METHODS OF DETERMINING THE LIQUID WATER CONTENT OF A CLOUD

    公开(公告)号:CA2780555A1

    公开(公告)日:2013-04-25

    申请号:CA2780555

    申请日:2012-06-21

    Abstract: In one aspect, methods of determining a size distribution of water droplets in a cloud are described herein. In some embodiments, a method of determining a size distribution of water droplets in a cloud comprises sampling a depth of a cloud with a beam of electromagnetic radiation, measuring echo intensities of the electromagnetic radiation returned from the cloud with a detector, determining a measured optical extinction coefficient from the measured echo intensities, determining a measured backscatter coefficient from the measured echo intensities, determining a lidar ratio from the measured optical extinction coefficient and the measured backscatter coefficient, determining from the lidar ratio a value pair comprising a shape parameter (µ) and median volume diameter (D MVD) of the water droplets, and determining a size distribution of the water droplets using the value pair (µ, D MVD).

    Methods of determining water droplet size distributions of clouds

    公开(公告)号:AU2012203742A1

    公开(公告)日:2013-05-09

    申请号:AU2012203742

    申请日:2012-06-27

    Abstract: In one aspect, methods of determining a size distribution of water droplets in a cloud are described herein. In some embodiments, a method of determining a size 5 distribution of water droplets in a cloud comprises sampling a depth of the cloud with a beam of electromagnetic radiation, measuring a scattering signal of the electromagnetic radiation returned from the cloud over a range of field of view angles to provide a measured scattering curve [proa,(O)], removing a portion of the measured scattering curve, replacing the removed portion with an extrapolation of the remaining measured scattering 10 curve to provide an estimated scattering curve, and determining a first estimate droplet size distribution [nt1)(D)] from the estimated scattering curve. r --- - gO) I ) 0) E -S* ' 0 uE E*1 = COD C) 0 =C ?=, ar :C 0 CD cEO) wa) a) M C E0 0 U =)~~~~ - )m II) 0i E >cJ - E) - n a) Z (0 (O!a)' a) )~ CW 0 J to 0- cu, :ZL a)U E~a ixL ) 0 6c' a) Ea E. 10 U) U n 0' u )c 3( 0) .0 C 0 0 0 M Ot cli ) m * = > E i0)0 33 1 ? E E L) -p- -c- .- )~ 0_ 00 -M c 0L :3 z 0 0~ Q) U ' L)Cl)0 0 o c'D -------

    5.
    发明专利
    未知

    公开(公告)号:BR102012019441A2

    公开(公告)日:2013-11-05

    申请号:BR102012019441

    申请日:2012-07-25

    Abstract: Methods of determining a size distribution of water droplets in a cloud are described herein. In some embodiments, a method of determining a size distribution of water droplets in a cloud comprises sampling a depth of the cloud with a beam of electromagnetic radiation, measuring a scattering signal of the electromagnetic radiation returned from the cloud over a range of field of view angles to provide a measured scattering curve [ p total (¸)], removing a portion of the measured scattering curve, replacing the removed portion with an extrapolation of the remaining measured scattering curve to provide an estimated scattering curve, and determining a first estimate droplet size distribution [ n (1) (D)] from the estimated scattering curve.

    Methods of determining the liquid water content of a cloud

    公开(公告)号:AU2012203739A1

    公开(公告)日:2013-05-16

    申请号:AU2012203739

    申请日:2012-06-27

    Abstract: In one aspect, methods of determining a size distribution of water droplets in a cloud are described herein. In some embodiments, a method of determining a size distribution of water droplets in a cloud comprises sampling a depth of a cloud with a 5 beam of electromagnetic radiation, measuring echo intensities of the electromagnetic radiation returned from the cloud with a detector, determining a measured optical extinction coefficient from the measured echo intensities, determining a measured backscatter coefficient from the measured echo intensities, determining a lidar ratio from the measured optical extinction coefficient and the measured backscatter coefficient, 10 determining from the lidar ratio a value pair comprising a shape parameter (p) and median volume diameter (DMVD) of the water droplets, and determining a size distribution of the water droplets using the value pair (pt, DMVD). Qa) U) 0 ) c E o (D Z000 U)a C () or :t-- > ) 0 ) C C ) a) ~ a) Lcuf)l E 0 E E 0 a 0aa C) "0 Z0( E: E *Q 0-0 a)cu -0 0- C)- 0 0 a) 0a) C) I o- VZ 0 * 0M C U) 0,2)U)U aa a aD aa E m E E E E ff af C) a) a

    METHODS OF DETERMINING WATER DROPLET SIZE DISTRIBUTIONS OF CLOUDS

    公开(公告)号:CA2780525C

    公开(公告)日:2020-09-22

    申请号:CA2780525

    申请日:2012-06-21

    Abstract: In one aspect, methods of determining a size distribution of water droplets in a cloud are described herein. In some embodiments, a method of determining a size distribution of water droplets in a cloud comprises sampling a depth of the cloud with a beam of electromagnetic radiation, measuring a scattering signal of the electromagnetic radiation returned from the cloud over a range of field of view angles to provide a measured scattering curve [P total(.theta.)], removing a portion of the measured scattering curve, replacing the removed portion with an extrapolation of the remaining measured scattering curve to provide an estimated scattering curve, and determining a first estimate droplet size distribution [n(1)(D)] from the estimated scattering curve.

    METHODS OF DETERMINING WATER DROPLET SIZE DISTRIBUTIONS OF CLOUDS

    公开(公告)号:CA2780525A1

    公开(公告)日:2013-04-25

    申请号:CA2780525

    申请日:2012-06-21

    Abstract: In one aspect, methods of determining a size distribution of water droplets in a cloud are described herein. In some embodiments, a method of determining a size distribution of water droplets in a cloud comprises sampling a depth of the cloud with a beam of electromagnetic radiation, measuring a scattering signal of the electromagnetic radiation returned from the cloud over a range of field of view angles to provide a measured scattering curve [P total(.theta.)], removing a portion of the measured scattering curve, replacing the removed portion with an extrapolation of the remaining measured scattering curve to provide an estimated scattering curve, and determining a first estimate droplet size distribution [n(1)(D)] from the estimated scattering curve.

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