aboveground net primary productivity estimation of pampa grasslands using modis and goes data piedad...
TRANSCRIPT
![Page 1: Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data Piedad Cristiano & María Eugenia Beget INTA & CONICET– Buenos](https://reader035.vdocument.in/reader035/viewer/2022070403/56649f295503460f94c4316c/html5/thumbnails/1.jpg)
Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data
Piedad Cristiano & María Eugenia Beget
INTA & CONICET– Buenos Aires - Argentina
![Page 2: Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data Piedad Cristiano & María Eugenia Beget INTA & CONICET– Buenos](https://reader035.vdocument.in/reader035/viewer/2022070403/56649f295503460f94c4316c/html5/thumbnails/2.jpg)
Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data
NPP = APAR x RUE
PAR x fPAR
Kumar & Monteith 1982
Efficiency Model
ANPP maps of Pampa Region will be generated monthly to supply farmers, cooperative associations and government decision makers to provide a useful tool for the development of their activities optimally.
![Page 3: Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data Piedad Cristiano & María Eugenia Beget INTA & CONICET– Buenos](https://reader035.vdocument.in/reader035/viewer/2022070403/56649f295503460f94c4316c/html5/thumbnails/3.jpg)
Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data
RUE_*.tif NDVI_*.tif PAR_*.tif
NDVI _*.mpr PAR _*.mpr
Convert toILWIS format
NDVI _*.mpr PAR _*.mpr
Subset tostudy area
Change pixelsize/study area
fPAR _*.mpr
(1+NDVI)/(1-NDVI)
4.05
If fPAR ≥ 0
If fPAR ≥ 0.95 fPAR = 0
No
Yes
fPAR = 0.95
fPAR _*.mpr
Yes
No
APAR _*.mpr
fPAR x PAR
RUE x APAR
ANPP_*.mpr ∑ month ANPP1
12annualANPP_*.mpr
P R
E P
R O
C E
S S
I N
GD
A T
A
A
N A
L Y
S I
S
(1)
(2) (4)
(5)
(6)
(7)
- 0.2666
(8)
(9)
(10)
RUE_*.mpr
Change pixelsize/study area
RUE_*.mpr
(3)
Particular objective of
this exercise is to
compute annual ANPP
for 2007.
![Page 4: Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data Piedad Cristiano & María Eugenia Beget INTA & CONICET– Buenos](https://reader035.vdocument.in/reader035/viewer/2022070403/56649f295503460f94c4316c/html5/thumbnails/4.jpg)
Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data
RUE_*.tif NDVI_*.tif PAR_*.tif
NDVI _*.mpr PAR _*.mpr
Convert toILWIS format
NDVI _*.mpr PAR _*.mpr
Subset tostudy area
Change pixelsize/study area
fPAR _*.mpr
(1+NDVI)/(1-NDVI)
4.05
If fPAR ≥ 0
If fPAR ≥ 0.95 fPAR = 0
No
Yes
fPAR = 0.95
fPAR _*.mpr
Yes
No
APAR _*.mpr
fPAR x PAR
RUE x APAR
ANPP_*.mpr ∑ month ANPP1
12annualANPP_*.mpr
P R
E
P R
O C
E S
S I
N G
D A
T A
A
N A
L Y
S I
S
(1)
(2) (4)
(5)
(6)
(7)
- 0.2666
(8)
(9)
(10)
RUE_*.mpr
Change pixelsize/study area
RUE_*.mpr
(3)
c:\ILWIS\gdal_translate.exe -of ILWIS C:\DevCoCast_15\rue_autwin.tif C:\DevCoCast_15\rue_autwin.mpr
Pre-processing
![Page 5: Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data Piedad Cristiano & María Eugenia Beget INTA & CONICET– Buenos](https://reader035.vdocument.in/reader035/viewer/2022070403/56649f295503460f94c4316c/html5/thumbnails/5.jpg)
Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data
RUE_*.tif NDVI_*.tif PAR_*.tif
NDVI _*.mpr PAR _*.mpr
Convert toILWIS format
NDVI _*.mpr PAR _*.mpr
Subset tostudy area
Change pixelsize/study area
fPAR _*.mpr
(1+NDVI)/(1-NDVI)
4.05
If fPAR ≥ 0
If fPAR ≥ 0.95 fPAR = 0
No
Yes
fPAR = 0.95
fPAR _*.mpr
Yes
No
APAR _*.mpr
fPAR x PAR
RUE x APAR
ANPP_*.mpr ∑ month ANPP1
12annualANPP_*.mpr
P R
E
P R
O C
E S
S I
N G
D A
T A
A
N A
L Y
S I
S(1)
(2) (4)
(5)
(6)
(7)
- 0.2666
(8)
(9)
(10)
RUE_*.mpr
Change pixelsize/study area
RUE_*.mpr
(3)
Pre-processing
Using ILWIS tools
