10cct03_xyzi_all.txt
Metadata:
- Identification_Information:
-
- Citation:
-
- Citation_Information:
-
- Originator:
- U.S. Geological Survey - St. Petersburg Coastal and Marine Science
Center
- Title:
- 10cct03_xyzi_all.txt: this is the 50-m interpolated grid of x,y,z
values with the respective amplitude intensity value extracted fromt the
side scan sonar file 10cct01_ss_1m.tif. The result is a text file of
x,y,z,i.
- Geospatial_Data_Presentation_Form: txt
- Publication_Information:
-
- Publication_Place: St. Petersburg, FL
- Publisher:
- U.S. Geological Survey - St. Petersburg Coastal and Marine Science
Center
- Publication_Date: 20111001
- Series_Information:
-
- Series_Name: USGS Data Series Publication
- Issue_Identification: DS671
- Originator: Nancy T. DeWitt
- Originator: James G. Flocks
- Originator: William R. Pfeiffer
- Originator: James N. Gibson
- Originator: Dana S. Wiese
- Online_Linkage: <https://pubs.usgs.gov/ds/671>
- Description:
-
- Abstract:
- In April of 2010, the U.S. Geological Survey (USGS) conducted a
geophysical survey from the east end of West Ship Island, MSiss.,
extending to the middle of Dauphin Island, Ala. This survey had a dual
purpose: (1) to interlink previously conducted nearshore geophysical
surveys (shoreline to ~2 kilometers, km) with those of offshore surveys
(~2 km to ~9 km) in the ares and (2) to extend the geophysical survey to
include a portion of the Dauphin Island nearshore zone. The efforts
were part of the USGS Gulf of Mexico Science Coordination partnership with
the U.S. Army Corps of Engineers (USACE) to assist the Mississippi Coastal
Improvements Program (MsCIP) and the Northern Gulf of Mexico (NGOM)
Ecosystem Change and Hazards Susceptibility Project by mapping the shallow
geological stratigraphic framework of the Mississippi Barrier Island
Complex.
- Purpose:
- This report serves as an archive of the processed multibeam bathymetry
and side scan sonar (SSS) data. Data products herein include gridded and
interpolated digital depth surfaces, seabed surface backscatter imagery,
and x,y,z data products for both multibeam bathymetry and side scan sonar
imagery. Additional files include trackline maps, navigation files,
Geograpahic Infromation System (GIS) files, Field Activity Collection
System (FACS) logs, and formal Federal Geographic Data Committee (FGDC)
metadata. Scanned images of the handwritten FACS logs and digital FACS
logs are also provided as PDF files. Refer to the Acronyms page for
expansion of acronyms and abbreviations used in this report or hold the
cursor over an acronym for a pop-up explanation.
- Supplemental_Information:
- These geophysical surveys will provide the data necessary for
scientists to define, interpret, and provide baseline bathymetry and
seafloor habitat for this area and to aid scientists in predicting future
geomorpholocial changes of the islands with respect to climate change,
storm impact, and sea-level rise. Furthermore, these data will provide
information for barrier island restoration, particularly in Camille Cut,
and provide protection for the historical Fort Massachusetts. For more
information refer to <http://ngom.usgs.gov/gomsc/mscip/>.
- Time_Period_of_Content:
-
- Time_Period_Information:
-
- Range_of_Dates/Times:
-
- Beginning_Date: 20100417
- Ending_Date: unknown
- Beginning_Time: 20100428
- Ending_Time: unknown
- Currentness_Reference: data collection interval
- Status:
-
- Progress: Complete
- Maintenance_and_Update_Frequency: None planned
- Spatial_Domain:
-
- Bounding_Coordinates:
-
- West_Bounding_Coordinate: -88.865328
- East_Bounding_Coordinate: -88.176509
- North_Bounding_Coordinate: 30.246283
- South_Bounding_Coordinate: 30.153961
- Keywords:
-
- Theme:
-
- Theme_Keyword_Thesaurus: ISO 19115 Topic Category
- Theme_Keyword: oceans
- Theme_Keyword: elevation
- Theme_Keyword: location
- Theme:
-
- Theme_Keyword_Thesaurus: General
- Theme_Keyword: trackline
- Theme_Keyword: bathymetry
- Theme_Keyword: USGS
- Theme_Keyword: multibeam
- Theme_Keyword: RESON
- Theme_Keyword: Seabat 8125
- Theme_Keyword: Applanix POS MV
- Theme_Keyword: Trimble DSM 212
- Theme_Keyword: CORS
- Theme_Keyword:
- U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine
Science Center
- Theme_Keyword: U.S. Army Corps of Engineers (USACE) Mobile
Alabama District
- Theme_Keyword: Gulf Islands National Seashore (GUIS)
- Place:
-
- Place_Keyword_Thesaurus: GNIS
- Place_Keyword: Mississippi
- Place_Keyword: West Ship Island
- Place_Keyword: Horn Island
- Place_Keyword: Petit Bois Pass
- Place_Keyword: Dauphin Island
- Stratum:
-
- Stratum_Keyword_Thesaurus: General
- Stratum_Keyword: Water
- Temporal:
-
- Temporal_Keyword_Thesaurus: General
- Temporal_Keyword: March 2010
- Access_Constraints:
- The U. S. Geological Survey requests that it be referenced as the
originator of this dataset in any future products or research derived from
these data.
