GDP Weekly Array Status Update

Composition of the Global Drifter Array on 13-Jul-2026:

Pacif.Gyre: 514
SIO : 193
Metocean: 164
DBi : 132
Unknown: 88
NKE : 30
TOTAL: 1121



Number of Iridium drifters: 1121

Fraction of array that is Iridium: 100.0 percent

Array size on 6 Jul 2026: 1106 drifters


Added IDs (28):

300534068856550 300534068851550 300534068850560 300534065062040 300534064239490 300534064239500 300534064293280 300534064390970 300534065169630 300534065952790

300534065952800 300534065953760 300534065953770 300534065953780 300534067020250 300534067583480 300534067583560 300534068051920 300534068051940 300534068051950

300534068052700 300534068052940 300534068053560 300534068058530 300534068058550 300534068058680 300534068058700 300534068059550


Lost IDs (13):

300534061658500 300534062368800 300534063481270 300534063687850 300534064038370 300534064039900 300534064309480 300534064394300 300534064595710 300534064597090

300534064648800 300534064740000 300534065168530


Net change: 28 - 13 = 15

New array size on 13 Jul 2026: 1121 drifters.


Death rate: 14.6 deaths per 1250 drifters per 7 days (761 deaths per 1250 per year).


Mean age of dead drifters: 738 days. Median: 868 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):

ID MANUFACTURER TYPE TRANSMISSION
300534063687850MetoceanSVP3A3
300534063481270MetoceanSVP3A3
300534064595710Pacific GyBD2A3
300534065168530Pacific GySVP3A3
300534064597090Pacific GyBD2A3
300534064394300Pacific GySVP3A3
300534064309480SIOSVPGHI
300534064038370MetoceanSVP3A3
300534064039900MetoceanSVP3A3
300534064648800MetoceanSVP3A3
300534064740000MetoceanSVP3A3
300534062368800Pacific GySVP3A3
300534061658500Pacific Gyre SBD 9602