5 cm (C-band) SMART-R's
(Shared Mobile Atmospheric Research and Teaching Radar)


030905-1b.jpg (9803 bytes)     030905-2b.jpg (10056 bytes)     030905-4b.jpg (10184 bytes)      Images of SR-1 housed at the NSSL garage.  It's a 5cm Doppler radar with an 8 foot diameter dish mounted on a large truck.  There are two in existence, SR-1 and SR-2.  They are used to study convective weather, precipitation physics, hurricanes, etc.
060814-8b.jpg (39100 bytes)     030905-3b.jpg (10695 bytes)     Image of both the SMART-R's together.  Both radars are a collaborative research program with the National Severe Storms Laboratory, University of Oklahoma, Texas Tech, and Texas A&M University.
030914-1b.jpg (6354 bytes)     030914-2b.jpg (9002 bytes)     030914-3b.jpg (9367 bytes)     Both SMART-R's get ready as they head for the east coast in pursuit of hurricane Isabel.
030914-4b.jpg (7676 bytes)     030914-6b.jpg (8227 bytes)     Images of the pedestal and antenna.
030914-5b.jpg (9289 bytes)     030914-9b.jpg (8582 bytes)     030914-10b.jpg (8470 bytes)     Images of the SMART-R's including Dr. Biggerstaff, our radar expert at the University of Oklahoma and also one of the lead investigators of the SMART-R Radar Program.
031014-5b.jpg (35907 bytes)     031014-1b.jpg (30524 bytes)     031014-2b.jpg (36155 bytes)     031014-3b.jpg (34720 bytes)     Images of SR-1 on display outside of the meteorology department at the University of Oklahoma.
040402-1b.jpg (32397 bytes)     040402-2b.jpg (38888 bytes)     040402-3b.jpg (37769 bytes)     Images of the transmitter / receiver for SR-2.
040402-4b.jpg (32323 bytes)     040402-5b.jpg (29607 bytes)     SR-2's pedestal and inside the cab prior to departure for our radar lab.
040402-6b.jpg (27303 bytes)     040402-7b.jpg (32488 bytes)     040402-8b.jpg (30966 bytes)     Dr. Biggerstaff explained the radars in great detail and gave us scenarios of possible weather events which we applied to the radar.   There are many possible settings to run the radar which we tailored to our given scenario prior to transmitting.  It was an amazing learning experience!

3 cm (X-band) NO-XP
(NSSL-OU X-band Polarimetric Radar)
060814-1b.jpg (39458 bytes)      060814-2b.jpg (43375 bytes)      060814-3b.jpg (45181 bytes)      Pedestal and antenna for the new mobile X-band polarimetric radar.
060814-4b.jpg (37009 bytes)      060814-5b.jpg (40314 bytes)      060814-6b.jpg (47645 bytes)      060814-7b.jpg (40133 bytes)      Various images of the pedestal, both inside and out.

3 cm (X-band) Doppler On Wheels


040524-90b.jpg (30813 bytes)     040524-91b.jpg (30142 bytes)     050522-3b.jpg (42874 bytes)      The DOW (Doppler On Wheels) program is owned by the Center for Severe Weather Research (CSWR) located in Boulder, CO.  Many modifications and upgrades have been performed by NCAR (National Center for Atmospheric Research).  The Doppler on Wheels Project is ran by Josh Wurman, now director of CSWR.  Both DOW's continue to explore rare, short-lived, and small scale phenomena.   Research ranges from supercell/tornadogenesis research in the ROTATE Project to Homeland Security Research.

050513-7b.jpg (33501 bytes)      050513-8b.jpg (27550 bytes)      DOW 3 in action as it scans an HP supercell near Munday, Texas, on May 13, 2005.

050522-2b.jpg (39033 bytes)      050522-9b.jpg (45737 bytes)      050522-6b.jpg (31071 bytes)      050522-7b.jpg (30894 bytes)      Various images of the Rapid DOW, supported by the National Science Foundation.  Notice the mascot they have on their hood.

050522-4b.jpg (42531 bytes)      050522-5b.jpg (45451 bytes)      050522-8b.jpg (36040 bytes)      050609-34b.jpg (20537 bytes)      More images of the RAPID DOW antenna.  Third image shows some of the computing systems, the blue enclosure houses the transmitter.  Last image shows the RAPID DOW scanning a weak tornado north of Hill City, Kansas.

