Polyline Shapefile connecting Photo point locations from cruise SUN03002

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: David C. Twichell

Originator: Dann Blackwood

Originator: Robert B. Halley

Publication_Date: 2004

Title:

Polyline Shapefile connecting Photo point locations from cruise SUN03002

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage: <http://pubs.usgs.gov/of/2004/1228/photolines.zip>

Larger_Work_Citation:

Citation_Information:

Originator: VeeAnn A. Cross

Originator: Dann S. Blackwood

Originator: Robert B. Halley

Originator: David C. Twichell

Publication_Date: 2004

Title: Bottom Photographs from the Pulley Ridge Deep Coral Reef

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 2004-1228

Publication_Information:

Publication_Place: Woods Hole Science Center, Woods Hole, MA

Publisher: U.S. Geological Survey

Online_Linkage: <http://pubs.usgs.gov/of/2004/1228>

Description:

Abstract:

Pulley Ridge is a series of drowned barrier islands that extend over 100 km in 60-100 m water depths. This drowned ridge is located on the Florida Platform in the southeastern Gulf of Mexico about 250 km west of Cape Sable, Florida. This barrier island chain formed during the initial stage of the Holocene marine transgression. These islands were then submerged and left abandoned near the outer edge of the Florida Platform. The southern portion of Pulley Ridge hosts zooxanthellate scleractinian corals, green, red and brown macro algae, and a mix of deep and typically shallow-water tropical fishes. This reef community is in unusually deep water, and its extent and the controls on its distribution were unknown. To address these questions scientists from the U.S. Geological Survey Coastal and Marine Geology Program in cooperation with scientists from the University of South Florida Department of Marine Sciences have completed a detailed mapping of the southernmost 35 km of Pulley Ridge. The area was mapped using multibeam bathymetry, sidescan-sonar imagery, and high-resolution seismic-reflection profiling to define the geologic framework on which the reef is established. Submersible dives, remotely operated vehicle (ROV) transects, and transects of bottom photographs and video were collected to identify the corals and to map their distribution. This extensive suite of data has been compiled and preliminary analysis of the data suggests that the reefs are not tied to the ridge system, but instead are more broadly distributed. Whether reef distribution is controlled by oceanographic conditions or by subtle differences in the substrate that overlies the barrier island system is unclear, and are topics of continued research.

Purpose:

This polyline shapefile essentially "connects the dots" of the photo point locations.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20030425

Ending_Date: 20030430

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -83.742300

East_Bounding_Coordinate: -83.644173

North_Bounding_Coordinate: 24.955967

South_Bounding_Coordinate: 24.699883

Keywords:

Theme:

Theme_Keyword_Thesaurus: General

Theme_Keyword: Coastal and Marine Geology Program

Theme_Keyword: navigation

Theme_Keyword: OF 2004-1228

Theme_Keyword: Open-File Report

Theme_Keyword: polyline

Theme_Keyword: reef

Theme_Keyword: SeaBOSS

Theme_Keyword: shapefile

Theme_Keyword: U.S. Geological Survey

Theme_Keyword: USGS

Theme_Keyword: Woods Hole Science Center

Theme_Keyword: field activity identifier S-1-03-FL

Theme_Keyword: field activity serial number 03002

Place:

Place_Keyword_Thesaurus: General

Place_Keyword: Florida

Place_Keyword: Florida Shelf

Place_Keyword: Gulf of Mexico

Place_Keyword: North America

Place_Keyword: Pulley Ridge

Place_Keyword: United States

Access_Constraints: None.

Use_Constraints:

The U.S. Geological Survey must be referenced as the originator of the dataset in any future products or research derived from these data.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: David C. Twichell

Contact_Organization: U.S. Geological Survey

Contact_Position: Oceanographer

Contact_Address:

Address_Type: mailing and physical address

Address: 384 Woods Hole Rd.

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543-1598

Contact_Voice_Telephone: (508) 548-8700 x2266

Contact_Facsimile_Telephone: (508) 457-2310

Contact_Electronic_Mail_Address: dtwichell@usgs.gov

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.2.0.700

Data_Quality_Information:

Lineage:

Process_Step:

Process_Description:

Navigation was acquired aboard the boat with a Differential GPS system. This navigation was recorded to a computer, and also as part of the video image. Still photos had a nine digit number recorded on them. The first 3 digits are teh image number, the next 2 are the year, the next 2 are the hour, and the final 2 are the minute. The image number recorded on the still photo does not necessarily correspond to the image number given to the digitized image of the photo.

