Syowa MPL

Observed direction:
2000.1-2007.1  --elv. angle=45 deg.
2007.2-        --elv. angle=90 deg.

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(1) Folder: sig
Vertical profile of MPL relative backscatter (RB)
Monthly file of 18-minute interval

Details
1. File names: sig/sig_YYYYMM.txt

2. Data format in files

 day(1-31)+time(0-1)UT,
 altitude (km, a.g.l),
 LOG(RB (const. x photon count x km^2/uJ/us))

ex) Time: 09:30UT => 9/24+30/60/24 = .39583

ex) 2019.6.3 12:00UT => 3.50000
"sig_201906.txt"
        3.50000    3.00000E-02    0.00000E+00
        3.50000    6.00000E-02    5.17719E-08
        3.50000    9.00000E-02    7.73807E-03
        3.50000    1.20000E-01    4.77288E-03
        3.50000    1.50000E-01    6.95110E-03
        3.50000    1.80000E-01    9.42241E-03
        3.50000    2.10000E-01    1.28309E-02
        3.50000    2.40000E-01    1.66526E-02
        3.50000    2.70000E-01    2.07132E-02
        3.50000    3.00000E-01    2.44928E-02
        3.50000    3.30000E-01    2.90855E-02
        3.50000    3.60000E-01    3.47113E-02
        3.50000    3.90000E-01    4.03738E-02
        3.50000    4.20000E-01    4.60864E-02
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(2) Folder: cbh
Cloud base height (CBH)
Monthly file of 3-minute interval

Details
1. File names: sig/cbh_YYYYMM.txt

2. Data format in files

  day(1-31)+time(0-1)UT
  Time(0-24)UT
  CBH1 - calculated by the MPL software (km, a.g.l.)
  CBH2 - recalculated from raw signal (km, a.g.l.)

ex) 2019.03
cbh_202005.txt
   1.00000    0.0000     1.543     1.530
   1.00208    0.0500     1.573     1.530
   1.00417    0.1000     1.543     1.530
   1.00625    0.1500     1.543     1.530
   1.00833    0.2000     1.543     1.530
   1.01042    0.2500     1.543     1.530
   1.01250    0.3000    -0.500    -0.500
   1.01458    0.3500    -0.500    -0.500
   1.01667    0.4000    -0.500    -0.500

  31.98541   23.6499     1.064     0.750
  31.98750   23.6999     1.424     0.690
  31.98958   23.7499     1.064     0.720
  31.99166   23.7999     1.004     0.990
  31.99375   23.8499     0.674     0.990
  31.99583   23.8999     0.674     0.990
  31.99791   23.9499     0.674     0.960

* CBH=-0.500 : no cloud

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(3) Folder: fig
Quick look images of MPL relative backscatter and cloud base height
Daily file
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