Transcript Perspectivas INPE: 2005-2009

Multimission platform
and Brazilian EO satellites
Gilberto Câmara
INPE
http://www.dpi.inpe.br/gilberto
The need for global land observation
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The world is changing rapidly
 Climate
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Change is here to stay
Global land observation is a crucial need for the
world, but its future is uncertain
 MODIS
is very useful,but has no future
 What will happen to LANDSAT?
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Global land observation systems are a public
good
The need for fast monitoring of change
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Protecting the Amazonian rain forest
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Annual wall-to-wall detailed survey
 Uses
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LANDSAT-class satellites
Daily monitoring of new deforestations
 Uses
MODIS-class satellites
Altamira (Pará) – LANDSAT Image – 22 August 2003
Altamira (Pará) – MODIS Image – 07 May 2004
Imagem Modis de
2004-05-21, com
excesso de nuvens
Altamira (Pará) – MODIS Image – 21 May 2004
Altamira (Pará) – MODIS Image – 07 June 2004
Altamira (Pará) – MODIS Image – 22 June 2004
6.000 hectares deforested in one month!
Altamira (Pará) – LANDSAT Image – 07 July 2004
Go to the field....
...and get the bad guys!
Cumaru do Norte (PA)
Desmatamento 2005-2006
Desmatamento 2004-2005
Floresta
Desmatamento anterior
Rationale for Brasil’s SSR-1 satellite
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Brazil needs satellites with fast revisit for real time
deforestation detection
We currently use MODIS (daily revisit) but need a better
spatial resolution
The AWFI (advanced wide field imager) sensor in
CBERS-3 has 60 meter resolution every 5 days
SSR-1 will have a AWFI with 40 meter resolution every 5
days
With the AWFIs of CBERS-3 and SSR-1, we will cover
Amazônia every 2 days
Meeting Brazil’s needs for remote sensing
100
Tecnology 2000
PAN CB3
50
Revisit (metres)
Tecnology 2008
CCD CB2/CB3
Tecnology 2015
Deforestation
mapping
10
Agriculture
identification
AWFI CB3
5
WFI CB2
AWFI CB3 +
AWFI SSR1
Agriculture
mapping
Deforestation
detection
1
1
5
10
50
100
Resolution (days)
1000
US satellites used for Amazon deforestation
monitoring
2006
LANDSAT-5
1984
LANDSAT-8
2012
MODIS
2001
2007
2008
2009
2010
2011
2012
LANDSAT/5 – 30 metre resolution every 16 days
MODIS – 250 metre resolution every day
2013
Brazilian remote sensing satellites
Launch
CBERS-2
2003
CBERS-2B
2007
CBERS-3
2009
CBERS-4
2012
SSR-1
2009
SSR-2
2012
2004
2005
2006
2007
2008
2009
2010
2011
2012
Meeting Brazil’s needs for remote sensing

Today - We monitor Amazônia with 250 meters
resolution every day

In 2009, Brazil will have the capacity to monitor
Amazonia and the entire Earth with 50 meters
resolution every 2 days
Multimission platform
Brazil’s project of medium-sized satellites
MMP: General purpose bus
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Earth observation missions
polar or near–equatorial orbit
600 to 1200 km height
up to ~300 kg payload weight
175 W average / 900 W peak power
compatibility with launchers in the 500 – 600 kg
payload class
Attitude control performance
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Pointing precision: < 0.05º (3σ)
Drift: < 0.001º/s
Attitude determination: < 0.005º (3σ)
Lateral pointing agility: 30º in 180 s
Payload envelope
Possible payloads

Optical (CBERS heritage)
 Wide-field
imager
 Medium resolution camera

Radar
 Lightweight

SAR
Scientific
 GPM
sensors
Optical payload (SSR-1)
SSR-1 optical payload
AWFI
0,45-0,52 B
Spectral bands ( mm)
Spatial resolution (m)
Swath (km)
Revisit period (days)
0,52-0,59 G
0,63-0,69 R
0,77-0,89 NIR
40
800
5
SAR payload (SSR-2)
subreflector, data downlink
antenna reflector
antenna feed horn
SAR payload
solar panel
MMP
SSR-2 SAR payload
Parameters
Frequency
Polarization
Incidence interval
Spatial resolution
Swath
Orbit
Coverage
Look direction
Revisit period
Access to data
Add. requirements
L band
single, dual and quad polarization
20° – 45°
3 – 20 m
20 – 55 km
sun-synchronous
global
ascending/descending and left/right
weekly
near real time
Interferometry and stereoscopy