calibration of ibis against data from four primary forest sites in amazonia marcos heil costa,...
TRANSCRIPT
Calibration of IBIS against data from four primary forest sites in
Amazonia
Marcos Heil Costa, Hewlley M. A. Imbuzeiro,
Gleidson C. B. Baleeiro, Humberto R. da Rocha,
Antonio Manzi, Scott Saleska, Steve Wofsy,
Lucy Hutira, Michael Goulden, Scott Miller
1. Introduction
• Land surface/ecosystem models, like IBIS,
simulate the fluxes of energy, water and CO2
between the surface and the atmosphere
• Traditionally in the field, these models are
usually calibrated against data collected in one
single site per ecosystem
• Given the availability of LBA data for Amazonia, in this study, we calibrate IBIS against data from four primary rainforest sites in Amazonia?
– Flona Tapajós km 67
– Flona Tapajós km 83
– Reserva do Cuieiras km 34
– Rebio Jaru
• The process of calibration aims at minimizing the RMSE for latent and sensible heat fluxes, as well as carbon fluxes
• Model input variables– Sin (solar incoming radiation)– Lin (infrared incoming radiation)– Ta (air temperature)– ha (air relative humidity)– ua (wind speed)– P (precipitation)
• Model validation– Rn (net radiation)– H (sensible heat flux)– LE (latent heat flux)– NEE (net ecosystem exchange)
Data filtering
• Input data
• Turbulence threshold (u*0 = 0.1 m/s)
• Energy balance closure ( = 0.4), on a daily basis
11
GRn
LEH
Parameters calibrated
• Fine root distribution (2)
• Maximum capacity of Rubisco enzyme (Vmax)
• Angular coefficient related to stomatal conductance (m)
• Heat capacity of stems (CHS)
2. Initial results
Flona Tapajós km 83
Flona Tapajós km 83 - Rn
Tapajós km83 Rn (W m-2) - AGO
-100
100
300
500
700
900
2/8/2000 4/8/2000 6/8/2000 8/8/2000 10/8/2000 12/8/2000
Rn sim
Rn obs
(a) Tapajós km83 Rn (W m-2) - NOV
-100
100
300
500
700
900
22/11/2000 24/11/2000 26/11/2000 28/11/2000 30/11/2000 2/12/2000
Rn sim
Rn obs
(b)
Tapajós km83 Rn (W m-2) - MAR
-100
100
300
500
700
900
14/3/2001 16/3/2001 18/3/2001 20/3/2001 22/3/2001 24/3/2001
Rn sim
Rn obs
(c)Tapajós km83 Rn (W m-2) - MAI
-100
100
300
500
700
900
18/5/2001 20/5/2001 22/5/2001 24/5/2001 26/5/2001 28/5/2001
Rn sim
Rn obs
(d)
Flona Tapajós km 83 - H
Tapajós km83 H (W m-2) - AGO
-100
0
100
200
300
400
2/8/2000 4/8/2000 6/8/2000 8/8/2000 10/8/2000 12/8/2000
H sim
H obs
(a) Tapajós km83 H (W m-2) - NOV
-100
0
100
200
300
400
22/11/2000 24/11/2000 26/11/2000 28/11/2000 30/11/2000 2/12/2000
H sim
H obs
