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  • CIMSS Satellite Blog
    An AWIPS image of the MODIS Sea Surface Temperature SST product on 09 November 2012 with an overlay of SST contours from the RTG SST High Resolution model valid about 6 hours later above showed the residual impact of Hurricane Sandy on the axis of the Gulf Stream almost 2 weeks after Sandy moved through that area There were large eddy perturbations seen in the axis of the Gulf Stream and MODIS SST values of 80º F or higher darker red color enhancement that were not captured by the model analysis Posted in General interpretation MODIS No Comments Mountain waves downwind of the Sierra Nevada Range in California November 8th 2012 GOES 15 6 5 µm water vapor channel images click image to play animation McIDAS images of 4 km resolution GOES 15 6 5 µm water vapor channel data above click image to play animation showed the development of a series of well defined mountain waves immediately downwind of the high terrain of the Sierra Nevada mountains in California on 08 November 2012 This mountain wave signature indicates the potential for turbulence and there were a few pilot reports of light to moderate turbulence in that region between the altitudes of 25 000 and 38 000 feet above ground level 17 02 UTC 01 00 UTC Occasionally the crests of these mountain waves are marked by rotor clouds but they also frequently occur in clear air which underscores the importance of using water vapor imagery for their detection AWIPS images of 1 km resolution MODIS 6 7 µm water vapor channel 0 65 µm visible channel and 11 0 µm IR channel data at 20 32 UTC below showed that there were no cloud features present with some of the mountain waves or with the entire portion of any given mountain wave MODIS 6 5 µm water vapor channel 6 5 µm visible channel and 11 0 µm IR channel images Posted in Aviation GOES 15 MODIS No Comments Older Entries Newer Entries Webmaster Follow us on Search for Pages About this site CIMSS Satellite Proving Ground Contact us Mobile users POES AVHRR in AWIPS SatePedia Suomi NPP JPSS Proving Ground VISIT SHyMet Training Topics November 2012 M T W T F S S Oct 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Categories Air quality Antarctic Arctic AVHRR Aviation AWIPS II Calibration Anomalies Cloud Top Cooling Convective Initiation Fire detection Fog detection General interpretation GOES sounder GOES 10 GOES 11 GOES 12 GOES 13 GOES 14 GOES 15 GOES R Google Earth Heavy rain flooding Historical Hydrology Lightning Marine weather McIDAS V Meteosat MODIS MTSAT Other Satellites POES Red Green Blue RGB images Satellite winds Severe convection Suomi NPP Synthetic satellite imagery Training Tropical cyclones VIIRS Volcanic activity Web Map Server What the heck is this Winter weather Other blogs of interest AccuWeather Blogs CIMSS GOES

    Original URL path: http://cimss.ssec.wisc.edu/goes/blog/page/2 (2012-11-14)
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  • Contact Form -- CIMSS / UW-Madison
    Contact Us Publications Seminars Meetings CIMSS Home Research Software Data and Imagery Field Programs and Instruments Education Outreach and Training CIMSS Contact Form Organization Send to CIMSS Satellite Blog Subject Your Name Your Email Address Your message If you have

    Original URL path: http://cimss.ssec.wisc.edu/contact-form/index.php?name=CIMSS%20Satellite%20Blog (2012-11-14)
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  • About this site « CIMSS Satellite Blog
    Cooperative Institute for Meteorological Satellite Studies CIMSS University of Wisconsin Madison USA If you have any questions comments or suggestions about the CIMSS Satellite Blog feel free to send us email You can also follow CIMSS Satellite on Twitter for other examples of satellite imagery that might not necessarily get posted on this blog Posted in No Comments Webmaster Follow us on Search for Pages About this site CIMSS Satellite Proving Ground Contact us Mobile users POES AVHRR in AWIPS SatePedia Suomi NPP JPSS Proving Ground VISIT SHyMet Training Topics November 2012 M T W T F S S Oct 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Categories Air quality Antarctic Arctic AVHRR Aviation AWIPS II Calibration Anomalies Cloud Top Cooling Convective Initiation Fire detection Fog detection General interpretation GOES sounder GOES 10 GOES 11 GOES 12 GOES 13 GOES 14 GOES 15 GOES R Google Earth Heavy rain flooding Historical