Composition of the Global Drifter Array on 28-Apr-2025:
| Pacif.Gyre: | 629 |
| DBi : | 234 |
| SIO : | 208 |
| Metocean: | 142 |
| Unknown: | 47 |
| NKE : | 35 | TOTAL: | 1295 |
Number of Iridium drifters: 1295
Fraction of array that is Iridium: 100.0 percent
Array size on 21 Apr 2025: 1300 drifters
Added IDs (16):
300534060059030 300534061281460 300534062093710 300534064708670 300534065162000 300534065162530 300534065162540 300534065162560 300534065162840 300534065162850
300534065166890 300534065167360 300534065167560 300534065168360 300534065168470 300534065168510
Lost IDs (21):
300234066534020 300534062028780 300534061758060 300234066434260 300234066439300 300234066571010 300234067870460 300234067979290 300534061081580 300534061390370
300534062127880 300534063033200 300534063908050 300534064036970 300534064292940 300534064293240 300534064296930 300534064297280 300534064306510 300534064396970
300534065377930
Net change: 16 - 21 = -5
New array size on 28 Apr 2025: 1295 drifters.
Death rate: 20.2 deaths per 1250 drifters per 7 days (1055 deaths per 1250 per year).
Mean age of dead drifters: 717 days. Median: 455 days.
Deplog information for dead drifters (underlined: aground/picked up):
| ID | WMO# | DepDate | DepLat | DepLon | Ship | Manufacturer | Type | Prgm
| 300534061081580 | | 2101832 | | 20-Dec-2021 | | 35.2 | | 142.4 | | WESTWOOD COLUMB | Pacific Gy | | BD2GI | | 31412 | 300234066534020 | | 4101665 | | 14-Nov-2021 | | 61.3 | | -11.9 | | SKAGAFOSS | Pacific Gy | | BD2GI | | 21321 | 300234066434260 | | 7401534 | | 25-Jun-2021 | | -38.6 | | -11.1 | | SA AGULHAS | Pacific Gy | | BD2GI | | 21312 | 300234066571010 | | 1701646 | | 29-Mar-2020 | | -26.4 | | 8.0 | | MV HELENA | DBi | | BD2GI | | 21312 | 300234067870460 | | 5102780 | | 16-Mar-2020 | | 5.0 | | -139.9 | | BLUEFIN | Pacific Gy | | SVP3GI | | 21312 | 300234066439300 | | 1601654 | | 19-Aug-2019 | | -51.2 | | 70.2 | | MASCAREIGNES | Pacific Gy | | BD2GI | | 21321 | |
Specification sheet info for dead drifters not in deployment log (underlined: aground/picked up):
| ID | MANUFACTURER | TYPE | TRANSMISSION| 300534064292940 | | Pacific Gy | | BD2A3 | | 300534064293240 | | Pacific Gy | | BD2A3 | | 300534065377930 | | Pacific Gy | | SVP3A3 | | 300534064296930 | | Pacific Gy | | BD2A3 | | 300534064297280 | | Pacific Gy | | BD2A3 | | 300534064396970 | | Pacific Gy | | SVP3A3 | | 300534063033200 | | Metocean | | SVP3A3 | | 300534063908050 | | Pacific Gy | | SVP3A3 | | 300534061758060 | | SIO | | BD2GHI | | 300534064036970 | | SIO | | BD2GHI | | 300534064306510 | | SIO | | BD2GHI | | 300234067979290 | | Pacific Gy | | BD2A3 | | 300534062028780 | | DBi | | BD2A3 | | 300534062127880 | | DBi | | | | SBD 9602 | 300534061390370 | | SIO | | | | SBD 9602 | |