![Page 6: Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data Piedad Cristiano & María Eugenia Beget INTA & CONICET– Buenos](https://reader035.vdocument.in/reader035/viewer/2022070403/56649f295503460f94c4316c/html5/thumbnails/6.jpg)
Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data
RUE_*.tif NDVI_*.tif PAR_*.tif
NDVI _*.mpr PAR _*.mpr
Convert toILWIS format
NDVI _*.mpr PAR _*.mpr
Subset tostudy area
Change pixelsize/study area
fPAR _*.mpr
(1+NDVI)/(1-NDVI)
4.05
If fPAR ≥ 0
If fPAR ≥ 0.95 fPAR = 0
No
Yes
fPAR = 0.95
fPAR _*.mpr
Yes
No
APAR _*.mpr
fPAR x PAR
RUE x APAR
ANPP_*.mpr ∑ month ANPP1
12annualANPP_*.mpr
P R
E
P R
O C
E S
S I
N G
D A
T A
A
N A
L Y
S I
S
(1)
(2) (4)
(5)
(6)
(7)
- 0.2666
(8)
(9)
(10)
RUE_*.mpr
Change pixelsize/study area
RUE_*.mpr
(3)
Pre-processing
Using ILWIS tools
![Page 7: Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data Piedad Cristiano & María Eugenia Beget INTA & CONICET– Buenos](https://reader035.vdocument.in/reader035/viewer/2022070403/56649f295503460f94c4316c/html5/thumbnails/7.jpg)
RUE_*.tif NDVI_*.tif PAR_*.tif
NDVI _*.mpr PAR _*.mpr
Convert toILWIS format
NDVI _*.mpr PAR _*.mpr
Subset tostudy area
Change pixelsize/study area
fPAR _*.mpr
(1+NDVI)/(1-NDVI)
4.05
If fPAR ≥ 0
If fPAR ≥ 0.95 fPAR = 0
No
Yes
fPAR = 0.95
fPAR _*.mpr
Yes
No
APAR _*.mpr
fPAR x PAR
RUE x APAR
ANPP_*.mpr ∑ month ANPP1
12annualANPP_*.mpr
P R
E
P R
O C
E S
S I
N G
D A
T A
A
N A
L Y
S I
S
(1)
(2) (4)
(5)
(6)
(7)
- 0.2666
(8)
(9)
(10)
RUE_*.mpr
Change pixelsize/study area
RUE_*.mpr
(3)
Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data
Pre-processing
Using scripts
![Page 8: Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data Piedad Cristiano & María Eugenia Beget INTA & CONICET– Buenos](https://reader035.vdocument.in/reader035/viewer/2022070403/56649f295503460f94c4316c/html5/thumbnails/8.jpg)
Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data
RUE_*.tif NDVI_*.tif PAR_*.tif
NDVI _*.mpr PAR _*.mpr
Convert toILWIS format
NDVI _*.mpr PAR _*.mpr
Subset tostudy area
Change pixelsize/study area
fPAR _*.mpr
(1+NDVI)/(1-NDVI)
4.05
If fPAR ≥ 0
If fPAR ≥ 0.95 fPAR = 0
No
Yes
fPAR = 0.95
fPAR _*.mpr
Yes
No
APAR _*.mpr
fPAR x PAR
RUE x APAR
ANPP_*.mpr ∑ month ANPP1
12annualANPP_*.mpr
P R
E
P R
O C
E S
S I
N G
D A
T A
A
N A
L Y
S I
S
(1)
(2) (4)
(5)
(6)
(7)
- 0.2666
(8)
(9)
(10)
RUE_*.mpr
Change pixelsize/study area
RUE_*.mpr
(3)
Data analysis
![Page 9: Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data Piedad Cristiano & María Eugenia Beget INTA & CONICET– Buenos](https://reader035.vdocument.in/reader035/viewer/2022070403/56649f295503460f94c4316c/html5/thumbnails/9.jpg)
Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data
RUE_*.tif NDVI_*.tif PAR_*.tif
NDVI _*.mpr PAR _*.mpr
Convert toILWIS format
NDVI _*.mpr PAR _*.mpr
Subset tostudy area
Change pixelsize/study area
fPAR _*.mpr
(1+NDVI)/(1-NDVI)
4.05
If fPAR ≥ 0
If fPAR ≥ 0.95 fPAR = 0
No
Yes
fPAR = 0.95
fPAR _*.mpr
Yes
No
APAR _*.mpr
fPAR x PAR
RUE x APAR
ANPP_*.mpr ∑ month ANPP1
12annualANPP_*.mpr
P R
E
P R
O C
E S
S I
N G
D A
T A
A
N A
L Y
S I
S
(1)
(2) (4)
(5)
(6)
(7)
- 0.2666
(8)
(9)
(10)
RUE_*.mpr
Change pixelsize/study area
RUE_*.mpr
(3)
fpar_jan07_min=iff (fpar_jan07.mpr<=0, 0, fpar_jan07.mpr)
fpar_jan07_f=iff (fpar_jan07_min.mpr>=0.95, 0.95, fpar_jan07_min.mpr)
Data analysis
Nonlinear method (Potter et al. 1993)
![Page 10: Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data Piedad Cristiano & María Eugenia Beget INTA & CONICET– Buenos](https://reader035.vdocument.in/reader035/viewer/2022070403/56649f295503460f94c4316c/html5/thumbnails/10.jpg)
Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data
RUE_*.tif NDVI_*.tif PAR_*.tif
NDVI _*.mpr PAR _*.mpr
Convert toILWIS format
