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Global Atlas of Siting Parameters V1
dataset
posted on 2021-06-23, 06:52 authored by Xiaoli Guo LarsénXiaoli Guo Larsén, Neil DavisNeil Davis, Ásta HannesdóttirÁsta Hannesdóttir, Mark C. KellyMark C. Kelly, Lasse Svenningsen, René Meklenborg Miltersen Slot, Marc ImbergerMarc Imberger, Bjarke Tobias OlsenBjarke Tobias Olsen, Rogier Ralph FloorsRogier Ralph Floors, Thorkild Guldager Sørensen, Morten ThøgersenThe Global Atlas of Siting Parameters version 1 data-sets contain microscale wind information at approximately 250m grid point spacing.
The data in this directory consist of the entire global tiff at the full 0.0025 degree resolution on the WGS84 map projection. These data also include foverview pyramids to improve the viewing of the data at low resolution.
Most of the data are named as follows: gasp_{variable}_{height}_cog.tif, where variable is one of the following:
Atmospheric Variables
* flow-inclination - Flow inclination angle calculated using the LINCOM linear flow model.
* shear-exponent - Terrain-affected shear exponent calculated using the LINCOM linear flow model.
* turbulence-intensity - Mean turbulence intensity, calculated using an ensemble of four models onshore, and two models offshore.
* V50 - The 50 year return wind speed, using a 10-minute averaging time.
This was calculated by downscaling the CFSR data using a combination of
the Spectral Correction method and the LINCOM linear flow model.
Loads
* fls-class-nowake – IEC turbine class based on the fatigue limit state (fatigue loads), which accounts for normal conditions like wind speed distribution and effective turbulence, not including wake effects.
* fls-class-wake - IEC turbine class based on the fatigue limit state (fatigue loads), which accounts for normal conditions like wind speed distribution and effective turbulence including wake effects.
* uls-class - IEC turbine class based on the ultimate limit state (extreme loads), which is based on the V50 and air density at high wind speed.
Uncertainty
* uncertainty-ti - Uncertainty classification of turbulence intensity
* uncertainty-V50 - Uncertainty classification of V50
Terrain
* terrain-complexity - IEC based classification of terrain complexity
Funding
EUDP 64018-0095
History
Topic
- Siting;>Wind Atlases
- Siting;>Design conditions;>Extreme wind
- Siting;>Design conditions;>Turbulence
- Siting;>Design conditions;>Shear
- Siting;>Design conditions;>Flow angle
- Siting;>Design conditions;>Other
Models
- Flow;>Linearized
- Flow;>Analytical
Activities
- Modeling
External conditions
- Location;>Offshore;>Nearshore
- Location;>Offshore;>Offshore
- Location;>Onshore;>Coastal
- Location;>Onshore;>Inland
- Topography;>Forest
- Topography;>Urban
- Topography;>Rural
- Topography;>Semi-urban
- Terrain type;>Complex;>Hilly
- Terrain type;>Complex;>Ridge
- Terrain type;>Complex;>Escarpment
- Terrain type;>Complex;>Other
- Water depth category;>Deep water
- Water depth category;>Shallow water
Data category
- Meteorological data
- Topographic data
