Antonio Ruiz-Verdú (1) *, Sampsa Koponen (2) , Thomas Heege (3) , Roland Doerffer (4) , Carsten Brockmann (5) , Kari Kallio (6) , Timo Pyhälahti (6) , Ramón Peña (1) , Ángel Polvorinos (7) , Jörg Heblinski (3) , Pasi Ylöstalo (6) , Laura Conde (1) , Daniel Odermatt (8) , Victor Estellés (9) and Jouni Pulliainen (10) DEVELOPMENT OF MERIS LAKE WATER ALGORITHMS: VALIDATION RESULTS FROM EUROPE * Currently at: INTA (Spain) E-mail [email protected]2nd MERIS/(A)ATSR User Workshop. 22-26 September 2008 ESA/ESRIN (1) Centre for Hydrographic Studies - CEDEX (2) Helsinki University of Technology (TKK) (3) EOMAP GmbH & Co.KG (4) GKSS Forschungszentrum Geesthacht (5) Brockmann Consult (6) Finnish Environment Institute (SYKE), (7) University of Sevilla, (8) University of Zurich - Irchel, (9) University of Valencia, (10) Finnish Meteorological Institute (FMI),
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DEVELOPMENT OF MERIS LAKE WATER ALGORITHMS ...earth.esa.int/workshops/meris_aatsr2008/participants/475/...Algorithm overview 3. Validation campaigns 4. Validation results 5. Conclusions
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Antonio Ruiz-Verdú(1) *,Sampsa Koponen(2), Thomas Heege(3), Roland Doerffer(4), Carsten Brockmann(5),
Kari Kallio(6), Timo Pyhälahti(6), Ramón Peña(1), Ángel Polvorinos(7),Jörg Heblinski(3), Pasi Ylöstalo(6), Laura Conde(1), Daniel Odermatt(8),
Victor Estellés(9) and Jouni Pulliainen(10)
DEVELOPMENT OF MERIS LAKE WATER ALGORITHMS: VALIDATION RESULTS FROM EUROPE
2nd MERIS/(A)ATSR User Workshop. 22-26 September 2008 ESA/ESRIN
(1) Centre for Hydrographic Studies - CEDEX (2) Helsinki University of Technology (TKK)(3) EOMAP GmbH & Co.KG(4) GKSS Forschungszentrum Geesthacht(5) Brockmann Consult(6) Finnish Environment Institute (SYKE), (7) University of Sevilla, (8) University of Zurich - Irchel, (9) University of Valencia, (10) Finnish Meteorological Institute (FMI),
2nd MERIS/(A)ATSR User Workshop. 22-26 September 2008 ESA/ESRIN
OUTLINE
1. Introduction
2. Algorithm overview
3. Validation campaigns
4. Validation results
5. Conclusions
2nd MERIS/(A)ATSR User Workshop. 22-26 September 2008 ESA/ESRIN
1. Introduction
ESA ITT: Development of MERIS Lake Water Algorithms(“MERIS LAKES”). January 2007 – June 2008
WQ constituents: Chl-a (HPLC or spectrophotometric), TSM (gravimetric), CDOM (spectrophotometric)
Atmosphere: Cimel 318NE in situ; Aeronet
2nd MERIS/(A)ATSR User Workshop. 22-26 September 2008 ESA/ESRIN
3. Validation results
ATMOSPHERIC CORRECTION
Two products were validated with in situ data:
ICOL (Improved Contrast between Ocean and Land)Correction method for the Adjacency EffectNot yet released as a Beam plug-inSanter R., Zagolski F., and Gilson M. (2007). Université du
Littoral, France, ICOL ATBD, Version 0.1, Feb. 28, 2007.
L1 L_TOA NN AC R_Lw
L1 L_TOA ICOL R_LwNN AC(Pre-processedwith ICOL)
2nd MERIS/(A)ATSR User Workshop. 22-26 September 2008 ESA/ESRIN
4. Validation results
ATMOSPHERIC CORRECTION
400
450
500
550
600
650
700
0.0000
0.0005
0.0010
0.0015
0.0020
0.0025
0.0030
0.0035
0.0040
Station LA April 13 2007, Lake Constance
RS
Ref
lect
ance
(+0)
wavelength [nm]
C2R v125, 9 pixels ICOL C2R, 9 pixels RAMSES radiometer
IZNÁJAR, STATION A, 2007-07-04
0.000
0.002
0.004
0.006
0.008
0.010
0.012
0.014
0.016
400 500 600 700 800 900Wavelength (nm)
RLw
(sr-
1)
IN SITUEULICOL+EUL
LAKE CONSTANCELAKE CONSTANCE((GermanyGermany))
IZNIZNÁÁJAR RESERVOIRJAR RESERVOIR((SpainSpain))
2nd MERIS/(A)ATSR User Workshop. 22-26 September 2008 ESA/ESRIN
2nd MERIS/(A)ATSR User Workshop. 22-26 September 2008 ESA/ESRIN
(1) Centre for Hydrographic Studies - CEDEX (2) Helsinki University of Technology (TKK)(3) EOMAP GmbH & Co.KG(4) GKSS Forschungszentrum Geesthacht(5) Brockmann Consult(6) Finnish Environment Institute (SYKE), (7) University of Sevilla, (8) University of Zurich - Irchel, (9) University of Valencia, (10) Finnish Meteorological Institute (FMI),