TY - GEN
T1 - High resolution dual-polarization radar observation of tornados
T2 - 2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005
AU - Junyent, Francesc
AU - Frasier, S.
AU - McLaughlin, D. J.
AU - Chandrasekar, V.
AU - Bluestein, H.
AU - French, M.
PY - 2005
Y1 - 2005
N2 - The recently established Engineering Research Center for Collaborative Adaptive Sensing of the atmosphere, integrated by the University of Massachusetts at Amherst, Colorado State University, University of Oklahoma and University of Puerto-Rico at Mayagüez, will be deploying a test-bed consisting of a network of low-power, short-range, X-Band, polarimetric, Doppler radars in central Oklahoma. One of the principal goals of this network of radars, known as NetRad, is to improve the detection of tornadoes and locate accurately their centroid position. This paper presents data from the University of Massachusetts XPol radar, an X-Band, mobile unit with very similar characteristics to those of a NetRad unit, obtained from two tornadoes probed at close range on 12 May 2004 in Kansas, and a third tornado probed at further range on 29 May 2004. Reflectivity, differential reflectivity, Doppler velocity, Doppler spectrum width, differential phase and cross correlation coefficient magnitude are obtained, with the polarimetric fields showing evidence of a distinct tornado signature, dependent on the tornado strength, associated with the post-touchdown debris field. The high temporal and spatial resolution data from the tornadoes are used to simulate the radar echo characteristics at various ranges, to explore the characteristic features that will be used to detect and locate a tornado or track it. Special emphasis is placed on dual-polarization radar signature characteristics
AB - The recently established Engineering Research Center for Collaborative Adaptive Sensing of the atmosphere, integrated by the University of Massachusetts at Amherst, Colorado State University, University of Oklahoma and University of Puerto-Rico at Mayagüez, will be deploying a test-bed consisting of a network of low-power, short-range, X-Band, polarimetric, Doppler radars in central Oklahoma. One of the principal goals of this network of radars, known as NetRad, is to improve the detection of tornadoes and locate accurately their centroid position. This paper presents data from the University of Massachusetts XPol radar, an X-Band, mobile unit with very similar characteristics to those of a NetRad unit, obtained from two tornadoes probed at close range on 12 May 2004 in Kansas, and a third tornado probed at further range on 29 May 2004. Reflectivity, differential reflectivity, Doppler velocity, Doppler spectrum width, differential phase and cross correlation coefficient magnitude are obtained, with the polarimetric fields showing evidence of a distinct tornado signature, dependent on the tornado strength, associated with the post-touchdown debris field. The high temporal and spatial resolution data from the tornadoes are used to simulate the radar echo characteristics at various ranges, to explore the characteristic features that will be used to detect and locate a tornado or track it. Special emphasis is placed on dual-polarization radar signature characteristics
UR - https://www.scopus.com/pages/publications/33745698982
U2 - 10.1109/IGARSS.2005.1526414
DO - 10.1109/IGARSS.2005.1526414
M3 - Conference contribution
AN - SCOPUS:33745698982
SN - 0780390504
SN - 9780780390508
T3 - International Geoscience and Remote Sensing Symposium (IGARSS)
SP - 2034
EP - 2037
BT - 25th Anniversary IGARSS 2005
Y2 - 25 July 2005 through 29 July 2005
ER -