980000-1b.jpg (30722 bytes)     980000-2b.jpg (32791 bytes)     This is "DOW 2" awaiting hurricane intercepts in fall of 1998.

000000-1b.jpg (38618 bytes)     000000-2b.jpg (40530 bytes)     000000-7b.jpg (35307 bytes)     The following are pictures of "DOW 3" parked in front of Sarkey's Energy Center where the Meteorology Department is at OU.  At that time, one or two of the DOW's was parked there every Friday for a radar meteorology course that was taught by Josh Wurman.  DOW 3 has a special portable tower consisting of 3 wind measuring devices.  This tower raises 10 meters high to accurately measure boundary layer surface winds in hurricanes.

UMass Radars
3cm (x-band)  &  3 mm (w-band)


010000-3b.jpg (8999 bytes)     030000-3b.JPG (11150 bytes)     This is the Univ. of Massachusetts mobile 3cm radar truck.  It debuted the spring of 2001 and is now dual-polarized.  It was paid by the research money gained from the 3 mm polametric Doppler radar.  Bluestein continues to take these radars out ever year in pursuit of tornadic storms.

030000-1b.JPG (9637 bytes)     This is a picture of the back seat.   A few computer components for data processing and acquisition.

050514-6b.jpg (46326 bytes)     050514-7b.jpg (39988 bytes)     050514-5b.jpg (41417 bytes)     The UMASS 3cm radar had an upgrade in 2005.  Dr. Biggerstaff gave a brief explanation as how spaced antennas work.  "Spaced antennas use two flat plates oriented at an angle to receive returns with different phases to try and resolve the cross-beam wind component."

050514-4b.jpg (38548 bytes)     050607-31b.jpg (29997 bytes)     Image of the computing inside the 3cm radar as well as a shot of it in action.

020000-18b.jpg (38130 bytes)      020000-19b.jpg (36234 bytes)      020000-20b.jpg (31140 bytes)      The University of Massachusetts tornado radar.


050516-8b.jpg (31306 bytes)     050516-9b.jpg (26070 bytes)     This is a TDWR radar at north base near NSSL.  Images were taken during sunset.



980000-3b.jpg (37090 bytes)     980000-4b.jpg (34359 bytes)     980000-5b.jpg (31633 bytes)      This is "NSSL 1".  Picture taken at the NSSL's Joint Mobile Research Facility (JMRF).  This van has the most equipment I have ever seen on a moving vehicle.  It no longer exits, a new van "NSSL 5" took its place.   Picture taken July, 1998.

990000-3b.jpg (34474 bytes)     990000-9b.jpg (16666 bytes)     990000-10b.jpg (21819 bytes)     This is "NSSL 4", used in many projects including Project VORTEX and Project IPEX.  Inside, is the FC's station with  laptops, radios, and sounding equipment.

000000-5b.jpg (19114 bytes)     000000-6b.jpg (22526 bytes)      Here is the mobile research vehicle, NSSL 5.  This was used in Project STEPS during spring of 2000 and Project IPEX during the winter of 2000.

030905-6b.jpg (9213 bytes)      030905-5b.jpg (9705 bytes)      Images of the NSSL mobile laboratory, "NSSL 6".  It was built in 2002-2003 and will be used for mobile radiosonde launches.

060814-9b.jpg (41057 bytes)      060814-10b.jpg (41906 bytes)      Images of the development phase of "NSSL 7" mobile laboratory.  Images were taken August 14, 2006.



050516-7b.jpg (40522 bytes)      The mobile mesonet as of October, 2004.  One of the upgrades includes a fast response thermistor mounted in the front of the rack below the pressure port.

990000-4b.jpg (26744 bytes)     010000-10b.jpg (37867 bytes)     The picture on the left shows a close-up of the variety of instruments on the mobile mesonets in 1999.  On the right, a close-up of what's inside those big white boxes.  This one isn't finished yet, but it gives you an idea of the complexity of wiring those things.

000000-4b.jpg (30182 bytes)      In late spring of  2000, these six mobile mesonets were used for Project STEPS.  Storms were very scarce on the high plains during this time, so they came home to Norman for a while.

ihop-1b.jpg (24205 bytes)     ihop-2b.jpg (20909 bytes)     ihop-3b.jpg (18853 bytes)     Images of the ground instruments for Project IHOP, 2002.
More IHOP images and the right hand picture showing one of the SMART-R Mobile Radars.

