Analysis
[[report_1_analysis_workshop.pdf|Report of activities during this workshop.]]
!! Participants
* Antonieta Silva, CEFOP - Chile
* Daniel Nisperuza, UNAL - Colombia
* Fabio Lopes, IPEN - Brasil
* Henrique Barbosa, USP - Brasil
* Pablo Ristori, CEILAP - Argentina
* output - 1 (aerosoles)
** ascii file, up to four columns. Use -999 if not giving some of these columns..
### first height = m
### second backscatter = 1/Mm / sr
### third extinction = 1/Mm
### fourth lidar ratio = sr
### second molecular backscatter = 1/Mm / sr (step 3)
### third molecular extinction = 1/Mm (step 3)
[[Attach:SynthProf_cld6km_abl1500.txt|Data set by Pablo Ristori, Argentina]]
* Cloud at 6km LR=28 and beta = ~50 Mm^-1 sr^-1
* Aerosols at BL up to 1.5km, LR=28, beta = 5 Mm^-1 sr^-1 and residual aerosols, LR=28, beta = 0.5 Mm^-1 sr^-1
** [[Attach:SynthProf_cld6km_abl1500_v2.txt|Data set #2 by Pablo Ristori, Argentina]]- Cloud at 6km LR=28, BL at 1.5km LR=28 and not residual aerosols
* Strong cloud - download [[Attach:SynthProf_cld6km_abl1500.txt|input]] and the [[|output]]
** Cloud at 6km LR=28 and beta = ~ 280 Mm^-1 sr^-1 (Cloud optical depth = 1.0)
** Aerosols at BL up to 1.5km, LR=28, beta = 5 Mm^-1 sr^-1 and residual aerosols, LR=28, beta = 0.5 Mm^-1 sr^-1
* Weak cloud [[Attach:SynthProf_cld6km_abl1500_v2.txt|download]]
** Cloud at 6km LR=28 and beta = ~ 57 Mm^-1 sr^-1 (Cloud optical depth = 0.2)
** Aerosols at BL up to 1.5km, LR=28, beta = 5 Mm^-1 sr^-1 and no residual aerosols
** [[Attach:SynthProf_cld6km_abl1500.txt|Data set by Pablo Ristori, Argentina]] - Cloud at 6km LR=28, BL at 1.5km LR=28 and residual aerosols 10%
* Earlinet
** [[Attach:holger.zip|Data sent by H. Baars, iFT, Leipzig - Germany]] - This should be the profiles used for the first Earlinet paper on the elastic retrievals
*** fourth lidar ratio = sr
*** second molecular backscatter = 1/Mm / sr (step 3)
*** third molecular extinction = 1/Mm (step 3)
*** first height = m
*** second backscatter = 1/Mm / sr
*** third extinction = 1/Mm
* output - 2 (moleculas)
* ascii file, header lines starting with #
*** # rayleigh cross section at std pressure and temperature = m2
*** # avogadro number = #
*** # co2 concentration = ppmv
***
*** altitude = m
*** rayleigh cross section at press and temperature of each level = m2
*** rayleigh signal
* Input
** pressure = hPa
** temperature e dew point = degC
** lidar ratio = sr
** altitude = m
*** This should be the profiles used for the raman Earlinet paper
[[Program Workshop Lidar Inversion March 2014 - HTML]]
!! Data files
* Holger
** [[sim1_064.nc]]
** [[sim1_532.nc]]
** [[sim1_355.nc]]
* Gesolomina
Lidar researchers representing each Lidar group from the Latin America Lidar Network (ALINE) will participate in the first workshop on Lidar inversion algorithms supported by the Center for Optics and Photonics (CEFOP) of the Universidad de Concepción. Main goal of this first workshop is the establishment of a quantitative Lidar dataset to describe the aerosol vertical, horizontal, and temporal distribution, including its variability on a continental scale. This dataset could be a comprehensive data source to address the four- dimensional spatio-temporal distribution of aerosols on a global scale.
The working days will be held in the Universidad de Concepción, according to the following program:
!! Day 1. (Monday, March 10th, 2014)
09h. Meeting on the hall (first floor) of Faculty of Physical Sciences and Mathematics, Universidad de Concepción, Chile (Calle Esteban Iturra).
09.15-09.45: 30min Step 1. Getting acquainted with the first EARLINET simulation case (Boeckmann et al., Appl. Opt., 2004). File structure, available variables, input format and units will be described. Expected output format and units will be defined for easy comparison.
09:45-10h: Coffe Break
10h-13h: 3hs Step 2. Each group should processes this dataset using their own version of the Klett-Fernald method and compute separately Rayleigh and particle backscattering.
!!! Step 3. Upload of results #1. 13h-14-30h: Lunch
14.30-16h: 1h30 Step 4. Presentation of each group’s methodology: from the molecular calculation to the method of integration. These presentations should be prepared prior to the workshop.
16-16.30h: 30min Step 5. Comparison of calculated particle properties with the simulation input profiles. Discussion should follow.
16:30-17h: 30min Coffee break.
17h-19h: 2h Step 6. Simulation input files will be distributed. Groups should use those
for helping debugging the algorithms and obtaining an improved inversion. Step 7. Upload of results #2.
30min Step 8. Comparison of calculated particle properties with the simulation input profiles. Discussion should follow.
!! Day 2. (Tuesday, March 11th, 2014)
09-09.30h: 30min Step 9. Paper discussion: Bucholtz (1995) and Bodhaine (1999), or, computing the molecular backscattering from first principles.
09:30-11h: 1h30 Step 10. Check the calculation of all molecular quantities in all algorithms; take into account that absolute no difference should occur the same inputs are used. Then it should be checked how the reference height is chosen.
!!! Step 11. Upload of results #4.
11h-11.30: 30min Step 12. Comparison of calculated molecular properties. Discussion
should follow.
11.30-13h: 1h Step 13. Calibration of Lidar signal. Define the use of one single point or a height range to calibrate the Lidar signal.
!!! Step 14. Upload of results #4. 13h-14-30h: Lunch
14:30-15h: 30min Step 15. Comparison of calibrated lidar signals. Discussion should follow.
15h-16h: 1h Step 16. Checked how the reference height is chosen. If the same reference height and the same lidar ratio is used by each user, the output should be almost identical.
!!! Step 17. Upload of results #5. 16h-16.30: 30min Coffee break
16:30-17h: 30min Step 18. Comparison of inverted lidar signals: now we should have same molecular reference, same calibration and same reference height. Discussion should follow.
!! Day 3. (Wednesday, March 12th, 2014)
09:30-13h: 3h Step 19. Time for working on the codes and last intercomparison. Focus on signal processing: background removal, binning, smoothing and gluing.
13h-14-30h: Lunch
14:30-16:30: 2h Step 19. Time for discussing the unified algorithm (or two: matlab and mathematica). Preparation of the codes to be shared via ALINE from the contribution of the groups.
16:30-17h: 30min Coffee break
17h-19h: 2h Step 20. Time for discussing the unified algorithm (or two: matlab and mathematica). Preparation of the codes to be shared via ALINE from the contribution of the groups.
!! Day 4. (Thursday, March 13th, 2014)
09h-19h: All day Step 21. A manuscript will be write with the results. Emphasis will be done due to South America lidar network would be very valuable to contrast northern hemispheric with southern hemispheric aerosol conditions, and the consequences on climate.
