GDP Weekly Array Status Update



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

Pacif.Gyre: 444
DBi : 332
SIO : 184
Metocean: 116
Unknown: 56
NKE : 18
Marlin Yug: 1
TOTAL: 1151



Number of Iridium drifters: 1151

Fraction of array that is Iridium: 100.0 percent

Array size on 8 Apr 2024: 1160 drifters


Added IDs (5):

300234066435290 300534060604600 300534060719690 300534062477420 300534064005320


Lost IDs (14):

300234060655120 300234064011410 300234065700780 300234068482590 300534060420520 300534061184910 300534061755070 300534062029710 300534062093710 300534062154470

300534062364660 300534063708670 300534063920500 300534064001300


Net change: 5 - 14 = -9

New array size on 15 Apr 2024: 1151 drifters.


Death rate: 15.1 deaths per 1250 drifters per 7 days (790 deaths per 1250 per year).


Mean age of dead drifters: 726 days. Median: 462 days.


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

ID   WMO#  DepDate   DepLat  DepLon   ShipManufacturer  Type   Prgm
300234068482590 4802549 23-Jul-2021 57.0 -167.1 USCG HEALY DBi  BD2GI  21312
300234060655120 1501651 23-Sep-2020 -36.1 -3.0 SA AGULHAS Pacific Gy BD2GI  21312
300234065700780 3201679 25-Jul-2020 -0.3 -100.0 MAERSK OLIVIA Pacific Gy SVP3GI  21312
300534060420520 4601764 19-May-2020 34.7 -143.9 SV KWAI Pacific Gy BD2GI  21312
300234064011410 4101541 20-Jul-2017 27.0 -79.7 R/V WALTON SMITMetocean  SVP3GI  31312


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

not in spec sheet
ID   MANUFACTURER  TYPE   TRANSMISSION
300534063708670 Pacific Gy BD2A3 
300534064001300:  
300534061184910 DBi BD2A3 
300534061755070 SIO BD2GHI 
300534063920500 Metocean SVP3A3 
300534062093710 Pacific Gy BD2A3 
300534062154470 Pacific Gy BD2A3 
300534062029710 DBi BD2A3 
300534062364660 Pacific Gy SVP3A3