FY April 01, 2010 to June 30, 2011 Total scenes process (RS-1, RS-2 and ASAR) = 21335
Statistical characteristics for the developed models are summarized in this slide. The accuracy of models is characterised by Root Mean Square Error and R squared between buoy wind speed and retrieval wind speed. The results are presented for training and testing subsets. For comparison the same results for CMOD_IFR2 are shown also. Developed models have better accuracy than CMOD_IFR2.
January, 2011 Total (RS-1 (397), RS-2 (724) & ASAR (222)) = 1343 February, 2011 Total (RS-1 (354), RS-2 (627) & ASAR(220) ) = 1201 March, 2011 Total (RS-1 (341), RS-2 (626)) = 967 April, 2011 Total (RS-1 (264), RS-2 (974)) = 1238 May, 2011 Total (RS-1 (396), RS-2 (832)) = 1228 June, 2011 Total (RS-1 (517), RS-2 (815), ASAR (563)) = 1895
IGARSS-July-2011-final radarsat application in ocean wind measurements.ppt
RADARSAT APPLICATION IN OCEAN WIND MEASUREMENTS Vladimir Zabeline, Laurie Neil, Shahid Khurshid Chris Fogarty, William Perrie, Paris W. Vachon, Sergey Komarov IGARSS July 28, 2011 Vancouver
NSW Project Objectives Implement a quasi-operational SAR wind processing system on a national scale Identify the best system architecture for the National operational SAR wind processing system within EC Conduct assessment and cost-benefit analysis as the basis for EC decision regarding an on-going operational system Ensure effective communication with, and training of end users Encourage and facilitate collaboration between all users of SAR data (internal, interdepartmental, international)
Expected Outcomes <ul><li>National quasi-operational prototype of the SAR Wind system; </li></ul><ul><li>Recommendations to EC Management on the future operationalization based on : </li></ul><ul><ul><li>Users’ feedback and the cost-benefit analysis </li></ul></ul><ul><ul><li>Optimal image ordering strategy </li></ul></ul><ul><ul><li>Architecture of operational system (locations and number of nodes, governance etc.) </li></ul></ul><ul><ul><li>Opportunities for future improvements </li></ul></ul>
The Evolution of NSW Transition Period Operations Decision Point
NSW – Prototype System National SAR Wind “ Wind Information Processing System” NSW-WIPS Visual Product Generator NWP Model Wind Information www.cwinds.ca/nsw Observations (Buoys Only) RADARSAT-1 RADARSAT-2 ENVISAT-ASAR
NSW Accomplishment <ul><li>Quasi-operational for 23 months (>15000 images processed FY 2010-11) </li></ul><ul><li>Coverage of all Canadian Coastal Water (incl. METAREAS) </li></ul><ul><li>NSW products available on Ninjo (via CMC) </li></ul><ul><li>Implementation of in-house built advanced cross-polarization based models </li></ul><ul><li>Nation-wide training program (185 participants) </li></ul><ul><li>SAR Winds users community: SharePoint & two wiki sites </li></ul><ul><li>Two National workshops on “SAR Wind Operationalization” </li></ul><ul><li>NSW revealed strong internal and external demand: </li></ul><ul><ul><li>User Survey (>200 survey - 5 regions) </li></ul></ul><ul><ul><li>97% support for a fully operational NSW </li></ul></ul><ul><ul><li>DND & DFO requested to maintain SAR Winds production </li></ul></ul>
Testing results of different regression models MODEL VARIABLES TESTING SUBSET N=257 TRANING SUBSET N=313 RMSE (m/s) R squared RMSE (m/s) R squared VV+VH X X X 1.3249 0.8795 1.2499 0.8606 VV+VH+DIR X X X X 1.3126 0.8835 1.1278 0.8865 CMOD VV X X X 1.5170 0.9191 1.5083 0.8442 MODEL VARIABLES TESTING SUBSET N=57 TRANING SUBSET N=162 RMSE (m/s) R squared RMSE (m/s) R squared HH+HV X X X 1.7195 0.7731 1.6111 0.8326 HH+HV+DIR X X X X 1.3717 0.8524 1.3779 0.8775 CMOD HH X X X 2.1841 0.7012 2.2830 0.7848
NSW Spatial Coverage Atlantic Region (AR) Ontario Region (OR) Prairie & Northern Region Inland Lakes (PNR-Inland Lakes) Quebec Region (QR) Pacific & Yukon Region (PYR) Hudson & James Bay Region (HJBayR)
METAREAs Obligations NSW’s potential contribution to meeting Canada’s METAREAs obligations. The Map illustrates one day of SAR coverage from RADARSAT-2 (July 18, 2010). This is illustrative of current SAR coverage. Additional SAR missions, including the RADARSAT Constellation Mission (2016) will provide full Arctic coverage 2-3 times per day.
Training Ap-09 Mar-11 National SAR Wind Project (NSWP) April 2009 to March 2011 Halifax by Dr. Chris Fogarty Feb, 2010 2 day Training session Toronto by Laurie Neil March, 2010 2 day Training session Vancouver by Laurie Neil May, 2010 2 day Training Session Edmonton by Laurie Neil September, 2010 2 day Training Session Winnipeg by Laurie Neil October, 2010 2 day Training Session Quebec by Marie-France Turcotte November, 2010 3 day Training Session
SAR Winds: Operational Forecasting Hi-res numerical model Hi-res SAR imagery Bank of knowledge to be used in the future; Users develop/refine conceptual models Forecaster assimilates info for the day Existing forecast Updated forecast SAR imagery Future forecast Hi-res numerical model SAR imagery Amended forecast and warning when required Updated forecast Forecast Team Software Teams Forecast Cycle Future Forecast Cycles… ongoing science training and maintenance training via Change Management Process 24/7 operational support New science/ algorithms (Lab)
NSW Web Portal – CWINDS.CA Wind Speed Legend Swath SAR Scene, NWP model and Buoy details Current & Previous Month
Strong Outflow Winds - Baffin Island Pangnirtung Extremely strong outflow winds through Pangnirtung and Kingnait Fiord on Baffin Island. At the time of this image (November 27, 10:36 GMT) winds at Pangnirtung were gusting over 80 km/hr. Within 2 hours after this image, gusts were near 130 km/hr.