Généralités
24
Avec :
í µí± í µí±í µí± (í µí¼ ) = max (í µí± í µí±í µí± (í µí¼ )).
í µí± Représentent les coefficients des algorithmes
Tableau 1.6. Algorithmes et coefficients de l'estimation de la chlorophylle
Algorithmes
Capteur
Bleu
Vert
a0
a1
a2
a3
a4
NASA ( https://oceancolor.gsfc.nasa.gov/atbd/chlor_a/)
OC4E
MERIS/OLCI
443>490>510
560
0.3255
-2.7677
2.4409
-1.1288
-0.4990
OC3M
MODIS
443>488
547
0.2424
-2.7423
1.8017
0.0015
-1.2280
OC2M
MODIS
488
547
0.2500
-2.4752
1.4061
-2.8233
0.5405
OC2M-HI
MODIS (500-m)
469
555
0.1464
-1.7953
0.9718
-0.8319
-0.8073
OC2
OLI
482
561
0.1977
-1.8117
1.9743
-2.5635
-0.7218
OC3
OLI
443>482
561
0.2412
-2.0546
1.1776
-0.5538
-0.4570
(O’Reilly & Werdell, 2019)
OC3
MODIS
443>488
554
0.26294
-2.64669
1.28364
1.08209
-1.76828
OC4
MODIS
412>442>488
554
0.27015
-2.47936
1.53752
-0.13967
-0.66166
OC5
MODIS
412>442>488>531
554
0.42919
-4.88411
9.57678
-9.24289
2.51916
OC6
MODIS
412>443>490>510
554 & 667
1.22914
-4.99423
5.64706
-3.53426
0.69266
OC3
OLI
443>482
561
0.30963
-2.40052
1.28932
0.52802
-1.33825
OC4
OLCI
443>490>510
560
0.42540
-3.21679
2.86907
-0.62628
-1.09333
OC5
OLCI
413>443>490>510
560
0.43213
-03.13001
3.05479
-1.45176
-0.24947
OC6
OLCI
413>443>490>510
560 & 665
0.95039
-3.05404
2.17992
-1.12097
0.15262
24
Avec :
í µí± í µí±í µí± (í µí¼ ) = max (í µí± í µí±í µí± (í µí¼ )).
í µí± Représentent les coefficients des algorithmes
Tableau 1.6. Algorithmes et coefficients de l'estimation de la chlorophylle
Algorithmes
Capteur
Bleu
Vert
a0
a1
a2
a3
a4
NASA ( https://oceancolor.gsfc.nasa.gov/atbd/chlor_a/)
OC4E
MERIS/OLCI
443>490>510
560
0.3255
-2.7677
2.4409
-1.1288
-0.4990
OC3M
MODIS
443>488
547
0.2424
-2.7423
1.8017
0.0015
-1.2280
OC2M
MODIS
488
547
0.2500
-2.4752
1.4061
-2.8233
0.5405
OC2M-HI
MODIS (500-m)
469
555
0.1464
-1.7953
0.9718
-0.8319
-0.8073
OC2
OLI
482
561
0.1977
-1.8117
1.9743
-2.5635
-0.7218
OC3
OLI
443>482
561
0.2412
-2.0546
1.1776
-0.5538
-0.4570
(O’Reilly & Werdell, 2019)
OC3
MODIS
443>488
554
0.26294
-2.64669
1.28364
1.08209
-1.76828
OC4
MODIS
412>442>488
554
0.27015
-2.47936
1.53752
-0.13967
-0.66166
OC5
MODIS
412>442>488>531
554
0.42919
-4.88411
9.57678
-9.24289
2.51916
OC6
MODIS
412>443>490>510
554 & 667
1.22914
-4.99423
5.64706
-3.53426
0.69266
OC3
OLI
443>482
561
0.30963
-2.40052
1.28932
0.52802
-1.33825
OC4
OLCI
443>490>510
560
0.42540
-3.21679
2.86907
-0.62628
-1.09333
OC5
OLCI
413>443>490>510
560
0.43213
-03.13001
3.05479
-1.45176
-0.24947
OC6
OLCI
413>443>490>510
560 & 665
0.95039
-3.05404
2.17992
-1.12097
0.15262
