Item Identification

Title: Singlebeam_Timor_Entities
Status: Completed
Abstract:

Singlebeam bathymetry for Timor-Leste

Entity Information

Entity Type: Data Table
Active Version?: Yes
Description:

Singlebeam bathymetry for Timor-Leste

Data Attributes

Attribute Summary

Rubric Score Primary Key? Name Type Description
100
Region TEXT 2012: The region location in the pacific where surveys were conducted (Coral Triangle)
100
Island TEXT 2012: The island location in the pacific where surveys were conducted (Timor-leste)
100
LocalTime DATETIME 2012: GMT (Greenwich Mean Time) +9 for local time in Timor-leste (mm/dd/yyyy hh:mm)
100
GMTime DATETIME 2012: Greenwich Mean Time (mm/dd/yyyy hh:mm)
100
Latitude NUMERIC 2012: Y-coordinate in decimal degrees
100
Longitude NUMERIC 2012: X-coordinate in decimal degrees
100
SeafloorDepth NUMERIC 2012: Depth in meters, 0 to -30m
100
FixType NUMERIC 2012: Type of position fix (0 = No fix, 1 = GPS fix, 2 = DGPS fix)
100
NumSatellites NUMERIC 2012: number of satellites in use (tracked by the GPS at the time of the position was fixed/recorded)
100
HDOP NUMERIC 2012: horizontal dilution of precision, or the relative accuracy of the horizontal position. A measure of the geometric quality of a GPS satellite configuration in the sky. HDOP is a factor in determining the relative accuracy of a horizontal position. The smaller the DOP number, the better the geometry.
100
DATETIME DATETIME 2013: the date and time (GMT) in mm/dd/yyyy hh:mm:ss format
100
SEC NUMERIC 2013: sub-seconds (ss.0)
100
X NUMERIC 2013: Longitude in decimal degrees
100
Y NUMERIC 2013: Latitude in decimal degrees
100
Z NUMERIC 2013: Unknown
100
TYPE TEXT 2013: Type of record, D = Depth only, L= Depth and Location (depth is linked to GPS fix). There are two 'type = D' records for every 'type = L' record, because the sonar pings every half second, which is more frequent than the GPS.
100
TIDE NUMERIC 2013: Not used
100
DEPTH NUMERIC 2013: corrected depth in meters (20 cm or 30 cm correction applied, distance from instrument to surface of water)
100
QA INTEGER 2013: Records with a type = L indicate the depth record includes the GPS location and has a QA = 1 (NMEA tag for GPS fix). For the 'type=D' records, the higher the QA, the better the return signal strength. QA=70 is low signal strength (not as good), QA = 130 is high return signal strength (better).

Attribute Details

Region

CC ID: 705675
Data Storage Type: TEXT
Required: No
Primary Key: No
Status: Active
Description:

2012: The region location in the pacific where surveys were conducted (Coral Triangle)

Island

CC ID: 705676
Data Storage Type: TEXT
Required: No
Primary Key: No
Status: Active
Description:

2012: The island location in the pacific where surveys were conducted (Timor-leste)

LocalTime

CC ID: 705677
Data Storage Type: DATETIME
Required: No
Primary Key: No
Status: Active
Description:

2012: GMT (Greenwich Mean Time) +9 for local time in Timor-leste (mm/dd/yyyy hh:mm)

GMTime

CC ID: 705678
Data Storage Type: DATETIME
Required: No
Primary Key: No
Status: Active
Description:

2012: Greenwich Mean Time (mm/dd/yyyy hh:mm)

Latitude

CC ID: 705679
Data Storage Type: NUMERIC
Required: No
Primary Key: No
Status: Active
Description:

2012: Y-coordinate in decimal degrees

Longitude

CC ID: 705680
Data Storage Type: NUMERIC
Required: No
Primary Key: No
Status: Active
Description:

2012: X-coordinate in decimal degrees

SeafloorDepth

CC ID: 705681
Data Storage Type: NUMERIC
Required: No
Primary Key: No
Status: Active
Description:

2012: Depth in meters, 0 to -30m

FixType

CC ID: 705682
Data Storage Type: NUMERIC
Required: No
Primary Key: No
Status: Active
Description:

2012: Type of position fix (0 = No fix, 1 = GPS fix, 2 = DGPS fix)

NumSatellites

CC ID: 705683
Data Storage Type: NUMERIC
Required: No
Primary Key: No
Status: Active
Description:

2012: number of satellites in use (tracked by the GPS at the time of the position was fixed/recorded)

HDOP

CC ID: 705693
Data Storage Type: NUMERIC
Required: No
Primary Key: No
Status: Active
Description:

2012: horizontal dilution of precision, or the relative accuracy of the horizontal position. A measure of the geometric quality of a GPS satellite configuration in the sky. HDOP is a factor in determining the relative accuracy of a horizontal position. The smaller the DOP number, the better the geometry.

DATETIME

CC ID: 705704
Data Storage Type: DATETIME
Required: No
Primary Key: No
Status: Active
Description:

2013: the date and time (GMT) in mm/dd/yyyy hh:mm:ss format

SEC

CC ID: 705705
Data Storage Type: NUMERIC
Required: No
Primary Key: No
Status: Active
Description:

2013: sub-seconds (ss.0)

X

CC ID: 705706
Data Storage Type: NUMERIC
Required: No
Primary Key: No
Status: Active
Description:

2013: Longitude in decimal degrees

Y

CC ID: 705707
Data Storage Type: NUMERIC
Required: No
Primary Key: No
Status: Active
Description:

2013: Latitude in decimal degrees

Z

CC ID: 705708
Data Storage Type: NUMERIC
Required: No
Primary Key: No
Status: Active
Description:

2013: Unknown

TYPE

CC ID: 705724
Data Storage Type: TEXT
Required: No
Primary Key: No
Status: Active
Description:

2013: Type of record, D = Depth only, L= Depth and Location (depth is linked to GPS fix). There are two 'type = D' records for every 'type = L' record, because the sonar pings every half second, which is more frequent than the GPS.

TIDE

CC ID: 705725
Data Storage Type: NUMERIC
Required: No
Primary Key: No
Status: Active
Description:

2013: Not used

DEPTH

CC ID: 705726
Data Storage Type: NUMERIC
Required: No
Primary Key: No
Status: Active
Description:

2013: corrected depth in meters (20 cm or 30 cm correction applied, distance from instrument to surface of water)

QA

CC ID: 705727
Data Storage Type: INTEGER
Required: No
Primary Key: No
Status: Active
Description:

2013: Records with a type = L indicate the depth record includes the GPS location and has a QA = 1 (NMEA tag for GPS fix). For the 'type=D' records, the higher the QA, the better the return signal strength. QA=70 is low signal strength (not as good), QA = 130 is high return signal strength (better).

Catalog Details

Catalog Item ID: 50856
Metadata Record Created By: Annette M DesRochers
Metadata Record Created: 2017-12-21 22:19+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2019-06-04 13:14+0000
Metadata Record Published: 2018-04-27
Owner Org: PIFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2019-04-28