| Datasets | Areal Coverage | Grid Size | Time Step | Time Coverage | Levels |
|---|
| CMAP Precipitation
|
| Global | 2.5°x2.5° |
Monthly,Pentad | 1979- | None |
| CPC .25x.25 Daily US Unified Precipitation
|
| U.S. | .25°x.25° | Daily | 1948-1998 | None |
| CPC Soil Moisture
|
| Global | 2.5°x2.5° |
Monthly | 1948-present | None |
| CRU Air Temperature and Combined Air Temperature/Marine Anomalies
|
| Global | 5.0°x5.0° |
Monthly | 1851-present | None |
| CRU Air Temperature and Combined Air Temperature/Marine Anomalies V3
|
| Global | 5.0°x5.0° |
Monthly | 1850-present | None |
| Dai Palmer Drought Severity Index
|
| Global: 58S-76N | 2.5°x2.5° |
Monthly | 1870-2003 | None |
| GISS surface temperature analysis
|
| Global | 1.0°x1.0° |
Monthly | 1880-present | None |
| GPCP V2 Precipitation
|
| Global | 2.5°x2.5° |
Monthly | 1979-2005 | None |
| ICOADS
|
| Global | 2.0°x2.0°,1.0°x1.0° |
Monthly | 1800-2005 | None |
| Kaplan SST
|
| Global | 5.0°x5.0° |
Monthly | 1856-present | None |
| MSU
|
| Global | 2.5°x2.5° |
Daily, Monthly | 1979-1996 | None |
| North American Regional Renalaysis (NARR)
|
| Northern Hemisphere | 32km grids |
8X Daily, Daily, Monthly | 1979-2004 | 28 Pressure |
| NCEP Operational Analysis
|
| Global | 2.5°x2.5° |
Daily | 1979-2005 | None |
| NCEP Marine
|
| Global | 2.0°x2.0° |
Monthly | 1991-present | None |
| NOAA Extended Reconstructed SST
|
| Global | 1.0°x1.0° |
Monthly | 1854-2006 | None |
| NOAA Merged Air and Sea Surface Temperature
|
| Global | 5.0°x5.0° |
Monthly | 1880-present | None |
| NOAA Optimum Interpolation (OI) SST V2
|
| Global | 1.0°x1.0° |
Monthly,Weekly | 1981-present | None |
| NCEP Pacific Ocean Analysis
|
| Global | 1.0°x1.5° |
Weekly, Monthly | 1992-present | None |
| NCEP/NCAR Reanalysis
|
| Global | 2.5°x2.5°, T42 Gaussian, T62 spectral |
4X Daily, Daily, Monthly | 1948-present | 17 pressure levels, 28 spectral |
| PSD Derived NCEP/NCAR Reanalysis Products
|
| Global | 2.5°x2.5°, T62 Gaussian |
Daily, Monthly | 1948-present | 17 pressure levels, 28 spectral |
| NCEP/DOE Reanalysis II
|
| Global | 2.5°x2.5° |
4X Daily, Daily, Monthly | 1979-2004 | 17 Pressure levels |
| NODC (Levitus) World Ocean Atlas 1994
|
| Global | 1.0°x1.0° |
Monthly,Annual | Climo | None |
| NODC (Levitus) World Ocean Atlas 1998
|
| Global | 1.0°x1.0° |
Monthly,Annual | Climo | None |
| Northern Hemisphere EASE-Grid Snow Cover and Sea Ice Extent
|
| Northern Hemisphere | 1.0°x1.0° |
Monthly | 1971-1995 | None |
| Uninterpolated OLR
|
| Global | 2.5°x2.5° |
Daily | 1991-present | None |
| U. of Delaware Precipitation and Air Temperature
|
| Global Land | 0.5°x0.5° |
Monthly | 1950-1999 | None |