Hydrology Lightning Marine weather McIDAS V Meteosat MODIS MTSAT Other Satellites POES Red Green Blue RGB images Satellite winds Severe convection Suomi NPP Synthetic satellite imagery Training Tropical cyclones VIIRS Volcanic activity Web Map Server What the heck is this Winter weather Other blogs of interest AccuWeather Blogs CIMSS GOES Gallery CIMSS TPARC Support CIRA GOES R Proving Ground Blog EUMETSAT Image Gallery Geographic Information Network of Alaska GOES R and JPSS National Centers Perspective GOES R Fog Product Examples GOES R Hazardous Weather Testbed METSUL blog NOAA NESDIS Operational Significant Event Imagery NSSTC Collaborative Weather Blog PREDICT Field Experiment Blog The GOES R Proving Ground at the Aviation Weather Testbed The Wide World of SPoRT UMBC U S Air Quality The Smog Blog US Severe

    Original URL path: http://cimss.ssec.wisc.edu/goes/blog/about (2012-11-14)
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  • CIMSS “Satellite Proving Ground” « CIMSS Satellite Blog
    shows up as a lighter shade of gray on the visible image with significantly lower NDVI values around 0 2 to 0 3 lighter green colors In addition significantly warmer LST values were seen in the MAV being 20º 30º F warmer darker red colors compared to the surrounding forested areas similar warm LST values were also noted over cities and other heavily urbanized locations The NDVI and LST products may provide some value for forecasting tasks involving fire weather hydrology fog and or cumulus cloud field formation and maximum minimum temperature forecasting MODIS visible NDVI LST images The MODIS satellite images and products have been well received so far appearing in a number of Area Forecast Discussions issued by the National Weather Service forecast offices at Milwaukee Sullivan WI La Crosse WI Witchia KS Chicago IL Las Vegas NV Marquette MI North Webser IN Spokane WA and Billings MT 2 GOES Sounder Derived Product Imagery in AWIPS GOES sounder CAPE GOES sounder derived product imagery of Convective Available Potential Energy CAPE from 28 August 2007 above showed strong instability denoted by the red to violet colors along and ahead of an advancing cold frontal boundary the severe thunderstorms that later developed along the front produced large hail and damaging winds This sounder CAPE product compliments the sounder Lifted Index LI product that is currently available operationally in AWIPS the CAPE product can be used to diagnose areas of convective instability that might not be as well defined using the more basic LI algorithm GOES sounder total column ozone from 23 March 2007 below demonstrated the utility of this product for model verification purposes regions of high ozone are often co located with high values of potential vorticity potential vorticity anomalies due to a lowering of the dynamic tropopause in the vicinity of strong upper level troughs and cut off lows Elevated ozone values are also often present along the axes of well defined jet streaks GOES sounder total column ozone 3 GOES Mesoscale Winds in AWIPS Experimental GOES mesoscale winds A comparison of the experimental GOES mesoscale winds during the period from 12 46 14 16 UTC on 04 October 2007 above and the corresponding operational GOES high density winds that were available in AWIPS during that same 90 minute time period below showed a notable improvement in satellite derived atmospheric motion vector coverage both spatially and temporally using the CIMSS mesoscale winds Operational GOES high density winds 4 CRAS Synthetic Forecast Satellite Imagery in AWIPS CRAS forecast water vapor imagery The CIMSS Regional Assimilation System CRAS is a numerical weather prediction model that is specifically designed to correctly assimilate as much satellite data as possible the CRAS model also outputs synthetic satellite imagery forecasts of what the GOES water vapor channel and IR window channel imagery might look like at 3 hour intervals during any particular 72 hour forecast period The CRAS water vapor channel prediction from early October 2007 above showed alternating moist and dry band signatures associated with a series of frontal passages over the US and Canada An image combination of CRAS water vapor channel prediction CRAS IR window channel prediction below depicted a TUTT signature that was forecast to remain over the northwestern Gulf of Mexico far to the northwest of Hurricane Dean as it continued to intensify and move