GRIB2 - TABLE 4.2-191-0

PARAMETERS FOR DISCIPLINE 191
CATEGORY 0

(Computational parameters, Stochastic Parameterizations category)

In Section 0, Octet 7 = 191
In Section 4, Octet 10 = 0

Created 09/17/2025


Number
(In Section 4, octet 11)
 Parameter Units
 Abbrev
0 Stochastically Perturbed Parameterization Tendency (SPPT) (see Note 1) Numeric SPPT
1 Stochastically Perturbed Parameterizations (SPP) (see Note 2) Numeric SPP
2 Stochastic Kinetic Energy Backscatter (SKEB) (see Note 3) Numeric SKEB
3 Stochastic Trigger of Convection (STC) (see Note 4) Numeric STC
4 Stochastic boundary-layer Humidity (SHUM) (see Note 5) Numeric SHUM
5 Stochastic Total Tendency Perturbations (STTP) (see Note 6) Numeric STTP
6-191 Reserved

192-254
 Reserved for Local Use

255
 Missing



Notes:

(1)  Buizza, R., M. Miller, and T. N. Palmer, 1999: Stochastic representation of model uncertainties in the ECMWF ensemble prediction system. Quart. J. Roy. Meteor. Soc., 125, 2887-2908

(2)  Lang STK, Lock S-J, Leutbecher M, Bechtold P, Forbes RM. Revision of the Stochastically Perturbed Parametrisations model uncertainty scheme in the Integrated Forecasting System. Q J R Meteorol Soc. 2021; 147: 1364–1381. https://doi.org/10.1002/qj.3978

(3)  Shutts, G., 2004. A stochastic kinetic energy backscatter algorithm for use in ensemble prediction systems. Technical Memorandum 449, ECMWF. Shutts, G., 2005: A kinetic energy backscatter algorithm for use in ensemble prediction systems. Quart. J. Roy. Meteor. Soc., 131, 3079-3102.

(4)  Du, Jun & Berner, Judith & Buizza, R. & Charron, Martin & Houtekamer, Pieter & Hou, Dingchen & Jankov, Isidora & Mu, Mu & Wang, Xuguang & Wei, Mozheng & Yuan, Huiling. (2018). Ensemble Methods for Meteorological Predictions. 10.1007/978-3-642-40457-3_13-1

(5)  Li J., J. Du and Y. Liu, 2015: A comparison of initial condition-, multi-physics- and stochastic physics-based ensembles in predicting Beijing “7.21” excessive storm rain event. Acta Meteorologica Sinica, 73(1), 50-71, DOI: 10.11676/qxxb2015.008

(6)  Hou, D., Z. Toth, and Y. Zhu, 2006: A Stochastic Parameterization Scheme within NCEP Global Ensemble Forecast System. 18th AMS conference on Probability and Statistics. Atlanta, GA, Jan. 29-Feb. 2, 2006; Hou, D., Z. Toth, Y. Zhu, and W. Yang, 2008: Impact of a Stochastic Perturbation Scheme on NCEP Global Ensemble Forecast System. 19th AMS conference on Probability and Statistics. New Orleans, LA, 20-24 Jan. 2008


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