13h-14-30h: Lunch
March, 10 to 13, 2014
!!! UNIVERSIDAD DE CONCEPCIÓN, CENTRO DE ÓPTICA Y FOTÓNICA
!!! Programa de Financiamiento Basal para Centros Científicos y Tecnológicos de Excelencia -CONICYT
!!! March, 10 to 13, 2014
!! UNIVERSIDAD DE CONCEPCIÓN, CENTRO DE ÓPTICA Y FOTÓNICA
!! Programa de Financiamiento Basal para Centros Científicos y Tecnológicos de Excelencia -CONICYT
!! March, 10 to 13, 2014
I Workshop on Lidar Inversion Algorithms-ALINE Concepción, Chile
Analysis.Concepcion2014 History
Hide minor edits - Show changes to output
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[[report_1_analysis_workshop.pdf|Report of activities during this workshop.]]
to:
[[Attach:report_1_analysis_workshop.pdf|REPORT of activities during this workshop. <- DOWNLOAD IT!]]
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[[report_1_analysis_workshop.pdf|Report of activities during this workshop.]]
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*** Bg=10^8-- download [[Attach:holger-poisson-S1k-bg1e8.txt|holger-poisson-S1k-bg1e8.txt]]
*** Bg=10^7-- download [[Attach:holger-poisson-S1k-bg1e7.txt|holger-poisson-S1k-bg1e7.txt]]
*** Bg=10^6-- download [[Attach:holger-poisson-S1k-bg1e6.txt|holger-poisson-S1k-bg1e6.txt]]
*** Bg=10^7-- download [[Attach:holger-poisson-S1k-bg1e7.txt|holger-poisson-S1k-bg1e7.txt]]
*** Bg=10^6-- download [[Attach:holger-poisson-S1k-bg1e6.txt|holger-poisson-S1k-bg1e6.txt]]
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*** Bg=10^5-- download [[Attach:holger-poisson-S1k-bg1e5.txt|holger-bg1e5.txt]]
*** Bg=10^4-- download [[Attach:holger-poisson-S1k-bg1e4.txt|holger-bg1e4.txt]]
*** Bg=10^3-- download [[Attach:holger-poisson-S1k-bg1e3.txt|holger-bg1e3.txt]]
*** Bg=10^2-- download [[Attach:holger-poisson-S1k-bg1e2.txt|holger-bg1e2.txt]]
*** Bg=10^1-- download [[Attach:holger-poisson-S1k-bg1e1.txt|holger-bg1e1.txt]]
*** Bg=10^0-- download [[Attach:holger-poisson-S1k-bg1e0.txt|holger-bg1e0.txt]]
*** Bg=10^4-- download [[Attach:holger-poisson-S1k-bg1e4.txt|holger-bg1e4.txt]]
*** Bg=10^3-- download [[Attach:holger-poisson-S1k-bg1e3.txt|holger-bg1e3.txt]]
*** Bg=10^2-- download [[Attach:holger-poisson-S1k-bg1e2.txt|holger-bg1e2.txt]]
*** Bg=10^1-- download [[Attach:holger-poisson-S1k-bg1e1.txt|holger-bg1e1.txt]]
*** Bg=10^0-- download [[Attach:holger-poisson-S1k-bg1e0.txt|holger-bg1e0.txt]]
to:
*** Bg=10^5-- download [[Attach:holger-poisson-S1k-bg1e5.txt|holger-poisson-S1k-bg1e5.txt]]
*** Bg=10^4-- download [[Attach:holger-poisson-S1k-bg1e4.txt|holger-poisson-S1k-bg1e4.txt]]
*** Bg=10^3-- download [[Attach:holger-poisson-S1k-bg1e3.txt|holger-poisson-S1k-bg1e3.txt]]
*** Bg=10^2-- download [[Attach:holger-poisson-S1k-bg1e2.txt|holger-poisson-S1k-bg1e2.txt]]
*** Bg=10^1-- download [[Attach:holger-poisson-S1k-bg1e1.txt|holger-poisson-S1k-bg1e1.txt]]
*** Bg=10^0-- download [[Attach:holger-poisson-S1k-bg1e0.txt|holger-poisson-S1k-bg1e0.txt]]
*** Bg=10^4-- download [[Attach:holger-poisson-S1k-bg1e4.txt|holger-poisson-S1k-bg1e4.txt]]
*** Bg=10^3-- download [[Attach:holger-poisson-S1k-bg1e3.txt|holger-poisson-S1k-bg1e3.txt]]
*** Bg=10^2-- download [[Attach:holger-poisson-S1k-bg1e2.txt|holger-poisson-S1k-bg1e2.txt]]
*** Bg=10^1-- download [[Attach:holger-poisson-S1k-bg1e1.txt|holger-poisson-S1k-bg1e1.txt]]
*** Bg=10^0-- download [[Attach:holger-poisson-S1k-bg1e0.txt|holger-poisson-S1k-bg1e0.txt]]
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** Noise and background added to the input signal as Signal -> Poissrnd(1000*Signal + BG)). Columns are: alt, 355, 532 and 1064.
to:
** Noise and background added to the input signal as Signal -> Poissrnd(1000*(Signal + BG)). Columns are: alt, 355, 532 and 1064.
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** Noise and background added to the input signal as Signal -> Poissrnd(Signal + BG). Columns are: alt, 355, 532 and 1064.
to:
** Noise and background added to the input signal as Signal -> Poissrnd(Signal + BG). Columns are: alt, 355, 532 and 1064. This is wrong because the original signal if very small at the end and the Poisson() will result in single values.
Added lines 34-40:
** Noise and background added to the input signal as Signal -> Poissrnd(1000*Signal + BG)). Columns are: alt, 355, 532 and 1064.
