Title :
Estimation of path-average rain drop size distribution using the NASA/TRMM microwave link
Author :
Rincon, Rafael F. ; Lang, Roger ; Meneghini, Robert ; Bidwell, Steven ; Tokay, Ali
Author_Institution :
George Washington Univ., Washington, DC, USA
Abstract :
Microwave attenuation measurements at 25 GHz, and 38 GHz on the NASA/TRMM 2.3-km microwave link permit the application of a dual-wavelength inversion technique to estimate parameters of a path-average gamma drop size distribution (DSD). Three Joss-Waldvogel disdrometers provide DSD measurements under the link path permitting direct comparison with the estimated DSD. Additionally, the estimated and measured DSDs are used to compute path-average rain rates and rainfall accumulation. These results are compared to path-average measurements from the network of optical and tipping bucket rain gauges
Keywords :
atmospheric techniques; drops; inverse problems; microwave propagation; millimetre wave propagation; rain; tropospheric electromagnetic wave propagation; 25 GHz; 38 GHz; dual-wavelength inversion technique; microwave attenuation measurements; microwave link; path-average gamma drop size distribution; path-average rain rates; rainfall accumulation; Frequency; NASA; Optical attenuators; Optical fiber networks; Optical network units; Optical receivers; Optical sensors; Optical transmitters; Rain; Wavelength measurement;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.976739