- Use_Constraints: These data are not to be used for navigation
- Point_of_Contact:
-
- Contact_Information:
-
- Contact_Person_Primary:
-
- Contact_Person: Nancy T. DeWitt
- Contact_Organization:
- U.S. Geological Survey - St. Petersburg Coastal and Marine Science
Center
- Contact_Position: Geologist
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 600 4th Street South
- City: St. Petersburg
- State_or_Province: FL
- Postal_Code: 33701
- Country: USA
- Contact_Voice_Telephone: (727) 803-8747 x3058
- Contact_Electronic_Mail_Address: ndewitt@usgs.gov
- Native_Data_Set_Environment:
- Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI
ArcMap 9.3.1.3000; 10cct03_xyzi_all.txt; 0.724 MB
- Data_Set_Credit:
- Nancy T. DeWitt, James G. Flocks, William R. Pfeiffer, James N. Gibson,
Dana Wiese
- Data_Quality_Information:
-
- Attribute_Accuracy:
-
- Attribute_Accuracy_Report:
- The accuracy of the data is determined during data collection. This
dataset is from a single cruise and therefore internally consistent.
Methods are employed to maintain data collection consistency aboard
various platforms. During mobilization, each piece of equipment (swath and
sonar) is isolated to obtain internal and external offset measurements
with respect to the survey platform. All the critical measurements are
recorded manually and digitally and entered into their respective programs
for calibration. Once calibration is complete and calibration status is
considered acceptable, then survey operations commence. HYPACK, Inc.,
HYPSWEEP version 10 was used for the multibeam data acquisition, system
calibration,and data post-processing. A patch test was performed at the
beginning of the survey to calibrate the SEABAT 8125 and included latency,
roll, pitch, and yaw. This involved collecting multibeam data along lines
over a sloping surface for the latency, pitch, and yaw tests and over a
flat surface for the roll test. The resulting offsets from the patch test
were applied to the hardware configuration file prior to survey data
acquisition. The Applanix POS MV is not a gyro and therefore did not need
calibration. The RESON SeaBat 8125 multibeam transducer head was mounted
on a retractable strut-arm that is lowered between the catamaran hulls.
Offsets between the sonar head and the DGPS antennas were measured and
entered into the respective program. DGPS is always implemented for
navigational accuracy. During data acquisition, the differentially
corrected positions supplied through the Trimble DSM 212 interface were
recorded in the WGS84 datum. Ship heading and motion (roll, pitch, heave)
were measured by the Applanix POS MV motion unit. Sound velocity was
recorded at the multibeam sonar head. Additional sound velocity casts were
conducted at the start and finish of each survey day and as needed
throughout the survey. All multibeam bathymetry data were collected using
the RESON SeaBat 8125. All side scan sonar data were collected using the
Klein 3900 system.
- Positional_Accuracy:
-
- Horizontal_Positional_Accuracy:
-
- Horizontal_Positional_Accuracy_Report:
- Differential navigation was acquired using a local National Geodetic
Survey (NGS) Continuously Operating Reference Station (CORS) beacon that
broadcasts carrier phase and code range measurements that are captured
in real-time using the Applanix Position and Orientation System for
Marine Navigation (POS MV). The multibeam bathymetry and side scan sonar
data were collected simultaneously using HYSWEEP version 10 and SonarPro
version 11.3, respectively. The multibeam bathymetry and the side scan
sonar data were collected with separate instruments but utilized the
same navigation string from the Applanix POS MV. Unless noted, all DGPS
data are referenced to WGS84.