(b)
Tapajós km83 H (W m-2) - MAR
-100
0
100
200
300
400
14/3/2001 16/3/2001 18/3/2001 20/3/2001 22/3/2001 24/3/2001
H sim
H obs
(c) Tapajós km83 H (W m-2) - MAI
-100
0
100
200
300
400
18/5/2001 20/5/2001 22/5/2001 24/5/2001 26/5/2001 28/5/2001
H sim
H obs
(d)
Flona Tapajós km 83 - LETapajós km83 LE (W m-2) - AGO
-200
0
200
400
600
800
2/8/2000 4/8/2000 6/8/2000 8/8/2000 10/8/2000 12/8/2000
LE sim
LE obs
(a) Tapajós km83 LE (W m-2) - NOV
-200
0
200
400
600
800
22/11/2000 24/11/2000 26/11/2000 28/11/2000 30/11/2000 2/12/2000
LE sim
LE obs
(b)
Tapajós km83 LE (W m-2) - MAR
-200
0
200
400
600
800
14/3/2001 16/3/2001 18/3/2001 20/3/2001 22/3/2001 24/3/2001
LE sim
LE obs
(c) Tapajós km83 LE (W m-2) - MAI
-200
0
200
400
600
800
18/5/2001 20/5/2001 22/5/2001 24/5/2001 26/5/2001 28/5/2001
LE sim
LE obs
(d)
Flona Tapajós km 83 - NEETapajós km83 NEE (kg C ha-1 hr-1) - AGO
-20
-10
0
10
20
2/8/2000 4/8/2000 6/8/2000 8/8/2000 10/8/2000 12/8/2000
NEE sim
NEE obs
(a)
2
Tapajós km83 NEE (kg C ha-1 hr-1) - NOV
-20
-10
0
10
20
22/11/2000 24/11/2000 26/11/2000 28/11/2000 30/11/2000 2/12/2000
NEE sim
NEE obs
(b)
Tapajós km83 NEE (kg C ha-1 hr-1) - MAR
-20
-10
0
10
20
14/3/2001 16/3/2001 18/3/2001 20/3/2001 22/3/2001 24/3/2001
NEE sim
NEE obs
(c) Tapajós km83 NEE (kg C ha-1 hr-1) - MAI
-20
-10
0
10
20
18/5/2001 20/5/2001 22/5/2001 24/5/2001 26/5/2001 28/5/2001
NEE sim
NEE obs
(d)
Flona Tapajós km 83 Cumulative fluxes
Tapajós km83 Cumulativo Rn (MJ m -2)
0
500
1000
1500
2000
2500
3000
3500
1/7/00 19/9/00 8/12/00 26/2/01 17/5/01 5/8/01
Rn ac. Obs
Rn ac. sim
(a) Tapajós km83 Cumulativo H (MJ m -2)
0
100
200
300
400
1/7/ 00 19/9/00 8/12/00 26/2/01 17/5/01 5/8/ 01
H ac. Obs
H ac. Sim
(b)
Tapajós km83 Cumulativo LE (MJ m -2)
0
400
800
1200
1600
2000
1/7/ 00 19/9/00 8/12/00 26/2/01 17/5/01 5/8/ 01
LE ac. Obs
LE ac. Sim
(c) Tapajós km83 Cumulativo NEE (kg C ha-1)
- 6000
- 5000
- 4000
- 3000
- 2000
- 1000
0
1/7/2000 19/9/2000 8/12/2000 26/2/2001 17/5/2001 5/8/2001
NEE ac. ObsNEE ac. S im
(d)
Initial results
Flona Tapajós km 67
Flona Tapajós km 67 - RnTapajós km67 Rn (W m-2) - ABR
-100
100
300
500
700
900
12/4/2001 14/4/2001 16/4/2001 18/4/2001 20/4/2001 22/4/2001
Rn sim
Rn obs
(a) Tapajós km67 Rn (W m-2) - J UL
-100
100
300
500
700
900
1/7/2001 3/7/2001 5/7/2001 7/7/2001 9/7/2001 11/7/2001
Rn sim
Rn obs
(b)
Tapajós km67 Rn (W m-2) - FEV
-100
100
300
500
700
900
9/2/2002 11/2/2002 13/2/2002 15/2/2002 17/2/2002 19/2/2002
Rn sim
Rn obs
