GDP Weekly Array Status Update



Composition of the Global Drifter Array on 26-Feb-2024:

Pacif.Gyre: 439
DBi : 348
SIO : 187
Metocean: 124
Unknown: 49
NKE : 20
Marlin Yug: 4
TOTAL: 1171



Number of Iridium drifters: 1168

Fraction of array that is Iridium: 99.7 percent

Array size on 19 Feb 2024: 1165 drifters


Added IDs (15):

300234065605910 300234067273210 300534062360410 300534062360490 300534063012290 300534063012300 300534063012430 300534063012440 300534063013270 300534063013300

300534063013400 300534063485380 300534064309430 300534064309480 300534064309490


Lost IDs (9):

300234066435270 300234067543690 300234067970250 300534060526190 300534060658980 300534061754890 300534061755090 300534062099730 300534063482370


Net change: 15 - 9 = 6

New array size on 26 Feb 2024: 1171 drifters.


Death rate: 9.6 deaths per 1250 drifters per 7 days (502 deaths per 1250 per year).


Mean age of dead drifters: 593 days. Median: 231 days.


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

ID WMO# DepDate DepLat DepLon ShipManufacturer Type Prgm
300234067970250440267216-Nov-202115.1-22.0INITIATIVE COEUPacific GyBD2GI 21321
300234067543690210168905-Mar-202140.6168.0WESTWOOD COLUMBDBi BD2GI 21312
300534060658980440266510-Aug-202045.9-56.0USCGC CAMPBELL DBi BD2GI 21312
300234066435270540169127-Feb-2020-62.0160.2SPIRIT OF ENDERPacific GyBD2GI 21312


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

ID MANUFACTURER TYPE TRANSMISSION
300534060526190Pacific GyBD2A3
300534063482370MetoceanBD2A3
300534062099730Pacific GyBD2A3
300534061754890SIOBD2GHI
300534061755090SIOBD2GHI