GDP Weekly Array Status Update



Composition of the Global Drifter Array on 10-Dec-2018:

DBi : 448
Pacif.Gyre: 401
SIO : 296
Metocean: 252
Unknown: 3
Marlin Yug: 2
Clearwater: 1
TOTAL: 1403



Number of Iridium drifters: 1183

Fraction of array that is Iridium: 84.3 percent

Array size on 3 Dec 2018: 1408 drifters


Added IDs (18):

122706 63470650 63805020 63941720 63941920 63948830 64525030 64877160 64877220 65336640

65337770 65614160 65662990 65709950 65709980 65711430 65802080 65803030


Lost IDs (23):

63040060 63121380 63243760 63930840 63936840 63944880 63945580 64706630 64763620 64828420

64871280 64876490 65065540 65253060 65313950 65314650 65314900 65318730 65515460 65580620

65613290 65708190 65746740


Net change: 18 - 23 = -5

New array size on 10 Dec 2018: 1403 drifters.


Death rate: 20.5 deaths per 1250 drifters per 7 days (1067 deaths per 1250 per year).


Mean age of dead drifters: 375 days. Median: 264 days.


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

ID WMO# DepDate DepLat DepLon ShipManufacturer Type Prgm
64876490170153817-Oct-2018-34.722.6SA AGULHAS DBi BD2GI 21312
65314900310153915-Oct-2018-34.7-50.8Brazilian NAVY SIO BD2GHI 21312
64871280410160325-Aug-201811.0-44.7BORDA DBi BD2GI 21312
65580620640153703-Aug-201868.9-24.8DNR DBi BD2GI 21312
65708190210158926-May-201850.5169.0WESTWOOD COLUMBPacific GyBD2GI 21312
65613290440180821-May-201858.4-24.8UNKNOWN SIO BD2WHI 21312
63945580110151901-Apr-20181.948.0UNKNOWN SIO SVPGHI 21312
65065540130161521-Mar-20180.00.0THALASSA Metocean BD2GI 2222
63944880140158217-Mar-20187.052.9CMA CGM LA TOURSIO SVPGHI 21312
64828420150159412-Mar-2018-7.5-1.0THALASSA Pacific GySVP3GI 21312
65746740640156527-Jan-201863.2-17.0LAGARFOSS Metocean BD2GI 2222
65318730440179710-Sep-201748.6-39.1WHOI SIO SVPGHI 21312
64763620320159120-Jun-20170.1-95.5RONALD BROWN Pacific GySVP3GI 21312
64706630320153516-Jan-2017-55.0-103.0RONALD BROWN Pacific GyBD2GI 21312
63121380160153619-Dec-2016-43.274.9MARION DUFRESNEDBi BD2GI 20921
63243760160152414-Aug-2016-30.254.1MARION DUFRESNEPacific GyBD2GI 21312
63040060230150823-Jun-2016-13.963.5UNKNOWN Pacific GyBD2GI 21321
63930840540151813-Feb-2016-57.5-147.5R/V ARAON Pacific GyBD2GI 21312
63936840720150009-Feb-2016-67.5-128.3R/V ARAON Pacific GyBD2GI 21312


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

ID MANUFACTURER TYPE TRANSMISSION
65313950SIOBD2GHI
65314650SIOBD2GHI
65253060DBiBD2A3
65515460SIOSVPGHI