Process_Step:

Process_Description:

Negatives from the still photos are sent to a place in California to be digitized and written to CD. What is returned is a series of CD's, each with about 100 photos on it. A roll of film might span 3 cd's. Each file is naming convention is as follows: IMG0001.PCD, IMG0002.PCD... Each CD starts with IMG0001, therefore there are duplicate filenames, distinguished only by the CD number.

Process_Step:

Process_Description:

An excel spreadsheet was created which included the following information for each photo: CD#, Roll#, Image# (as appears on the CD), Photo#, year, month, day, hour, minute, dive #. The hour and minute information (read from the photo) could then be used to merge with the navigation data recorded on computer. Navigation is recorded to the second, yet the time on the photos only goes as far as minute. If one photo was taken in a minute, the navigation time used with 30 seconds after the start of the minute. More than one photo per minute, the following seconds of the minute were used: 2 photos: seconds 15 and 45 3 photos: seconds 15, 30, and 45 4 photos: seconds 10, 20, 30, 40 5 photos: seconds 10, 20, 30, 40, 50 This technique was used on dives 13 and 14. For dives 1-12, navigation was pulled from the video tape based on the presense of the strobe flash associated with a still photo being acquired. This navigation information was entered directly into the excel spreadsheet.

Process_Step:

Process_Description:

The excel spreadsheet was exported as a comma delimited text file and imported into ArcView 3.2a as a table, and subsequently an even theme. Visual inspection of the data points was used to find outliers and fix the navigation in the excel spreadsheet. Based on the time of the photo, and appropriate navigation fix could be pulled from the computer recorded navigation file. In addition to bad fixes, missing navigation information was fixed in the same manner.

Process_Step:

Process_Description:

Once the navigation in the excel spreadsheets was fixed, a new comma delimited text file was exported, imported into ArcView 3.2a as a table, added as an event theme and converted to a shapefile.

Process_Step:

Process_Description: Additional attribute columns were added and filled.

Process_Step:

Process_Description:

The photopoints were turned into a polyline shapefile using an avenue script that "connects the dots" based on an attribute. In this case, the attribute was the dive number.

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: 14

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000000

Longitude_Resolution: 0.000000

Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: photolines

Attribute:

Attribute_Label: FID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: ID

Attribute_Definition: Film roll number.

Attribute_Definition_Source: Scientist.

Attribute_Domain_Values:

Unrepresentable_Domain: character set

Attribute:

Attribute_Label: LINENAME

Attribute_Definition: CD number that contains the digitized photo.

Attribute_Definition_Source: Digitizing company.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2444

Range_Domain_Maximum: 2869

Attribute:

Attribute_Label: ROLL__

Attribute_Definition: Image number for the photo on the CD.

Attribute_Definition_Source: Scientist.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1

Range_Domain_Maximum: 100

Attribute:

Attribute_Label: CD__

Attribute_Definition:

Photo number as recorded on the actual photo in the red number code. The numbers are sequential, starting over at 1 for each roll of film. Some numbers are missing because those images were not digitizable.

Attribute_Definition_Source: Technician.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3

Range_Domain_Maximum: 252

Attribute:

Attribute_Label: YEAR

Attribute_Definition: Year the photo was acquired.

Attribute_Definition_Source: Scientist.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 2003

Attribute:

Attribute_Label: MONTH

Attribute_Definition: Month the photo was acquired.

Attribute_Definition_Source: Scientist.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 4

Attribute:

Attribute_Label: DAY

Attribute_Definition: Day the photo was acquired.

Attribute_Definition_Source: Scientist.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 25

Range_Domain_Maximum: 30

Attribute:

Attribute_Label: DIVE__

Attribute_Definition: Hour the photo was acquired.

Attribute_Definition_Source: Scientist.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 10

Range_Domain_Maximum: 21

Attribute:

Attribute_Label: TAPE

Attribute_Definition: Minute the photo was acquired. Recorded as a string field.

Attribute_Definition_Source: Scientist.

Attribute_Domain_Values:

Unrepresentable_Domain: character set

Attribute:

Attribute_Label: DIVE__

Attribute_Definition: Dive number referring to the SeaBoss deployment.

Attribute_Definition_Source: Scientist.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1

Range_Domain_Maximum: 14

Attribute:

Attribute_Label: LONGITUDE

Attribute_Definition: Longitude of the acquired photo.

Attribute_Definition_Source: Scientist.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -83.7423

Range_Domain_Maximum: -83.644173

Attribute_Units_of_Measure: decimal degrees

Attribute:

Attribute_Label: LATITUDE

Attribute_Definition: Latitude of the acquired photo.

