Composition of the Global Drifter Array on 06-Apr-2026:
| Pacif.Gyre: | 541 |
| Unknown: | 201 |
| DBi : | 142 |
| Metocean: | 125 |
| SIO : | 98 |
| NKE : | 31 | TOTAL: | 1138 |
Number of Iridium drifters: 1138
Fraction of array that is Iridium: 100.0 percent
Array size on 30 Mar 2026: 1168 drifters
Added IDs (16):
300534065284140 300534065061050 300534065061040 300534063011430 300534063489270 300534063687850 300534063900060 300534063900080 300534065061020 300534065951760
300534065952310 300534065952510 300534065953160 300534065953300 300534065954120 300534065954170
Lost IDs (46):
300534064892860 300234065259010 300234065580270 300234065586240 300234066020220 300234066021230 300234066028090 300234066028200 300234066714270 300234066913810
300234067241780 300234067243620 300234067278400 300234067279370 300234067279400 300234067520420 300234067529550 300234067540130 300234067649510 300234067870480
300234067871380 300234067871920 300234067875370 300234067879170 300234068342220 300534060353460 300534060354010 300534060354430 300534060714230 300534060714500
300534060714510 300534060719690 300534060751060 300534060751070 300534060752080 300534061657770 300534063803900 300534064280520 300534064280540 300534064593020
300534065076500 300534065371980 300534065372940 300534064235310 300534064234950 300534065478480
Net change: 16 - 46 = -30
New array size on 6 Apr 2026: 1138 drifters.
Death rate: 49.9 deaths per 1250 drifters per 7 days (2600 deaths per 1250 per year).
Mean age of dead drifters: 1650 days. Median: 1943 days.
Deplog information for dead drifters (underlined: aground/picked up):
| ID | WMO# | DepDate | DepLat | DepLon | Ship | Manufacturer | Type | Prgm
| 300234067879170 | | 6402616 | | 03-Jan-2022 | | 16.6 | | -34.1 | | BERNICK | Pacific Gy | | BD2GI | | 21321 | 300534061657770 | | 5201724 | | 07-Aug-2021 | | 33.5 | | 156.4 | | R/V ARAON | DBi | | BD2GI | | 31412 | 300234065586240 | | 3401599 | | 26-May-2021 | | -60.0 | | -65.0 | | LM GOULD | DBi | | BD2GI | | 21312 | 300234067520420 | | 1601677 | | 11-May-2021 | | -35.7 | | 23.2 | | SA AGULHAS | DBi | | BD2GI | | 21312 | 300234067870480 | | 4201598 | | 22-Mar-2021 | | -9.9 | | -110.0 | | MAERSK OLIVIA | Pacific Gy | | SVP3GI | | 21312 | 300234067871920 | | 4201607 | | 22-Mar-2021 | | -9.9 | | -110.0 | | MAERSK OLIVIA | Pacific Gy | | SVP3GI | | 21312 | 300234067871380 | | 4201602 | | 20-Mar-2021 | | -2.5 | | -100.0 | | MAERSK OLIVIA | Pacific Gy | | SVP3GI | | 21312 | 300234066028090 | | 2101690 | | 05-Mar-2021 | | 36.7 | | 152.0 | | WESTWOOD RAINIE | DBi | | BD2GI | | 21312 | 300234067529550 | | 1701608 | | 01-Mar-2021 | | -43.0 | | 7.4 | | SA AGULHAS | DBi | | BD2GI | | 21312 | 300234066028200 | | 2101693 | | 02-Feb-2021 | | 56.2 | | 172.1 | | WESTWOOD RAINIE | DBi | | BD2GI | | 21312 | 300534060714500 | | 5601685 | | 10-Dec-2020 | | -55.0 | | 65.5 | | SHIRASE | DBi | | BD2GI | | 21312 | 300534060714510 | | 5601686 | | 10-Dec-2020 | | -57.5 | | 61.4 | | SHIRASE | DBi | | BD2GI | | 21312 | 300534060714230 | | 5601683 | | 08-Dec-2020 | | -48.8 | | 75.7 | | SHIRASE | DBi | | BD2GI | | 21312 | 300534060353460 | | 3201825 | | 29-Oct-2020 | | -42.0 | | -82.4 | | NATHANIEL B PAL | DBi | | BD2GI | | 21312 | 300534060354010 | | 3201826 | | 28-Oct-2020 | | -37.0 | | -85.3 | | NATHANIEL B PAL | DBi | | BD2GI | | 21312 | 300534060354430 | | 3201827 | | 27-Oct-2020 | | -34.0 | | -86.9 | | NATHANIEL B PAL | DBi | | BD2GI | | 21312 | 300534060751060 | | 4301596 | | 24-Oct-2020 | | -23.0 | | -92.5 | | NATHANIEL B PAL | DBi | | SVP3GI | | 21312 | 300534060751070 | | 4301597 | | 23-Oct-2020 | | -16.0 | | -94.8 | | NATHANIEL B PAL | DBi | | SVP3GI | | 21312 | 300534060752080 | | 4301598 | | 18-Oct-2020 | | -1.0 | | -102.6 | | NATHANIEL B PAL | DBi | | SVP3GI | | 21312 | 300234067540130 | | 1701612 | | 07-Oct-2020 | | -34.5 | | 15.0 | | ALGOA | DBi | | BD2GI | | 21312 | 300234068342220 | | 6501699 | | 23-Aug-2020 | | 60.1 | | -47.1 | | R/V MARIA S. ME | SIO | | SVPGHI | | 21312 | 300234067875370 | | 4601805 | | 14-Aug-2020 | | 49.4 | | -142.0 | | R/V OSCAR DYSON | Pacific Gy | | SVP3GI | | 21312 | 300234067649510 | | 3201796 | | 09-Jul-2020 | | -8.0 | | -105.0 | | R/V DISCOVERY | DBi | | SVP3GI | | 21312 | 300234067278400 | | 1501676 | | 03-Apr-2020 | | -10.0 | | -25.0 | | RONALD BROWN | Pacific Gy | | SVP3GI | | 21312 | 300234066714270 | | 6202655 | | 18-Mar-2020 | | -35.3 | | -4.9 | | NRP SAGRES | DBi | | SVP3GI | | 21312 | 300234067279400 | | 1501683 | | 06-Mar-2020 | | -21.0 | | -5.0 | | RONALD BROWN | Pacific Gy | | SVP3GI | | 21312 | 300234067279370 | | 1501682 | | 03-Mar-2020 | | -13.7 | | -15.0 | | RONALD BROWN | Pacific Gy | | SVP3GI | | 21312 | 300234066913810 | | 3301575 | | 09-Feb-2020 | | -60.0 | | -63.3 | | LM GOULD | DBi | | BD2GI | | 21312 | 300234067241780 | | 5501637 | | 01-Dec-2019 | | -20.7 | | -177.9 | | R/V L ATALANTE | Pacific Gy | | BD2GI | | 21312 | 300234067243620 | | 5501643 | | 23-Nov-2019 | | -19.4 | | -175.0 | | R/V L ATALANTE | Pacific Gy | | BD2GI | | 21312 | 300234066021230 | | 4601693 | | 27-Sep-2019 | | 33.3 | | 141.3 | | KEO | DBi | | SVP3GI | | 21312 | 300234065259010 | | 1701531 | | 15-Aug-2019 | | -54.8 | | -34.4 | | SA AGULHAS | DBi | | BD2GI | | 21312 | 300234066020220 | | 3401631 | | 26-Apr-2019 | | -29.2 | | -77.5 | | STRATUS | DBi | | SVP3GI | | 21312 | 300234065580270 | | 5401667 | | 14-Jan-2019 | | -64.0 | | 176.4 | | R/V TANGAROA | DBi | | BD2GI | | 21312 | |
Specification sheet info for dead drifters not in deployment log (underlined: aground/picked up):
| ID | MANUFACTURER | TYPE | TRANSMISSION| 300534065478480: | | not in spec sheet300534064235310 | | SIO | | BD2VHI | | 300534064234950 | | SIO | | BD2VHI | | 300534065076500 | | SIO | | BD2GHI | | 300534065371980 | | Pacific Gy | | SVP3A3 | | 300534065372940 | | Pacific Gy | | SVP3A3 | | 300534064892860 | | NKE | | BD2GHI | | 300534064280520 | | Pacific Gy | | SVP3A3 | | 300534064280540 | | Pacific Gy | | SVP3A3 | | 300534060719690 | | Pacific Gy | | BD2A3 | | 300534064593020 | | Pacific Gy | | SVP3A3 | | 300534063803900 | | Pacific Gy | | SVP3A3 | | |