*** Bg=10^5-- download [[Attach:holger-poisson-S1k-bg1e5.txt|holger-bg1e5.txt]]
*** Bg=10^4-- download [[Attach:holger-poisson-S1k-bg1e4.txt|holger-bg1e4.txt]]
*** Bg=10^3-- download [[Attach:holger-poisson-S1k-bg1e3.txt|holger-bg1e3.txt]]
*** Bg=10^2-- download [[Attach:holger-poisson-S1k-bg1e2.txt|holger-bg1e2.txt]]
*** Bg=10^1-- download [[Attach:holger-poisson-S1k-bg1e1.txt|holger-bg1e1.txt]]
*** Bg=10^0-- download [[Attach:holger-poisson-S1k-bg1e0.txt|holger-bg1e0.txt]]
*** Bg=10^5-- download [[Attach:holger-poisson-S1k-bg1e5.txt|holger-bg1e5.txt]]
*** Bg=10^4-- download [[Attach:holger-poisson-S1k-bg1e4.txt|holger-bg1e4.txt]]
*** Bg=10^3-- download [[Attach:holger-poisson-S1k-bg1e3.txt|holger-bg1e3.txt]]
*** Bg=10^2-- download [[Attach:holger-poisson-S1k-bg1e2.txt|holger-bg1e2.txt]]
*** Bg=10^1-- download [[Attach:holger-poisson-S1k-bg1e1.txt|holger-bg1e1.txt]]
*** Bg=10^0-- download [[Attach:holger-poisson-S1k-bg1e0.txt|holger-bg1e0.txt]]
Changed lines 41-43 from:
** Input is
*** 1- altitude
*** 2 - signal at 355nm
to:
** Input is: 1- altitude and 2 - signal at 355nm
Changed lines 46-48 from:
** Input is
*** 1- altitude
*** 2 - signal at 355nm
to:
** Input is: 1- altitude and 2 - signal at 355nm
Added lines 41-43:
** Input is
*** 1- altitude
*** 2 - signal at 355nm
*** 1- altitude
*** 2 - signal at 355nm
Added lines 48-50:
** Input is
*** 1- altitude
*** 2 - signal at 355nm
*** 1- altitude
*** 2 - signal at 355nm
Added lines 54-58:
** Alternative input with extra noise and background
*** Bg=10^6-- download [[Attach:ristori-bg1e6.txt|ristori-bg1e6.txt]]
*** Bg=10^4-- download [[Attach:ristori-bg1e4.txt|ristori-bg1e4.txt]]
*** Bg=10^2-- download [[Attach:ristori-bg1e2.txt|ristori-bg1e2.txt]]
*** Bg=10^0-- download [[Attach:ristori-bg1e0.txt|ristori-bg1e0.txt]]
*** Bg=10^6-- download [[Attach:ristori-bg1e6.txt|ristori-bg1e6.txt]]
*** Bg=10^4-- download [[Attach:ristori-bg1e4.txt|ristori-bg1e4.txt]]
*** Bg=10^2-- download [[Attach:ristori-bg1e2.txt|ristori-bg1e2.txt]]
*** Bg=10^0-- download [[Attach:ristori-bg1e0.txt|ristori-bg1e0.txt]]
Changed line 38 from:
Pablo Ristori (Ceilap - Argetina) also provided a simulated dataset. This is more complicated as it includes clouds and aerosols. Two versions are available:
to:
Pablo Ristori (Ceilap - Argetina) also provided a simulated dataset. This is more complicated as it includes clouds and aerosols. Input is only available for 355nm at the moment. Two versions are available:
Changed lines 29-33 from:
** Noise and background added to the input signal: Signal -> Poissrnd(Signal + BG)
*** Bg=10^6-- download [[Attach:holger-bg1e6.txt]]
*** Bg=10^4-- download [[Attach:holger-bg1e4.txt]]
*** Bg=10^2-- download [[Attach:holger-bg1e2.txt]]
*** Bg=10^0-- download [[Attach:holger-bg1e0.txt]]
*** Bg=10^
*** Bg=10^
to:
** Noise and background added to the input signal as Signal -> Poissrnd(Signal + BG). Columns are: alt, 355, 532 and 1064.
*** Bg=10^6-- download [[Attach:holger-bg1e6.txt|holger-bg1e6.txt]]
*** Bg=10^4-- download [[Attach:holger-bg1e4.txt|holger-bg1e4.txt]]
*** Bg=10^2-- download [[Attach:holger-bg1e2.txt|holger-bg1e2.txt]]
*** Bg=10^0-- download [[Attach:holger-bg1e0.txt|holger-bg1e0.txt]]
*** Bg=10^6-- download [[Attach:holger-bg1e6.txt|holger-bg1e6.txt]]
*** Bg=10^4-- download [[Attach:holger-bg1e4.txt|holger-bg1e4.txt]]
*** Bg=10^2-- download [[Attach:holger-bg1e2.txt|holger-bg1e2.txt]]
*** Bg=10^0-- download [[Attach:holger-bg1e0.txt|holger-bg1e0.txt]]
Added lines 29-33:
** Noise and background added to the input signal: Signal -> Poissrnd(Signal + BG)
*** Bg=10^6-- download [[Attach:holger-bg1e6.txt]]
*** Bg=10^4-- download [[Attach:holger-bg1e4.txt]]
*** Bg=10^2-- download [[Attach:holger-bg1e2.txt]]
*** Bg=10^0-- download [[Attach:holger-bg1e0.txt]]
*** Bg=10^6-- download [[Attach:holger-bg1e6.txt]]
*** Bg=10^4-- download [[Attach:holger-bg1e4.txt]]
*** Bg=10^2-- download [[Attach:holger-bg1e2.txt]]
*** Bg=10^0-- download [[Attach:holger-bg1e0.txt]]
Changed lines 37-38 from:
** Aerosols at BL up to 1.5km, LR=28, beta = 5 Mm^-1 sr^-1 and residual aerosols, LR=28, beta = 0.5 Mm^-1 sr^-1
to:
** BL Aerosols up to 1.5km, LR=28, beta = 5 Mm^-1 sr^-1
** Residual aerosols, LR=28, beta = 0.5 Mm^-1 sr^-1
** Residual aerosols, LR=28, beta = 0.5 Mm^-1 sr^-1
Changed lines 41-42 from:
** Aerosols at BL up to 1.5km, LR=28, beta = 5 Mm^-1 sr^-1 and no residual aerosols
to:
** BL Aerosols up to 1.5km, LR=28, beta = 5 Mm^-1 sr^-1
** No residual aerosols
** No residual aerosols
Changed line 29 from:
** Expected output [[Solut355.dat.txt|355nm]], [[Solut532.dat.txt|532nm]] and [[Solut064.dat.txt|1064nm]]
to:
** Expected output [[Attach:Solut355.dat.txt|355nm]], [[Attach:Solut532.dat.txt|532nm]] and [[Attach:Solut064.dat.txt|1064nm]]
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** P and T with better format [[Attach:Solut355.txt|download]]
to:
** P and T with better format [[Attach:Solut355.txt|download]]
Added line 29:
** Expected output [[Solut355.dat.txt|355nm]], [[Solut532.dat.txt|532nm]] and [[Solut064.dat.txt|1064nm]]
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** Signals for 355, 387, 532, 608, 1064 [[Attach:Gelsomina.zip|download]]
to:
** Signals for 355, 387, 532, 608, 1064 [[Attach:Gelsomina.zip|download input and output]]
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** Cloud at 6km LR=28 and beta = ~ 280 Mm^-1 sr^-1 (Cloud optical depth = 1.0)
to:
** Cloud at 6km LR=28 and beta ~= 280 Mm^-1 sr^-1 (Cloud optical depth = 1.0)
Changed line 38 from:
** Cloud at 6km LR=28 and beta = ~ 57 Mm^-1 sr^-1 (Cloud optical depth = 0.2)
to:
** Cloud at 6km LR=28 and beta ~= 57 Mm^-1 sr^-1 (Cloud optical depth = 0.2)
Changed line 54 from:
* Böckmann, C., Wandinger, U., Ansmann, A., Bösenberg, J., Amiridis, V., Boselli, A., … Wiegner, M. (2004). Aerosol Lidar Intercomparison in the Framework of the EARLINET Project. 2. A erosol Backscatter Algorithms. Applied Optics, 43(4), 977. doi:10.1364/AO.43.000977
to:
* Böckmann, C., Wandinger, U., Ansmann, A., Bösenberg, J., Amiridis, V., Boselli, A., … Wiegner, M. (2004). Aerosol Lidar Intercomparison in the Framework of the EARLINET Project. 2. Aerosol Backscatter Algorithms. Applied Optics, 43(4), 977. doi:10.1364/AO.43.000977
Changed line 55 from:
