Backscatter additional metadata
Created 2024-02-07

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Systemtype
Data were recorded with a NORBIT iWBMS mounted on the vessel Vidar II using a custom pole mount. 
RTK navigation information was acquired at a cm-resolution, and the maps were processed to a resolution of 1-3 m, depending on water depth.

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Survey Protocol (tab delimited)
sTime and eTime refere to the recording file timestamp

Datum	Messtag	sTime[UTC]	eTime[UTC]	Setting	Frequency[kHZ]	BeamAngle	BeamAnz	Direction
----	----	----	----	----	----	----	----	----
05.09.2023	Day1	09-57-05	13-16-28	Multi-detect	400	Equi-Dist	512	N-S
05.09.2023	Day1	10-39-16	10-50-33	Multi-detect	400kHz	Equi-Dist	512	N-S
06.09.2023	Day2	12-30-05	14-00-28	Multi-frequency	190and370	Equiangular	256	N-S
07.09.2023	Day3	08-09-49	10-46-07	Multi-frequency	190and370	Equiangular	256	N-S
07.09.2023	Day3	11-11-41	12-45-42	Multi-detect	400kHz	Equi-Dist	512	N-S
07.09.2023	Day3	13-13-42	14-22-42	Multi-detect	400kHz	Equi-Dist	512	E-W
08.09.2023	Day4	07-41-35	07-59-00	Multifrequency	190and370	Equiangular	256	N-S
08.09.2023	Day4	08-04-27	09-19-45	Multi-detect	400kHz	Equi-Dist	512	E-W

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M1
	
General	
Name	OC_2023_TEN_MBES_BS_M1_EPSG32628
Total size	18.22 MB
		
Information from provider	
Extent	318757.2500000000000000,3120165.5000000000000000 : 320284.7500000000000000,3122380.0000000000000000
Width	6110
Height	8858
Data type	Byte - Eight bit unsigned integer
GDAL Driver Metadata	GeoTIFF
Compression	LZW
Dimensions	X: 6110 Y: 8858 Bands: 2
Origin	318757.2500000000000000,3122380.0000000000000000
Pixel Size	0.25,-0.25
	
Coordinate Reference System (CRS)	
Name	EPSG:32628 - WGS 84 / UTM zone 28N
Units	meters
Method	Universal Transverse Mercator (UTM)
Celestial body	Earth
Accuracy	Based on World Geodetic System 1984 ensemble (EPSG:6326), which has a limited accuracy of at best 2 meters.
Reference	Dynamic (relies on a datum which is not plate-fixed)

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M2	

General	
Name	OC_2023_TEN_MBES_BS_M2_EPSG32628
Total size	9.72 MB
	
Information from provider	
Extent	318232.8000000000465661,3121318.0000000000000000 : 319306.4000000000232831,3122028.6000000000931323
Width	5368
Height	3553
Data type	Byte - Eight bit unsigned integer
GDAL Driver Metadata	GeoTIFF
Compression	LZW
Dimensions	X: 5368 Y: 3553 Bands: 2
Origin	318232.8000000000465661,3122028.6000000000931323
Pixel Size	0.1999999999999956535,-0.2000000000000262124
	
Coordinate Reference System (CRS)	
Name	EPSG:32628 - WGS 84 / UTM zone 28N
Units	meters
Method	Universal Transverse Mercator (UTM)
Celestial body	Earth
Accuracy	Based on World Geodetic System 1984 ensemble (EPSG:6326), which has a limited accuracy of at best 2 meters.
Reference	Dynamic (relies on a datum which is not plate-fixed)

#-----------------------------------------------------------------------------------------------------------------------
M3	

General	
Name	OC_2023_TEN_MBES_BS_M3_EPSG32628
Total size	11.17 MB
		
Information from provider		
Extent	319033.4000000000232831,3119800.2000000001862645 : 320317.4000000000232831,3120638.4000000003725290
Width	6420
Height	4191
Data type	Byte - Eight bit unsigned integer
GDAL Driver Metadata	GeoTIFF
Compression	LZW
Dimensions	X: 6420 Y: 4191 Bands: 2
Origin	319033.4000000000232831,3120638.4000000003725290
Pixel Size	0.2000000000000000111,-0.2000000000000444478
		
Coordinate Reference System (CRS)	
Name	EPSG:32628 - WGS 84 / UTM zone 28N
Units	meters
Method	Universal Transverse Mercator (UTM)
Celestial body	Earth
Accuracy	Based on World Geodetic System 1984 ensemble (EPSG:6326), which has a limited accuracy of at best 2 meters.
Reference	Dynamic (relies on a datum which is not plate-fixed)

#-----------------------------------------------------------------------------------------------------------------------
M4	

General		
Name	OC_2023_TEN_MBES_BS_M4_EPSG32628
Total size	16.66 MB
	
Information from provider	
Extent	318261.2500000000000000,3119926.0000000000000000 : 319614.2500000000000000,3121904.5000000000000000
Width	5412
Height	7914
Data type	Byte - Eight bit unsigned integer
GDAL Driver Metadata	GeoTIFF
Compression	LZW
Dimensions	X: 5412 Y: 7914 Bands: 2
Origin	318261.2500000000000000,3121904.5000000000000000
Pixel Size	0.25,-0.25
		
Coordinate Reference System (CRS)		
Name	EPSG:32628 - WGS 84 / UTM zone 28N
Units	meters
Method	Universal Transverse Mercator (UTM)
Celestial body	Earth
Accuracy	Based on World Geodetic System 1984 ensemble (EPSG:6326), which has a limited accuracy of at best 2 meters.
Reference	Dynamic (relies on a datum which is not plate-fixed)