westward across the Caribbean Sea during August 2007 CRAS forecast water vapor IR imagery The CRAS forecast satellite images have also been well received so far appearing in a number of Area Forecast Discussions issued by the National Weather Service forecast office at Milwaukee Sullivan Wisconsin 5 Simulated ABI Imagery Hurricane Katrina simulated ABI imagery Simulated images for all 16 of the GOES R ABI channels are shown for Hurricane Katrina on 28 August 2005 above This simulation was performed using computing facilities at the National Center for Supercomputing Applications NCSA at the University of Illinois at Urbana Champaign Simulated atmospheric fields were generated using version 2 2 of the WRF model ARW core The simulation was initialized at 18 UTC on 28 August 2005 with 1 GFS data and then run for 48 hours on a double nested domain containing 4 5 km and 1 5 km horizontal grid spacing respectively Sub grid scale processes were parameterized using the Thompson et al 2008 mixed phase cloud microphysics scheme the Mellor Yamada Janjic planetary boundary layer scheme Mellor and Yamada 1982 and the Dudhia 1989 shortwave and Rapid Radiative Transfer Model longwave Mlawer et al 1997 radiation schemes The CIMSS forward radiative transfer modeling system was then used to compute simulated radiances for each GOES R Advanced Baseline Imager ABI spectral band The Successive Order of Interaction SOI model was used as the radiative transfer solver The system contains separate modules for the solar 1 7 and infrared 8 16 bands The infrared module computes gas optical depths using Compact OPTRAN in the CRTM while the solar module uses a band model lookup table Both modules compute cloud optical properties using lookup tables based on exact solutions Surface properties are taken from the CIMSS land surface IR emissivity product and the InfraRed Sea Surface Emissivity Model IRSSEM for the infrared module whereas MODIS land surface albedo products and an ocean surface reflectance model are used for the solar module Simulated GOES R ABI imagery in an AWIPS format below is also being generated to begin assembing Weather Event Simulator WES training material to prepare forecasters for the type of satellite imagery that will be available with GOES R Simulated ABI imagery in AWIPS A demonstration of what we hope will eventually be an RGB image display capability in AWIPS 2 is shown owith the MODIS false color image below The pink colored feature is a broad swath of snow and ice on the ground across much of Oklahoma on 30 January 2009 A deck of supercooled water droplet clouds can be seen in the upper right corner of the image bare ground shows up

    Original URL path: http://cimss.ssec.wisc.edu/goes/blog/cimss-satellite-proving-ground (2012-11-14)
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  • Contact us « CIMSS Satellite Blog
    Antarctic Arctic AVHRR Aviation AWIPS II Calibration Anomalies Cloud Top Cooling Convective Initiation Fire detection Fog detection General interpretation GOES sounder GOES 10 GOES 11 GOES 12 GOES 13 GOES 14 GOES 15 GOES R Google Earth Heavy rain flooding Historical Hydrology Lightning Marine weather McIDAS V Meteosat MODIS MTSAT Other Satellites POES Red Green Blue RGB images Satellite winds Severe convection Suomi NPP Synthetic satellite imagery Training Tropical cyclones VIIRS Volcanic activity Web Map Server What the heck is this Winter weather Other blogs of interest AccuWeather Blogs CIMSS GOES Gallery CIMSS TPARC Support CIRA GOES R Proving Ground Blog EUMETSAT Image Gallery Geographic Information Network of Alaska GOES R and JPSS National Centers Perspective GOES R Fog Product Examples GOES R Hazardous Weather Testbed METSUL blog NOAA NESDIS Operational Significant Event Imagery NSSTC Collaborative Weather Blog PREDICT Field Experiment Blog The GOES R Proving Ground at the Aviation Weather Testbed The Wide World of SPoRT UMBC U S Air Quality The Smog Blog US Severe Weather Blog VIIRS Imagery and Visualization Team Blog VISIT Meteorological Interpretation Weather Channel Blogs Weather Underground Blogs WGN Weather Center Blog Satellite imagery sources CIMSS GOES Derived Product Imagery CIMSS Tropical Cyclones Environmental Remote Sensing Center SSEC GINA University of Alaska Fairbanks NWS WFO scale satellite images eastern US NWS WFO scale satellite images western US SOSE Global Satellite Imagery SSEC AMRC Antarctic composite image animations SSEC AMRC Arctic composite image animation SSEC Geostationary Satellite Images SSEC Global IR Mosaic Images SSEC MODIS Direct Broadcast SSEC MODIS Today UW Madison AOS Satellite Images Archives November 2012 October 2012 September 2012 August 2012 July 2012 June 2012 May 2012 April 2012 March 2012 February 2012 January 2012 December 2011 November 2011 October 2011 September 2011 August 2011 July 2011 June 2011 May 2011 April