* Pappalardo, G., Amodeo, A., Pandolfi, M., Wandinger, U., Ansmann, A., B�senberg, J., … Wang, X. (2004). Aerosol Lidar Intercomparison in the Framework of the EARLINET Project. 3. Raman Lidar Algorithm for Aerosol Extinction, Backscatter, and Lidar Ratio. Applied Optics, 43(28), 5370. doi:10.1364/AO.43.005370
to:
* Pappalardo, G., Amodeo, A., Pandolfi, M., Wandinger, U., Ansmann, A., Bösenberg, J., … Wang, X. (2004). Aerosol Lidar Intercomparison in the Framework of the EARLINET Project. 3. Raman Lidar Algorithm for Aerosol Extinction, Backscatter, and Lidar Ratio. Applied Optics, 43(28), 5370. doi:10.1364/AO.43.005370
Added lines 10-17:
!! Participants
* Antonieta Silva, CEFOP - Chile
* Daniel Nisperuza, UNAL - Colombia
* Fabio Lopes, IPEN - Brasil
* Henrique Barbosa, USP - Brasil
* Pablo Ristori, CEILAP - Argentina
Changed lines 36-42 from:
# first height = m
#second backscatter = 1/Mm / sr
#third extinction = 1/Mm
#fourth lidar ratio = sr
#second molecular backscatter = 1/Mm / sr (step 3)
#third molecular extinction = 1/Mm (step 3)
#
#
#
#
#
to:
# height = m
# backscatter = 1/Mm / sr
# extinction = 1/Mm
# lidar ratio = sr
# molecular backscatter = 1/Mm / sr (step 3)
# molecular extinction = 1/Mm (step 3)
# synthetic molecular signal = 1/m / sr /m2 (step 3)
# backscatter = 1/Mm / sr
# extinction = 1/Mm
# lidar ratio = sr
# molecular backscatter = 1/Mm / sr (step 3)
# molecular extinction = 1/Mm (step 3)
# synthetic molecular signal = 1/m / sr /m2 (step 3)
Changed line 47 from:
* Pappalardo, G., Amodeo, A., Pandolfi, M., Wandinger, U., Ansmann, A., B�senberg, J., … Wang, X. (2004). Aerosol Lidar Intercomparison in the Framework of the EARLINET Project. 3. Raman Lidar Algorithm for Aerosol Extinction, Backscatter, and Lidar Ratio. Applied Optics, 43(28), 5370. doi:10.1364/AO.43.005370
to:
* Pappalardo, G., Amodeo, A., Pandolfi, M., Wandinger, U., Ansmann, A., B�senberg, J., … Wang, X. (2004). Aerosol Lidar Intercomparison in the Framework of the EARLINET Project. 3. Raman Lidar Algorithm for Aerosol Extinction, Backscatter, and Lidar Ratio. Applied Optics, 43(28), 5370. doi:10.1364/AO.43.005370
Changed lines 35-43 from:
** ascii file, up to four
#
#
#
#
to:
The output of your algorithms should produce simple ascii files without header and columns separated by TAB with the following columns:
# first height = m
# second backscatter = 1/Mm / sr
# third extinction = 1/Mm
# fourth lidar ratio = sr
# second molecular backscatter = 1/Mm / sr (step 3)
# third molecular extinction = 1/Mm (step 3)
# first height = m
# second backscatter = 1/Mm / sr
# third extinction = 1/Mm
# fourth lidar ratio = sr
# second molecular backscatter = 1/Mm / sr (step 3)
# third molecular extinction = 1/Mm (step 3)
Deleted line 46:
Changed lines 37-42 from:
# first height = m
# second backscatter = 1/Mm / sr
# third extinction = 1/Mm
# fourth lidar ratio = sr
# second molecular backscatter = 1/Mm / sr (step 3)
# third molecular extinction = 1/Mm (step 3)
# second backscatter = 1/Mm / sr
# third extinction = 1/Mm
# fourth lidar ratio = sr
# second molecular backscatter = 1/Mm / sr (step 3)
# third molecular extinction = 1/Mm (step 3)
to:
### first height = m
### second backscatter = 1/Mm / sr
### third extinction = 1/Mm
### fourth lidar ratio = sr
### second molecular backscatter = 1/Mm / sr (step 3)
### third molecular extinction = 1/Mm (step 3)
### second backscatter = 1/Mm / sr
### third extinction = 1/Mm
### fourth lidar ratio = sr
### second molecular backscatter = 1/Mm / sr (step 3)
### third molecular extinction = 1/Mm (step 3)
Changed line 29 from:
* Weak cloud - download [[Attach:SynthProf_cld6km_abl1500_v2.txt|input]] and the [[ristori-weak.txt|output]]
to:
* Weak cloud - download [[Attach:SynthProf_cld6km_abl1500_v2.txt|input]] and the [[Attach:ristori-weak.txt|output]]
Changed line 29 from:
* Weak cloud - download [[Attach:SynthProf_cld6km_abl1500_v2.txt|input]] and the [[|output]]
to:
* Weak cloud - download [[Attach:SynthProf_cld6km_abl1500_v2.txt|input]] and the [[ristori-weak.txt|output]]
Changed line 26 from:
* Strong cloud - download [[Attach:SynthProf_cld6km_abl1500.txt|input]] and the [[|output]]
to:
* Strong cloud - download [[Attach:SynthProf_cld6km_abl1500.txt|input]]
Changed line 29 from:
* Weak cloud [[Attach:SynthProf_cld6km_abl1500_v2.txt|download]]
to:
* Weak cloud - download [[Attach:SynthProf_cld6km_abl1500_v2.txt|input]] and the [[|output]]
Changed line 21 from:
* Profiles used for the raman Earlinet paper
to:
* Profiles used for the raman Earlinet paper (Pappalardo et al, 2004)
Changed lines 25-31 from:
* Cloud at 6km LR=28 and beta = ~
** [[Attach:SynthProf_cld6km_abl1500_v2.txt|Data set #2 by Pablo Ristori, Argentina]]
to:
* Strong cloud - download [[Attach:SynthProf_cld6km_abl1500.txt|input]] and the [[|output]]
** Cloud at 6km LR=28 and beta = ~ 280 Mm^-1 sr^-1 (Cloud optical depth = 1.0)
** Aerosols at BL up to 1.5km, LR=28, beta = 5 Mm^-1 sr^-1 and residual aerosols, LR=28, beta = 0.5 Mm^-1 sr^-1
* Weak cloud [[Attach:SynthProf_cld6km_abl1500_v2.txt|download]]
** Cloud at 6km LR=28 and beta = ~ 57 Mm^-1 sr^-1 (Cloud optical depth = 0.2)
** Aerosols at BL up to 1.5km, LR=28, beta = 5 Mm^-1 sr^-1 and no residual aerosols
Changed lines 46-48 from:
* Böckmann, C., Wandinger, U., Ansmann, A., Bösenberg, J., Amiridis, V., Boselli, A., … Wiegner, M. (2004). Aerosol Lidar Intercomparison in the Framework of the EARLINET Project. 2. A erosol Backscatter Algorithms. Applied Optics, 43(4), 977. doi:10.1364/AO.43.000977
to:
* Böckmann, C., Wandinger, U., Ansmann, A., Bösenberg, J., Amiridis, V., Boselli, A., … Wiegner, M. (2004). Aerosol Lidar Intercomparison in the Framework of the EARLINET Project. 2. A erosol Backscatter Algorithms. Applied Optics, 43(4), 977. doi:10.1364/AO.43.000977
* Pappalardo, G., Amodeo, A., Pandolfi, M., Wandinger, U., Ansmann, A., B�senberg, J., … Wang, X. (2004). Aerosol Lidar Intercomparison in the Framework of the EARLINET Project. 3. Raman Lidar Algorithm for Aerosol Extinction, Backscatter, and Lidar Ratio. Applied Optics, 43(28), 5370. doi:10.1364/AO.43.005370
* Pappalardo, G., Amodeo, A., Pandolfi, M., Wandinger, U., Ansmann, A., B�senberg, J., … Wang, X. (2004). Aerosol Lidar Intercomparison in the Framework of the EARLINET Project. 3. Raman Lidar Algorithm for Aerosol Extinction, Backscatter, and Lidar Ratio. Applied Optics, 43(28), 5370. doi:10.1364/AO.43.005370
