Warning Decision Support System -- Integrated Information

Automated algorithms, tools and displays for analysis, diagnosis and forecasts of severe weather phenomena       www.wdssii.org

WDSS-II

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WDSS-II and its component algorithms are described in several scientific articles. Please reference one or more of these articles if you make use of the algorithms or data feeds that they describe.

 

Algorithm or data feed

Description

Formal citation

WDSS-II

WDSS-II as a whole

V. Lakshmanan, T. Smith, G. J. Stumpf, and K. Hondl, ``The warning decision support system - integrated information,'' Weather and Forecasting, vol. 22, no. 3, pp. 596-612, 2007.

Miscellaneous tools

Spatial analysis tools in WDSS-II

V. Lakshmanan, Automating the Analysis of Spatial Grids: A Practical Guide to Data Mining Geospatial Images for Human and Environmental Applications
Springer, 2012. 
ISBN: 978-94-007-4074-7. 

w2merger

How data from multiple radars are combined

V. Lakshmanan and T. W. Humphrey, ``A mapreduce technique to mosaic continental-scale weather radar data in real-time,'' IEEE J. of Select Topics in Appl. Earth Obs. and Remote Sensing, in Review, 2013.

 

V. Lakshmanan, T. Smith, K. Hondl, G. J. Stumpf, and A. Witt, ``A real-time, three dimensional, rapidly updating, heterogeneous radar merger technique for reflectivity, velocity and derived products,'' Weather and Forecasting, vol. 21, no. 5, pp. 802-823, 2006.

w2merger (POSH, SHI, etc.)

Hail algorithms

Ortega, K.L., T.M. Smith, K.L. Manross, K.A. Scharfenberg, A. Witt, A.G. Kolodziej, and J.J. Gourley, 2009: The Severe Hazards Analysis and Verification Experiment. Bull. Amer. Meteor. Soc., 90, 15191530

J. Cintineo, T. Smith, V. Lakshmanan, H. Brooks, and K. Ortega, ``An objective high-resolution hail climatology of the contiguous united states,'' Wea. Forecasting, vol. 27, pp. 1235-1248, 2012.

w2segmotionll -X

Probability of cloud-to-ground lightning

(1)    V. Lakshmanan and T. Smith, ``Data mining storm attributes from spatial grids,'' J. Ocea. and Atmos. Tech., vol. 26, no. 11, pp. 2353-2365, 2009.

(2)    V. Lakshmanan and T. Smith, ``Lighting warning and prediction using observations and models,'' in 4th Conference on the Meteorological Applications of Lightning Data, (Phoenix), p. 6.4, Amer. Meteor. Soc., Jan 2009

w2segmotionll -X

Automated storm type classification

(1)    V. Lakshmanan and T. Smith, ``Data mining storm attributes from spatial grids,'' J. Ocea. and Atmos. Tech., vol. 26, no. 11, pp. 2353-2365, 2009.

(2)    Kolodziej, A. and V. Lakshmanan, Using a K-Means clustering and watershed algorithm to automatically classify convective storm types in 8th Conference on Artificial Intelligence Applications to Environmental Science, (Altanta) p 455, Amer. Meteo. Soc., Jan 2010

w2segmotionll/cg or w2localmax or

w2advectorll/cg

(1)   Identifying storm cells

 

(2) Tracking cells

 

(2)   Motion estimation and Advection

 

(3)   Attribute extraction

(1)    V. Lakshmanan, K. Hondl, and R. Rabin, ``An efficient, general-purpose technique for identifying storm cells in geospatial images,'' J. Ocean. Atmos. Tech., vol. 26, , no. 3, pp. 523-37, 2009

 

(2)    V. Lakshmanan and T. Smith, ``An objective method of evaluating and devising storm tracking algorithms,'' Wea. and Forecasting, pp. 721-729, vol. 29 no. 3, 2010. 

 

(3)    V. Lakshmanan, R. Rabin, and V. DeBrunner, ``Multiscale storm identification and forecast,'' J. Atm. Res., vol. 67, pp. 367-380, July 2003.

 

(4)   V. Lakshmanan and T. Smith, ``Data mining storm attributes from spatial grids,'' J. Ocea. and Atmos. Tech., vol. 26, no. 11, pp. 2353-2365, 2009.

w2qcnn

Radar data quality control

(1) V. Lakshmanan, A. Fritz, T. Smith, K. Hondl, and G. J. Stumpf, ``An automated technique to quality control radar reflectivity data,'' J. Applied Meteorology, vol. 4

(2) V. Lakshmanan, J. Zhang, and K. Howard, ``A technique to censor biological echoes in radar reflectivity data,'' J. Applied Meteorology, vol. 49, pp. 435-462, 3 2010

w2qcnndp

Radar data quality control using dual-pol variables

V. Lakshmanan, C. Karstens, J. Krause, and L. Tang, ``Quality control of weather radar data using polarimetric variables,'' J. Atm. Ocea. Tech., vol. 0, p. under review, 2013.

w2ltg

Total Lightning density

V. Lakshmanan, K. Hondl, and G. Stumpf, ``Preprints, the uses of lightning mapping array data in WDSS-II,'' in 22nd Conference on Severe Local Storms, (Hyan

w2smooth

Smoothing filters

V. Lakshmanan, ``A separable filter for directional smoothing,'' IEEE Geosc. and Remote Sensing Letters, vol. 1, pp. 192-195, 7 2004.

w2circ, rotation tracks

Azimuthal shear

Smith, T.M. and K. L. Elmore, 2004: The use of radial velocity derivatives to diagnose rotation and divergence. Preprints, 11th Conf. on Aviation, Range, and Aerospace, Hyannis, MA, Amer. Meteor. Soc., P5.6 - CD preprints.

M. Miller, V. Lakshmanan, and T. Smith, ``An automated method for depicting mesocyclone paths and intensities,'' Wea. Forecasting, vol. 1, p. 1, 2012. 

V. Lakshmanan, M. Miller, and T. Smith, ``Quality control of accumulated fields by applying spatial and temporal constraints,'' J. Atmos. Ocean. Tech., vol. 30, pp. 745-757, 2013

w2accumulator

Rotation tracks, hail tracks, etc.

V. Lakshmanan, M. Miller, and T. Smith, ``Quality control of accumulated fields by applying spatial and temporal constraints,'' J. Atmos. Ocean. Tech., vol. 30, pp. 745-757, 2013. 

w2birddensity

Estimating bird density based on VPR

Buler, J. and Lakshmanan, V. and La Puma, D, “Improving Weather Radar Data Processing for Biological Research Applications: Final Report”, Technical Report to Patuxtent Wildlife Research Center, USGS, Laurel MD, 2012, 15pp.

Google Earth images from http://wdssii.nssl.noaa.gov/

The continental US (CONUS) WDSSII system and the KML markup of that data for Google Earth

1.       T. Smith and V. Lakshmanan, ``Real-time, rapidly updating severe weather products for virtual globes,'' Computers and Geosciences, p. subm., 2009

2.       V. Lakshmanan, T. Smith, K. Hondl, G. J. Stumpf, and A. Witt, ``A real-time, three dimensional, rapidly updating, heterogeneous radar merger technique for reflectivity, velocity and derived products,'' Weather and Forecasting, vol. 21, no. 5, pp. 802-823, 2006.

3.       Smith, T.M. and V. Lakshmanan, 2006: Utilizing Google Earth as a GIS platform for weather applications. 22nd Conference on Interactive Information Processing Systems, Atlanta, GA, Amer. Meteo. Soc.