Natalia Kouremeti, Julian Gröbner, Ricco Soder, Pascal ...
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ATMOZ Workshop 01.Jun 2017 El-Arenosillo Natalia Kouremeti, Julian Gröbner, Ricco Soder, Pascal Schlatter, Patrik Langer Marek Smid, Geiland Porrovechio Meelis-Mait Sildoja, Saulius Nevas
Transcript of Natalia Kouremeti, Julian Gröbner, Ricco Soder, Pascal ...
ATMOZ Workshop 01.Jun 2017 El-Arenosillo
Natalia Kouremeti, Julian Gröbner, Ricco Soder, Pascal Schlatter, Patrik Langer
Marek Smid, Geiland Porrovechio
Meelis-Mait Sildoja, Saulius Nevas
Objectives of the new Direct Irradiance Spectroradiometer
Retrieval of total column of Ozone
• CCD based Spectrometer
• High resolution (better than 0.3 nm FWHM) over the UV-Vis range
• “Oversampling” more than 3 pixels within the FWHM
• High Sensitivity & Signal to Noise Ratio in UV
• Absolute Stability - AOD
Optical Design Czerny-Turner design
Optical ElementsOff -Axis Parabolic Mirror
FL 125mm & 30o (40x40mm)
Grating
1800 lines/mm (44x44mm)
Custom made Spherical Mirror
FL 110mm (65x50mm)
Entrance Slit 60x1000 μm
Detector Length 24.567mm
Rotation Min Wavelength
(nm)Maximum
Wavelength (nm)Imaged Wavelengths
(nm)linear step nm/pixel
FWHM (nm)Pixels within the
FWHM
UV -3.0 295.0 386.8 91.8 0.045 0.25±0.02 5.6
Vis 1.7 376.0 460.3 84.3 0.041 0.25±0.03 6.1
Vis (O4 & H2O)
15.6 600.0 660.0 60.0 0.029 0.21 to 0.31 7-10
NIR (O2) 25.5 740.0 790.0 45.0 0.020 0.17 to 0.32 10-15
Maximum 35.0 852.0 873.3 21.3 0.010 0.13 to 0.70 Up to 100
ATMOZ Spectroradiometer: ERMIS
Detector: Hamamatsu cooled to -20oC - 3 stage cooling
S101411108-OS4 2048x256 pixels
S101411109-OS4 2048x506 pixels
Entrance Slit: 60x1000 μm
Grating : 1800 lines/mm
Spherical Mirror: FL 110mm
FL 100mm
Off -Axis Parabolic Mirror
FL 125mm & 30o
ATMOZ SPECTRORADIOMETER: ERMIS
Telescope - FOV ~1o
Optical Fiber
Converging &
Focusing Lenses
2 Filter Wheels
• ND filters
• Spectral Filters
• 400nm
• UV340
• UG11
Spectrometer Casing & Electronics
filled with N2 and pressurized to 1.5 bars
to avoid condensation on the detector
and deterioration of the optical
components
ERMIS Characterization
• Line Spread Functions – ATLAS System
• Wavelength Calibration
• In range Stray Light Contribution
• Direct irradiance Calibration
ERMIS current version
Five Selected Position Of the Grating covering the spectral range 294-670 nm
ERMIS Line Spread Functions - GP1: 295 – 390nm
200 400 600 800 1000 1200 1400 1600 1800 200010
-7
10-6
10-5
10-4
10-3
10-2
10-1
100
pixel
LS
F
295
300
305
310
315
320
325
325
330
335
340
345
350
355
360
360
363
365
370
375
380
385
388
390
200 205 210 215 220 2250
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
pixel
LS
F
ERMIS Line Spread Functions
300 350 400 450 500 550 600 6500.15
0.2
0.25
0.3
wavelength (nm)
FW
HM
(n
m)
GP#1 : 294 - 390 nm GP#2 : 375 - 462 nm GP#3 : 459 - 539 nm GP#4 : 535 - 606 nm GP#5 : 599 - 661 nm
300 350 400 450 500 550 600 650
10-1
100
101
wavelength (nm)
Sig
na
l (c
pm
s)
O3
NO2HCHO
O4
H2O
Direct Irradiance Test Scan
Ozone Retrieval Method
QDOAS algorithm - BIRA
