GDP Weekly Array Status Update

Composition of the Global Drifter Array on 09-Feb-2026:

Pacif.Gyre: 548
DBi : 175
Metocean: 133
Unknown: 118
SIO : 118
NKE : 32
TOTAL: 1124



Number of Iridium drifters: 1124

Fraction of array that is Iridium: 100.0 percent

Array size on 2 Feb 2026: 1100 drifters


Added IDs (35):

300534068032280 300534068036250 300534060719650 300534063383130 300534063383160 300534063384180 300534063386150 300534063387260 300534063389040 300534063389170

300534063480260 300534063481270 300534063482270 300534063484250 300534063484260 300534063485260 300534063900060 300534065062950 300534065063060 300534065066950

300534065377070 300534065377110 300534065377130 300534065377290 300534065377520 300534065472610 300534065472740 300534065954740 300534065954780 300534065954790

300534065955740 300534065955750 300534065955770 300534065956750 300534065956770


Lost IDs (11):

300534060383730 300534064359320 300234066028120 300534061289460 300534062425200 300534062787200 300534063016470 300534063902090 300534063903010 300534065377780

300534065472400


Net change: 35 - 11 = 24

New array size on 9 Feb 2026: 1124 drifters.


Death rate: 12.4 deaths per 1250 drifters per 7 days (645 deaths per 1250 per year).


Mean age of dead drifters: 836 days. Median: 777 days.


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

ID WMO# DepDate DepLat DepLon ShipManufacturer Type Prgm
300534061289460320183912-Nov-2021-5.0-110.0BLUEFIN Pacific GyBD2GI 31412
300234066028120210169201-Feb-202137.5144.0WESTWOOD COLUMBDBi BD2GI 21312


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

ID MANUFACTURER TYPE TRANSMISSION
300534064359320MetoceanBD2GHI
300534065472400Pacific GySVP3A3
300534065377780Pacific GySVP3A3
300534060383730MetoceanBD2GHI
300534062787200DBiBD2A3
300534063016470Pacific GyBD2A3
300534063902090Pacific GySVP3A3
300534063903010Pacific GySVP3A3
300534062425200Pacific GyBD2A3