(c)Tapajós km67 Rn (W m-2) - J UL
-100
100
300
500
700
900
1/7/2002 3/7/2002 5/7/2002 7/7/2002 9/7/2002 11/7/2002
Rn sim
Rn obs
(d)
Flona Tapajós km 67 - H
H (W m-2) - ABR
-100
0
100
200
300
400
12/4/2001 14/4/2001 16/4/2001 18/4/2001 20/4/2001 22/4/2001
H sim
H obs
(a) H (W m-2) - J UL
-100
0
100
200
300
400
1/7/2001 3/7/2001 5/7/2001 7/7/2001 9/7/2001 11/7/2001
H sim
H obs
(b)
H (W m-2) - FEV
-100
0
100
200
300
400
9/2/2002 11/2/2002 13/2/2002 15/2/2002 17/2/2002 19/2/2002
H sim
H obs
(c) H (W m-2) - J UL
-100
0
100
200
300
400
1/7/2002 3/7/2002 5/7/2002 7/7/2002 9/7/2002 11/7/2002
H sim
H obs
(d)
Flona Tapajós km 67 - LELE (W m-2) - ABR
-200
0
200
400
600
800
12/4/2001 14/4/2001 16/4/2001 18/4/2001 20/4/2001 22/4/2001
LE sim
LE obs
(a) LE (W m-2) - J UL
-200
0
200
400
600
800
1/7/2001 3/7/2001 5/7/2001 7/7/2001 9/7/2001 11/7/2001
LE sim
LE obs
(b)
LE (W m-2) - FEV
-200
0
200
400
600
800
9/2/2002 11/2/2002 13/2/2002 15/2/2002 17/2/2002 19/2/2002
LE sim
LE obs
(c) LE (W m-2) - J UL
-200
0
200
400
600
800
1/7/2002 3/7/2002 5/7/2002 7/7/2002 9/7/2002 11/7/2002
LE sim
LE obs
(d)
Flona Tapajós km 67 - NEE
NEE (kg C ha-1 hr-1) - ABR
-20
-10
0
10
20
12/4/2001 14/4/2001 16/4/2001 18/4/2001 20/4/2001 22/4/2001
NEE sim
NEE obsNEE (kg C ha-1 hr-1) - J UL
-20
-10
0
10
20
1/7/2001 3/7/2001 5/7/2001 7/7/2001 9/7/2001 11/7/2001
NEE sim
NEE obs
(b)
NEE (kg C ha-1 hr-1) - FEV
-20
-10
0
10
20
9/2/2002 11/2/2002 13/2/2002 15/2/2002 17/2/2002 19/2/2002
NEE sim
NEE obs
(c) NEE (kg C ha-1 hr-1) - J UL
-20
-10
0
10
20
1/7/2002 3/7/2002 5/7/2002 7/7/2002 9/7/2002 11/7/2002
NEE sim
NEE obs
(d)
Flona Tapajós km 67Cumulative fluxes
Tapajós km67 Cumulativo Rn (MJ m-2)
0
1000
2000
3000
4000
5000
12/4/01 21/7/01 29/10/01 6/2/02 17/5/02
Rn ac. Obs
Rn ac. sim
(a) Tapajós km67 Cumulativo H (MJ m-2)
0
400
800
1200
1600
2000
12/4/01 21/7/01 29/10/01 6/2/02 17/5/02
H ac. Obs
H ac. Sim
(b)
Tapajós km67 Cumulativo LE (MJ m-2)
0
500
1000
1500
2000
2500
3000
12/4/01 21/7/01 29/10/01 6/2/02 17/5/02
LE ac. Obs
LE ac. Sim
(c) Tapajós km67Cumulativo NEE (kg C ha-1)
- 7000
- 6000
- 5000
- 4000
- 3000
- 2000
- 1000
0
12/4/2001 21/7/2001 29/10/2001 6/2/2002 17/5/2002
NEE ac. Obs
NEE ac. Sim
(d)
Initial results
Reserva do Cuieiras km 34
Reserva do Cuieiras km 34 - RnCuieiras km34 Rn (W m-2) - SET
-100
100
300
500
700
900
26/9/1999 28/9/1999 30/9/1999 2/10/1999 4/10/1999 6/10/1999
Rn sim
Rn obs
(a) Cuieiras km34 Rn (W m-2) - DEZ
-100
100
300
500
700
900
