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Bugfix #2087 main_v5.0 docs_pdf (#2092)
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JohnHalleyGotway authored Mar 16, 2023
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2 changes: 1 addition & 1 deletion docs/Users_Guide/statistics_list.rst
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Use Case
- n/a
* - Spatial distance between :raw-html:`<br />`
(𝑥,𝑦)(x,y) coordinates of :raw-html:`<br />`
:math:`(x,y)` coordinates of :raw-html:`<br />`
object spacetime centroid
- SPACE :raw-html:`<br />`
_CENTROID :raw-html:`<br />`
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# --------------------
#
# Run PCPCombine, GenEnsProd, and RegridDataPlane tools to create surrogate severe probability
# forecasts (SSPFs) for a given date. SSPFs are a severe weather forecasting tool and is a techniqu
# used by the Storm Prediction Center (SPC) as well as others. SSPFs are based on updraft helicity
# (UH; UH = ∫z0 to zt (ω * ζ) dz) since certain thresholds of UH have been shown as good proxies for# severe weather. SSPFs can be thought of as the perfect model forecast. They are derived as follows:
# forecasts (SSPFs) for a given date. SSPFs are a severe weather forecasting tool and is a technique
# used by the Storm Prediction Center (SPC) as well as others. SSPFs are based on updraft helicity
# (UH; :math:`\text{UH} = \int_{z_0}^{z_t} ( \omega * \zeta ) dz`) since certain thresholds of UH
# have been shown as good proxies for severe weather. SSPFs can be thought of as the perfect model
# forecast. They are derived as follows:
#
# 1. Regrid the maximum UH value over the 2-5km layer at each grid point to the NCEP 211 grid (dx = ~80km).
# 2. Create a binary mask of points that meet a given threshold of UH)
# 2. Create a binary mask of points that meet a given threshold of UH.
# 3. Convert the binary mask into a probability field by applying a Gaussian filter.
#
# For more information, please reference Sobash et al. 2011 (https://journals.ametsoc.org/doi/full/10.1175/WAF-D-10-05046.1).
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