GDP Weekly Array Status Update



Composition of the Global Drifter Array on 12-Apr-2021:

Pacif.Gyre: 522
DBi : 414
SIO : 328
Metocean: 160
NKE : 30
Unknown: 25
TOTAL: 1479



Number of Iridium drifters: 1394

Fraction of array that is Iridium: 94.3 percent

Array size on 5 Apr 2021: 1468 drifters


Added IDs (28):

79218 60224120 61071630 61071640 61077720 64732570 65416790 65513720 65718230 66793750

66795730 66891220 66891250 66898250 67540110 67544310 67545350 67642580 67648430 68215460

68246880 68247250 68247820 68247970 68248210 68248610 68349280 68441310


Lost IDs (17):

63890660 65615560 65701760 66310040 66413730 66430040 66437000 66813280 66979210 67173120

67249670 67772920 67878750 67900680 68342570 68344230 68445220


Net change: 28 - 17 = 11

New array size on 12 Apr 2021: 1479 drifters.


Death rate: 14.4 deaths per 1250 drifters per 7 days (752 deaths per 1250 per year).


Mean age of dead drifters: 472 days. Median: 386 days.


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

ID WMO# DepDate DepLat DepLon ShipManufacturer Type Prgm
67878750620377409-Feb-202131.5-12.7NRP ALMIRANTE GPacific GyBD2GI 21321
67173120540175713-Jan-2021-58.0-61.2R/V ARAON Pacific GyBD2GI 21312
67900680150174726-Oct-2020-51.064.1ALBIUS NKE BD2GI 2222
68344230440266717-Sep-202064.6-56.1USCG CAMPBELL SIO SVPVHI 21312
68342570440262323-Aug-202060.0-47.4R/V MARIA S. MESIO SVPGHI 21312
67249670540169824-Mar-2020-38.1153.1HANSA FREYBURG Pacific GyBD2GI 21312
67772920510277222-Mar-2020-3.0-140.0BLUEFIN Pacific GySVP3GI 21312
66437000620261929-Feb-2020-4.0-0.3THALASSA Pacific GyBD2GI 21321
66413730640179501-Oct-201974.322.4UNKNOWN SIO BD2GHI 21312
65615560640154920-Aug-201963.8-13.9R/V BJARNI SAEMSIO SVPGHI 21312
66813280320175501-Aug-201917.0-117.0GOLDEN BEAR DBi SVP3GI 21312
66430040540167220-Apr-2019-46.5170.3UNKNOWN Pacific GyBD2GI 21312
66979210330161025-Oct-2018-46.3-53.4Unknown Metocean BD2GI 2222
65701760510259422-Sep-2018-2.0-140.0UNKNOWN Pacific GySVP3GI 21312
63890660560150622-Jan-2017-50.0149.0R/V OGS EXPLORADBi BD2GI 21312


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

not in spec sheet
ID MANUFACTURER TYPE TRANSMISSION
68445220:
66310040SIOSVPGHI