GDP Weekly Array Status Update



Composition of the Global Drifter Array on 06-Jul-2020:

Pacif.Gyre: 450
SIO : 434
DBi : 397
Metocean: 179
NKE : 41
Unknown: 1
TOTAL: 1502



Number of Iridium drifters: 1455

Fraction of array that is Iridium: 96.9 percent

Array size on 29 Jun 2020: 1511 drifters


Added IDs (11):

5411660 65511680 67174190 67174860 67175890 67643530 67643540 67644470 67644520 67644530

67644540


Lost IDs (20):

133122 145560 181934 63802150 63940890 64829170 64832280 65411660 65417240 65510360

65607520 65705770 65706480 65715210 65742680 66319860 66613020 67207250 67545130 67545910


Net change: 11 - 20 = -9

New array size on 6 Jul 2020: 1502 drifters.


Death rate: 16.6 deaths per 1250 drifters per 7 days (865 deaths per 1250 per year).


Mean age of dead drifters: 690 days. Median: 635 days.


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

ID WMO# DepDate DepLat DepLon ShipManufacturer Type Prgm
65715210440183804-Feb-202048.1-41.9CCGS HENRY LARSSIO BD2GHI 21321
66613020410175802-Feb-20208.1-52.8ATALANTE NKE BD2GI 2222
67545130520168003-Nov-201936.4161.0R/V ISABU DBi SVP3GI 21312
67545910520168403-Nov-201936.4160.5R/V ISABU DBi SVP3GI 21312
65706480610250825-Oct-201934.225.7R/V LAURA BASSIPacific GyBD2GI 21321
66319860210164811-Sep-201922.1121.3UNKNOWN SIO SVPGHI 21312
65411660140170810-Aug-20191.045.8KUMASI SIO SVPGHI 21312
67207250530176315-Mar-2019-6.06.0THALASSA NKE BD2GI 2222
65417240170154912-Dec-2018-50.01.4SA AGULHAS SIO BD2GHI 21312
65607520140166908-Aug-2018-3.0164.3RONALD BROWN Pacific GySVP3GI 21312
65705770410162403-Jul-201859.0-33.2THALASSA Pacific GyBD2GI 21321
65742680640157023-May-201866.7-4.9ORTELIUS Metocean BD2GI 2222
64832280340155006-Apr-2018-60.0-63.7LM GOULD DBi BD2GI 21312
65510360320164918-Jan-201810.6-127.0LADY AMBER SIO SVPGHI 21312
63940890410152925-Dec-201735.1-64.1CMA CGM LA TRAVSIO BD2GHI 21321
64829170540153702-Aug-2017-32.5-167.1Nathaniel B PalDBi BD2GI 21312
145560150060814-Feb-2017-20.61.0MAERSK VISBY DBi SVP3A3 6325
63802150330095409-Nov-2015-42.4-46.5Unknown Metocean BD2GI 2222
133122210091403-Jul-201448.2160.8WESTWOOD RAINIEDBi SVPBD2 9325


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

not in spec sheet
ID MANUFACTURER TYPE TRANSMISSION
181934: