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Wind Weibull K and A GIS Data Layer

Wind Weibull K and A GIS Data Layer

Designed for: Engineer/Consultant, Developer & Government Agency
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Product Description

Primary Uses

  • Utility-scale prospecting
  • Site assessment
  • Transmission planning

With annual 3TIER Wind Weibull GIS Data Layers, you have access to the most advanced global wind dataset ever created. Our scientifically derived data layers integrate spatial wind resource data directly into your own GIS mapping software for in-depth analysis, including site prospecting, sorting, and optimal selection.

Wind Weibull GIS Data Layer Sample

EFFICIENT SITING

By layering 3TIER Wind GIS Layers with each other you can get a complete sense of your resource potential. You can also use third-party layers, such as land ownership, population density, soil type, topography, and transmission and transportation infrastructure, to factor in many of the variables that affect the viability of a site. This enables you to identify promising locations more quickly, as well as understand potentially fatal flaws at a proposed site early in the prospecting process.

MOST ADVANCED DATASET AVAILABLE

Our seamless global wind dataset allows you to compare multiple sites with confidence, so you have a clearer picture of the risks involved for every potential site in your portfolio. A proprietary, 15 km resolution dataset has been derived for wide-scope prospecting and was developed using proven techniques, state-of-the-art numerical weather prediction (NWP) models, and publicly available observational data.

Technical Overview

Wind Weibull GIS Data Layer Sample

Data available for annual Weibull k and A values at multiple hub heights: 20, 50, and 80 meters above ground.

Multiple Format Delivery Options:

  • Arc ASCII Grid
  • CSV files
  • GeoTIFFs
  • KMZ files

Technical Highlights

  • Global coverage.
  • Spatial resolution of 15 km.
  • Model constrained by consistent, high-quality inputs from the NCAR/NCEP reanalysis.
  • Weibull values are derived from a mesoscale 10-year WRF (Weather Research and Forecasting) model run.
  • Data validated by 4000 NCEP-ADP network stations worldwide.
  • Validation Summary: The difference between our dataset and observations is less than 0.5 m/s at 50% of the stations, and the difference is less than 1 m/s at 78% of the stations. The overall bias is +0.05 m/s relative to NCEP-ADP observations, and the RMSE (Root Mean Square Error) is 0.93 m/s. Find our validation papers here.

More On Our Methodology

To produce the global wind dataset, 3TIER implemented an innovative physics-based NWP (Numerical Weather Prediction) modeling approach. Unlike traditional models that merely interpolate observed wind speeds between widely dispersed points, 3TIER's system simulates the interaction between the atmosphere and the earth's surface, to create a more robust and accurate wind climatology. 3TIER's technique captures the myriad processes responsible for wind—from jet level dynamics to surface level processes and everything in between. Using proven, state-of-the-art methods supported and continually enhanced by the global atmospheric science and research community, 3TIER is able to create realistic wind fields throughout the world.

Find our validation papers here.

If you are unfamiliar with the technical terminology on this page, please visit our Glossary for more information.

Geographic Availability

Available for All Regions
Product Available
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