Table 1 Summary of data and the periods used in this study.
Data name | Period | Temporal resolution | Spatial resolution | |
|---|---|---|---|---|
Input data for reconstruction | ICESat | 2003–2009 (Interruption exists) | — | — |
ICESat-2 | 2018–2024 | — | — | |
AMSR-E | 2003–2009 | Daily | 12.5 km | |
AMSR2 | 2018–2024 | Daily | 12.5 km | |
Reanalysis SIT for training PCNN | GLORYS12v1 | 1993–2020 | Daily | 1/12° |
C-GLORSv7 | 1989–2019 | Daily | 0.25° × 0.1° | |
SIT for comparison and validation | LEGOS | 2003–2009 | Monthly | 12.5 km |
SICCI | 2003–2009 | Monthly | 50 km | |
ULS | 2003–2009 | 2~15 min | — |