- Quantitative_Horizontal_Positional_Accuracy_Assessment:
-
- Horizontal_Positional_Accuracy_Value: 10
- Horizontal_Positional_Accuracy_Explanation: centimeters
- Lineage:
-
- Process_Step:
-
- Process_Description:
- This file is the extracted amplitude intensity values from the side
scan sonar file 10cct03_ss_1m.tif using the x,y,z data points from file
rm10cct03_mb_50m.tif. This was done using ArcMap version 9.3.1
extraction by sample tool. The the resultant dbf file was extported as a
table using XTools Pro version 6.
- Process_Date: 2010
- Process_Contact:
-
- Contact_Information:
-
- Contact_Person_Primary:
-
- Contact_Person: Nancy T. DeWitt
- Contact_Organization:
- U.S. Geological Survey St. Petersburg Coastal and Marine
Science Center
- Contact_Position: Geologist
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 600 4th Street South
- City: St. Petersburg
- State_or_Province: FL
- Postal_Code: 33701
- Country: USA
- Contact_Voice_Telephone: (727) 803-8747 x3058
- Contact_Electronic_Mail_Address:
ndewitt@usgs.gov
- Completeness_Report:
- This is a complete processed multibeam bathymetry (x,y,z) with
respective amplitude intensity values (i) in text format. These data provide
a continuous and complete surface; however, there may in some cases be data
missing and inconsistent with reported tracklines. This is directly due to
the exclusion of poor data or instrument failures.
- Logical_Consistency_Report:
- This dataset was completed on the same research vessel platform.
- Spatial_Data_Organization_Information:
-
- Direct_Spatial_Reference_Method: Vector
- Point_and_Vector_Object_Information:
-
- SDTS_Terms_Description:
-
- SDTS_Point_and_Vector_Object_Type: String
- Point_and_Vector_Object_Count: 44
- Spatial_Reference_Information:
-
- Horizontal_Coordinate_System_Definition:
-
- Planar:
-
- Planar_Coordinate_Information:
-
- Planar_Coordinate_Encoding_Method: row and column
- Coordinate_Representation:
-
- Abscissa_Resolution: 50.000000
- Ordinate_Resolution: 50.000000
- Planar_Distance_Units: meters
- Grid_Coordinate_System:
-
- Grid_Coordinate_System_Name: Universal Transverse
Mercator
- Universal_Transverse_Mercator:
-
- UTM_Zone_Number: 16
- Transverse_Mercator:
-
- Scale_Factor_at_Central_Meridian: 0.999600
- Longitude_of_Central_Meridian: -87.000000
- Latitude_of_Projection_Origin: 0.000000
- False_Easting: 500000.000000
- False_Northing: 0.000000
- Geodetic_Model:
-
- Horizontal_Datum_Name: D_WGS_1984
- Ellipsoid_Name: WGS_1984
- Semi-major_Axis: 6378137.000000
- Denominator_of_Flattening_Ratio: 298.25722356300003
- Vertical_Coordinate_System_Definition:
-
- Depth_System_Definition:
-
- Depth_Datum_Name: Mean lower low water
- Depth_Resolution: 0.01
- Depth_Distance_Units: meters
- Depth_Encoding_Method: Explicit depth coordinate included
with horizontal coordinates
- Entity_and_Attribute_Information:
-
- Overview_Description:
-
- Entity_and_Attribute_Detail_Citation: 10cct03_xyzi.txt
- Entity_and_Attribute_Overview:
- This is a text file of x,y,z,i in which x and y are location, z is
water depth in meters, and i is amplituded intensity value from side scan
sonar. The text file was created in ArcMap version 9.3.1.
- Detailed_Description:
-
- Entity_Type:
-
- Entity_Type_Label: 10cct03_xyzi_all.txt
- Entity_Type_Definition_Source: text editor, WordPad Version
5.1
- Entity_Type_Definition:
- text file that is the result of marrying file 10cct03_mb_50m.tif
with 10cct03_ss_1m.tif and exporting the results of x,y,z,i in text
format.