Changed line 14 from:
* The profiles used for the first Earlinet paper on the elastic retrievals (Bockmann et al, App. Opt. 2004)
to:
* Profiles used for the first Earlinet paper on the elastic retrievals (Bockmann et al, App. Opt. 2004)
Changed line 21 from:
* The profiles used for the raman Earlinet paper
to:
* Profiles used for the raman Earlinet paper
Changed lines 24-25 from:
** [[Attach:SynthProf_cld6km_abl1500.txt|Data set by Pablo Ristori, Argentina]] - Cloud at 6km LR=28, BL at 1.5km LR=28 and residual
to:
Pablo Ristori (Ceilap - Argetina) also provided a simulated dataset. This is more complicated as it includes clouds and aerosols. Two versions are available:
[[Attach:SynthProf_cld6km_abl1500.txt|Data set by Pablo Ristori, Argentina]]
* Cloud at 6km LR=28 and beta = ~ 50 Mm^-1 sr^-1
* Aerosols at BL up to 1.5km, LR=28, beta = 5 Mm^-1 sr^-1 and residual aerosols, LR=28, beta = 0.5 Mm^-1 sr^-1
[[Attach:SynthProf_cld6km_abl1500.txt|Data set by Pablo Ristori, Argentina]]
* Cloud at 6km LR=28 and beta = ~ 50 Mm^-1 sr^-1
* Aerosols at BL up to 1.5km, LR=28, beta = 5 Mm^-1 sr^-1 and residual aerosols, LR=28, beta = 0.5 Mm^-1 sr^-1
Changed lines 14-15 from:
** [[Attach:holger.zip|Data sent by H. Baars, iFT, Leipzig - Germany]] - This should be the profiles used for the first Earlinet paper on the elastic retrievals (Bockmann et al, App. Opt. 2004)
*** [[Attach:Solut355.txt|better format of input press and temperature]]
to:
* The profiles used for the first Earlinet paper on the elastic retrievals (Bockmann et al, App. Opt. 2004)
** Signals for 355, 532 and 1064 nm and input P, T [[Attach:holger.zip|download]]
** P and T with better format [[Attach:Solut355.txt|download]]
** Signals for 355, 532 and 1064 nm and input P, T [[Attach:holger.zip|download]]
** P and T with better format [[Attach:Solut355.txt|download]]
Changed lines 21-24 from:
** [[Attach:Gelsomina.zip|Data set by Gelsomina, Italy]] - This should be the profiles used for the raman Earlinet paper
to:
* The profiles used for the raman Earlinet paper
** Signals for 355, 387, 532, 608, 1064 [[Attach:Gelsomina.zip|download]]
** Signals for 355, 387, 532, 608, 1064 [[Attach:Gelsomina.zip|download]]
Changed line 41 from:
* Böckmann, C., Wandinger, U., Ansmann, A., Bösenberg, J., Amiridis, V., Boselli, A., … Wiegner, M. (2004). Aerosol Lidar Intercomparison in the Framework of the EARLINET Project. 2. A erosol Backscatter Algorithms. Applied Optics, 43(4), 977. doi:10.1364/AO.43.000977
to:
* Böckmann, C., Wandinger, U., Ansmann, A., Bösenberg, J., Amiridis, V., Boselli, A., … Wiegner, M. (2004). Aerosol Lidar Intercomparison in the Framework of the EARLINET Project. 2. A erosol Backscatter Algorithms. Applied Optics, 43(4), 977. doi:10.1364/AO.43.000977
Changed lines 13-14 from:
to:
Our friends from Earlinet have provided datasets for us to try our algorithms.
** [[Attach:holger.zip|Data sent by H. Baars, iFT, Leipzig - Germany]] - This should be the profiles used for the first Earlinet paper on the elastic retrievals (Bockmann et al, App. Opt. 2004)
** [[Attach:holger.zip|Data sent by H. Baars, iFT, Leipzig - Germany]] - This should be the profiles used for the first Earlinet paper on the elastic retrievals (Bockmann et al, App. Opt. 2004)
Added lines 35-37:
!! References
* Böckmann, C., Wandinger, U., Ansmann, A., Bösenberg, J., Amiridis, V., Boselli, A., … Wiegner, M. (2004). Aerosol Lidar Intercomparison in the Framework of the EARLINET Project. 2. A erosol Backscatter Algorithms. Applied Optics, 43(4), 977. doi:10.1364/AO.43.000977
* Böckmann, C., Wandinger, U., Ansmann, A., Bösenberg, J., Amiridis, V., Boselli, A., … Wiegner, M. (2004). Aerosol Lidar Intercomparison in the Framework of the EARLINET Project. 2. A erosol Backscatter Algorithms. Applied Optics, 43(4), 977. doi:10.1364/AO.43.000977
Changed lines 28-33 from:
### first height = m
### second backscatter = 1/Mm / sr
### third extinction = 1/Mm
### fourth lidar ratio = sr
### second molecular backscatter = 1/Mm / sr (step 3)
### third molecular extinction = 1/Mm (step 3)
#
#
#
#
to:
# first height = m
# second backscatter = 1/Mm / sr
# third extinction = 1/Mm
# fourth lidar ratio = sr
# second molecular backscatter = 1/Mm / sr (step 3)
# third molecular extinction = 1/Mm (step 3)
# second backscatter = 1/Mm / sr
# third extinction = 1/Mm
# fourth lidar ratio = sr
# second molecular backscatter = 1/Mm / sr (step 3)
# third molecular extinction = 1/Mm (step 3)
Changed lines 31-33 from:
to:
### fourth lidar ratio = sr
### second molecular backscatter = 1/Mm / sr (step 3)
### third molecular extinction = 1/Mm (step 3)
### second molecular backscatter = 1/Mm / sr (step 3)
### third molecular extinction = 1/Mm (step 3)
Changed lines 28-30 from:
to:
### first height = m
### second backscatter = 1/Mm / sr
### third extinction = 1/Mm
### second backscatter = 1/Mm / sr
### third extinction = 1/Mm
Deleted lines 34-43:
* output - 2 (moleculas)
* ascii file, header lines starting with #
*** # rayleigh cross section at std pressure and temperature = m2
*** # avogadro number = #
*** # co2 concentration = ppmv
***
*** altitude = m
*** rayleigh cross section at press and temperature of each level = m2
*** rayleigh signal
Changed line 22 from:
** [[Attach:SynthProf_cld6km_abl1500_v2.txt|Data set #2 by Pablo Ristori, Argentina]] - Cloud at 6km LR=28, BL at 1.5km LR=28
to:
** [[Attach:SynthProf_cld6km_abl1500_v2.txt|Data set #2 by Pablo Ristori, Argentina]] - Cloud at 6km LR=28, BL at 1.5km LR=28 and not residual aerosols
Changed lines 21-22 from:
** [[Attach:SynthProf_cld6km_abl1500.txt|Data set by Pablo Ristori, Argentina]] - Cloud at 6km, BL at 1.5km
to:
** [[Attach:SynthProf_cld6km_abl1500.txt|Data set by Pablo Ristori, Argentina]] - Cloud at 6km LR=28, BL at 1.5km LR=28 and residual aerosols 10%
** [[Attach:SynthProf_cld6km_abl1500_v2.txt|Data set #2 by Pablo Ristori, Argentina]] - Cloud at 6km LR=28, BL at 1.5km LR=28
** [[Attach:SynthProf_cld6km_abl1500_v2.txt|Data set #2 by Pablo Ristori, Argentina]] - Cloud at 6km LR=28, BL at 1.5km LR=28
Deleted line 44:
Changed lines 21-22 from:
to:
