Delivery of Suomi National Polar-orbiting Partnership (Suomi NPP) satellite data products will cease on November 1, 2026. Data users should transition now to alternative products from NOAA-21 and NOAA-20.Suomi NPP data announcement
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Description
This data set contains coarse scale elevation and elevation-based parameters at 1.0 and 0.5-degree spatial resolutions that were developed to support a wide variety of global modeling activities through the International Satellite Land Surface Climatology Project (ISLSCP) Initiative II data collection. These coarse scale data have sufficient statistical information (up to fourth moment) to allow a good statistical description of the sub-cell distribution of any particular elevation parameter (i.e. elevation, slope and aspect). The database used in the development effort was the HYDRO1k product (http://eros.usgs.gov/#/Find_Data/Products_and_Data_Available/HYDRO1K) with a native spatial resolution of 1 km, the highest resolution database of global coverage of standard elevation-based derivatives (slope, aspect, elevation, compound topographic index, etc.).
Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.
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Verdin, K. L., Hall, F. G., Collatz, G. J., Meeson, B. W., Los, S. O., Brown de Colstoun, E., & Landis, D. R. (2011). ISLSCP II HYDRO1k Elevation-derived Products (Version 1). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/1007 Date Accessed: 2026-08-08
Verdin, K.L., F.G. Hall, G.J. Collatz, B.W. Meeson, S.O. Los, E. Brown de Colstoun, and D.R. Landis. “ISLSCP II HYDRO1k Elevation-Derived Products.” ORNL Distributed Active Archive Center, January 1, 2011. doi:10.3334/ORNLDAAC/1007. Date Accessed: 2026-08-08
Verdin, K. L., et al. ISLSCP II HYDRO1k Elevation-Derived Products. 1, ORNL Distributed Active Archive Center, 1 Jan. 2011, doi:10.3334/ORNLDAAC/1007. Date Accessed: 2026-08-08