| ERA-Interim | A Forty-Year European Re-Analysis (ERA-40) |
NCEP/DOE Reanalysis (Reanalysis-2) |
Japanese 25-year ReAnalysis (JRA-25) |
JMA Climate Data Assimilation System (JCDAS) |
Japanese 55-year ReAnalysis (JRA-55) |
NASA's Modern-Era Retrospective Analysis for Research and Applications (MERRA) |
NASA's Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA2) |
|
|---|---|---|---|---|---|---|---|---|
| Period | Jan. 1, 1979- Aug. 31, 2019 |
Sep. 1, 1957- Aug. 31, 2002 |
Jan. 1, 1979- Feb. 29, 2024 |
Jan. 1, 1979- Dec. 31, 2004 |
Jan. 1, 2005- Nov. 30, 2013 |
Oct. 1, 1957- Jan. 31, 2024 |
Jan. 1, 1979- Feb. 29, 2016 |
Jan. 1, 1980- Mar. 31, 2024 |
| Frequency | 4 times daily (00, 06, 12, 18 UTC) | 8 times daily (00, 03, 06, 09, 12, 15, 18, 21 UTC) | ||||||
| Horizontal Resolution | 1.5 (degree) x 1.5 (degree) | 2.5 (degree) x 2.5 (degree) | 1.25 (degree) x 1.25 (degree) | 0.625 (degree) x 0.5 (degree) | ||||
| Pressure Levels | 37 Levels (1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 700, 650, 600, 550, 500, 450, 400, 350, 300, 250, 225, 200, 175, 150, 125, 100, 70, 50, 30, 20, 10, 7, 5, 3, 2, 1 hPa) |
23 Levels (1000, 925, 850, 775, 700, 600, 500, 400, 300, 250, 200, 150, 100, 70, 50, 30, 20, 10, 7, 5, 3, 2, 1 hPa) |
17 Levels (1000, 925, 850, 700, 600, 500, 400, 300, 250, 200, 150, 100, 70, 50, 30, 20, 10 hPa) |
22 Levels (1000, 925, 850, 700, 600, 500, 400, 300, 250, 200, 150, 100, 70, 50, 30, 20, 10, 7, 5, 3, 2, 1 hPa) |
37 Levels (1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 700, 650, 600, 550, 500, 450, 400, 350, 300, 250, 225, 200, 175, 150, 125, 100, 70, 50, 30, 20, 10, 7, 5, 3, 2, 1 hPa) |
42 Levels (1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725, 700, 650, 600, 550, 500, 450, 400, 350, 300, 250, 200, 150, 100, 70, 50, 40, 30, 20, 10, 7, 5, 4, 3, 2, 1, 0.7, 0.5, 0.4, 0.3, 0.1 hPa) |
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