The number of single layers
1.  in the nadir period
2.  with 233<layer top temp<273 K
           or
2.  with 253<layer top temp<273 K
3.  with 0<layer thickness<5 km (thin)
4.  over the ocean
5.  layer_top le 5km and 0<layer_base <2km (close to the surface)
6.  values for layer integrated attenuated backscatter and layer depolarization ratio exist
7.  the layer attenuates the lidar
8.  layers in latitude range 40s_to_65s

3 phases refers to the original Hu et all phase regions
5 phases refers to the new 5 phase regions that include a mixed-hoi and mixed-roi
region on the sides of the narrower water region.

                          3 phases 233            5 phases 233            3 phases 253            5 phases 253

               0-1km   996570  0.3151                                     963640  0.3706
              precip   134733  0.1352                                     130168  0.1351
         precip_hoi3        2   0.0000            -1  -1.0000             1   0.0000            -1  -1.0000
         precip_hoi5       -1  -1.0000             2   0.0000            -1  -1.0000             1   0.0000
        precip_mhoi5       -1  -1.0000             8   0.0001            -1  -1.0000             8   0.0001
         precip_roi3       16   0.0001            -1  -1.0000            16   0.0001            -1  -1.0000
         precip_roi5       -1  -1.0000            16   0.0001            -1  -1.0000            16   0.0001
        precip_mroi5       -1  -1.0000           167   0.0012            -1  -1.0000           133   0.0010
          precip_ice       18   0.0001           193   0.0014            17   0.0001           158   0.0012
        precip_water   134715   0.9999        134540   0.9986        130151   0.9999        130010   0.9988
 
           nonprecip   861837  0.8648                                     833472  0.8649
      nonprecip_hoi3       14   0.0000            -1  -1.0000            14   0.0000            -1  -1.0000
      nonprecip_hoi5       -1  -1.0000            14   0.0000            -1  -1.0000            14   0.0000
     nonprecip_mhoi5       -1  -1.0000            56   0.0001            -1  -1.0000            56   0.0001
      nonprecip_roi3      149   0.0002            -1  -1.0000           149   0.0002            -1  -1.0000
      nonprecip_roi5       -1  -1.0000           149   0.0002            -1  -1.0000           149   0.0002
     nonprecip_mroi5       -1  -1.0000          4497   0.0052            -1  -1.0000          4188   0.0050
       nonprecip_ice      163   0.0002          4716   0.0055           163   0.0002          4407   0.0053
     nonprecip_water   861674   0.9998        857121   0.9945        833309   0.9998        829065   0.9947

               1-3km  1733050  0.5479                                    1494113  0.5746
              precip  1260819  0.7275                                    1084438  0.7258
         precip_hoi3    33567   0.0266            -1  -1.0000         22152   0.0204            -1  -1.0000
         precip_hoi5       -1  -1.0000         33567   0.0266            -1  -1.0000         22152   0.0204
        precip_mhoi5       -1  -1.0000         18852   0.0150            -1  -1.0000         13740   0.0127
         precip_roi3     4023   0.0032            -1  -1.0000          1281   0.0012            -1  -1.0000
         precip_roi5       -1  -1.0000          4023   0.0032            -1  -1.0000          1281   0.0012
        precip_mroi5       -1  -1.0000         13720   0.0109            -1  -1.0000          8604   0.0079
          precip_ice    37590   0.0298         70162   0.0556         23433   0.0216         45777   0.0422
        precip_water  1223229   0.9702       1190657   0.9444       1061005   0.9784       1038661   0.9578

           nonprecip   472231  0.2725                                     409675  0.2742
      nonprecip_hoi3      368   0.0008            -1  -1.0000           284   0.0007            -1  -1.0000
      nonprecip_hoi5       -1  -1.0000           368   0.0008            -1  -1.0000           284   0.0007
     nonprecip_mhoi5       -1  -1.0000           633   0.0013            -1  -1.0000           529   0.0013
      nonprecip_roi3       58   0.0001            -1  -1.0000            49   0.0001            -1  -1.0000
      nonprecip_roi5       -1  -1.0000            58   0.0001            -1  -1.0000            49   0.0001
     nonprecip_mroi5       -1  -1.0000          1216   0.0026            -1  -1.0000           732   0.0018
       nonprecip_ice      426   0.0009          2275   0.0048           333   0.0008          1594   0.0056
     nonprecip_water   471805   0.9991        469956   0.9952        409342   0.9992        408081   0.9961

               3-5km   433450  0.1370                                     142388  0.0548
              precip   421035  0.9714                                     138669  0.9739
         precip_hoi3    51848   0.1231            -1  -1.0000         11685   0.0843            -1  -1.0000
         precip_hoi5       -1  -1.0000         51848   0.1231            -1  -1.0000         11685   0.0843
        precip_mhoi5       -1  -1.0000         20681   0.0491            -1  -1.0000          6158   0.0444
         precip_roi3    10400   0.0247            -1  -1.0000           672   0.0048            -1  -1.0000
         precip_roi5       -1  -1.0000         10400   0.0247            -1  -1.0000           672   0.0048
        precip_mroi5       -1  -1.0000         14484   0.0344            -1  -1.0000          2442   0.0176
          precip_ice    62248   0.1478         97413   0.2314         12357   0.0891         20957   0.1511
        precip_water   358787   0.8522        323622   0.7686        126312   0.9109        117712   0.8489

           nonprecip    12415  0.0286                                       3719  0.0261
      nonprecip_hoi3      239   0.0193            -1  -1.0000            68   0.0183            -1  -1.0000
      nonprecip_hoi5       -1  -1.0000           239   0.0193            -1  -1.0000            68   0.0183
     nonprecip_mhoi5       -1  -1.0000           297   0.0239            -1  -1.0000            86   0.0231
      nonprecip_roi3        6   0.0005            -1  -1.0000             0   0.0000            -1  -1.0000
      nonprecip_roi5       -1  -1.0000             6   0.0005            -1  -1.0000             0   0.0000
     nonprecip_mroi5       -1  -1.0000            51   0.0041            -1  -1.0000             8   0.0022
       nonprecip_ice      245   0.0197           593   0.0478            68   0.0183           162   0.0436
     nonprecip_water    12170   0.9803         11822   0.9522          3651   0.9817          3557   0.9564