Izaña Dataset
• Spectral Range 310-325 nm
• ETS : env03_cosi_kittpeak_Thullier
• O3 cross section : Bass & Paur
Davos Dataset
• Spectral Range 315-330 nm
• ETS : Kuruz
• O3 cross section : Bremen 228K
ERMIS Deployment
ATMOZ campaign September - October 2016, Izaña – Tenerife
Davos PMOD/WRC March - May 2017
El Arenosillo RBCC-E XII now
ATMOZ campaign September - October 2016, Izana – Tenerife
ERMIS – Version 1
254 256 258 260 262 264 266 268 270 272250
260
270
280
290
300
310
320
Day of Year
Ozo
ne (
DU
)
ERMIS
QASUME
-15 -10 -5 0 5 10 150
5
10
15
20
25
30
35
40
45
O3 Difference (DU) [ERMIS - QASUME]
Dis
trib
utio
n (
%)
Normal Distribution Fit
=-2.512 DU
=2.748 DU
Davos
ERMIS – Version 2
70 75 80 85 90 95 100 105 110 115280
300
320
340
360
380
400
420
Day Of Year
Ozo
ne
(D
U)
DAVOS Period : 15-Mar to 20-Apr-2017
-40 -30 -20 -10 0 10 20 30 400
5
10
15
20
25
30
O3 Difference (DU) [ERMIS - Brewer]
Dis
trib
utio
n (%
)
Normal Distribution Fit
=-0.390 DU
=4.880 DU
1 1.5 2 2.5 3 3.5 4 4.50
1
2
3
4
5
6
7
8
9
10
ozone air mass
Re
triv
al R
esid
ua
ls (
%)
Izana
Davos
Absolute & Wavelength Stability
ULS2 - PTB
200 400 600 800 1000 1200 1400 1600 1800 2000-1
0
1
2
3
pixel
Sig
na
l (c
pm
s)
200 400 600 800 1000 1200 1400 1600 1800 20000
1
2
3
pixel
ST
D(%
)
21-Sep-2016 13:59:43
22-Sep-2016 14:43:46
22-Sep-2016 21:13:24
23-Sep-2016 12:13:30
22-Sep-2016 21:33:29
200 400 600 800 1000 1200 1400 1600 1800 20000.9
0.95
1
1.05
1.1
pixel
Ra
tio
to
m
ed
ian
100 200 300 400 500 600 700 800 900 1000
0.94
0.96
0.98
1
1.02
1.04
1.06
pixel
Ratio t
o m
ean
24.05.17 11:05
30.05.17 14:23
31.05.17 15:03
200 400 600 800 1000 1200 1400 1600 1800 20000.4
0.6
0.8
1
1.2
1.4
1.6
1.8
pixel
Ra
tio
to
me
an
14.03.17 12:33
20.03.17 12:30
29.03.17 13:07
30.03.17 14:04
09.04.17 13:30
10.04.17 14:50
14.04.17 12:37
14.04.17 13:09
15.05.17 13:5915.05.17 14:30
17.05.17 13:29
300 310 320 330 340 350 360 370 3800
0.2
0.4
0.6
0.8
1
1.2
1.4
wavelength(nm)
Sig
na
l (c
pm
s)
Future Work
• Improve of the absolute stability
• Ozone Retrieval
Temperature – Calibration
• Retrievals in the Visible
Hardware modifications
• Telescope
• Increase the Sensitivity of ERMIS
• Stability of wavelength
ERMIS
Physikalisch-Meteorologisches Observatorium Davos, World Radiation Center, Davos, Switzerland
Comparison to QASUME
310 320 330 340 350 360 370 380 3900.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
wavelength (nm)
Ra
tio
ER
MIS
/QA
SU
ME
Comparison to QASUME
300 310 320 330 340 350 360 370 380 390 40010
-4
10-3
10-2
10-1
100
101
267
8.50024
8.75025
9.00025
9.25026
9.50025
9.75024
10.0003
10.2502
10.5002
10.7503
11.0002
11.2502
11.5003
QASUME
Line Spread Functions
measurement on 28.08.2016
First Version Problems
• Back reflection from the detector
• Reflections on the walls for wavelengths longer than 394 nm
• OUT OF RANGE STRAY LIGHT - Low pass Filter – 400nm
•
0 200 400 600 800 1000 1200 1400 1600 1800 200010
-6
10-5
10-4
10-3
10-2
10-1
100
pixel
LS
F
0 200 400 600 800 1000 1200 1400 1600 1800 200010
-5
10-4
10-3
10-2
10-1
100
101
102
pixel
Sig
na
l (c
pm
s)
401
