GDP Weekly Array Status Update



Composition of the Global Drifter Array on 23-May-2022:

Pacif.Gyre: 453
DBi : 386
SIO : 252
Metocean: 121
Unknown: 25
NKE : 23
Marlin Yug: 5
TOTAL: 1265



Number of Iridium drifters: 1260

Fraction of array that is Iridium: 99.6 percent

Array size on 16 May 2022: 1265 drifters


Added IDs (10):

300234063782900 300234065606540 300234065701190 300234066437370 300234067878310 300534061286390 300534061659910 300534061659920 300534062024730 300534062024770


Lost IDs (10):

220831 220834 300234065605530 300234066719040 300234067878250 300534061288050 300534061652480 300534061700380 300534061751170 300534061781280


Net change: 10 - 10 = 0

New array size on 23 May 2022: 1265 drifters.


Death rate: 9.9 deaths per 1250 drifters per 7 days (515 deaths per 1250 per year).


Mean age of dead drifters: 389 days. Median: 173 days.


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

ID WMO# DepDate DepLat DepLon ShipManufacturer Type Prgm
300534061288050520175010-Sep-20210.0170.0BLUEFIN DBi SVP3GI 32212
300534061652480460183114-Jan-202147.6-142.8Air deployed SIO BD2GHI 21312
300234066719040340162421-Apr-2019-17.9-93.0STRATUS DBi SVP3GI 21312
300234065605530230159715-Jul-2018-14.0113.0RONALD BROWN Pacific GySVP3GI 21312


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

not in spec sheet
ID MANUFACTURER TYPE TRANSMISSION
300234067878250Pacific GyBD2A3
300534061781280:
220834Marlin-Yug MAR012 MT105AM
300534061751170DBi SBD 9602
300534061700380DBi SBD 9602
220831Marlin-Yug MAR012 MT105AM