NDVI _*.mpr PAR _*.mpr
Subset tostudy area
Change pixelsize/study area
fPAR _*.mpr
(1+NDVI)/(1-NDVI)
4.05
If fPAR ≥ 0
If fPAR ≥ 0.95 fPAR = 0
No
Yes
fPAR = 0.95
fPAR _*.mpr
Yes
No
APAR _*.mpr
fPAR x PAR
RUE x APAR
ANPP_*.mpr ∑ month ANPP1
12annualANPP_*.mpr
P R
E
P R
O C
E S
S I
N G
D A
T A
A
N A
L Y
S I
S
(1)
(2) (4)
(5)
(6)
(7)
- 0.2666
(8)
(9)
(10)
RUE_*.mpr
Change pixelsize/study area
RUE_*.mpr
(3)
apar_jan07= fpar_jan07_f * par_jan07_f
Data analysis
![Page 11: Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data Piedad Cristiano & María Eugenia Beget INTA & CONICET– Buenos](https://reader035.vdocument.in/reader035/viewer/2022070403/56649f295503460f94c4316c/html5/thumbnails/11.jpg)
Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data
RUE_*.tif NDVI_*.tif PAR_*.tif
NDVI _*.mpr PAR _*.mpr
Convert toILWIS format
NDVI _*.mpr PAR _*.mpr
Subset tostudy area
Change pixelsize/study area
fPAR _*.mpr
(1+NDVI)/(1-NDVI)
4.05
If fPAR ≥ 0
If fPAR ≥ 0.95 fPAR = 0
No
Yes
fPAR = 0.95
fPAR _*.mpr
Yes
No
APAR _*.mpr
fPAR x PAR
RUE x APAR
ANPP_*.mpr ∑ month ANPP1
12annualANPP_*.mpr
P R
E
P R
O C
E S
S I
N G
D A
T A
A
N A
L Y
S I
S
(1)
(2) (4)
(5)
(6)
(7)
- 0.2666
(8)
(9)
(10)
RUE_*.mpr
Change pixelsize/study area
RUE_*.mpr
(3)
anpp_jan07= apar_jan07 * rue_sprsum_f *10
Data analysis
Monthly results
![Page 12: Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data Piedad Cristiano & María Eugenia Beget INTA & CONICET– Buenos](https://reader035.vdocument.in/reader035/viewer/2022070403/56649f295503460f94c4316c/html5/thumbnails/12.jpg)
Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data
RUE_*.tif NDVI_*.tif PAR_*.tif
NDVI _*.mpr PAR _*.mpr
Convert toILWIS format
NDVI _*.mpr PAR _*.mpr
Subset tostudy area
Change pixelsize/study area
fPAR _*.mpr
(1+NDVI)/(1-NDVI)
4.05
If fPAR ≥ 0
If fPAR ≥ 0.95 fPAR = 0
No
Yes
fPAR = 0.95
fPAR _*.mpr
Yes
No
APAR _*.mpr
fPAR x PAR
RUE x APAR
ANPP_*.mpr ∑ month ANPP1
12annualANPP_*.mpr
P R
E P
R O
C E
S S
I N
GD
A T
A
A N
A L
Y S
I S
(1)
(2) (4)
(5)
(6)
(7)
- 0.2666
(8)
(9)
(10)
RUE_*.mpr
Change pixelsize/study area
RUE_*.mpr
(3)
anpp_07 = anpp_jan07 + anpp_feb07 + anpp_mar07 + anpp_apr07 + anpp_may07 + anpp_jun07 + anpp_jul07 + anpp_aug07 + anpp_sep07 + anpp_oct07 + anpp_nov07 + anpp_dec07
Final results
Data analysis
![Page 13: Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data Piedad Cristiano & María Eugenia Beget INTA & CONICET– Buenos](https://reader035.vdocument.in/reader035/viewer/2022070403/56649f295503460f94c4316c/html5/thumbnails/13.jpg)
Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data
Conclusions
A methodology to compute monthly ANPP in the Pampa Region from NDVI and PAR data was presented. The methodology is based on the efficiency model using bi-seasonal RUE maps.
ANPP was compared with ANPP estimated by two models (CASA and Sala et al. 1994) and by efficiency model using fixed RUE=0.48 g/MJ. Validation performed better using this methodology (bi-seasonal variable RUE map) than ANPP calculated from a fixed RUE.
A further validation against field data is warranted.
Same methodology can be applied using NDVI derived from the SPOT Vegetation instrument or the daily NDVI derived from the SEVIRI-instrument onboard Meteosat Second Generation available from the GEONETCast toolbox .
![Page 14: Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data Piedad Cristiano & María Eugenia Beget INTA & CONICET– Buenos](https://reader035.vdocument.in/reader035/viewer/2022070403/56649f295503460f94c4316c/html5/thumbnails/14.jpg)
Aboveground Net Primary Productivity estimation of Pampa grasslands using MODIS and GOES data
THANK YOU / GRACIAS / MERCI / OBRIGADAS / DANK U