030905-7b.jpg (10385 bytes)     Wiring setup for a mobile mesonet probe at the NSSL garage.


030905-9b.jpg (6338 bytes)      The Norman, Oklahoma Mesonet site located at NSSL.  The Norman site has many additional instruments that are not found on regular mesonet sites.

030905-11b.jpg (6478 bytes)      030905-10b.jpg (6386 bytes)      030905-20b.jpg (6618 bytes)      030905-19b.jpg (6279 bytes)      These images show a Kipp & Zonen Net Radiometer mounted at about 1.5 meters.  It consists of four sensors which measures the energy balance between incoming short-wave and long-wave IR radiation versus surface-reflected short-wave and outgoing long-wave IR radiation.

030905-12b.jpg (7547 bytes)      This is a LI-COR Silicon Pyranometer which measures solar radiation using a silicon photovoltaic detector.

030905-13b.jpg (6389 bytes)      This is an Apogee IR Thermocouple Transducer which measures sfc skin temperature.

030905-14b.jpg (5512 bytes)      This is an RM Young cup anemometer which measures wind speed only.  These were mounted at two and nine meters.

030905-16b.jpg (11823 bytes)      030905-15b.jpg (12924 bytes)      This is a tipping bucket rain gauge from Met One Instruments.   Surrounding the instrument is a wind screen which is an effort to reduce errors from localized turbulence induced by wind.

030905-17b.jpg (8301 bytes)      030905-18b.jpg (4798 bytes)      At 1.5 meters there is a thermistor (left image) that measures the temperature with a 3.6 second time constant.  Also, a Vaisala temperature / RH sensor (right image) using a PRT for temperature and a capacitive RH chip for RH measurements.  Both are mounted in a self-aspirated 10-plate gill  radiation shield made by RM Young.  This minimizes solar radiation errors when winds are generally above 2 m/s.

030905-21b.jpg (6046 bytes)      Campbell Scientific sonic anemometer which allows measurement of 3D wind and temperature.  Below that is a Krypton Hygrometer which is a highly sensitive hygrometer that measures rapid fluctuations of water vapor.

030905-22b.jpg (5663 bytes)      030905-23b.jpg (4375 bytes)     At 10 meters the RM Young propeller anemometer measures wind speed and direction.




040810-19b.jpg (28700 bytes)     040810-20b.jpg (22232 bytes)     An ASOS site located south of Springfield, CO.

040810-22b.jpg (30650 bytes)     040810-26b.jpg (35508 bytes)     040810-25b.jpg (25106 bytes)     The typical instrument suite for an ASOS site, aspirated radiation shield housing the temperature and dewpoint sensor as well as other instruments.

040810-24b.jpg (38532 bytes)     040810-23b.jpg (34840 bytes)     A heated tipping bucket rain gauge with wind shield.  Obviously a heated rain gauge in Colorado is a good idea.



040608-12b.jpg (25617 bytes)      Pictured is part of the NCAR Marshall Field Site, where many instruments are tested out in the middle of nowhere.

040608-6b.jpg (30027 bytes)      040608-7b.jpg (33805 bytes)     040608-8b.jpg (41800 bytes)     040608-9b.jpg (39656 bytes)      040608-10b.jpg (33919 bytes)     040608-11b.jpg (35263 bytes)     Many instruments are present including some of the newest technology.  Above are sonic anemometers and various ways of measuring precipitation.

040608-13b.jpg (38620 bytes)      040608-14b.jpg (36546 bytes)     040608-15b.jpg (38544 bytes)     040608-16b.jpg (42155 bytes)      040608-17b.jpg (32082 bytes)     At NCAR's Research Aviation Facility located at Colorado's Jefferson County Airport, a C-130Q Hercules Turboprop is housed in a hanger which studies cloud microphysics.

040608-18b.jpg (36960 bytes)     040608-4b.jpg (38632 bytes)      040608-5b.jpg (32673 bytes)     At NCAR ATD, many labs responsible for maintaining and fabricating the various instruments that NCAR scientists use.  Pictured from right to left are a dropsonde, the NCAR ELDORA radar hardware getting an upgrade, and outside, various mobile instrument platforms.

Last Update: 06/10/08