3/12/1999 5/12/1999 7/12/1999 9/12/1999 11/12/1999 13/12/1999
Rn sim
Rn obs
(b)
Cuieiras km34 Rn (W m-2) - J UN
-100
100
300
500
700
900
2/6/2000 4/6/2000 6/6/2000 8/6/2000 10/6/2000 12/6/2000
Rn sim
Rn obs
(c)Cuieiras km34 Rn (W m-2) - J UL
-100
100
300
500
700
900
22/7/2000 24/7/2000 26/7/2000 28/7/2000 30/7/2000 1/8/2000
Rn sim
Rn obs
(d)
Reserva do Cuieiras km 34 - HCuieiras km34 H (W m-2) - SET
-100
0
100
200
300
400
26/9/1999 28/9/1999 30/9/1999 2/10/1999 4/10/1999 6/10/1999
H sim
H obs
(a) Cuieiras km34 H (W m-2) - DEZ
-100
0
100
200
300
400
3/12/1999 5/12/1999 7/12/1999 9/12/1999 11/12/1999 13/12/1999
H sim
H obs
(b)
Cuieiras km34 H (W m-2) - J UN
-100
0
100
200
300
400
2/6/2000 4/6/2000 6/6/2000 8/6/2000 10/6/2000 12/6/2000
H sim
H obs
(c) Cuieiras km34 H (W m-2) - J UL
-100
0
100
200
300
400
22/7/2000 24/7/2000 26/7/2000 28/7/2000 30/7/2000 1/8/2000
H sim
H obs
(d)
Reserva do Cuieiras km 34 - LECuieiras km34 LE (W m-2) - SET
-200
0
200
400
600
800
26/9/1999 28/9/1999 30/9/1999 2/10/1999 4/10/1999 6/10/1999
LE sim
LE obs
(a) Cuieiras km34 LE (W m-2) - DEZ
-200
0
200
400
600
800
3/12/1999 5/12/1999 7/12/1999 9/12/1999 11/12/1999 13/12/1999
LE sim
LE obs
(b)
Cuieiras km34 LE (W m-2) - J UN
-200
0
200
400
600
800
2/6/2000 4/6/2000 6/6/2000 8/6/2000 10/6/2000 12/6/2000
LE sim
LE obs
(c) Cuieiras km34 LE (W m-2) - J UL
-200
0
200
400
600
800
22/7/2000 24/7/2000 26/7/2000 28/7/2000 30/7/2000 1/8/2000
LE sim
LE obs
(d)
Reserva do Cuieiras km 34 - NEE
Cuieiras km34 NEE (kg C ha-1 hr-1) - SET
-20
-10
0
10
20
26/9/99 28/9/99 30/9/99 2/10/99 4/10/99 6/10/99
NEE sim
NEE obs
(a) Cuieiras km34 NEE (kg C ha-1 hr-1) - DEZ
-20
-10
0
10
20
3/12/99 5/12/99 7/12/99 9/12/99 11/12/99 13/12/99
NEE sim
NEE obs
(b)
Cuieiras km34 NEE (kg C ha-1 hr-1) - J UN
-20
-10
0
10
20
2/6/00 4/6/00 6/6/00 8/6/00 10/6/00 12/6/00
NEE sim
NEE obs
(c)
Cuieiras km34 NEE (kg C ha-1 hr-1) - J UL
-20
-10
0
10
20
22/7/00 24/7/00 26/7/00 28/7/00 30/7/00 1/8/00
NEE sim
NEE obs
(d)
Reserva do Cuieiras km 34 Cumulative fluxes
Cuieiras km34 Cumulativo Rn (MJ m -2)
0
1000
2000
3000
4000
5000
6000
16/6/99 16/9/99 16/12/99 16/3/00 16/6/00 16/9/00
Rn ac. Obs
Rn ac. Sim
(a) Cuieiras km34 Cumulativo H (MJ m -2)
0
200
400
600
800
16/6/99 16/9/99 16/12/99 16/3/00 16/6/00 16/9/00
H ac. Obs
H ac. Sim
(b)
Cuieiras km34 Cumulativo LE (MJ m -2)
0
500
1000
1500
2000
2500
3000
16/6/99 16/9/99 16/12/99 16/3/00 16/6/00 16/9/00
LE ac. Obs
LE ac. Sim
(c) Cuieiras km34 Cumulativo NEE (kg C ha-1)