    Original URL path: http://cimss.ssec.wisc.edu/goes/blog/contact-us (2012-11-14)
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  • Mobile users « CIMSS Satellite Blog
    10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Categories Air quality Antarctic Arctic AVHRR Aviation AWIPS II Calibration Anomalies Cloud Top Cooling Convective Initiation Fire detection Fog detection General interpretation GOES sounder GOES 10 GOES 11 GOES 12 GOES 13 GOES 14 GOES 15 GOES R Google Earth Heavy rain flooding Historical Hydrology Lightning Marine weather McIDAS V Meteosat MODIS MTSAT Other Satellites POES Red Green Blue RGB images Satellite winds Severe convection Suomi NPP Synthetic satellite imagery Training Tropical cyclones VIIRS Volcanic activity Web Map Server What the heck is this Winter weather Other blogs of interest AccuWeather Blogs CIMSS GOES Gallery CIMSS TPARC Support CIRA GOES R Proving Ground Blog EUMETSAT Image Gallery Geographic Information Network of Alaska GOES R and JPSS National Centers Perspective GOES R Fog Product Examples GOES R Hazardous Weather Testbed METSUL blog NOAA NESDIS Operational Significant Event Imagery NSSTC Collaborative Weather Blog PREDICT Field Experiment Blog The GOES R Proving Ground at the Aviation Weather Testbed The Wide World of SPoRT UMBC U S Air Quality The Smog Blog US Severe Weather Blog VIIRS Imagery and Visualization Team Blog VISIT Meteorological Interpretation Weather Channel Blogs Weather Underground Blogs WGN Weather Center Blog Satellite imagery sources CIMSS GOES Derived Product Imagery CIMSS Tropical Cyclones Environmental Remote Sensing Center SSEC GINA University of Alaska Fairbanks NWS WFO scale satellite images eastern US NWS WFO scale satellite images western US SOSE Global Satellite Imagery SSEC AMRC Antarctic composite image animations SSEC AMRC Arctic composite image animation SSEC Geostationary Satellite Images SSEC Global IR Mosaic Images SSEC MODIS Direct Broadcast SSEC MODIS Today UW Madison AOS Satellite Images Archives November 2012 October 2012 September 2012 August 2012 July 2012 June 2012 May 2012 April

    Original URL path: http://cimss.ssec.wisc.edu/goes/blog/mobile-users (2012-11-14)
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  • POES/AVHRR in AWIPS « CIMSS Satellite Blog
    be combined to create Red Green Blue RGB images that might be helpful to differentiate between different cloud features or cloud layers The false color RGB image below uses POES AVHRR channels 1 2 and 4 as the Red Green and Blue components to show the clouds associated with a storm system over the eastern US on 26 January 2011 High level clouds appear brighter white while low level clouds take on more of a pale yellow shade vegetated land surfaces appear green while water appears blue POES AVHRR false color Red Green Blue RGB image AVHRR Fog Product A comparison of the 1 km resolution POES AVHRR fog stratus product with the corresponding 4 km resolution GOES 13 fog stratus product below demonstrates the advantage of improved spatial resolution to aid in the detection of small scale river valley fog features across the central Appalachian Mountains region on 08 October 2010 POES AVHRR fog stratus product GOES 13 fog stratus product AVHRR Sea Surface Temperature Product AVHRR Sea Surface Temperature product below showing that an oil slick resulting from the Deepwater Horizon oil rig fire and collapse was exhibiting SST values that were several degrees cooler green color enhancement than the surrounding waters in the northern Gulf of Mexico on 29 April 2010 POES AVHRR Sea Surface Temperature product AVHRR Cloud Type Product The POES AVHRR Cloud Type product can be used to discriminate between water droplet clouds supercooled water droplet clouds opaque ice crystal clouds cirrus clouds or clouds that are likely overshooting the tropopause An example of the Cloud Type product below is shown for a strong storm off the coast of the northeastern US which produced heavy rain heavy snow and high winds across parts of that