GDP Weekly Array Status Update



Composition of the Global Drifter Array on 11-Jun-2018:

DBi : 521
Pacif.Gyre: 376
SIO : 320
Metocean: 267
Unknown: 2
Marlin Yug: 2
Clearwater: 1
TOTAL: 1489



Number of Iridium drifters: 1170

Fraction of array that is Iridium: 78.6 percent

Array size on 4 Jun 2018: 1493 drifters


Added IDs (24):

63568430 64776880 65705460 65741230 60322940 63940710 63948880 65380680 65382700 65384700

65510390 65510710 65510730 65510740 65510750 65510810 65511270 65606520 65606530 65704460

65804030 65920130 65942880 66614930


Lost IDs (28):

127006 127401 132528 132530 132727 145622 132670 122681 63940760 61499000

61495010 61471310 61508390 63342960 63705930 63946710 63949570 63995470 64731150 64739140

64739570 64824190 65333780 65415790 65513740 65610540 65612130 65612430


Net change: 24 - 28 = -4

New array size on 11 Jun 2018: 1489 drifters.


Death rate: 23.5 deaths per 1250 drifters per 7 days (1224 deaths per 1250 per year).


Mean age of dead drifters: 572 days. Median: 560 days.


Deplog information for dead drifters (underlined: aground/picked up):

ID WMO# DepDate DepLat DepLon ShipManufacturer Type Prgm
65333780550155810-Apr-2018-67.0-167.5Nathaniel B PalDBi BD2GI 21312
64824190320154929-Mar-2018-2.3-99.0MAERSK OLGA DBi SVP3GI 21312
65415790320166121-Jan-201812.0-127.7LADY AMBER SIO SVGSHI 21312
64739140520163401-Dec-201712.0131.0GAIA DBi SVP3GI 21312
64739570520163629-Nov-20179.0131.0GAIA DBi SVP3GI 21312
63946710510258831-Oct-20178.6125.0UNKNOWN SIO SVPGHI 21312
63949570640150721-Aug-201771.08.0R/V DANA SIO BD2GHI 21312
63940760110151012-Jun-20170.055.5CHAMPLAIN SIO BD2GHI 21321
64731150320160911-May-2017-15.0-84.3RONALD BROWN DBi SVP3GI 21312
61499000160153412-Dec-2016-48.663.0MARION DUFRESNEDBi BD2GI 20921
63705930620350913-Nov-2016-3.0-7.9MAERSK LAVRA Metocean BD2GI 21312
61495010230150108-Nov-2016-43.052.2MARION DUFRESNEDBi BD2GI 20921
63995470520155930-Oct-201615.9141.8GAIA DBi SVP3GI 21312
63342960460157307-Oct-201610.2-123.0LADY AMBER SIO SVPGHI 21312
132670330094606-May-2016-53.4-46.0PHAROS SG DBi BD2A3 7325
145622330088506-Jan-2016-59.8-62.4LM GOULD DBi SVP3A3 6325
132727330069201-Jan-2016-51.1-23.0SA AGULHAS DBi BD2A3 6129
127401140055507-Sep-2015-27.253.9MARION DUFRESNEDBi BD2A3 6129
61471310640052817-Jun-201564.3-11.5ETOILE DBi BD2GI 20921
132528140054519-Apr-2015-34.426.0ALGOA Pacific GyBD2A3 6129
132530170052219-Apr-2015-36.5-0.1DIEL Pacific GyBD2A3 6129
61508390220058913-Apr-201521.2119.5SCS KAOHSIUNG SIO SVP3GI 20912
127006520060204-Jun-20145.0165.0GAIA Pacific GySVP3A3 6129
122681320086728-Feb-2014-23.2-87.0RONALD BROWN DBi SVP3 8325


Specification sheet info for dead drifters not in deployment log (underlined: aground/picked up):

ID MANUFACTURER TYPE TRANSMISSION
65513740SIOSVPVHI (w/o drogue)
65610540SIOSVPGHI
65612130SIOSVPGHI
65612430SIOSVPGHI