-6000
-5000
-4000
-3000
-2000
-1000
0
16/6/99 16/9/99 16/12/99 16/3/00 16/6/00 16/9/00
NEE ac. Obs
NEE ac. Sim
(d)
Initial results
Rebio Jaru
Rebio Jaru - Rn
Rebio J aru Rn (W m-2) - ABR
-100
100
300
500
700
900
25/4/1999 27/4/1999 29/4/1999 1/5/1999 3/5/1999
Rn sim
Rn obs
(a) Rebio J aru Rn (W m-2) - J UN
-100
100
300
500
700
900
7/6/1999 9/6/1999 11/6/1999 13/6/1999 15/6/1999
Rn sim
Rn obs
(b)
Rebio J aru Rn (W m-2) - OUT
-100
100
300
500
700
900
3/10/1999 5/10/1999 7/10/1999 9/10/1999 11/10/1999 13/10/1999
Rn sim
Rn obs
(c)Rebio J aru Rn (W m-2) - NOV
-100
100
300
500
700
900
7/11/1999 9/11/1999 11/11/1999 13/11/1999 15/11/1999 17/11/1999
Rn sim
Rn obs
(d)
Rebio Jaru - H
Rebio J aru H (W m-2) - ABR
-100
0
100
200
300
400
25/4/99 27/4/99 29/4/99 1/5/99 3/5/99
H sim
H obs
(a) Rebio J aru H (W m-2) - J UN
-100
0
100
200
300
400
7/6/99 9/6/99 11/6/99 13/6/99 15/6/99
H sim
H obs
(b)
Rebio J aru H (W m-2) - OUT
-200
-100
0
100
200
300
400
3/10/99 5/10/99 7/10/99 9/10/99 11/10/99 13/10/99
H sim
H obs
(c) Rebio J aru H (W m-2) - NOV
-100
0
100
200
300
400
7/11/99 9/11/99 11/11/99 13/11/99 15/11/99 17/11/99
H sim
H obs
(d)
Rebio Jaru - LE
Rebio J aru LE (W m-2) - ABR
-200
0
200
400
600
800
25/4/99 27/4/99 29/4/99 1/5/99 3/5/99
LE sim
LE obs
(a)
Rebio J aru LE (W m-2) - J UN
-200
0
200
400
600
800
7/6/99 9/6/99 11/6/99 13/6/99 15/6/99
LE sim
LE obs
(b)
Rebio J aru LE (W m-2) - OUT
-200
0
200
400
600
800
3/10/99 5/10/99 7/10/99 9/10/99 11/10/99 13/10/99
LE sim
LE obs
(c) Rebio J aru LE (W m-2) - NOV
-200
0
200
400
600
800
7/11/99 9/11/99 11/11/99 13/11/99 15/11/99 17/11/99
LE sim
LE obs
(d)
Rebio Jaru - NEE
Rebio J aru NEE/ FC (kg C ha-1 hr-1) - ABR
-20
-10
0
10
20
25/4/99 27/4/99 29/4/99 1/5/99 3/5/99
NEE sim
FC obs
(a) Rebio J aru NEE/ FC (kg C ha-1 hr-1) - J UN
-20
-10
0
10
20
7/6/99 9/6/99 11/6/99 13/6/99 15/6/99
NEE sim
FC obs
(b)
Rebio J aru NEE/ FC (kg C ha-1 hr-1) - OUT
-20
-10
0
10
20
3/10/99 5/10/99 7/10/99 9/10/99 11/10/99 13/10/99
NEE sim
FC obs
(c) Rebio J aru NEE/ FC (kg C ha-1 hr-1) - NOV
-20
-10
0
10
20
7/11/99 9/11/99 11/11/99 13/11/99 15/11/99 17/11/99
NEE sim
FC obs
(d)
Rebio Jaru Cumulative fluxes
Rebio Jaru Cumulativo Rn (MJ m-2)
0
500
1000
1500
2000
2500
3000
3500
30/3/99 14/5/99 28/6/99 12/8/99 26/9/99 10/11/99
Rn ac. Obs
Rn ac. sim
(a) Rebio Jaru Cumulativo H (MJ m-2)
0
30
60
90
120
150
180
30/3/99 14/5/99 28/6/99 12/8/99 26/9/99 10/11/99
H ac. Obs
H ac. Sim
(b)
Rebio Jaru Cumulativo LE (MJ m-2)
