Transitioning unique NASA data and research technologies to the NWS 1 Stephanie L Haines and Frank LaFontaine June 12, 2007 Compositing of MODIS Products.

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Presentation transcript:

transitioning unique NASA data and research technologies to the NWS 1 Stephanie L Haines and Frank LaFontaine June 12, 2007 Compositing of MODIS Products

transitioning unique NASA data and research technologies to the NWS 2Introduction Coastal NWS offices wanted high resolution SST product to address forecast problems Coastal NWS offices wanted high resolution SST product to address forecast problems Weather associated with land/sea breezes Weather associated with land/sea breezes Off shore weather such as clouds, precipitation, temperatures etc. Off shore weather such as clouds, precipitation, temperatures etc. Single pass of MODIS provides limited coverage Single pass of MODIS provides limited coverage Simple composite generated from multiple passes of MODIS data provides spatially continuous cloud free coverage Simple composite generated from multiple passes of MODIS data provides spatially continuous cloud free coverage Main assumption is that SST does not change significantly from one day to the next Main assumption is that SST does not change significantly from one day to the next High resolution (1 km), full coverage on a regional scale High resolution (1 km), full coverage on a regional scale Small scale features in SST gradients retained Small scale features in SST gradients retained Alternative to the Real-Time Global (RTG) SST analysis and/or the OSTIA analysis for model assimilation Alternative to the Real-Time Global (RTG) SST analysis and/or the OSTIA analysis for model assimilation Can also composite additional MODIS ocean color products such as chlorophyll Can also composite additional MODIS ocean color products such as chlorophyll

transitioning unique NASA data and research technologies to the NWS 3Methodology Use the 1km SST MODIS product to produce a detailed and spatially continuous SST field while minimizing cloud contamination and latency effects Use the 1km SST MODIS product to produce a detailed and spatially continuous SST field while minimizing cloud contamination and latency effects Obtain SST in real-time from University of South Florida (USF) Obtain SST in real-time from University of South Florida (USF) Generate a SPoRT MODIS cloud mask for the same pass Generate a SPoRT MODIS cloud mask for the same pass Retain 5 clear (as determined by the cloud mask) SST values for each pixel separately for day and night Retain 5 clear (as determined by the cloud mask) SST values for each pixel separately for day and night Average some of clear values to obtain a more consistent field Average some of clear values to obtain a more consistent field Evaluating the use of AMSR-E SST to reduce latency Evaluating the use of AMSR-E SST to reduce latency

transitioning unique NASA data and research technologies to the NWS 4 SST Comparisons MODIS SST composites generated 4 times daily at 1 km resolution MODIS SST composites generated 4 times daily at 1 km resolution RTG-SST once daily 0.5 degree or 1/12 degree resolution RTG-SST once daily 0.5 degree or 1/12 degree resolution OSTIA once daily 5 km resolution OSTIA once daily 5 km resolution Loops available online at Loops available online at Terra 04 UTCAqua 19 UTCTerra 16 UTCAqua 07 UTC RTG SST 0.5 degree OSTIA SST 5 km

transitioning unique NASA data and research technologies to the NWS 5 Work Performed Since Last SAC Operational domain expanded to include Central America and composites being provided to the SERVIR group Operational domain expanded to include Central America and composites being provided to the SERVIR group SST composites provided in near real time in GRIB (gridded binary) format for ease of use by modelers and additional users, used in several WRF modeling studies SST composites provided in near real time in GRIB (gridded binary) format for ease of use by modelers and additional users, used in several WRF modeling studies Composites also provided to Mobile and Miami NWS offices within AWIPS Composites also provided to Mobile and Miami NWS offices within AWIPS Journal article describing the method and validation for the May 2004 case, written and accepted for publication in the IEEE journal Transactions on Geoscience and Remote Sensing Journal article describing the method and validation for the May 2004 case, written and accepted for publication in the IEEE journal Transactions on Geoscience and Remote Sensing SST composites provided to WorldWinds Inc. SST composites provided to WorldWinds Inc. Ocean color products obtained from USF and compositing work begun Ocean color products obtained from USF and compositing work begun

transitioning unique NASA data and research technologies to the NWS 6 Proprietary MERGED ATLANTIC MODIS AND AVHRR SST PRODUCT MODIS composite SST serves as a data source for hybrid marine products. WxWorx, Inc. products available to marine customers MODIS SST data reaches over 8000 users in the marine community! NASA Products Support Marine Weather SPoRT provides WorldWinds Inc. MODIS SST composites for their analysis system WorldWinds packages SST with other marine products for distribution by WxWorx Inc. (an affiliate of Baron Services) In conjunction with XM Satellite Radio Inc., WxWorx provides up to date weather information for boat owners PC based display software hand-held applications

transitioning unique NASA data and research technologies to the NWS 7 Ocean Color Composites Obtaining in real time from University of South Florida the following products Obtaining in real time from University of South Florida the following products Chlorophyll Chlorophyll Total suspended matter Total suspended matter Fluorescence line height Fluorescence line height Started work on compositing these products Started work on compositing these products Of the two most recent values for each pixel, use the largest value in the composite Of the two most recent values for each pixel, use the largest value in the composite Composites and single passes put on web Composites and single passes put on web Single Pass of Aqua CHLAqua CHL Composite

transitioning unique NASA data and research technologies to the NWS 8 Future Work Continue to improve MODIS SST composites by Continue to improve MODIS SST composites by Improving latency by including AMSR-E SST in cloudy, non-coastal regions Improving latency by including AMSR-E SST in cloudy, non-coastal regions Improve the SPoRT MODIS cloud mask for ocean applications Improve the SPoRT MODIS cloud mask for ocean applications Improve the ocean color composites Improve the ocean color composites Learn about the products from USF experts Learn about the products from USF experts Adjust the compositing techniques Adjust the compositing techniques Looking at generating West Coast composites (requested by WorldWinds). Requires near real time source of MODIS data – both SST and cloud mask Looking at generating West Coast composites (requested by WorldWinds). Requires near real time source of MODIS data – both SST and cloud mask Provide ocean color composites to NWS offices, WorldWinds Inc. Provide ocean color composites to NWS offices, WorldWinds Inc. Support field programs (ex. TCSP (summer 06), TC4 (summer 07)). Support field programs (ex. TCSP (summer 06), TC4 (summer 07)). Proposals Proposals WRF linked with coastal ocean model into the North Carolina Forecast System - NASA provide SST data and other remote sensing expertise. ROSES 2007 – Disaster Management. PI: Adel Hanna (UNC-Chapel Hill), Jedlovec and Haines Co-PIs WRF linked with coastal ocean model into the North Carolina Forecast System - NASA provide SST data and other remote sensing expertise. ROSES 2007 – Disaster Management. PI: Adel Hanna (UNC-Chapel Hill), Jedlovec and Haines Co-PIs Daily Chlorophyll Products for Ecosystem and Fishery Applications, Co-PIs: Elizabeth Valenti (WorldWinds, Inc.) and Gary Jedlovec (NASA/MSFC) – RPC Council, May Daily Chlorophyll Products for Ecosystem and Fishery Applications, Co-PIs: Elizabeth Valenti (WorldWinds, Inc.) and Gary Jedlovec (NASA/MSFC) – RPC Council, May 2007.