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Helicopter Magnetic Data

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator:
David Fitterman

Maria Deszcz-Pan

Publication_Date: 2002
Title: Helicopter Magnetic Data
Geospatial_Data_Presentation_Form: report
Series_Information:
Series_Name: USGS Open-File Report
Issue_Identification: 02-101
Publication_Information:
Publication_Place: Denver, CO
Publisher: U.S. Geological Survey
Online_Linkage: <http://sofia.usgs.gov/publications/ofr/02-101/data.html>
Description:
Abstract:
These helicopter electromagnetic data were flown over a portion of Everglades National Park and surrounding areas in south Florida 9-14 December 1994. Two versions of the data are provided: the original dataset and the corrected dataset.
Purpose:
This project addressed the question of determining the location of the fresh-water/salt-water interface (FWSWI) in the coastal regions of southern Miami-Dade and Monroe counties, synoptic monitoring of changes in water quality associated with changes in water management practices, and looking for geophysical evidence of subsurface discharges to Florida Bay.

This project provided basic information needed to create ground-water models and test various restoration strategies and their impact on ground-water quality.

Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19941209
Ending_Date: 29941214
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -81.125
East_Bounding_Coordinate: -80.375
North_Bounding_Coordinate: 25.6
South_Bounding_Coordinate: 25.125
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: helicopter electromagnetic data
Theme_Keyword: hydrology
Theme_Keyword: mapping
Theme_Keyword: helicopter electromagnetic data
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: environment
Theme_Keyword: inlandWaters
Theme_Keyword: imageryBaseMapsEarthCover
Theme_Keyword: 007
Theme_Keyword: 012
Theme_Keyword: 011
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, DC, 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, DC, 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_Keyword: Monroe County
Place:
Place_Keyword_Thesaurus: USGS Geographic Names Information System
Place_Keyword: Everglades National Park
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Central Everglades
Access_Constraints: none
Use_Constraints: none
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: David Fitterman
Contact_Organization: U.S. Geological Survey
Contact_Position: Project Chief
Contact_Address:
Address_Type: mailing address
Address:
P. O. Box 25046

Denver Federal Center MS 964

City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: 303 236-1382
Contact_Facsimile_Telephone: 303 236-1425
Contact_Electronic_Mail_Address: fitter@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: <http://sofia.usgs.gov/publications/ofr/02-101/diglocmapx.gif>
Browse_Graphic_File_Description: area covered by the Dighem helicopter electromagnetic survey
Browse_Graphic_File_Type: GIF
Data_Set_Credit:
The U.S. Geological Survey contracted with Dighem, then a division of CGG Canada, Ltd, of Mississauga, Ontario, Canada, to fly a helicopter electromagnetic survey over parts of Everglades National Park and surrounding areas of south Florida.
Native_Data_Set_Environment: ASCII text files
Cross_Reference:
Citation_Information:
Originator:
Fitterman, David V.

Deszcz-Pan, Maria; Stoddard, Carl E.

Publication_Date: 1999
Title:
Results of Time-Domain Electromagnetic Soundings in Everglades National Park, Florida
Geospatial_Data_Presentation_Form: report
Series_Information:
Series_Name: USGS Open-File Report
Issue_Identification: 99-426
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: <http://sofia.usgs.gov/publications/ofr/99-426/>
Cross_Reference:
Citation_Information:
Originator:
Deszcz-Pan, M.

Fitterman, D. V., Lason, V. F.

Publication_Date: 1998
Title:
Reduction of inversion errors in helicopter EM data using auxiliary information
Geospatial_Data_Presentation_Form: report
Series_Information:
Series_Name: Exploration Geophysics
Issue_Identification: v. 29
Publication_Information:
Publication_Place: Tulsa, OK
Publisher: Society of Exploration Geophysicists
Data_Quality_Information:
Logical_Consistency_Report:
During the interpretation of the datset provided by Dighem, errors in the data became apparent which caused difficulties in obtaining reliable layered-earth inversion models. These errors were traced to problems with calibration and with the bird tow-cable length. Calibration errors were corrected using a procedure described in Deszcz-Pan et al, 1998.
Completeness_Report: unknown
Lineage:
Process_Step:
Process_Description:
During 9-14 December 1994 a helicopter electromagnetic survey was flown by Dighem, Mississauga, Ontario, Canada, over parts of Everglades National Park and surrounding areas in south Florida. The survey covered 398 square miles (1031 sq. Km) with flightlines totaling 1718 miles (2765 km). The data were collected towards the end of the wet season.
Process_Date: 1994
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: David Fitterman
Contact_Organization: U.S. Geological Survey
Contact_Position: Project Chief
Contact_Address:
Address_Type: mailing address
Address:
P. O. Box 25046

Denver Federal Center MS 964

City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: 303 236-1382
Contact_Facsimile_Telephone: 303 236-1425
Contact_Electronic_Mail_Address: fitter@usgs.gov
Process_Step:
Process_Description:
Errors discovered in the original data due to problems with calibration and with the bird tow-cable length were corrected. See the section "Additional Corrections Applied to Original Data Set" in Fitterman David V. And Deszcz-Pan, Maria, 2002, Helicopter Electromagnetic Data from Everglades National park and Surrounding Areas, Florida: Collected 9-14, December, 1994, OFR 02-101 for more information on the correction procedures.
Process_Date: Unknown
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Maria Deszcz-Pan
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing address
Address:
Box 25046

Denver Federal Center, MS 964

City: Denver
State_or_Province: CO
Postal_Code: 80225-0046
Country: USA
Contact_Voice_Telephone: 303 236-1317
Contact_Electronic_Mail_Address: maryla@usgs.gov
Spatial_Data_Organization_Information:
Indirect_Spatial_Reference: Everglades National Park
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 17
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -81
Latitude_of_Projection_Origin: 0
False_Easting: 500000
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: Coordinate Pair
Coordinate_Representation:
Abscissa_Resolution: 0.1
Ordinate_Resolution: 0.1
Planar_Distance_Units: meters
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:
For a description of the channels in the original dataset see Table 3 (<http://sofia.usgs.gov/publications/ofr/02-101/table3.html>.

For a description of the channels in the corrected dataset see Table 4 (<http://sofia.usgs.gov/publications/ofr/02-101/table4.html>)

Entity_and_Attribute_Detail_Citation: USGS personnel
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: helicopter electromagnetic data
Distribution_Liability: The data have no guarantees explicit or implied
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ASCII
Format_Information_Content:
There are two versions of the dataset. The original dataset and a corrected dataset
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://sofia.usgs.gov/publications/ofr/02-101/data.html>
Access_Instructions: Data may be downloaded from the SOFIA website
Fees: none
Metadata_Reference_Information:
Metadata_Date: 20070525
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
This page is <http://sofia.usgs.gov/metadata/sflwww/helio_mag_data.html>

U.S. Department of the Interior, U.S. Geological Survey, Center for Coastal Geology
Comments and suggestions? Contact: Heather Henkel - Webmaster
Generated by mp version 2.8.18 on Fri May 25 10:27:16 2007