. . . 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

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?

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 20080904.1342 … the Niskin bottle nutrient data and pigment data from that cast can be integrated using that event number

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

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

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.

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)

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

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

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

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 . . .

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

a shipboard sampling event bongo nets Photo by Chris Linder WHOI

a shipboard sampling event drifter net Photo by Mike Carlowicz WHOI

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

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

a dramatic sampling event Alvin Dive WHOI Archives

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

a boatload of sampling events Photo by WHOI

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

penguins deployed ! Photo by WHOI

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

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

an eventful sampling event sentry an eventful sampling event

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

sediment traps AUVs

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

a shipboard sampling event xxx Photo by WHOI

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

shipboard sampling event log controlled vocabulary generated automatically using some algorithm event date time time_L sta lon lat ev_type person activity 0212208 20020121 2208 1108 TEST -175.220 -53.572 CTD001 nd CTD001 0230442 20020123 0442 1742 0 -171.480 -55.398 CTD002 Wang CTD002 0231556 20020123 1556 0456 0 -171.583 -55.407 ZooTow Landry ZooplankTow 0232351 20020123 2351 1351 1 -171.521 -55.334 CTD003 nd CTD003 0240153 20020124 0153 1453 1 -171.490 -55.329 TM001 Wang TM001 0240356 20020124 0356 1656 1 -171.336 -55.314 CTD004 Bailey CTD004 0240745 20020124 0745 2045 1 -171.408 -55.335 Pump_Cast Andrews PumpCast01 0241133 20020124 1133 0033 1 -171.405 -55.324 TM002 Wang TM002 0241319 20020124 1319 0219 1 -171.384 -55.333 CTD005 Timothy CTD005 0241435 20020124 1435 0335 1 -171.385 -56.333 HPT Tanner HandPlankTow 0241520 20020124 1520 0420 1 -171.383 -55.337 TM003 Landry TM003 date, time and position from shipboard system 30 of 31

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