- Attribute:
-
- Attribute_Label: x
- Attribute_Definition: WGS84 UTM 16N
- Attribute_Definition_Source: World Geodtic System of 1984
- Attribute_Domain_Values:
-
- Range_Domain:
-
- Range_Domain_Minimum: 320534.08
- Range_Domain_Maximum: 386669.96
- Attribute:
-
- Attribute_Label: y
- Attribute_Definition: WGS84 UTM 16N
- Attribute_Definition_Source: World Geodtic System of 1984
- Attribute_Domain_Values:
-
- Range_Domain:
-
- Range_Domain_Minimum: 3338490.76
- Range_Domain_Maximum: 3346637.45
- Attribute:
-
- Attribute_Label: z
- Attribute_Definition: Mean Low or Lower Water
- Attribute_Definition_Source: water level datum
- Attribute_Domain_Values:
-
- Range_Domain:
-
- Range_Domain_Minimum: -14.23
- Range_Domain_Maximum: -2.45
- Attribute_Units_of_Measure: meters
- Attribute_Measurement_Resolution: 0.01
- Attribute:
-
- Attribute_Label: i
- Attribute_Definition: amplitude intensity
- Attribute_Definition_Source: Klein L3900 side scan towfish
- Attribute_Domain_Values:
-
- Range_Domain:
-
- Range_Domain_Minimum: 0
- Range_Domain_Maximum: 252
- Attribute_Units_of_Measure: meters
- Attribute_Measurement_Resolution: 1
- Distribution_Information:
-
- Distributor:
-
- Contact_Information:
-
- Contact_Person_Primary:
-
- Contact_Person: Jim Flocks
- Contact_Organization:
- U.S. Geological Survey St. Petersburg Coastal and Marine Science
Center
- Contact_Electronic_Mail_Address: jflocks@usgs.gov
- Contact_Position: Geologist
- Contact_Voice_Telephone: (727) 803-8747 x3012
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 600 4th Street South
- City: St. Petersburg
- State_or_Province: FL
- Postal_Code: 33701
- Country: USA
- Resource_Description: Downloadable Data
- Distribution_Liability:
- This DVD publication was prepared by an agency of the United States
Government. Although these data have been processed successfully on a
computer system at the U.S. Geological Survey, no warranty expressed or
implied is made regarding the display or utility of the data on any other
system, nor shall the act of distribution imply any such warranty. The U.S.
Geological Survey shall not be held liable for improper or incorrect use of
the data described and (or) contained herein. Reference herein to any
specific commercial product, process, or service by trade name, trademark,
manufacturer, or otherwise does not constitute or imply its endorsement,
recommendation, or favoring by the United States Government or any agency
thereof.
- Standard_Order_Process:
-
- Digital_Form:
-
- Digital_Transfer_Information:
-
- Transfer_Size: 0.724
- Format_Name: text
- File_Decompression_Technique: no compression applied
- Digital_Transfer_Option:
-
- Offline_Option:
-
- Offline_Media: DVD
- Recording_Format: CDR/DVD
- Online_Option:
-
- Computer_Contact_Information:
-
- Network_Address:
-
- Network_Resource_Name: <https://pubs.usgs.gov/ds/671>
- Fees: none
- Technical_Prerequisites: none
- Available_Time_Period:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 20111001
- Time_of_Day: unknown
- Custom_Order_Process: none
- Metadata_Reference_Information:
-
- Metadata_Date: 20111001
- Metadata_Contact:
-
- Contact_Information:
-
- Contact_Person_Primary:
-
- Contact_Person: Nancy T. DeWitt
- Contact_Organization:
- U.S. Geological Survey St. Petersburg Coastal and Marine Science
Center
- Contact_Position: Geologist
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 600 4th Street South
- City: St. Petersburg
- State_or_Province: FL
- Postal_Code: 33701
- Country: USA
- Contact_Voice_Telephone: (727) 803-8747 x3058
- Contact_Electronic_Mail_Address: ndewitt@usgs.gov
- Metadata_Standard_Name: FGDC Content Standards for Digital
Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
- Metadata_Time_Convention: local time
- Metadata_Security_Information:
-
- Metadata_Security_Classification: Unclassified
- Metadata_Security_Classification_System: none
- Metadata_Security_Handling_Description: none
- Metadata_Access_Constraints:
- The U.S. Geological Survey requests that it be referenced as the
originator of this dataset in any future products or research derived from
these data.
- Metadata_Use_Constraints:
- The U.S. Geological Survey requests that it be referenced as the
originator of this dataset in any future products or research derived from
these data.
- Metadata_Extensions:
-
- Online_Linkage: unknown
- Profile_Name: unknown
Generated by mp
version 2.9.14 on Tue Feb 21 15:37:36 2012