** [[Attach:SynthProf_cld6km_abl1500.txt|Data set by Pablo Ristori, Argentina]] - Cloud at 6km, BL at 1.5km
Deleted line 43:
Added lines 30-32:
*** second molecular backscatter = 1/Mm / sr (step 3)
*** third molecular extinction = 1/Mm (step 3)
*** third molecular extinction = 1/Mm (step 3)
Changed lines 14-15 from:
** [[Attach:holger.zip|Data sent by H. Baars, iFT, Leipzig - Germany]]
*** This should be the profiles used for the first Earlinet paper on the elastic retrievals
to:
** [[Attach:holger.zip|Data sent by H. Baars, iFT, Leipzig - Germany]] - This should be the profiles used for the first Earlinet paper on the elastic retrievals
Changed lines 16-22 from:
*** Input
**** pressure = hPa
**** temperature e dew point =degC
**** lidar ratio = sr
**** altitude = m
** [[Attach:Gelsomina.zip|Data set by Gelsomina, Italy]]
*** This should be the profiles used for the raman Earlinet paper
**** temperature e dew point =
***
***
** [[Attach:Gelsomina.zip|Data set by Gelsomina, Italy]]
to:
*** pressure = hPa
*** temperature e dew point = degC
*** lidar ratio = sr
*** altitude = m
** [[Attach:Gelsomina.zip|Data set by Gelsomina, Italy]] - This should be the profiles used for the raman Earlinet paper
*** temperature e dew point = degC
*** lidar ratio = sr
*** altitude = m
** [[Attach:Gelsomina.zip|Data set by Gelsomina, Italy]] - This should be the profiles used for the raman Earlinet paper
Added lines 17-21:
*** Input
**** pressure = hPa
**** temperature e dew point = degC
**** lidar ratio = sr
**** altitude = m
**** pressure = hPa
**** temperature e dew point = degC
**** lidar ratio = sr
**** altitude = m
Deleted lines 25-30:
* Input
** pressure = hPa
** temperature e dew point = degC
** lidar ratio = sr
** altitude = m
Changed line 16 from:
*** [[Attach:Solut355.dat|better format of input press and temperature]]
to:
*** [[Attach:Solut355.txt|better format of input press and temperature]]
Added line 16:
*** [[Attach:Solut355.dat|better format of input press and temperature]]
Changed lines 17-44 from:
to:
*** This should be the profiles used for the raman Earlinet paper
!! Data format
* Input
** pressure = hPa
** temperature e dew point = degC
** lidar ratio = sr
** altitude = m
* output - 1 (aerosoles)
** ascii file, up to four columns. Use -999 if not giving some of these columns..
*** first height = m
*** second backscatter = 1/Mm / sr
*** third extinction = 1/Mm
*** fourth lidar ratio = sr
* output - 2 (moleculas)
* ascii file, header lines starting with #
*** # rayleigh cross section at std pressure and temperature = m2
*** # avogadro number = #
*** # co2 concentration = ppmv
***
*** altitude = m
*** rayleigh cross section at press and temperature of each level = m2
*** rayleigh signal
!! Data format
* Input
** pressure = hPa
** temperature e dew point = degC
** lidar ratio = sr
** altitude = m
* output - 1 (aerosoles)
** ascii file, up to four columns. Use -999 if not giving some of these columns..
*** first height = m
*** second backscatter = 1/Mm / sr
*** third extinction = 1/Mm
*** fourth lidar ratio = sr
* output - 2 (moleculas)
* ascii file, header lines starting with #
*** # rayleigh cross section at std pressure and temperature = m2
*** # avogadro number = #
*** # co2 concentration = ppmv
***
*** altitude = m
*** rayleigh cross section at press and temperature of each level = m2
*** rayleigh signal
Changed lines 14-15 from:
** [[Attach:holger.zip|Data sent by H. Baars, Leipzig]]
**[[Attach:Gelsomina.zip|Data set by Gelsomina, Italy]]
**
to:
** [[Attach:holger.zip|Data sent by H. Baars, iFT, Leipzig - Germany]]
*** This should be the profiles used for the first Earlinet paper on the elastic retrievals
** [[Attach:Gelsomina.zip|Data set by Gelsomina, Italy]]
*** This should be the profiles used for the raman Earlinet paper
*** This should be the profiles used for the first Earlinet paper on the elastic retrievals
** [[Attach:Gelsomina.zip|Data set by Gelsomina, Italy]]
*** This should be the profiles used for the raman Earlinet paper
Changed line 15 from:
** [[Attach:Gesolomina.zip|Data set by Gesolomina, Italy]]
to:
** [[Attach:Gelsomina.zip|Data set by Gelsomina, Italy]]
Changed lines 14-15 from:
** [[Attach:holger.zip]]
** [[Attach:Gesolomina.zip]]
** [[Attach:Gesolomina
to:
** [[Attach:holger.zip|Data sent by H. Baars, Leipzig]]
** [[Attach:Gesolomina.zip|Data set by Gesolomina, Italy]]
** [[Attach:Gesolomina.zip|Data set by Gesolomina, Italy]]
Changed lines 13-17 from:
* Holger
** [[Attach:sim1_064.nc]]
** [[Attach:sim1_532.nc]]
** [[Attach:sim1_355.nc]]
* Gesolomina
** [[Attach:
** [[Attach:sim1_355.nc]]
* Gesolomina
to:
* Earlinet
** [[Attach:holger.zip]]
** [[Attach:Gesolomina.zip]]
** [[Attach:holger.zip]]
** [[Attach:Gesolomina.zip]]
Changed lines 14-16 from:
** [[sim1_064.nc]]
** [[sim1_532.nc]]
** [[sim1_355.nc]]
** [[sim1_532.nc]]
** [[sim1_355.nc]]
to:
** [[Attach:sim1_064.nc]]
** [[Attach:sim1_532.nc]]
** [[Attach:sim1_355.nc]]
** [[Attach:sim1_532.nc]]
** [[Attach:sim1_355.nc]]
Changed lines 8-17 from:
[[Program Workshop Lidar Inversion March 2014 - HTML]]
to:
[[Program Workshop Lidar Inversion March 2014 - HTML]]
!! Data files
* Holger
** [[sim1_064.nc]]
** [[sim1_532.nc]]
** [[sim1_355.nc]]
* Gesolomina
Changed lines 7-8 from:
[[Attach:Program_concepcion_2014.pdf|Program Workshop Lidar Inversion March 2014 | PDF]]
[[Program Workshop Lidar Inversion March 2014| HTML]]
[[Program Workshop Lidar Inversion March 2014
to:
[[Attach:Program_concepcion_2014.pdf|Program Workshop Lidar Inversion March 2014 - PDF]]
[[Program Workshop Lidar Inversion March 2014 - HTML]]
[[Program Workshop Lidar Inversion March 2014 - HTML]]
Changed lines 7-8 from:
[[Attach:Program_concepcion_2014.pdf|Program Workshop Lidar Inversion March 2014 | PDF]]
to:
[[Attach:Program_concepcion_2014.pdf|Program Workshop Lidar Inversion March 2014 | PDF]]
[[Program Workshop Lidar Inversion March 2014 | HTML]]
[[Program Workshop Lidar Inversion March 2014 | HTML]]
Changed lines 7-72 from:
The working days will be held in the Universidad de Concepción, according to the following program:
!! Day 1. (Monday, March 10th, 2014)
09h. Meeting on the hall (first floor) of Faculty of Physical Sciences and Mathematics, Universidad de Concepción, Chile (Calle Esteban Iturra).
