GDP Weekly Array Status Update

Composition of the Global Drifter Array on 15-Jun-2026:

Pacif.Gyre: 511
SIO : 197
Metocean: 172
DBi : 134
Unknown: 50
NKE : 32
TOTAL: 1096



Number of Iridium drifters: 1096

Fraction of array that is Iridium: 100.0 percent

Array size on 8 Jun 2026: 1089 drifters


Added IDs (25):

300534068853580 300534068038250 300534068034260 300534063014290 300534063901090 300534063902000 300534065265850 300534065265870 300534065266740 300534065266760

300534065361200 300534065956780 300534065957790 300534067020230 300534067020260 300534067021250 300534067581620 300534067583120 300534067583160 300534067583230

300534067583270 300534067583290 300534067583340 300534067583350 300534067583370


Lost IDs (18):

108719 300534062098710 300534061280120 300534061652920 300534061450800 300534065064050 300534065060990 300534060524270 300534063909000 300534064299690

300534064392960 300534064393940 300534064397460 300534065067970 300534065160900 300534065955170 300534065958160 300534064234900


Net change: 25 - 18 = 7

New array size on 15 Jun 2026: 1096 drifters.


Death rate: 20.6 deaths per 1250 drifters per 7 days (1074 deaths per 1250 per year).


Mean age of dead drifters: 548 days. Median: 536 days.


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

ID WMO# DepDate DepLat DepLon ShipManufacturer Type Prgm


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

not in spec sheet
ID MANUFACTURER TYPE TRANSMISSION
108719:
300534065060990Pacific GyBD2A3
300534065067970Pacific GySVP3A3
300534064234900SIOBD2VHI
300534065064050Pacific GyBD2A3
300534065160900Pacific GySVP3A3
300534065958160Pacific GySVP3A3
300534065955170Pacific GySVP3A3
300534064392960Pacific GySVP3A3
300534061280120DBiBD2A3
300534064397460Pacific GySVP3A3
300534064393940Pacific GySVP3A3
300534064299690Pacific GyBD2A3
300534062098710Pacific GyBD2A3
300534061450800SIOBD2GHI
300534063909000Pacific GyBD2A3
300534060524270Pacific GyBD2A3
300534061652920DBi SBD 9602