0
100
200
300
400
500
30/3/99 14/5/99 28/6/99 12/8/99 26/9/99 10/11/99
LE ac. Obs
LE ac. Sim
(c) Rebio Jaru Cumulativo NEE/ FC (kg C ha-1)
- 3000
- 2500
- 2000
- 1500
- 1000
- 500
0
30/3/99 9/5/99 18/6/99 28/7/99 6/9/99 16/10/99 25/11/99
FC ac. Obs
NEE ac. Sim
(d)
Initial results – summary
β2 Vmax
( mol m 2 s
1)
m CHS
(J m 2 °C-
1)
km 83 0.997 120 11 0.325· 105
km 67 0.980 65 9 2.109· 105
km 34 0.985 70 9 0.263· 105
Rebio Jaru
0.997 120 10 0.527· 105
3. New results
• Flona Tapajós km 83 and km 67 only
• Same period for km 83, but with revised meteorological station and flux data
• Errors reported in water vapor at the initial time series initially used
• Used different period for km 67
Flona Tapajós km 83
15
25
35
45
55
65
30/06/00 02/07/00 04/07/00 06/07/00 08/07/00 10/07/00
T (
o C)
0
20
40
60
80
100
RH
(%
)
T new T old RH new RH old
3. New results (still preliminary)
Flona Tapajós km 83
Flona Tapajós km 83 - Rn
Tapajós km83 Rn (W m-2) - AGO
-100
100
300
500
700
900
8/02/00 8/04/00 8/06/00 8/08/00 8/10/00 8/12/00
Rn sim
Rn obs
(a) Tapajós km83 Rn (W m-2) - NOV
-100
100
300
500
700
900
11/22/00 11/24/00 11/26/00 11/28/00 11/30/00 12/02/00
Rn sim
Rn obs
(b)
Tapajós km83 Rn (W m-2) - MAR
-100
100
300
500
700
900
3/14/01 3/16/01 3/18/01 3/20/01 3/22/01 3/24/01
Rn sim
Rn obs
(c) Tapajós km83 Rn (W m-2) - MAI
-100
100
300
500
700
900
5/18/01 5/20/01 5/22/01 5/24/01 5/26/01 5/28/01
Rn sim
Rn obs
(d)
Flona Tapajós km 83 - H
Tapajós km83 H (W m-2) - AGO
-200
-100
0
100
200
300
400
8/02/00 8/04/00 8/06/00 8/08/00 8/10/00 8/12/00
H sim
H obs
(a) Tapajós km83 H (W m-2) - NOV
-100
0
100
200
300
400
11/22/00 11/24/00 11/26/00 11/28/00 11/30/00 12/02/00
H sim
H obs
(b)
Tapajós km83 H (W m-2) - MAR
-100
0
100
200
300
400
3/14/01 3/16/01 3/18/01 3/20/01 3/22/01 3/24/01
H sim
H obs
(c) Tapajós km83 H (W m-2) - MAI
-100
0
100
200
300
400
5/18/01 5/20/01 5/22/01 5/24/01 5/26/01 5/28/01
H sim
H obs
(d)
Flona Tapajós km 83 - LE
Tapajós km83 LE (W m-2) - AGO
-200
0
200
400
600
800
8/02/00 8/04/00 8/06/00 8/08/00 8/10/00 8/12/00
LE sim
LE obs
(a) Tapajós km83 LE (W m-2) - NOV
-200
0
200
400
600
800
11/22/00 11/24/00 11/26/00 11/28/00 11/30/00 12/02/00
LE sim
LE obs
(b)
Tapajós km83 LE (W m-2) - MAR
-200
0
200
400
600
800
3/14/01 3/16/01 3/18/01 3/20/01 3/22/01 3/24/01
LE sim
LE obs
(c) Tapajós km83 LE (W m-2) - MAI
-200
0
200
400
600
800
5/18/01 5/20/01 5/22/01 5/24/01 5/26/01 5/28/01
LE sim
LE obs
(d)
Flona Tapajós km 83 - NEE