09.15-09.45: 30min Step 1. Getting acquainted with the first EARLINET simulation case (Boeckmann et al., Appl. Opt., 2004). File structure, available variables, input format and units will be described. Expected output format and units will be defined for easy comparison.
09:45-10h: Coffe Break
10h-13h: 3hs Step 2. Each group should processes this dataset using their own version of the Klett-Fernald method and compute separately Rayleigh and particle backscattering.
!!! Step 3. Upload of results #1. 13h-14-30h: Lunch
14.30-16h: 1h30 Step 4. Presentation of each group’s methodology: from the molecular calculation to the method of integration. These presentations should be prepared prior to the workshop.
16-16.30h: 30min Step 5. Comparison of calculated particle properties with the simulation input profiles. Discussion should follow.
16:30-17h: 30min Coffee break.
17h-19h: 2h Step 6. Simulation input files will be distributed. Groups should use those
for helping debugging the algorithms and obtaining an improved inversion. Step 7. Upload of results #2.
30min Step 8. Comparison of calculated particle properties with the simulation input profiles. Discussion should follow.
!! Day 2. (Tuesday, March 11th, 2014)
09-09.30h: 30min Step 9. Paper discussion: Bucholtz (1995) and Bodhaine (1999), or, computing the molecular backscattering from first principles.
09:30-11h: 1h30 Step 10. Check the calculation of all molecular quantities in all algorithms; take into account that absolute no difference should occur the same inputs are used. Then it should be checked how the reference height is chosen.
!!! Step 11. Upload of results #4.
11h-11.30: 30min Step 12. Comparison of calculated molecular properties. Discussion
should follow.
11.30-13h: 1h Step 13. Calibration of Lidar signal. Define the use of one single point or a height range to calibrate the Lidar signal.
!!! Step 14. Upload of results #4. 13h-14-30h: Lunch
14:30-15h: 30min Step 15. Comparison of calibrated lidar signals. Discussion should follow.
15h-16h: 1h Step 16. Checked how the reference height is chosen. If the same reference height and the same lidar ratio is used by each user, the output should be almost identical.
!!! Step 17. Upload of results #5. 16h-16.30: 30min Coffee break
16:30-17h: 30min Step 18. Comparison of inverted lidar signals: now we should have same molecular reference, same calibration and same reference height. Discussion should follow.
!! Day 3. (Wednesday, March 12th, 2014)
09:30-13h: 3h Step 19. Time for working on the codes and last intercomparison. Focus on signal processing: background removal, binning, smoothing and gluing.
13h-14-30h: Lunch
14:30-16:30: 2h Step 19. Time for discussing the unified algorithm (or two: matlab and mathematica). Preparation of the codes to be shared via ALINE from the contribution of the groups.
16:30-17h: 30min Coffee break
17h-19h: 2h Step 20. Time for discussing the unified algorithm (or two: matlab and mathematica). Preparation of the codes to be shared via ALINE from the contribution of the groups.
!! Day 4. (Thursday, March 13th, 2014)
09h-19h: All day Step 21. A manuscript will be write with the results. Emphasis will be done due to South America lidar network would be very valuable to contrast northern hemispheric with southern hemispheric aerosol conditions, and the consequences on climate.
13h-14-30h: Lunch
to:
[[Attach:Program_concepcion_2014.pdf|Program Workshop Lidar Inversion March 2014 | PDF]]
Changed lines 5-72 from:
to:
March, 10 to 13, 2014
Lidar researchers representing each Lidar group from the Latin America Lidar Network (ALINE) will participate in the first workshop on Lidar inversion algorithms supported by the Center for Optics and Photonics (CEFOP) of the Universidad de Concepción. Main goal of this first workshop is the establishment of a quantitative Lidar dataset to describe the aerosol vertical, horizontal, and temporal distribution, including its variability on a continental scale. This dataset could be a comprehensive data source to address the four- dimensional spatio-temporal distribution of aerosols on a global scale.
The working days will be held in the Universidad de Concepción, according to the following program:
!! Day 1. (Monday, March 10th, 2014)
09h. Meeting on the hall (first floor) of Faculty of Physical Sciences and Mathematics, Universidad de Concepción, Chile (Calle Esteban Iturra).
09.15-09.45: 30min Step 1. Getting acquainted with the first EARLINET simulation case (Boeckmann et al., Appl. Opt., 2004). File structure, available variables, input format and units will be described. Expected output format and units will be defined for easy comparison.
09:45-10h: Coffe Break
10h-13h: 3hs Step 2. Each group should processes this dataset using their own version of the Klett-Fernald method and compute separately Rayleigh and particle backscattering.
!!! Step 3. Upload of results #1. 13h-14-30h: Lunch
14.30-16h: 1h30 Step 4. Presentation of each group’s methodology: from the molecular calculation to the method of integration. These presentations should be prepared prior to the workshop.
16-16.30h: 30min Step 5. Comparison of calculated particle properties with the simulation input profiles. Discussion should follow.
16:30-17h: 30min Coffee break.
17h-19h: 2h Step 6. Simulation input files will be distributed. Groups should use those
for helping debugging the algorithms and obtaining an improved inversion. Step 7. Upload of results #2.
30min Step 8. Comparison of calculated particle properties with the simulation input profiles. Discussion should follow.
!! Day 2. (Tuesday, March 11th, 2014)
09-09.30h: 30min Step 9. Paper discussion: Bucholtz (1995) and Bodhaine (1999), or, computing the molecular backscattering from first principles.
09:30-11h: 1h30 Step 10. Check the calculation of all molecular quantities in all algorithms; take into account that absolute no difference should occur the same inputs are used. Then it should be checked how the reference height is chosen.
!!! Step 11. Upload of results #4.
11h-11.30: 30min Step 12. Comparison of calculated molecular properties. Discussion
should follow.
11.30-13h: 1h Step 13. Calibration of Lidar signal. Define the use of one single point or a height range to calibrate the Lidar signal.
!!! Step 14. Upload of results #4. 13h-14-30h: Lunch
14:30-15h: 30min Step 15. Comparison of calibrated lidar signals. Discussion should follow.
15h-16h: 1h Step 16. Checked how the reference height is chosen. If the same reference height and the same lidar ratio is used by each user, the output should be almost identical.