402
403
404
410
420
430
440
450
460
470
480
490
520
540
560
580
600
620
640
660
680
700
720
740
760
780
800
820
840
860
880
900
920
940
960
980
1000
The EMRP is jointly funded by the EMRP participating
countries within EURAMET and the European Union
“Comparison” to QASUME
-0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.60.985
0.99
0.995
1
1.005
1.01
1.015
Brige Temp. (oC)
Rati
o t
o
mean
of
100m
ean
10
30
100
200
300
400
500
600
700
800
900
1000
1200
1500
1800
2100
2400
2700
3000
3400
4000
4300
4600
4900
5900
6000
-2 -1.5 -1 -0.5 0 0.5 10.9
0.92
0.94
0.96
0.98
1
1.02
1.04
Brige Temp. (oC)
Rati
o t
o E
nd
Of
Day S
can
10
30
100
200
300
400
500
600
700
800
900
1000
1200
1500
1800
2100
2400
2700
3000
3400
4000
4300
4600
4900
5900
6000
Vertical Alignment
ATLAS Wavelength Scan
Horizontal Pixels
Ve
rtic
al P
ixe
ls
200 400 600 800 1000 1200 1400 1600 1800 2000150
200
250
300
350
400
450
290 300 310 320 330 340 350 360 370 380 3900
5
10
15
20
25
30
35
40
45
50
pixel
Str
ay L
igh
t C
orr
ectio
n (
%)
ERMIS
fit
fit + 20 px
fit + 40 px
fit + 60 px
fit + 80 px
fit + 100 px
fit + 120 px
data- Single Gaussian fit
data- Best Gausian fit
290 300 310 320 330 340 350 3600
1000
2000
3000
wavelength(nm)
Str
ay L
igh
t
Co
rrecte
d S
ign
al
(co
un
ds)
Theoritical
STRLC measurement
clear
300 310 320 330 340 350 360 370 380 3900
2
4
6
8
10
12
14
16
18
20
Wavelength(nm)
Ou
t o
f R
an
ge S
tray L
igh
t C
on
trib
uti
on
(%
)
Calibration
290 300 310 320 330 340 350 360 370 380 390-2000
0
2000
4000
6000
8000
10000
wavelength (nm)
Resp
on
se F
un
cti
on
(Co
un
ts/[
W.m
-2.n
m-1
])
ERMIS Calibration
Lamp: F323,Distrance = 2958.4 mm
290 300 310 320 330 340 350 360 370 380 3900
1
2
3
4
Wavelength (nm)Un
cert
ain
ty i
n R
esp
on
se (
% ,
1sig
ma)
Repetability (std/mean)/sqrt(N))
Distance (5mm for 100th percentile)
Smoothing
Irradiance - PTD
Total
290 300 310 320 330 340 350 360 370 380 390-3
-2
-1
0
1
2
3
Wavelength (nm)
Resp
on
se R
ati
o
Direct Irradiance
300 310 320 330 340 350 360 370 380 3900
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
wavelength (nm)
Dir
ect Ir
ad
ian
ce
(W
/nm
/m2
)
-84.4
-73.9
-66.8
-59.2
-51.1
-44.2
-38.0
-32.5
-27.9
-24.7
23.7
24.9
28.2
32.8
38.2
44.7
SZA(deg)
-100 -80 -60 -40 -20 0 20 40 600
500
1000
1500
2000
2500
3000
3500
4000
SZA
Dir
ect Ir
ad
ian
ce
(cp
ms)
343.16 nm - 10-Sep-2016
0
5
10
13
20
Blooming Effect
925 930 935 940 945 950
100
101
102
pixel
Sig
na
l (c
pm
s)
0.5 1 1.5 2 2.5 3 3.5 4 4.5
x 107
0.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
2.6
2.8
Cumulative Raw Signal (counts)
Ra
tio
of S
ign
al (c
pm
s)
ITi/IT
j
200 ms / 100 ms
300 ms / 200 ms
400 ms / 300 ms
500 ms / 400 ms
600 ms / 500 ms
700 ms / 600 ms
800 ms / 700 ms
900 ms / 800 ms
1000 ms / 900 ms
1st pixel
2nd
Pixel - IT(ms)
925 930 935 940 945
1
2
3
4
5
6
x 104
pixel
Sig
na
l (c
ou
nts
)
100
200
300
400
500
600
700
800
900
1000
IT(ms)
Comparison to QASUME
300 310 320 330 340 350 360 370 380 390 40010
-4
10-3
10-2
10-1
100
101
257
10.3336
10.6669
11.0002
11.3336
11.6669
12.0002
12.3336
12.6669
13.0003
13.3336
14.0002