Tapajós km83 NEE (kg C ha-1 hr-1) - AGO
-20
-10
0
10
20
8/02/00 8/04/00 8/06/00 8/08/00 8/10/00 8/12/00
NEE sim
NEE obs
(a)
2
Tapajós km83 NEE (kg C ha-1 hr-1) - NOV
-20
-10
0
10
20
11/22/00 11/24/00 11/26/00 11/28/00 11/30/00 12/02/00
NEE sim
NEE obs
(b)
Tapajós km83 NEE (kg C ha-1 hr-1) - MAR
-20
-10
0
10
20
3/14/01 3/16/01 3/18/01 3/20/01 3/22/01 3/24/01
NEE sim
NEE obs
(c) Tapajós km83 NEE (kg C ha-1 hr-1) - MAI
-20
-10
0
10
20
5/18/01 5/20/01 5/22/01 5/24/01 5/26/01 5/28/01
NEE sim
NEE obs
(d)
Flona Tapajós km 83 Cumulative fluxes
Tapajós km83 Cumulative H (MJ m-2)
0
50
100
150
200
250
300
07/01/00 09/19/00 12/08/00 02/26/01 05/17/01 08/05/01
H ac. Obs
H ac. Sim
(b) Tapajós km83 Cumulative NEE (kg C ha-1)
-4000
-3000
-2000
-1000
0
1000
07/01/00 09/19/00 12/08/00 02/26/01 05/17/01 08/05/01
NEE ac. Obs
NEE ac. Sim
(d)
Tapajós km83 Cumulative LE (MJ m-2)
0
400
800
1200
1600
07/01/00 09/19/00 12/08/00 02/26/01 05/17/01 08/05/01
LE ac. Obs
LE ac. Sim
(c)Tapajós km83 Cumulative Rn (MJ m-2)
0
500
1000
1500
2000
2500
3000
3500
4000
4500
07/01/00 09/19/00 12/08/00 02/26/01 05/17/01 08/05/01
Rn ac. Obs
Rn ac. sim
(a)
New Results
Flona Tapajós km 67
Flona Tapajós km 67 - Rn
Tapajós km67 Rn (W m-2) - AUG
-100
100
300
500
700
900
08/02/02 08/04/02 08/06/02 08/08/02 08/10/02 08/12/02
Rn sim
Rn obs
(a) Tapajós km67 Rn (W m-2) - DEC
-100
100
300
500
700
900
12/14/02 12/16/02 12/18/02 12/20/02 12/22/02 12/24/02
Rn sim
Rn obs
(b)
Tapajós km67 Rn (W m-2) - MAR
-100
100
300
500
700
900
03/26/03 03/28/03 03/30/03 04/01/03 04/03/03 04/05/03
Rn sim
Rn obs
(c)Tapajós km67 Rn (W m-2) - J UL
-100
100
300
500
700
900
07/08/03 07/10/03 07/12/03 07/14/03 07/16/03 07/18/03
Rn sim
Rn obs
(d)
Flona Tapajós km 67 - H
Tapajós km67 H (W m-2) - AUG
-100
0
100
200
300
400
08/02/02 08/04/02 08/06/02 08/08/02 08/10/02 08/12/02
H sim
H obs
(a) Tapajós km67 H (W m-2) - DEC
-100
0
100
200
300
400
12/14/02 12/16/02 12/18/02 12/20/02 12/22/02 12/24/02
H sim
H obs
(b)
Tapajós km67 H (W m-2) - MAR
-100
0
100
200
300
400
03/26/03 03/28/03 03/30/03 04/01/03 04/03/03 04/05/03
H sim
H obs
(c) Tapajós km67 H (W m-2) - J UL
-100
0
100
200
300
400
07/08/03 07/10/03 07/12/03 07/14/03 07/16/03 07/18/03
H sim
H obs
(d)
Flona Tapajós km 67 - LE
Tapajós km67 LE (W m-2) - AUG
-200
0
200
400
600
800
08/02/02 08/04/02 08/06/02 08/08/02 08/10/02 08/12/02
LE sim
LE obs
(a) Tapajós km67 LE (W m-2) - DEC
-200
0
200
400
600
800
12/14/02 12/16/02 12/18/02 12/20/02 12/22/02 12/24/02
LE sim
LE obs
(b)
Tapajós km67 LE (W m-2) - MAR
-200
0
200
400
600
800
03/26/03 03/28/03 03/30/03 04/01/03 04/03/03 04/05/03
LE sim
LE obs
(c) Tapajós km67 LE (W m-2) - J UL
-200
0
200
400
600
800
07/08/03 07/10/03 07/12/03 07/14/03 07/16/03 07/18/03
LE sim
LE obs
(d)
Flona Tapajós km 67 - NEE
Tapajós km67 NEE (kg C ha-1 hr-1) - AUG
-20
-10
0
10
20
08/02/02 08/04/02 08/06/02 08/08/02 08/10/02 08/12/02
NEE sim
NEE obs
(a) Tapajós km67 NEE (kg C ha-1 hr-1) - DEC
-20
-10
0
10
20
12/14/02 12/16/02 12/18/02 12/20/02 12/22/02 12/24/02
NEE sim
NEE obs
(b)
Tapajós km67 NEE (kg C ha-1 hr-1) - MAR
-20
-10
0
10
20
03/26/03 03/28/03 03/30/03 04/01/03 04/03/03 04/05/03
NEE sim
NEE obs
(c) Tapajós km67 NEE (kg C ha-1 hr-1) - J UL
-20
-10
0
10
20
07/08/03 07/10/03 07/12/03 07/14/03 07/16/03 07/18/03
NEE sim
NEE obs
(d)
Flona Tapajós km 67Cumulative fluxes
Tapajós km67 Cumulative Rn (MJ m-2)
0
1000
2000
3000
4000
5000
6000
06/19/02 10/19/02 02/19/03 06/19/03 10/19/03
Rn ac. Obs
Rn ac. Sim
(a) Tapajós km67 Cumulative H (MJ m-2)
0
200
400
600
800
06/19/02 10/19/02 02/19/03 06/19/03 10/19/03
H ac. Obs
H ac. Sim
(b)
Tapajós km67 Cumulative LE (MJ m-2)
0
500
1000
1500
2000
2500
3000
06/19/02 10/19/02 02/19/03 06/19/03 10/19/03
LE ac. Obs
LE ac. Sim
(c)Tapajós km67 Cumulative NEE (kg C ha-1)
-9000
-8000
-7000
-6000
-5000
-4000
-3000
-2000
-1000
0
06/19/02 10/19/02 02/19/03 06/19/03 10/19/03
NEE ac. Obs
NEE ac. Sim
(d)
u*0 = 0.2 m/s
New results – summary
β2 Vmáx
( mol m 2 s
1)
m CHS
(J m 2 °C-
1)
km 83 0.997 120 11 0.325· 105
km 67 0.980 65 9 2.109· 105
km 83 0.997 120 8 0.263· 105
km 67 0.997 120 8.5 0.325· 105
km 34 0.985 70 9 0.263· 105
Rebio Jaru
0.997 120 10 0.527· 105
4. Conclusions (1/2)• Calibrated IBIS against data for 4 LBA primary
forest sites
• Expected similar parameters for all sites
• Initial results shows 2 sets of parameters
• Errors in the meteorological or flux datasets reported in 2 sites
• New results (preliminary) indicate that 3 of the 4 sites show similar parameters
• Model results very sensitive to errors in input data
4. Conclusions (2/2)• Model results across sites also sensitive to
inconsistencies in input data across sites
• Inconsistencies in input data very likely, given the different design and operation of LBA sites
• Collaboration with field scientists essential to eliminate inconsistencies among datasets
• Representative parameters to all rainforest sites may depend on elimination of inconsistencies