Level_2A_Processing_Parameters_03_12

xml record

Data Set Record id field name definition 0 FH_Default_Fields xml record Fields responsible for populating the Fixed Header id field name definition 0 File_Description xml string 1-line description of the file 1 Notes xml string Multi-lines free text 2 Mission xml string Aeolus 3 Mission_Id xml string AE 4 File_Class xml string 1-Line description of the file class 5 File_Version ascii int16 4 digits used to distinguish between versions of a file having the same validity period 6 System xml string Aeolus L2aP 7 Creator xml string AE_L1B_L2A 8 Creator_Version xml string Version of the tool 1 MPH_Default_Fields xml record Values responsible for populating the main product header id field name definition 0 Ref_Doc xml string Reference document describing the product 1 Software_Ver xml string Software version number of processing software. Format: name of processor (up to 10 char) version number (4 char) 2 Proc_Centre xml string Set to "Local" 2 Config_Params xml record id field name definition 0 ATB xml record id field name definition 0 G_Ray ascii double The fraction of particulate backscatter that is detected by the (non-central) pixels of the MSP detector assigned to the "virtual Rayleigh channel" (zero Doppler-shift). 1 G_Mie ascii double The fraction of particulate backscatter that is detected by the (central) pixels of the MSP detector assigned to the "virtual Mie channel" (zero Doppler-shift). 2 P_Xt_Lookup ascii array[6] Pressure grid for the F_Ray and F_Mie look-up table, consisting of N_P = 6 pressure values. ascii double unit: "hPa" 3 T_Xt_Lookup ascii array[15] Pressure grid for the F_Ray and F_Mie look-up table, consisting of N_T = 15 pressure values. ascii double unit: "K" 4 List_of_F_Rays xml record List of F_Ray values attribute: count xml string id field name definition 0 F_Ray xml array[15] ascii array[6] ascii double The fraction of molecular backscatter that is detected by the (central) pixels of the MSP detector assigned to the "virtual Rayleigh channel" (zero Doppler shift). Array of N_P entries of the look-up table for F_Ray. 5 List_of_F_Mies xml record attribute: count xml string id field name definition 0 F_Mie xml array[15] ascii array[6] ascii double The fraction of molecular backscatter that is detected by the (central) pixels of the MSP detector assigned to the "virtual Mie channel" (zero Doppler shift). Array of N_P entries of the look-up table for F_Mie. 1 Feature_KNMI xml record id field name definition 0 Sensor_Config xml record id field name definition 0 Noise_Channel_Lower_Height ascii double Lower height for which the mean noise level in the channel is calculated. unit: "m" attribute: unit ascii string 1 Noise_Channel_Upper_Height ascii double Upper height for which the mean noise level in the channel is calculated. unit: "m" attribute: unit ascii string 2 PRF_Lidar ascii double Pulse repeat frequency of ALADIN. unit: "Hz" attribute: unit ascii string 3 Surf_Multiply ascii double The value for which the Mie signals have to be above the noise to detect surface. 4 Sat_Velocity ascii double Velocity of the ADM satellite. unit: "km/s" attribute: unit ascii string 5 Max_Gap_Statistics ascii double Maximum size of the gap allowed for which the atmospheric statistics does not change (~60 km). unit: "m" attribute: unit ascii string 6 Surface_Diff_DEM ascii double Maximum difference between Lidar surface and DEM information allowed. unit: "m" attribute: unit ascii string 7 Dual_Surface_Return_Factor ascii double Fraction of the 4 pixels above surface to assign as additional surface peak. 8 S1_S2_Min_Jump_Ratio ascii double The minimum ratio between the first (s1) to second (s2) pixel required to set s1 as surface. 9 S0_S1_Max_Jump_Ratio ascii double The maximum ratio between the surface signal (s0) and the first pixel (s1) to set s1 as surface. 1 Algorithm_Configuration xml record id field name definition 0 Feature_Mask xml record id field name definition 0 Prob_Mie_Min_Val ascii double Minimum probability value accepted by hybrid median masking. 1 Prob_Ray_Max_Val ascii double Maximum Rayleigh probability value accepted by hybrid median masking (between 0 and 100). 2 Always_Feature ascii double Minimum probability for which the pixel is always assigned as feature. 3 Hybrid_Median_Iteration ascii uint8 Number of iterations performed with the hybrid median algorithm. 1 Gauss_Fitting xml record id field name definition 0 Gauss_Version xml string Possible entries are "Quadratic" and "MultiGauss". 1 N_Histo ascii uint16 Number of histogram data points. 2 Histo_Min_Val ascii double Minimum histogram value. 3 Gauss_Ratio ascii array[4] Ratio for which signal has to exceed the gaussian fit to be qualified as feature. ascii double 2 Max_Entropy xml record id field name definition 0 Convol_Dims ascii array[2] Size in pixels of the convolution kernel (x,z) used. ascii uint8 1 Convol_Size ascii uint8 Gaussian width of the convolution kernel (x,z) used in the procedure (sig=value/alog(8)). 