1. . . . a brief presentation . . . an open discussion 4 September 2008
Sampling Event Log
. . . a brief presentation
. . . an open discussion
4 September 2008
Rolling Deck to Repository

2. What is a sampling event log?
a chronological record of all instrument sampling events during a cruise, wherein each sampling event is assigned a unique identifier
other definitions?

3. Why is an event log important?
the unique sampling event identifier helps to integrate observations from discrete data sets
Example: CTD station 4 cast 2 is assigned event number … the Niskin bottle nutrient data and pigment data from that cast can be integrated using that event number

4. Reminder RD2R is a pilot project
test out some approaches to creating a digital file of shipboard sampling events
and making that file available after the cruise or earlier if advantageous and possible

5. some design considerations
ideally we test out several systems already in use by various operators
interface should be intuitive
system must be flexible; certain aspects should be easily customized by operator
information ‘entry’ should be automated where possible (from ship’s network)
system must scale – smaller coastal vessels to larger open ocean research vessels

6. thoughts from the high seas . . .*
researcher aboard R/V Oceanus, August 2008, talking about metadata for shipboard sampling
"I feel like I'm so busy with all the other little things in a cruise that I don't have time to worry about making up log sheets. But if someone puts an already made log sheet in front of me, I'll use it."
"When I see projects with good metadata, it just makes my heart go pitter patter."
Data originators recognize that recording metadata is a good idea, and they will even record metadata ~ if we make it easy for them to do so.

7. important event log entries?
what types of information are important to record in the event log
the unique sampling event identifier
Example: YYYYMMDD.hhmm SCYYMMDD.hhmm (SC=ship code)

8. Reconstituting the ocean . . .
data integration
Example: combining all data sampled from a Niskin bottle cast

9. a shipboard sampling event
the CTD–Rosette returns let the sampling begin
Photo by Mar Nieto Cid WHOI

10. a shipboard sampling event matrix
VERTIGO project KM0414 ALOHA cruise sampling event matrix

11. Why is an event log important?
the unique sampling event identifiers and timestamps help to integrate observations from the plethora of sampling devices
let us cruise . . .

12. a shipboard sampling event
Seagliders
NAB08 project Mary Jane Perry
University of Maine
Lagrangian bio-heavy floats

13. a shipboard sampling event
bongo nets
Photo by Chris Linder WHOI

14. a shipboard sampling event
drifter net
Photo by Mike Carlowicz WHOI

15. important event log entries?
date and time (UTC)
position latitude longitude
Photo by Chris Linder WHOI

16. a shipboard sampling event
“the camper”
Photo by Chris Linder WHOI

17. a dramatic sampling event
Alvin Dive
WHOI Archives

18. this is a sampling event too
sonobuoy hydrophone receiver
Photo by Craig Marquette WHOI

19. a boatload of sampling events
Photo by WHOI

20. another important log entry . . .
instrument type CTD, drifter net, penguin

21. penguins deployed !
Photo by WHOI

22. a sampling of a sampling event
camera and ascending glider
Photo by Dave Fratantoni WHOI

23. another datum to capture . . .
name of person responsible for sampling event

24. an eventful sampling event
sentry
an eventful sampling event

25. also important to capture . . .
comments “amorous octopus”

26. sediment traps
AUVs

27. another field
activity e.g. deployment, recovery start, max depth, end, abort

28. a shipboard sampling event
xxx
Photo by WHOI

29. a shipboard sampling event
eventID date time lat lon evType Activity Person Comments
a shipboard sampling event
xxx
Photo by WHOI

30. shipboard sampling event log
controlled vocabulary
generated automatically using some algorithm
event date time time_L sta lon lat ev_type person activity
TEST CTD nd CTD001
CTD Wang CTD002
ZooTow Landry ZooplankTow
CTD nd CTD003
TM Wang TM001
CTD Bailey CTD004
Pump_Cast Andrews PumpCast01
TM Wang TM002
CTD Timothy CTD005
HPT Tanner HandPlankTow
TM Landry TM003
date, time and position from shipboard system
30 of 31

31. discuss . . .
Photo by WHOI
Photo by Michael Moore, WHOI