GDP Weekly Array Status Update

Composition of the Global Drifter Array on 11-May-2026:

Pacif.Gyre: 526
SIO : 203
Metocean: 175
DBi : 137
NKE : 32
Unknown: 26
TOTAL: 1099



Number of Iridium drifters: 1099

Fraction of array that is Iridium: 100.0 percent

Array size on 4 May 2026: 1084 drifters


Added IDs (24):

300534068031290 300534068339040 300534068853560 300534068854570 300534068031260 300534068033220 300534068037270 300534068038260 300534068032280 300534068038280

300534068336180 300534068922080 300534068135920 300534068033280 300534068033270 300534068036250 300534068037290 300534068035240 300534068034270 300534068030260

300534068039280 300534068334050 300534064806670 300534065475670


Lost IDs (9):

300534062029730 300534064807080 300534061047640 300534061753820 300534064596110 300534065060080 300534065166830 300534065471380 300534067810670


Net change: 24 - 9 = 15

New array size on 11 May 2026: 1099 drifters.


Death rate: 10.3 deaths per 1250 drifters per 7 days (537 deaths per 1250 per year).


Mean age of dead drifters: 571 days. Median: 266 days.


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

ID WMO# DepDate DepLat DepLon ShipManufacturer Type Prgm
300534061047640330165308-Sep-2021-47.0-59.0Argentine NavalMetocean SVP3GI 22212


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

ID MANUFACTURER TYPE TRANSMISSION
300534065060080Pacific GyBD2A3
300534065471380SIOBD2GHI
300534067810670Pacific GySVP3A3
300534064596110Pacific GyBD2A3
300534065166830Pacific GySVP3A3
300534061753820SIOBD2GHI
300534064807080SIOBD2GHI
300534062029730DBiBD2A3