GDP Weekly Array Status Update

Composition of the Global Drifter Array on 22-Jun-2026:

Pacif.Gyre: 508
SIO : 196
Metocean: 170
DBi : 132
Unknown: 55
NKE : 32
TOTAL: 1093



Number of Iridium drifters: 1093

Fraction of array that is Iridium: 100.0 percent

Array size on 15 Jun 2026: 1096 drifters


Added IDs (10):

300534065821560 300534068854560 300534068850580 300534065266810 300534065957760 300534065958160 300534067022280 300534067023300 300534067583380 300534067583460


Lost IDs (13):

300534061686410 300534061650830 300234065069420 300534060158910 300534062784170 300534063016360 300534063019400 300534063485280 300534063901090 300534064390970

300534064392430 300534064803710 300534068117370


Net change: 10 - 13 = -3

New array size on 22 Jun 2026: 1093 drifters.


Death rate: 14.8 deaths per 1250 drifters per 7 days (774 deaths per 1250 per year).


Mean age of dead drifters: 1024 days. Median: 931 days.


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

ID WMO# DepDate DepLat DepLon ShipManufacturer Type Prgm
300234065069420410155931-Mar-201826.7-79.8ANGARI Metocean SVP3GI 21312


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

ID MANUFACTURER TYPE TRANSMISSION
300534068117370Pacific GySVP3A3
300534063485280MetoceanSVP3A3
300534064390970Pacific GySVP3A3
300534064392430Pacific GySVP3A3
300534064803710SIOBD2GHI
300534063016360Pacific GyBD2A3
300534060158910Pacific GyBD2A3
300534062784170DBiBD2A3
300534063019400Pacific GyBD2A3
300534063901090Pacific GySVP3A3
300534061686410Metocean SBD 9602N
300534061650830DBi SBD 9602