!!! Step 17. Upload of results #5. 16h-16.30: 30min Coffee break
16:30-17h: 30min Step 18. Comparison of inverted lidar signals: now we should have same molecular reference, same calibration and same reference height. Discussion should follow.
!! Day 3. (Wednesday, March 12th, 2014)
09:30-13h: 3h Step 19. Time for working on the codes and last intercomparison. Focus on signal processing: background removal, binning, smoothing and gluing.
13h-14-30h: Lunch
14:30-16:30: 2h Step 19. Time for discussing the unified algorithm (or two: matlab and mathematica). Preparation of the codes to be shared via ALINE from the contribution of the groups.
16:30-17h: 30min Coffee break
17h-19h: 2h Step 20. Time for discussing the unified algorithm (or two: matlab and mathematica). Preparation of the codes to be shared via ALINE from the contribution of the groups.
!! Day 4. (Thursday, March 13th, 2014)
09h-19h: All day Step 21. A manuscript will be write with the results. Emphasis will be done due to South America lidar network would be very valuable to contrast northern hemispheric with southern hemispheric aerosol conditions, and the consequences on climate.
13h-14-30h: Lunch
Lidar researchers representing each Lidar group from the Latin America Lidar Network (ALINE) will participate in the first workshop on Lidar inversion algorithms supported by the Center for Optics and Photonics (CEFOP) of the Universidad de Concepción. Main goal of this first workshop is the establishment of a quantitative Lidar dataset to describe the aerosol vertical, horizontal, and temporal distribution, including its variability on a continental scale. This dataset could be a comprehensive data source to address the four- dimensional spatio-temporal distribution of aerosols on a global scale.
The working days will be held in the Universidad de Concepción, according to the following program:
!! Day 1. (Monday, March 10th, 2014)
09h. Meeting on the hall (first floor) of Faculty of Physical Sciences and Mathematics, Universidad de Concepción, Chile (Calle Esteban Iturra).
09.15-09.45: 30min Step 1. Getting acquainted with the first EARLINET simulation case (Boeckmann et al., Appl. Opt., 2004). File structure, available variables, input format and units will be described. Expected output format and units will be defined for easy comparison.
09:45-10h: Coffe Break
10h-13h: 3hs Step 2. Each group should processes this dataset using their own version of the Klett-Fernald method and compute separately Rayleigh and particle backscattering.
!!! Step 3. Upload of results #1. 13h-14-30h: Lunch
14.30-16h: 1h30 Step 4. Presentation of each group’s methodology: from the molecular calculation to the method of integration. These presentations should be prepared prior to the workshop.
16-16.30h: 30min Step 5. Comparison of calculated particle properties with the simulation input profiles. Discussion should follow.
16:30-17h: 30min Coffee break.
17h-19h: 2h Step 6. Simulation input files will be distributed. Groups should use those
for helping debugging the algorithms and obtaining an improved inversion. Step 7. Upload of results #2.
30min Step 8. Comparison of calculated particle properties with the simulation input profiles. Discussion should follow.
!! Day 2. (Tuesday, March 11th, 2014)
09-09.30h: 30min Step 9. Paper discussion: Bucholtz (1995) and Bodhaine (1999), or, computing the molecular backscattering from first principles.
09:30-11h: 1h30 Step 10. Check the calculation of all molecular quantities in all algorithms; take into account that absolute no difference should occur the same inputs are used. Then it should be checked how the reference height is chosen.
!!! Step 11. Upload of results #4.
11h-11.30: 30min Step 12. Comparison of calculated molecular properties. Discussion
should follow.
11.30-13h: 1h Step 13. Calibration of Lidar signal. Define the use of one single point or a height range to calibrate the Lidar signal.
!!! Step 14. Upload of results #4. 13h-14-30h: Lunch
14:30-15h: 30min Step 15. Comparison of calibrated lidar signals. Discussion should follow.
15h-16h: 1h Step 16. Checked how the reference height is chosen. If the same reference height and the same lidar ratio is used by each user, the output should be almost identical.
!!! Step 17. Upload of results #5. 16h-16.30: 30min Coffee break
16:30-17h: 30min Step 18. Comparison of inverted lidar signals: now we should have same molecular reference, same calibration and same reference height. Discussion should follow.
!! Day 3. (Wednesday, March 12th, 2014)
09:30-13h: 3h Step 19. Time for working on the codes and last intercomparison. Focus on signal processing: background removal, binning, smoothing and gluing.
13h-14-30h: Lunch
14:30-16:30: 2h Step 19. Time for discussing the unified algorithm (or two: matlab and mathematica). Preparation of the codes to be shared via ALINE from the contribution of the groups.
16:30-17h: 30min Coffee break
17h-19h: 2h Step 20. Time for discussing the unified algorithm (or two: matlab and mathematica). Preparation of the codes to be shared via ALINE from the contribution of the groups.
!! Day 4. (Thursday, March 13th, 2014)
09h-19h: All day Step 21. A manuscript will be write with the results. Emphasis will be done due to South America lidar network would be very valuable to contrast northern hemispheric with southern hemispheric aerosol conditions, and the consequences on climate.
13h-14-30h: Lunch
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UNIVERSIDAD DE CONCEPCIÓN, CENTRO DE ÓPTICA Y FOTÓNICA
Programa de Financiamiento Basal para Centros Científicos y Tecnológicos de Excelencia -CONICYT
to:
UNIVERSIDAD DE CONCEPCIÓN, CENTRO DE ÓPTICA Y FOTÓNICA \\
Programa de Financiamiento Basal para Centros Científicos y Tecnológicos de Excelencia -CONICYT \\
Programa de Financiamiento Basal para Centros Científicos y Tecnológicos de Excelencia -CONICYT \\
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to:
UNIVERSIDAD DE CONCEPCIÓN, CENTRO DE ÓPTICA Y FOTÓNICA
Programa de Financiamiento Basal para Centros Científicos y Tecnológicos de Excelencia -CONICYT
March, 10 to 13, 2014
Programa de Financiamiento Basal para Centros Científicos y Tecnológicos de Excelencia -CONICYT
March, 10 to 13, 2014
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!! UNIVERSIDAD DE CONCEPCIÓN, CENTRO DE ÓPTICA Y FOTÓNICA
!! Programa de Financiamiento Basal para Centros Científicos y Tecnológicos de Excelencia -CONICYT
!! March, 10 to 13, 2014
!! Programa de Financiamiento Basal para Centros Científicos y Tecnológicos de Excelencia -CONICYT
!! March, 10 to 13, 2014
to:
!!! UNIVERSIDAD DE CONCEPCIÓN, CENTRO DE ÓPTICA Y FOTÓNICA
!!! Programa de Financiamiento Basal para Centros Científicos y Tecnológicos de Excelencia -CONICYT
!!! March, 10 to 13, 2014
!!! Programa de Financiamiento Basal para Centros Científicos y Tecnológicos de Excelencia -CONICYT
!!! March, 10 to 13, 2014
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March, 10 to 13, 2014
to:
!! UNIVERSIDAD DE CONCEPCIÓN, CENTRO DE ÓPTICA Y FOTÓNICA
!! Programa de Financiamiento Basal para Centros Científicos y Tecnológicos de Excelencia -CONICYT
!! March, 10 to 13, 2014
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(:Title I Workshop on Lidar Inversion Algorithms-ALINE Concepción, Chile :)
March, 10 to 13, 2014
March, 10 to 13, 2014