region on 08 November 2010 POES AVHRR Cloud Type product AVHRR Cloud Top Temperature Product An example of the POES AVHRR Cloud Top Temperature product is shown below for the same strong storm off the coast of the northeastern US POES AVHRR Cloud Top Temperature product AVHRR Cloud Height Product An example of the POES AVHRR Cloud Top Height product is shown below for the same strong storm off the coast of the northeastern US POES AVHRR Cloud Height product AVHRR Cloud Optical Depth Product A comparison of 1 km resolution POES AVHRR Cloud Optical Depth products at 18 41 and 19 18 UTC below showed that the primary convergence band along the eastern side of a cyclonic circulation feature over Lake Superior exhibited significantly higher cloud optical depth values blue to cyan color enhancement This feature was responsible for later producing several inches of lake effect snow along the Minnesota north shore of Lake Superior on 07 March 2011 POES AVHRR Cloud Optical Depth product AVHRR Cloud Particle Effective Radius Product Numerous ship condensation tracks could be seen in both the POES AVHRR visible image and the POES AVHRR Cloud Particle Effective Radius product below off the coast of California on 31 March 2011 The Cloud particle Effective

    Original URL path: http://cimss.ssec.wisc.edu/goes/blog/poesavhrr-in-awips (2012-11-14)
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  • SatePedia « CIMSS Satellite Blog
    planned for a launch in 2014 will have 16 channels MODIS MOD erate resolution I maging S pectroradiometer a 36 channel instrument on the NASA polar orbiting Terra and Aqua satellites CIMSS has a MODIS direct broadcast ground station which also provides imagery for the SSEC MODIS Today site Some of the MODIS channels and products are also prepared for display in AWIPS NOAA AVHRR The National Oceanic and Atmospheric Administration NOAA series of polar orbiting satellites have an Advanced Very High Resolution Radiometer AVHRR instrument with 5 channels similar to the 5 channels which are available on the GOES imager There are plans to try and add 3 of the 5 AVHRR channels visible 3 7µm shortwave IR and 10 8µm IR window to AWIPS in the near future Sounder a 19 channel instrument on the GOES series of satellites Compared to the 5 channel imager instrument the sounder scans more slowly one image per hour and has a larger nominal Field Of View FOV of 10 km at nadir GOES Sounder channel data are used to create operational derived product images DPI such as total precipitable water PW lifted index LI CAPE cloud top pressure skin temperature and total column ozone True color image a 3 channel RGB composite that uses MODIS channels 1 0 65 µm 4 0 55 µm and 3 0 47 µm for the Red Blue and Green components of the image The resulting image is then corrected for reflectance which accounts for molecular scattering and for absorption by ozone oxygen and water vapor Daily MODIS true color images are made available in near real time on the SSEC MODIS Direct Broadcast and SSEC MODIS Today sites Warm trench an IR signature that consists of a ring or trench of warmer cloud top brightness temperatures that surrounds a region of cold cloud top temperatures associated with overshooting tops The significance of this particular IR storm top signature is still being explored Water vapor channel a satellite channel in the 6 to 7 µm wavelength range that is sensitive to radiation that is absorbed and re emitted by water vapor located in the middle to upper troposphere Water vapor images provide valuable information about flow patterns and dynamics in the middle troposphere even in cloud free regions Weighting function a plot that describes the layer of the atmosphere from which radiation is coming from that is being measured by a particular satellite channel The plots represent the change in transmittance with respect to pressure or height You can interactively explore GOES imager and sounder weighting functions for rawinsonde locations in the US using the CIMSS GOES Realtime Weighting Functions site Posted in No Comments Webmaster Follow us on Search for Pages About this site CIMSS Satellite Proving Ground Contact us Mobile users POES AVHRR in AWIPS SatePedia Suomi NPP JPSS Proving Ground VISIT SHyMet Training Topics November 2012 M T W T F S S Oct 1 2 3 4 5 6 7 8 9

    Original URL path: http://cimss.ssec.wisc.edu/goes/blog/satepedia (2012-11-14)
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