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Journal for accession number: 	0039428
Created on:                     2016-12-20
By:				Fred Katz, National Centers for Environmental Information

Source: These data were sent to NCEI by the NOAA Office of Exploration on 5
MiniDV tapes.


Action(s): Video data on each MiniDV tape was transferred into Apple Final Cut
Pro in a real time capture process. From Final Cut Pro, a high-resolution
preservation file was created in a dv wrapper format, and exported into 
the subdirectory data/0-data/Islands_The_Stream-2001/. Each dv file was 
identified by the .dv file format extension.


The dv files were then transcoded with the ffmpeg command line utility to
create low-resolution access files in the Apple QuickTime wrapper format, 
which were copied into data/1-data/Cruise_ID-year/. Each QuickTime file was
identified by the .mov file format extension.


Files: 
about/ 
This directory contains files generated by NCEI with ancillary information about
the data submission.

0039428_preview.png -
  Dive track map for this dive showing transects and sample collection, extracted 
  from original dive summary report pdf. Some white horizontal lines across the image 
  may be visible due to artifacts from original pdf creation. 


data/0-data/Islands_in_the_Stream-2001
This directory contains the high resolution videos which were transferred to dv
format from the originally submitted MiniDV tapes.

  Clelia-621-1_3CHIP.dv
  Clelia-621-1_SIT.dv
  Clelia-621-2_3CHIP.dv
  Clelia-621-2_SIT.dv
  Clelia-621-3_3CHIP.dv

These files use the following  naming convention:
vehicleID-diveNumber-tapeSetNumber_cameraType.dv 

where tapeSetNumber notates that multiple cameras captured the same temporal
sequence, and where cameraType notates the specific camera used, 
  3CHIP indicating a 3-CCD camera
  SIT indicating a Silicon Intensified Target Low Light Level camera 


data/1-data/Islands_in_the_Stream-2001
This directory contains the low resolution video files which were transcoded by
NCEI to the QuickTime format from the NCEI-created dv files.

  IslandsInTheStream2001_Dive621_Tape01-1_3CHIP_low.mov
  IslandsInTheStream2001_Dive621_Tape02-1_SIT_low.mov
  IslandsInTheStream2001_Dive621_Tape03-2_3CHIP_low.mov
  IslandsInTheStream2001_Dive621_Tape04-2_SIT_low.mov
  IslandsInTheStream2001_Dive621_Tape05-3_3CHIP_low.mov


Unlike the high-res video files in 0-data/, these transcoded files use an
alternate naming convention for physical media that is consistent with other,
later video data from the same data provider: 

  CruiseID_DiveID_TapeID-tapeSetNumber_cameraType_low.mov
 

In this archival information package, the following mapping indicates which dv
file directly corresponds to an equivalent QuickTime file. Note that 
  Tapes 01 and 02 comprise Tape Set 1;
  Tapes 03 and 042 comprie Tap32.


  0-data/Sebastian-2001/CClelia-621-1_3CHIP.dv =
  1-data/Sebastian-2001/IslandsInTheStream2001_Dive621_Tape01-1_3CHIP_low.mov

  0-data/Sebastian-2001/Clelia-621-1_SIT.dv =
  1-data/Sebastian-2001/IslandsInTheStream2001_Dive621_Tape02-1_SIT_low.mov

  0-data/Sebastian-2001/Clelia-621-2_3CHIP.dv =
  1-data/Sebastian-2001/IslandsInTheStream2001_Dive621_Tape03-2_3CHIP_low.mov

  0-data/Sebastian-2001/Clelia-621-2_SIT.dv =
  1-data/Sebastian-2001/IslandsInTheStream2001_Dive621_Tape04-2_SIT_low.mov

  0-data/Sebastian-2001/lelia-621-3_3CHIP.dv =
  1-data/Sebastian-2001/IslandsInTheStream2001_Dive621_Tape05-3_3CHIP_low.mov