Attribute_Definition_Source: Scientist.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 24.699883

Range_Domain_Maximum: 24.955967

Attribute_Units_of_Measure: decimal degrees

Attribute:

Attribute_Label: LAT_DEG

Attribute_Definition: Degree of latitude of the acquired photo.

Attribute_Definition_Source: Scientist.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 24

Attribute:

Attribute_Label: LAT__MIN_

Attribute_Definition: Decimal minutes of latitude of the acquired photo.

Attribute_Definition_Source: Scientist.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 41.993

Range_Domain_Maximum: 57.358

Attribute_Units_of_Measure: decimal minutes

Attribute:

Attribute_Label: LONG__DEG_

Attribute_Definition: Degree of longitude of the acquired photo.

Attribute_Definition_Source: Scientist.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: -83

Attribute:

Attribute_Label: LONG__MIN_

Attribute_Definition: Decimal minutes of longitude of the acquired photo.

Attribute_Definition_Source: Scientist.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 38.65039

Range_Domain_Maximum: 44.538

Attribute_Units_of_Measure: decimal minutes

Attribute:

Attribute_Label: DEPTH__M_

Attribute_Definition:

Depth of the SeaBoss system based on a pressure transducer mounted to the frame. Values recorded as positive values.

Attribute_Definition_Source: Scientist.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 57.22

Range_Domain_Maximum: 79.90

Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: TAPE

Attribute_Definition:

Refers to the video tape number that was being recorded when the photo was acquired.

Attribute_Definition_Source: Scientist.

Attribute_Domain_Values:

Unrepresentable_Domain: character set

Attribute:

Attribute_Label: COMMENT

Attribute_Definition: Miscellaneous comments pertaining to the photo.

Attribute_Definition_Source: Scientist.

Attribute_Domain_Values:

Unrepresentable_Domain: character set

Attribute:

Attribute_Label: RECNO

Attribute_Definition:

Unique number assigned to each photo to aid in finding missing information.

Attribute_Definition_Source: Processor.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 1136

Attribute:

Attribute_Label: DEPTH_SWAT

Attribute_Definition:

Depth at that point based on the swath bathymetry grid. Values recorded as negative.

Attribute_Definition_Source: Scientist.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -81.48

Range_Domain_Maximum: -62.86

Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: HOTLINK

Attribute_Definition:

Variable and pathname indicating the JPEG image that corresponds to the photo acquired at that location.

Attribute_Definition_Source: Processor.

Attribute_Domain_Values:

Unrepresentable_Domain: character set

Overview_Description:

Entity_and_Attribute_Overview:

Of note: the CD numbers are not necessarily in order of the photo numbers. For instance, the first part of the first roll of film was placed on CD 2865, while the last part of the last roll of film was placed on CD 2444. Within a roll of film, the CD number increment sequentially. The separated latitude degrees, decimal minutes and longitude degrees and decimal minutes are recorded for the points where navigation came from the video tapes.

Two depth values exist in the attribute table. One is based on a depth transducer placed on the SeaBOSS system. Because the system is above the seafloor when the image is acquired, this does not reflect water depth - but is probably fairly close. (Attribute: Depth_m_). The other depth attribute (Depth_swat) was derived by extract the grid cell value from the swath bathymetry grid at the point location.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: David C. Twichell

Contact_Organization: U.S. Geological Survey

Contact_Position: Oceanographer

Contact_Address:

Address_Type: mailing and physical address

Address: 384 Woods Hole Rd.

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543-1598

Contact_Voice_Telephone: (508) 548-8700 x2266

Contact_Facsimile_Telephone: (508) 457-2310

Contact_Electronic_Mail_Address: dtwichell@usgs.gov

Resource_Description: Downloadable Data

Distribution_Liability:

These data were prepared by an agency of the United States Government. Neither the United States government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States government or any agency thereof. Although all data published in this report have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and/or the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of this data, software, or related materials.

Metadata_Reference_Information:

Metadata_Date: 20040629

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: VeeAnn A. Cross

Contact_Organization: U.S. Geological Survey

Contact_Position: Marine Geologist

Contact_Address:

Address_Type: mailing and physical address

Address: 384 Woods Hole Rd.

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543-1598

Contact_Voice_Telephone: (508) 548-8700 x2251

Contact_Facsimile_Telephone: (508) 457-2310

Contact_Electronic_Mail_Address: vatnipp@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_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile