netcdf hope_lim_rlmwr00_l4_humr_1_3471622878265381010 { dimensions: time = 288 ; height = 111 ; nv = 2 ; variables: double time(time) ; time:units = "seconds since 1970-01-01 00:00:00 UTC" ; time:standard_name = "time" ; time:long_name = "time" ; time:bounds = "time_bnds" ; double time_bnds(time, nv) ; float lat ; lat:units = "degree_north" ; lat:standard_name = "latitude" ; lat:long_name = "latitude" ; float lon ; lon:units = "degree_east" ; lon:standard_name = "longitude" ; lon:long_name = "longitude" ; float zsl ; zsl:units = "m" ; zsl:standard_name = "altitude" ; zsl:long_name = "altitude above mean sea level" ; float height(height) ; height:units = "m" ; height:standard_name = "height" ; height:long_name = "height above ground level" ; height:bounds = "height_bnds" ; float height_bnds(height, nv) ; double humr(time, height) ; humr:units = "1" ; humr:standard_name = "humidity_mixing_ratio" ; humr:long_name = "humidity mixing ratio" ; humr:_FillValue = -999. ; humr:valid_min = 0. ; humr:valid_max = 0.0500000007450581 ; humr:comment = "Two-step algorithm combining Raman lidar humidity-mixing ratio and microwave radiometer brightness temperature to retrieve humidity-mixing-ratio during all non-precipitating conditions. 1st step Kalman filter. 2nd step optimal estimation." ; double humr_err(time, height) ; humr_err:units = "1" ; humr_err:long_name = "humidity mixing ratio error" ; humr_err:comment = "This error is calculated by covariance matrices" ; humr_err:_FillValue = -999. ; humr_err:valid_min = 0. ; humr_err:valid_max = 0.0500000007450581 ; short flag(time) ; flag:long_name = "quality control flags" ; flag:flag_masks = 1s, 2s, 4s, 8s, 16s, 32s, 64s ; flag:flag_meanings = "no_water_vapour_lidar_data no_cloud_base_from_lidar no_MWR_data flagged_MWR_data rain no_convergence lwc_flag" ; flag:_FillValue = 0s ; flag:valid_min = 0s ; flag:valid_max = 127s ; float zcb(time) ; zcb:units = "m" ; zcb:standard_name = "cloud_base_altitude" ; zcb:long_name = "cloud base altitude" ; zcb:comment = "Cloud base altitude is determined by the gradient method applied to the 1064nm range-corrected signal from the Raman lidar." ; zcb:_FillValue = -999.f ; zcb:valid_min = 0.f ; zcb:valid_max = 10000.f ; float ztr(time) ; ztr:units = "m" ; ztr:long_name = "truncation altitude" ; ztr:comment = "Altitude where the lidar profile is truncated. Usually at zcb. When no Raman lidar water vapour measurements are taken (e.g. during daytime) or when the background noise at the 387nm channel is too high, the truncation altitude is set to the surface." ; ztr:_FillValue = -999.f ; ztr:valid_min = 0.f ; ztr:valid_max = 10000.f ; // global attributes: :Title = "Humidity mixing ratio profiles from a combination of Raman lidar and microwave radiometer" ; :Institution = "Leipzig Institute for Meteorology" ; :Contact_person = "Bernhard Pospichal ( bernhard.pospichal@
null uni-leipzig.de
:Source = "Raman lidar PollyXT and Microwave Radiometer HATPRO" ; :History = "---" ; :Dependencies = "external" ; :Conventions = "Based on CF-1.6" ; :Processing_date = "Mon Feb 1 14:12:27 2016" ; :Author = "Andreas Foth ( andreas.foth@
null uni-leipzig.de
:Comments = "none" ; :License = "For non-commercial use only. This data is subject to the HD(CP)2 data policy to be found at hdcp2.zmaw.de and in the HD(CP)2 Observation Data Product Standard." ; }