14.3336
14.6669
15.0002
15.3336
15.6669
16.0003
16.3451
16.7502
17.0003
17.2502
17.5003
17.7503
18.0002
18.2502
18.5003
18.7503
19.0002
QASUME
Comparison to QASUME
300 310 320 330 340 350 360 370 380 390 40010
-4
10-3
10-2
10-1
100
101
259
8.50024
8.75023
9.00025
9.25024
9.50023
9.75025
10.0002
10.2502
10.5003
10.7502
11.0002
11.2502
11.5002
11.7502
12.0003
12.2502
12.5002
12.7503
13.0002
13.2502
13.5003
13.7502
14.0002
14.2503
14.5002
14.7502
15.0002
15.2502
15.5002
15.7503
16.0003
16.2502
16.5003
16.7503
17.0002
17.2503
17.5003
QASUME
Comparison to QASUME
300 310 320 330 340 350 360 370 380 390 40010
-4
10-3
10-2
10-1
100
101
261
8.50026
8.75025
9.00025
9.25026
9.50024
9.75023
10.0003
10.2502
10.5002
10.7503
11.0002
11.2502
11.5003
11.7502
12.0002
12.2503
12.5002
12.7502
14.7503
15.0002
15.2502
15.5003
15.7502
16.0002
16.2503
16.5003
16.7502
17.0003
17.2503
17.5002
QASUME
Comparison to QASUME
300 310 320 330 340 350 360 370 380 390 40010
-4
10-3
10-2
10-1
100
101
263
8.50025
8.75026
9.00025
9.25024
9.50026
9.75025
10.0002
10.2503
10.5002
10.7502
11.0003
11.2502
11.5002
11.7502
12.0002
12.2502
12.7502
13.0002
13.2502
13.5002
13.7503
14.0002
14.2502
14.5002
14.7502
15.0002
15.2502
15.5002
15.7503
16.0003
16.2502
16.5003
16.7503
17.0003
17.2503
17.5003
QASUME
Comparison to QASUME
300 310 320 330 340 350 360 370 380 390 40010
-4
10-3
10-2
10-1
100
101
264
8.50026
8.75025
9.00024
9.25026
9.50026
9.75025
10.0003
10.2502
10.5002
10.7503
11.0002
11.2502
11.5003
11.7502
12.2502
12.5002
12.7502
13.0002
13.4968
14.0002
14.2502
14.5002
14.7503
15.0002
15.2502
15.5002
15.7502
16.0002
16.2503
16.5003
16.7502
17.0003
17.2503
QASUME
Comparison to QASUME
300 310 320 330 340 350 360 370 380 390 40010
-4
10-3
10-2
10-1
100
101
265
8.50025
8.75024
9.00027
9.25025
9.50024
9.75026
10.0002
10.2502
10.5003
10.7502
11.0002
11.2503
11.5002
11.7502
12.0002
12.2502
12.5002
14.2502
14.5002
14.7502
15.0002
15.2503
15.5002
15.7502
16.0003
16.2503
16.5002
16.7503
17.0002
17.2502
QASUME
Comparison to QASUME
300 310 320 330 340 350 360 370 380 390 40010
-4
10-3
10-2
10-1
100
101
266
8.50024
8.75026
9.00025
9.25025
9.50026
9.75025
10.0002
10.2503
10.5002
11.5443
11.8336
12.1669
12.5003
12.8336
13.2505
13.7502
14.0002
15.7503
16.0002
16.5003
16.7503
17.0002
17.2503
QASUME
Comparison to QASUME
310 320 330 340 350 360 370 380 3900.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
wavelength (nm)
Ra
tio
ER
MIS
/QA
SU
ME
Comparison to QASUME
257 258 259 260 261 262 263 264 265 266 267
0.85
0.9
0.95
1
1.05
1.1
1.15
320 nm 1nm
330 nm 1nm
340 nm 1nm
349 nm 1nm
370 nm 1nm
390 nm 1nm
Comparison to QASUME
300 310 320 330 340 350 360 370 380 390 40010
-4
10-3
10-2
10-1
100
101
267
8.50024
8.75025
9.00025
9.25026
9.50025
9.75024
10.0003
10.2502
10.5002
10.7503
11.0002
11.2502
11.5003
QASUME
Ozone (UG11,BB, no stray light, single spec retrieval )
Comparison to QASUME (BB )
6 8 10 12 14 16 18 20260
270
280
290
300
310
320
330
254 256 258 260 262 264 266 268 270 272260
270
280
290
300
310
320
330
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
