Composition of the Global Drifter Array on 14-Jul-2025:
| Pacif.Gyre: | 610 |
| DBi : | 218 |
| SIO : | 210 |
| Metocean: | 144 |
| NKE : | 42 |
| Unknown: | 13 | TOTAL: | 1237 |
Number of Iridium drifters: 1237
Fraction of array that is Iridium: 100.0 percent
Array size on 7 Jul 2025: 1239 drifters
Added IDs (14):
300234067907810 300534065820730 300534065285020 300534067810540 300234066914830 300534063016470 300534064294940 300534065066070 300534065066100 300534065066970
300534065066990 300534065067020 300534065067030 300534065265750
Lost IDs (16):
300534061781280 300534062030390 300534061650600 300534061754110 300234067278380 300234067879480 300534060613530 300534062485540 300534064302540 300534064599690
300534065070520 300534065163550 300534065957160 300534065959140 300534061750100 300534065076930
Net change: 14 - 16 = -2
New array size on 14 Jul 2025: 1237 drifters.
Death rate: 16.2 deaths per 1250 drifters per 7 days (842 deaths per 1250 per year).
Mean age of dead drifters: 733 days. Median: 606 days.
Deplog information for dead drifters (underlined: aground/picked up):
| ID | WMO# | DepDate | DepLat | DepLon | Ship | Manufacturer | Type | Prgm
| 300534061650600 | | 1401819 | | 28-Jan-2022 | | -19.0 | | 54.0 | | OSIRIS | DBi | | BD2GI | | 21421 | 300234067879480 | | 6402622 | | 07-Jun-2021 | | 44.3 | | -9.6 | | TANGAN IV | Pacific Gy | | BD2GI | | 21321 | 300534060613530 | | 5201708 | | 14-Jul-2020 | | 19.6 | | 134.6 | | R/V ONNURI | Pacific Gy | | SVP3GI | | 21312 | 300234067278380 | | 1501675 | | 02-Apr-2020 | | -13.0 | | -22.1 | | RONALD BROWN | Pacific Gy | | SVP3GI | | 21312 | |
Specification sheet info for dead drifters not in deployment log (underlined: aground/picked up):
| ID | MANUFACTURER | TYPE | TRANSMISSION| 300534065957160 | | Pacific Gy | | SVP3A3 | | 300534065959140 | | Pacific Gy | | SVP3A3 | | 300534065163550 | | Pacific Gy | | SVP3A3 | | 300534065070520 | | SIO | | BD2GHI | | 300534065076930 | | SIO | | BD2VHI | | 300534064599690 | | Pacific Gy | | SVP3A3 | | 300534062030390 | | Metocean | | BD2GHI | | 300534061750100 | | SIO | | BD2VHI | | 300534061754110 | | SIO | | BD2GHI | | 300534064302540 | | SIO | | SVPGHI | | 300534062485540 | | DBi | | BD2A3 | | 300534061781280 | | Metocean | | | | SBD 9602N | |