GDP Weekly Array Status Update



Composition of the Global Drifter Array on 19-Sep-2022:

Pacif.Gyre: 407
DBi : 401
SIO : 225
Metocean: 133
Unknown: 63
NKE : 16
Marlin Yug: 12
TOTAL: 1257



Number of Iridium drifters: 1254

Fraction of array that is Iridium: 99.8 percent

Array size on 12 Sep 2022: 1250 drifters


Added IDs (26):

220822 220837 300234060250900 300234060253330 300234060258750 300234060352970 300234067878170 300234067878220 300534061659700 300534061659740

300534062770070 300534062772000 300534062773060 300534062774990 300534062776990 300534062778990 300534062779060 300534062779980 300534062872040 300534062873040

300534062874020 300534062875020 300534062877040 300534062878010 300534062878050 300534062879020


Lost IDs (19):

300234063947900 300234065706780 300234065707190 300234065808080 300234066436050 300234066913840 300234067177120 300234068249230 300534060019420 300534061285280

300534061289440 300534061290930 300534061393360 300534061490150 300534061491020 300534061497040 300534061654690 300534062121880 300534062834790


Net change: 26 - 19 = 7

New array size on 19 Sep 2022: 1257 drifters.


Death rate: 18.9 deaths per 1250 drifters per 7 days (988 deaths per 1250 per year).


Mean age of dead drifters: 620 days. Median: 361 days.


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

ID WMO# DepDate DepLat DepLon ShipManufacturer Type Prgm
300534061289440320183813-Nov-2021-3.0-110.0BLUEFIN Pacific GyBD2GI 31412
300534061654690520173423-Sep-2021-5.0-155.0BLUEFIN DBi SVP3GI 31412
300234067177120340164311-Mar-202119.0155.0R/V ARAON Pacific GyBD2GI 21312
300234068249230460175025-Feb-202040.1-148.6Air deployed SIO BD2GHI 21312
300234066913840330157817-Dec-2019-60.0-63.3LM GOULD DBi BD2GI 21312
300234065808080560154227-Jul-2019-6.188.0DENSA SEA LION Pacific GyBD2GI 21312
300234065706780560156720-Apr-2019-28.157.8MARION DUFRESNEPacific GyBD2GI 21312
300234066436050320172918-Apr-2019-15.7-104.0STRATUS Pacific GyBD2GI 21312
300234065707190160160114-Dec-2018-47.258.0MARION DUFRESNEPacific GyBD2GI 21321
300234063947900440176311-Sep-201744.4-43.6WHOI SIO SVPGHI 21312


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

not in spec sheetnot in spec sheet
ID MANUFACTURER TYPE TRANSMISSION
300534060019420:
300534062834790:
300534061393360SIOSVPGHI
300534061285280DBiBD2A3
300534062121880DBi SBD 9602
300534061490150SIO SBD 9602
300534061491020SIO SBD 9602
300534061497040SIO SBD 9602
300534061290930SIO SBD 9602