr02_91_lietz.html>

Data_Quality_Information:
Logical_Consistency_Report: not applicable
Completeness_Report:
Most of the sites have data from either 1996 or 1997. Snapper Creek Canal and Tamiami Canal have data from both 1996 and 1997. Data was collected mostly during April - October for each year.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The positional accuracy of the sampling sites was determined using GPS techniques and published topographic maps.
Lineage:
Process_Step:
Process_Description:
During periods of flow, water samples were collected for the determination of nitrogen and phosphorus species that truly represent the stream cross-section. This was accomplished by collecting depth-integrated samples and point (grab) samples from mid-stream at 0.5- and 1.0-m depths for comparison. These samples were collected mostly upstream of the gated control structures at locations where most of the historical data were collected. Additionally, hydrologic data were collected concurrent with each sampling event for use in the determination of instantaneous discharge. Based on these data, statistical comparisons were made between point (grab) and depth-integrated samples, and models were developed to estimate total nitrogen and total phosphorus loads.

Depth-integrated and point (grab) samples for nutrients were collected from the gated control structures at the east coast canal sites in Miami-Dade County during periods of flow. Most of the samples were collected near low tide when the gates at the sites usually are open. Depth-integrated samples were collected by means of the equal-width-increment method, which commonly is used when a discharge measurement is not made before sampling. In this method, the width of the stream is subdivided into equal-width intervals with a sampling vertical associated with each interval.

In each cross section for the study, 8 to 10 verticals were used. The first vertical selected was half the distance of the first interval from the edge of the stream bank, and the other verticals were equally spaced apart across the stream from the first vertical. Because flow velocities of the east coast canals in Miami-Dade County are nearly always less than 2 ft/s (feet per second), the weighted-bottle method was used to collect each sample. The weighted bottle does not sample isokinetically (nozzle velocity equal to stream velocity); however, it can be used during low flows and when differences in water quality across the stream are believed to be insignificant. In the initial step, the vertical with the greatest velocity is selected; the weighted bottle is then lowered and raised at a constant rate so that it is not overfilled when returned to the surface. For each specific site, this transit rate was maintained throughout for all the verticals in the cross section, and a sample from each vertical was composited in a churn splitter for processing. The transit rate as well as the nozzle size was varied for each specific site in order to prevent overfilling of the bottle.

During sample processing, the water in the churn was stirred by the churn disc at a rate of about 9 in/s (inches per second) to minimize error, with care being exercised to prevent the churn disc from breaking the surface. A total of 125 mL (milliliters) of this composite sample was siphoned off into an amber polyethylene bottle, chilled immediately, and within 48 hours was shipped to the USGS Water Quality Service Unit in Ocala, Fla., for analysis. The constituents determined were total organic nitrogen, ammonia, nitrite, nitrate, nitrite plus nitrate nitrogen, total phosphorus, and orthophosphate. A point (grab) sample was collected concurrently with each depth-integrated sample. Point (grab) samples, depending on the site, were collected at 0.5 or 1.0 m below the surface near the centroid of flow by using a Niskin bottle. This bottle is spring loaded so that a messenger can trip it shut at the appropriate depth. After collection of the point (grab) sample, 125 mL of the sample was transferred from the Niskin bottle into an amber polyethylene bottle, chilled, and shipped for analysis according to protocol.

Before each sampling trip, the Niskin bottle, weighted bottle, and churn splitter were cleaned with a dilute nonphosphate detergent and then rinsed with tap water followed by deionized water. Two rinses with native water were required for the samplers before sample collection at each east coast canal site. Between sampling sites, the samplers were rinsed with deionized water before being rinsed with native water.

To ensure the integrity of the field data collected for the study, quality assurance samples (equipment blanks, field blanks, and split samples) were used extensively in the data-collection phase. Blank solutions essentially are samples free of the analytes being determined in the environmental samples. An equipment blank is a blank solution that is processed through all of the equipment used in the collection and processing of the environmental samples. Field blanks are actually equipment blanks done in the field and are subject to all aspects of the data-collection efforts as the environmental samples, including processing, preservation, transport, and laboratory handling. Two types of field and equipment blanks were used: one for the Niskin bottle and the other for the weighted bottle and churn splitter. These two field blank solutions consisted of inorganic blank water prepared at the USGS Water Quality Service Unit and were processed and analyzed according to protocol. Analytical results from the equipment blanks and field blanks indicated that most of the concentrations for the individual nitrogen and phosphorus species were below the detection limits for the analytical methods.

Split samples were collected concurrently by the USGS and DERM to verify interlaboratory accuracy. The sampling data consisted of point (grab) samples that were collected from the same Niskin bottle by both agencies. The samples were sent to the USGS Water Quality Service Unit and to the DERM laboratory for analysis.

Process_Date: Unknown
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Michael Byrne
Contact_Organization: U.S. Geologcial Survey
Contact_Address:
Address_Type: mailing and physical address
Address:
1400 Colonial Blvd.

Suite 70, Royal Palm Square

City: Fort Myers
State_or_Province: FL
Postal_Code: 33907
Country: USA
Contact_Voice_Telephone: 239 275-8448 ext. 10
Contact_Facsimile_Telephone: 239 275-6820
Contact_Electronic_Mail_Address: mbyrne@usgs.gov

Spatial_Data_Organization_Information:
Indirect_Spatial_Reference: East Coast Canals
Direct_Spatial_Reference_Method: Point
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 15

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.1
Longitude_Resolution: 0.1
Geographic_Coordinate_Units: decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.257

Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
Parameters collected for each site include: nitrogen organic total, nitrogen ammonia total, nitrogen AMM+ORG total, nitrogen nitrite total, nitrogen nitrate total, nitrogen nitrite+nitrate total, phosphorus total, and orthophosphorus total
Entity_and_Attribute_Detail_Citation: USGS

Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Heather S.Henkel
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing address
Address: 600 Fourth St. South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727 803-8747 ext 3028
Contact_Facsimile_Telephone: 727 803-2030
Contact_Electronic_Mail_Address: hhenkel@usgs.gov
Resource_Description: lietz - nutrients data
Distribution_Liability: No warrantees are implied or explicit for the data
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ASCII text
Format_Version_Number: unknown
Format_Specification: tab-delimited
Format_Information_Content:
Data may be downloaded as one file for all sites or individual data files
Transfer_Size: 0.032
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <https://sofia.usgs.gov/exchange/lietz/lietznuts.html>
Access_Instructions: Data may be downloaded from the SOFIA web site
Digital_Form:
Digital_Transfer_Information:
Format_Name: MS Excel
Format_Version_Number: 2000
Format_Information_Content:
The data may be downloaded as one file for all sites or as individual files
Transfer_Size: 0.084
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <https://sofia.usgs.gov/exchange/lietz/lietznuts.html>
Access_Instructions: Data may be downloaded from the SOFIA web site
Fees: none

Metadata_Reference_Information:
Metadata_Date: 20090313
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Heather Henkel
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing and physical address
Address: 600 Fourth Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727 803-8747 ext 3028
Contact_Facsimile_Telephone: 727 803-2030
Contact_Electronic_Mail_Address: sofia-metadata@usgs.gov
Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: none
Metadata_Use_Constraints:
This metadata record may have been copied from the SOFIA website and may not be the most recent version. Please check <https://sofia.usgs.gov/metadata> to be sure you have the most recent version.

This page is <https://sofia.usgs.gov/metadata/sflwww/Nut_Data_Lietz.html>

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Comments and suggestions? Contact: Heather Henkel - Webmaster
Generated by mp version 2.8.18 on Fri Mar 13 14:21:41 2009