2 Convol_Params ascii array[4] Defines the iteration steps after which the convolution results are checked for gaussian fit. ascii uint16 3 Max_Feat_Convol ascii array[4] Maximum value of the featuremask assigned per convolution (negative=full stat.) ascii uint8 4 N_Convol ascii uint16 Number of iterations for convolution. 5 Prob_Noise_Val ascii double Factor for surface noise probability. 6 Surface_Noise ascii uint8 Value given to the lowest bin to increase chance of finding surface values. 2 SAMS xml record id field name definition 0 Wavelength ascii double Laser wavelength. unit: "m" attribute: unit ascii string 1 Maximum_Altitude ascii uint32 Altitude up to which AMD profiles are calculated. unit: "m" attribute: unit ascii string 2 Minimum_Altitude ascii int16 Altitude down to which AMD profiles are calculated. unit: "m" attribute: unit ascii string 3 Altitude_Step ascii uint16 Vertical resolution of the calculation of AMD profiles. unit: "m" attribute: unit ascii string 4 Betam_Factor ascii double Multiplicative factor in the formula to get the molecular backscatter coefficient from atmospheric data. unit: "1/m/sr" attribute: unit ascii string available: optional 5 Reference_Wavelength ascii double Reference wavelength in the formula to get the molecular backscatter coefficient from atmospheric data. unit: "m" attribute: unit ascii string 6 Wavelength_Exponent ascii double Exponent of the ratio of wavelengths in the formula to get the molecular backscatter coefficient from atmospheric data. 7 Reference_Pressure ascii uint16 Reference pressure in the formula to get the molecular backscatter coefficient from atmospheric data. unit: "hPa" attribute: unit ascii string 8 Reference_Temperature ascii uint16 Reference temperature in the formula to get the molecular backscatter coefficient from atmospheric data unit: "K" attribute: unit ascii string 9 MatchAMD xml record id field name definition 0 Time_Gap_Threshold ascii uint16 Threshold lesser than which the delay between a measurement and an AMD profile must be. unit: "s" attribute: unit ascii string 3 L2Ap xml record id field name definition 0 Quality_Flag xml record id field name definition 0 Mie_Snr_Threshold ascii uint16 Threshold on the Mie SNR to consider the Mie signal as valid 1 Rayleigh_Snr_Threshold ascii uint16 Threshold on the Rayleigh SNR to consider the Rayleigh signal as valid 2 Mid_Mie_Snr_Threshold ascii uint16 Threshold on the Mie SNR defined on middle bins to consider the Mie signal as valid 3 Mid_Rayleigh_Snr_Threshold ascii uint16 Threshold on the Rayleigh SNR defined on middle bins to consider the Rayleigh signal as valid 4 Beta_Error_Bar_Threshold ascii uint16 Threshold on the relative error of particle backscatter retrieval (ratio of the variance of the particle backscatter coefficient to the particle backscatter coefficient) unit: "%" attribute: unit ascii string 5 Alpha_Error_Bar_Threshold ascii uint16 Threshold on the relative error of particle extinction retrieval (ratio of the variance of the particle extinction coefficient to the particle extinction coefficient) unit: "%" attribute: unit ascii string 6 Mid_Beta_Error_Bar_Threshold ascii uint16 Threshold on the relative error of particle backscatter retrieval on middle bins (ratio of the variance of the particle backscatter coefficient to the particle backscatter coefficient defined on middle bins) unit: "%" attribute: unit ascii string 7 Mid_Alpha_Error_Bar_Threshold ascii uint16 Threshold on the relative error of particle extinction retrieval on middle bins (ratio of the variance of the particle extinction coefficient to the particle extinction coefficient defined on middle bins) unit: "%" attribute: unit ascii string 8 Total_Optical_Depth_Threshold ascii uint16 Threshold above which we consider that the backscattered signal was totally attenuated by absorption. 9 BER_Max_Threshold ascii double Above this value, the BER retrieval is supposed to be invalid unit: "sr^-1" attribute: unit ascii string 10 BER_Min_Threshold ascii double Below this value, the BER retrieval is supposed to be invalid unit: "sr^-1" attribute: unit ascii string 1 Find_Matching_Bins xml record id field name definition 0 Altitude_Match_Threshold ascii uint16 Threshold lesser than which the gap between a Rayleigh bin border and a Mie bin border must be for them to match. unit: "m" attribute: unit ascii string 2 Radiometric_Correction xml record id field name definition 0 Radiometric_Correction_Switch_On ascii uint8 If radiometric correction shall be applied, set to '1', else '0'. 1 Min_Signal_Level ascii double Minimum signal level for observed signal to be used for the radiometric correction. unit: "ACCD counts" attribute: unit ascii string 2 Rho_Threshold ascii double SR threshold for selection of aerosol free bins within the height regime specified by Lower_Height and Upper_Height. 3 Lower_Height ascii uint16 Lower boundary of height regime for signals used for radiometric correction. unit: "m" attribute: unit ascii string 4 Upper_Height ascii uint16 Upper boundary of height regime for signals used for radiometric correction. unit: "m" attribute: unit ascii string 5 Filter_Size ascii uint16 2*Filter_Size + 1 is used as the window size for the median filter applied to energy corrected Kray/Kmie derived from aerosol free bins on BRC level. 