stanbul 2004
S. Fassnacht,
area index,
| ecosystems.
an and J. J.
lite Signal in
. 218 pp
MODIS land
logy: level 2
1324-1338
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXX V, Part B7. Istanbul 2004
] Identification of fields on image & ground
PAN+LISS
merge image
DA
LISS III data
Lmaxı Lmins Eo Ins
TOA reflectance image
6S code ]
' Atmospherically corrected
reflectance image
Atmospheric
measurements
AOT, WV
LICOR-2000
LAI measurements Canopy Analyzer
Synchronous Field Campaign
Microtops II
Sunphotometer
NDVI image
NDVI-LAI empirical
model
LAI image
Fine resolution
1 km MODIS LAI
product
Figure 1. Procedure describing retrieval of LAI from IRS
LISS-III data and its comparison with MODIS LAI product
Comparison of LAT
products
Bhopal (24 Dec. 2001) |
NDVI
€ Aimospherically corrected
A Atmos phericaly uncorrected
| 0 1
|
|
; |
: |
LA ?
3
i
Figure 2. Relationship of ground measured LAI on wheat
fields with IRS LISS-III derived NDVI
£e
JF ia
124
yes
HEIST
uli pr
ZXY"UTM
AX
zou
1 EN
2:51 03 LAI
Figure3. (a) LAI map retrieved from LISS-III Bhopal site, 24
December 2001. (b) MODIS LAI product, 8-day composite
(19-26 December 2001)
6.9
149
&
iri
ide
FA
TE
PYRE rry
HB
STEW
H2iF7
mr
"SET
am
TI"
i
set
m a
3.28
6.5
0.0 LAI
Figure 4. (a) LAI map retrieved from LISS-III Bhopal site,
12 February 2002. (b) MODIS LAI product, 8-day composite
(10-17 February 2002)
y 2 1.1644x * 0.5712
= 0.7478x + 0.6814
R? = 0.5233 y x
R? = 0.5135
a |b ; K |
9
"t 6 e^
^ ^
^ 5 2
3 . 3
i * ad 4 e
E vr o id
ia C 3
Ne] o
= =, e
*
y = 2.498x + 0.434 1 *y = 1.9874x + 0.419€
R? - 0.6188 2 Re = 0.6106
0.4.2 8 4 8.5 7 o 45 13504 5% 5
LISS-3 LAI LISS-3 LAI
C "d,
2.5 re [|
et. + ^
2 z^ | E 27
^ | | 3 ^^
e n ;
5 15 | 13
2 | | o 2
o 1 | B
z | |o
| iz
| |
i
|
0 1 2 3
LISS-3 LAI
B LISS-3 LAI
Figure 5. Comparison of LISS-III LAI and MODIS LAI over
Bhopal site. (a) 24 Dec. 2001 (b) 12 Feb.2002 and over
Indore site. (c) 2 Dec. 2001 (d) 27 Dec. 2001
