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TitleDOCUMENT TYPEFILE SIZE
Northern Circumpolar Soils Map, Version 1 User GuideUser Guide64.37 KB
Northern Hemisphere Cyclone Locations and Characteristics from NCEP/NCAR Reanalysis Data, Version 1 User GuideUser Guide272.1 KB
Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent, Version 4 User GuideUser Guide638.47 KB
Northern Hemisphere EASE-Grid Annual Freezing and Thawing Indices, 1901 - 2002User Guide175.94 KB
Northern Hemisphere Seasonal and Intermittent Frozen Ground Areas 1901-2001User Guide100.28 KB
Norwegian North Polar Expedition 1893-1896: Oceanographic Data, Version 1 User GuideUser Guide200.39 KB
NSCAT Twice-Daily SIR-Enhanced Scatterometer EASE-Grid 2.0 Radar Backscatter Algorithm Theoretical Basis Document, Version 1.1ATBDs39.15 MB
NSIDC-0079 v004 User Guide [2023]User Guide264.81 KB
NSIDC-0450 Technical ReferenceATBDs84.66 KB
NSIDC-0451 Daily Global Land Parameters Derived from AMSR-E and AMSR2 V2General Resources1.61 MB
NSIDC-0481 Temporal Coverage by Grid and by YearGeneral Resources149.24 KB
NSIDC-0720 Instrument Coverage By YearGeneral Resources15.44 KB
NSIDC-0738 rSIR_SMAP Algorithm Theoretical Basis Document Version 2 [2021]ATBDs6.44 MB
NSIDC-0738 rSIR_SMAP Algorithm Theoretical Basis Document Version 3 [2024]ATBDs20.37 MB
NSIDC-0738 SMAP Twice-Daily rSIR-Enhanced EASE-Grid 2.0 Brightness Temperatures Algorithm Theoretical Basis Document, Version 1.0ATBDs6.38 MB
NSIDC-0774 Algorithm Theoretical Basis Document Version 1 [2023]ATBDs15.73 MB
NSIDC-0797-V001-UserGuideUser Guide294.41 KB
NWS Technical Procedures Bulletin No. 490 RUC20 - The 20-km version of the Rapid Update CycleValidation Campaign Documents1.39 MB
Observation-Corrected Precipitation for SMAP L4 Soil Moisture Products (v.6) and the GEOS R21C ReanalysisGeneral Resources404.11 KB
Observations for SEARCH: Data Integration for Arctic Reanalysis and Change DetectionGeneral Resources2.71 MB