3 Denoising_Optimizer xml record id field name definition 0 Denoising_Optimizer_Switch_On ascii uint16 Switch for denoising algorithm. If set to 1, the algorithm is run, 0 otherwise. 4 Feature_Finder xml record id field name definition 0 FF_Mie_Snr_Threshold ascii double SNR threshold used in median filter. 1 FF_Median_Filter_Width ascii uint16 Width given as number of measurements used to smooth SNR values. 2 FF_Min_Group_Size ascii uint16 Minimum number of measurements needed to form a group. 3 FF_Transmission_Threshold ascii double Transmission threshold used in median filter. 5 SCA xml record id field name definition 0 Clear_FMB_Beta_Threshold ascii double Particulate backscatter coefficient value below which the first matching bin will be considered empty of any particle, introducing thus no oscillating bias in the extinction retrieval. unit: "m^-1 sr^-1" attribute: unit ascii string 1 Negative_Betap_Threshold ascii double Particulate backscatter coefficient value below which the coefficient and its derivatives will be considered invalid and set to -1. Slightly ngative values may be accepted to catch a glimps of the oscillations around zero. unit: "m^-1 sr^-1" attribute: unit ascii string 2 Negative_SLOD_Threshold ascii double SLOD value below which the coefficient and its derivatives will be considered invalid and set to -1. Slightly ngative values may be accepted to catch a glimps of the oscillations around zero. 3 Negative_Betap_Threshold2 ascii double Particulate backscatter coefficient value below which thecoefficient and its derivatives will be considered invalid and set to - 1. Slightly ngative values may be accepted to catch a glimps of the oscillations around zero. unit: "m^-1 sr^-1" attribute: unit ascii string 6 ICA xml record id field name definition 0 Emptiness_Betap_Threshold ascii double Particulate backscatter coefficient value below which it is considered that there is no significant amount of particles. Note that it may be the same as for the feature finder. unit: "m^-1 sr^-1" attribute: unit ascii string 1 Negative_Betap_Threshold ascii double Negative value under which fluctuations are considered to be too high, leading to a rejection of the bin. unit: "m^-1 sr^-1" attribute: unit ascii string 2 List_of_Filling_Cases xml record attribute: count xml string id field name definition 0 Filling_Case xml array[dim_0] dim_0: determined automatically from xml file xml record id field name definition 0 F1 ascii double Factor of the constant member. 1 F2 ascii double Factor of the H function. 2 F3 ascii double Factor of the exponential function. 3 Credibility_Criterion ascii double Particulate backscatter coefficient value below which thecoefficient and its derivatives will be considered invalid and set to - 1. Slightly negative values may be accepted to catch a glimps of the oscillations around zero. 4 Max_Cloud_Width ascii uint8 Maximum number of consecutive height bins with cloud allowed for ICA algorithm. 7 Trans2LOD xml record id field name definition 0 Iteration_Max ascii uint16 Maximum number of iterations in the iterative estimation of the SLOD. 1 Inversion_Tolerance ascii double Maximum gap between the ratio of the normalized two way transmission and the squared transmission from the satellite to the bin and the value resulting of the SLOD estimation. 2 Asymptotic_Expansion_Limit_Coefficient ascii double Coefficient involved in the determination of the asymptotic expansion to be used in the inversion to get the SLOD. It's value is set to 0.4 and may be static. 8 MCA xml record id field name definition 0 Low_SR_Fine_Threshold ascii double Value below which the SR_fine frim L1B data is considered not vali. Note that the default value of 0.75 will obviously lead to quantitatively wrong results, but the shape of the variations may be ept in the calculation thus enabling some interpretation. 9 Scene_Classification xml record id field name definition 0 Scattering_Ratio_Cloud_Threshold ascii double Value of the SR above which the presence of a cloud is strongly assumed. 1 BER_Cloud_Threshold ascii double Value of the BER below which the presence of a cloud is strongly assumed. unit: "m^-1 sr^-1" attribute: unit ascii string 2 Water_Melting_Temperature ascii double Set to 273.15 K for 1 bar pressure. unit: "K" attribute: unit ascii string 3 Surfusion_Threshold_Temperature ascii double Temperature down to which supercooled water may be seen in the atmosphere. Set to 233.15 K. unit: "K" attribute: unit ascii string 4 Relative_Humidity_Cloud_Threshold ascii double RH value above which the presence of a cloud is strongly assumed. Taking the incertitude of the model, it is set to 0.94. 3 System_Params xml record id field name definition 0 Simulated_Data_Flag ascii uint8 Flag indicating if simulated or measurement AISP data was used to process up to Level 1B mapping: "FALSE" -> 0 mapping: "False" -> 0 mapping: "false" -> 0 mapping: "TRUE" -> 1 mapping: "True" -> 1 mapping: "true" -> 1