AOML
NOAA

Composition of the Global Drifter Array on 11-Dec-2017:
DBi : 513
Pacif.Gyre: 421
Metocean: 265
SIO : 238
Unknown: 4
Marlin Yug: 1
Clearwater: 1
Technocean: 0
TOTAL: 1443

Number of Iridium drifters: 961

Fraction of array that is Iridium: 66.6 percent

Array size on 4 Dec 2017: 1443 drifters

Added IDs (19):

145864 63941900 63941910 62412660 62650120 63254890 63259890 63342980 63346730 63474570

63474580 63943720 63944700 63944780 63944920 63945700 64005040 64802210 64803070

Lost IDs (20):

114944 126954 127428 139540 115985 122664 63940850 61516870 60448280 63665930

63253730 63321150 63340430 63342750 63804040 63943730 63946850 64705650 64760690 64768750

Net change: 19 - 20 = -1

New array size on 11 Dec 2017: 1442 drifters.

Death rate: 17.3 deaths per 1250 drifters per 7 days (903 deaths per 1250 per year).

Mean age of dead drifters: 544 days. Median: 396 days.

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

IDWMO#DepDateDepLatDepLonShipManufacturerTypePrgm
63943730140166725-Sep-20171.048.6CMA CGM MANET SIO SVPGHI 21312
64760690320158719-Jun-20173.0-95.2RONALD BROWN Pacific GySVP3GI 21312
63940850110151212-Jun-20171.055.5CHAMPLAIN SIO BD2GHI 21321
63253730520159005-Apr-20178.5-134.7REVELLE SIO BD2GHI 21312
63665930610255925-Feb-201733.833.0MEDITERRANEAN EMetocean SVP3GI 2222
64705650430150417-Dec-2016-15.0-103.0RONALD BROWN Pacific GyBD2GI 21312
63340430460154404-Oct-201610.6-123.5LADY AMBER SIO SVGSHI 21312
63342750460157230-Aug-20169.5-125.8LADY AMBER SIO SVPGHI 21312
127428740054116-Dec-2015-61.880.0SHIRASE DBi BD2A3 6129
114944410050629-Aug-201530.9-79.5SEAKEEPERS SIO BD2A3 6129
139540520082729-Jul-20152.7166.0GAIA DBi SVP3A3 6129
61516870130087115-Mar-201525.0-21.3THALASSA Metocean BD2GI 2222
115985170066303-Feb-2015-53.0-46.1SA AGULHAS Pacific GyBD2A3 7325
126954320055304-Jan-2015-32.7-71.7ABATE MOLINA Pacific GyBD2A3 6129
122664320092311-Mar-2014-19.6-84.9RONALD BROWN DBi SVP3 8325
60448280440084827-Jan-201438.3-47.0OOCL OAKLAND DBi BD2GI 9999

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

IDMANUFACTURERTYPETRANSMISSION
64768750Pacific GySVP3A3
63946850SIOSVPGHI
63804040MetoceanSVPB GPS
63321150DBiSVPB GPS