GDP Weekly Array Status Update



Composition of the Global Drifter Array on 15-Jul-2024:

Pacif.Gyre: 446
DBi : 322
SIO : 193
Metocean: 120
Unknown: 30
NKE : 30
Marlin Yug: 1
TOTAL: 1142



Number of Iridium drifters: 1142

Fraction of array that is Iridium: 100.0 percent

Array size on 8 Jul 2024: 1150 drifters


Added IDs (3):

300534064299690 300534064905940 300534064906350


Lost IDs (11):

300234010826560 300234067970120 300534060716640 300534061343290 300534061658860 300534062091810 300534062384410 300534063018330 300534064708220 300534064903780

300534064904970


Net change: 3 - 11 = -8

New array size on 15 Jul 2024: 1142 drifters.


Death rate: 12.0 deaths per 1250 drifters per 7 days (626 deaths per 1250 per year).


Mean age of dead drifters: 682 days. Median: 651 days.


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

ID WMO# DepDate DepLat DepLon ShipManufacturer Type Prgm
300234067970120440267020-Nov-202120.9-23.3UNIS POUR LA PLPacific GyBD2GI 21321
300534061658860210182616-Aug-202132.1157.4R/V ARAON DBi BD2GI 31412
300534061343290150169816-Feb-2021-20.50.2MV HELENA DBi BD2GI 21312
300534060716640210180630-Jul-202056.6-174.9R/V ARAON Pacific GyBD2GI 21312


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

ID MANUFACTURER TYPE TRANSMISSION
300534063018330Pacific GyBD2A3
300534064708220SIOBD2GHI
300534064904970SIOBD2GHI
300534064903780SIOBD2VHI
300534062384410DBi SBD 9602
300234010826560DBi SBD 9602
300534062091810Pacific Gyre SBD 9602