| Nimbus-7 SMMR Pathfinder Daily EASE-Grid Brightness Temperatures, Version 1 User Guide | User Guide | 368.93 KB |
| Nimbus-7 SMMR Polar Gridded Radiances and Sea Ice Concentrations, Version 1 User Guide | User Guide | 178.57 KB |
| NOAA Ice Observation Handbook 1991 | General Resources | 33.9 MB |
| NOAA Polar-Orbiting Operational Satellite (POES) Global Visible and Infrared Band Data from ESSA (1966 - 1972) and NOAA (1972 - 1978) Satellites, Version 1 User Guide | User Guide | 3.36 MB |
| NOAA@NSIDC's IPY/SEARCH Activities | General Resources | 232.37 KB |
| NOAA/NMC/CAC Arctic and Antarctic Monthly Sea Ice Extent, 1973-1990, Version 1 User Guide | User Guide | 120.31 KB |
| NOAA/NSIDC Climate Data Record of Passive Microwave 12.5 km Sea Ice Concentration, Version 5 User Guide | User Guide | 671.22 KB |
| NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration | User Guide | |
| NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration, Version 3 User Guide | User Guide | 596.96 KB |
| NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration, Version 4 User Guide | User Guide | 633.55 KB |
| Northern Circumpolar Soils Map, Version 1 User Guide | User Guide | 64.37 KB |
| Northern Hemisphere Cyclone Locations and Characteristics from NCEP/NCAR Reanalysis Data, Version 1 User Guide | User Guide | 272.1 KB |
| Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent, Version 4 User Guide | User Guide | 638.47 KB |
| Northern Hemisphere EASE-Grid Annual Freezing and Thawing Indices, 1901 - 2002 | User Guide | 175.94 KB |
| Northern Hemisphere Seasonal and Intermittent Frozen Ground Areas 1901-2001 | User Guide | 100.28 KB |
| Norwegian North Polar Expedition 1893-1896: Oceanographic Data, Version 1 User Guide | User Guide | 200.39 KB |
| NSCAT Twice-Daily SIR-Enhanced Scatterometer EASE-Grid 2.0 Radar Backscatter Algorithm Theoretical Basis Document, Version 1.1 | ATBDs | 39.15 MB |
| NSIDC-0079 v004 User Guide [2023] | User Guide | 264.81 KB |
| NSIDC-0450 Technical Reference | ATBDs | 84.66 KB |
| NSIDC-0451 Daily Global Land Parameters Derived from AMSR-E and AMSR2 V2 | General Resources | 1.61 MB |