Table 1 Bloom start (day of year), end (day of year), and length (days) and annual and bloom NPP (Tg C) in 1970, 2020, and 2100, and change in timing (days) or NPP (Tg C) relative to 1970 for the Arctic Ocean (> 66.5°N) or the Arctic and sub-Arctic (> 50°N)
Metric | Region | 1970 | 2020 | 2100 | 2020–1970 | 2100–1970 |
|---|---|---|---|---|---|---|
Bloom Start | > 50°N | 135 ± 2 | 131 ± 2 | 110 ± 3 | −4 | −25 |
> 66.5°N | 163 ± 3 | 158 ± 2 | 129 ± 4 | −5 | −34 | |
Bloom End | > 50°N | 205 ± 2 | 200 ± 2 | 186 ± 3 | −5 | −19 |
> 66.5°N | 230 ± 3 | 225 ± 3 | 211 ± 4 | −5 | −19 | |
Bloom Length | > 50°N | 70 ± 3 | 69 ± 2 | 76 ± 3 | −1 | +6 |
> 66.5°N | 67 ± 4 | 68 ± 2 | 82 ± 4 | - | +14 | |
Annual NPP | > 50°N | 2201 ± 42 | 2250 ± 59 | 1902 ± 74 | +49 | −299 |
> 66.5°N | 403 ± 22 | 464 ± 23 | 465 ± 42 | +61 | +62 | |
Bloom NPP | > 50°N | 1248 ± 49 | 1235 ± 50 | 943 ± 55 | −13 | −305 |
> 66.5°N | 269 ± 19 | 307 ± 20 | 311 ± 29 | +38 | +42 |
