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 | Ship | Manufacturer | Type | Prgm
| 67878750 | | 6203774 | | 09-Feb-2021 | | 31.5 | | -12.7 | | NRP ALMIRANTE G | Pacific Gy | | BD2GI | | 21321 | 67173120 | | 5401757 | | 13-Jan-2021 | | -58.0 | | -61.2 | | R/V ARAON | Pacific Gy | | BD2GI | | 21312 | 67900680 | | 1501747 | | 26-Oct-2020 | | -51.0 | | 64.1 | | ALBIUS | NKE | | BD2GI | | 2222 | 68344230 | | 4402667 | | 17-Sep-2020 | | 64.6 | | -56.1 | | USCG CAMPBELL | SIO | | SVPVHI | | 21312 | 68342570 | | 4402623 | | 23-Aug-2020 | | 60.0 | | -47.4 | | R/V MARIA S. ME | SIO | | SVPGHI | | 21312 | 67249670 | | 5401698 | | 24-Mar-2020 | | -38.1 | | 153.1 | | HANSA FREYBURG | Pacific Gy | | BD2GI | | 21312 | 67772920 | | 5102772 | | 22-Mar-2020 | | -3.0 | | -140.0 | | BLUEFIN | Pacific Gy | | SVP3GI | | 21312 | 66437000 | | 6202619 | | 29-Feb-2020 | | -4.0 | | -0.3 | | THALASSA | Pacific Gy | | BD2GI | | 21321 | 66413730 | | 6401795 | | 01-Oct-2019 | | 74.3 | | 22.4 | | UNKNOWN | SIO | | BD2GHI | | 21312 | 65615560 | | 6401549 | | 20-Aug-2019 | | 63.8 | | -13.9 | | R/V BJARNI SAEM | SIO | | SVPGHI | | 21312 | 66813280 | | 3201755 | | 01-Aug-2019 | | 17.0 | | -117.0 | | GOLDEN BEAR | DBi | | SVP3GI | | 21312 | 66430040 | | 5401672 | | 20-Apr-2019 | | -46.5 | | 170.3 | | UNKNOWN | Pacific Gy | | BD2GI | | 21312 | 66979210 | | 3301610 | | 25-Oct-2018 | | -46.3 | | -53.4 | | Unknown | Metocean | | BD2GI | | 2222 | 65701760 | | 5102594 | | 22-Sep-2018 | | -2.0 | | -140.0 | | UNKNOWN | Pacific Gy | | SVP3GI | | 21312 | 63890660 | | 5601506 | | 22-Jan-2017 | | -50.0 | | 149.0 | | R/V OGS EXPLORA | DBi | | BD2GI | | 21312 | |
Specification sheet info for dead drifters not in deployment log (underlined: aground/picked up):
| ID | MANUFACTURER | TYPE | TRANSMISSION| 68445220: | | not in spec sheet66310040 | | SIO | | SVPGHI | | |