Name of the Presentation - University of Rhode Island

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Name of the Presentation

Multispectral Imaging Using Linear Arrays

Some of the slides are adopted from Dr. John Jensen’s lecture note.

Remote Sensing System used for

Multispectral and Hyperspectral Data

Collection

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SPOT satellites

SPOT 5 was launched on May 3, 2002

The HRV (High Resolution Visible) sensor operates in two modes, namely the Multispectral Mode and the Panchromatic Mode.

Two identical HRV instruments with 3 VNIR bands and a ground resolution of 20 m can point in the cross-track direction from nadir.

Thus, each HRV offers an oblique viewing capability, the viewing angle being adjustable through +/-27degrees relative to the vertical.

SPOT Satellite System Components

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The swath width varies from 60 km (nadir) to 80 km when angled at the maximum limit from nadir.

HRV panchromatic has spectral range between 500 nm and 730 nm (one channel) and 10 mspatial resolution.

SPOT Satellite System Components

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Jensen, 2007Jensen, 2007

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Geographic Coverage of the SPOT HRV and Landsat Geographic Coverage of the SPOT HRV and Landsat Thematic Thematic MapperMapper (TM) Remote Sensing Systems(TM) Remote Sensing Systems

SPOT-4 VEGETATION

The VEGETATION Programme is developed jointly by France, the European Commission, Belgium, Italy and Sweden. The first satellite component was launched onboard SPOT 4, while the second instrument was launched onboard SPOT 5.

The VEGETATION Programme is conceived to allow daily monitoring of terrestrial vegetation cover at regional to globalscales.

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SPOT-4 VEGETATION

The VEGETATION instrument is an imaging system in 4 spectral bands : 1. Blue (0.43-0.47 microns) 2. Red (0.61-0.68 microns)3. Near infrared (0.78-0.89 microns), and 4. SW infrared (1.58-1.75 microns)

The red and near infrared are particularly well adapted to describe the vegetation photosynthesis activity, while the SW infrared is a good detector for the ground and vegetation humidity.

VEGETATION uses telecentric optics giving a quasi constant spatial resolution through the field of view (2,200km). The resolution is 1.15 km at nadir, and still 1.7 km on the sides of the field of view (101°).

SPOT-4 VEGETATION

Ten day global maximum-value composite (MVC) syntheses (03/21/1999 – 03/31/1999)

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SPOT-4 VEGETATION

The free VGT products on syntheses are offered on 10 possible regions of interest.

SPOT-4 VEGETATION

Ten day global maximum-value composite (MVC) syntheses (03/21/1999 – 03/31/1999)

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SPOT-4 VEGETATION

This site gives you free access to almost the entire SPOT VEGETATIONten daily synthesis archive since 1998. http://free.vgt.vito.be

SPOT-4 VEGETATION

http://www.spot-vegetation.com/

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Instruments include:ASTER: Advanced Spaceborne Thermal Emission

and Reflection Radiometer (15m - 3 bands in VNIR;30m - 6 bands in SWIR; 90m - 5 bands in TIR)

MODIS: Moderate Resolution Spectroradiometer (0.4 - 14.4 µm)(250m - 2 bands, 500m - 5 bands, 1000m - 29 bands)

CERES: Clouds and the Earth's Radiant Energy SystemMISR: Multi-angle Imaging SpectroradiometerMOPITT: Measurements of Pollution in

the Troposphere.

Earth Observing System Terra (EOS AM): Launched December 18, 1999Aqua (EOS PM): Launched May 4, 2002

ASTER: Advanced Spaceborne Thermal Emission and Reflection Radiometer (15m - 3 bands in VNIR; 30m - 6 bands in SWIR; 90m - 5 bands in TIR)

Pearl Harbor, Hawaii, 15 x 15 m (RGB= 1,4,3)

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MODIS: Moderate Resolution Spectroradiometer (0.4 - 14.4 mm)(250m - 2 bands, 500m - 5 bands, 1000m - 29 bands)

First day global coverage 2,330 km swath widthFirst day global coverage 2,330 km swath width

MODIS Image ofNile River and Nile Delta

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MODIS provide 44 standard data precuts for land, oceans, and atmosphere, 10 data products for land, back to February 2000.

MOD 09 - Surface Reflectance MOD 11 - Land Surface Temperature & EmissivityMOD 12 - Land Cover/Land Cover Change MOD 13 - Gridded Vegetation IndicesMOD 14 - Fires & Biomass Burning MOD 15 - Leaf Area IndexMOD 16 – EvapotranspirationMOD 17 - Net Photosynthesis and Primary Productivity MOD 43 - Surface Reflectance MOD 44 - Vegetation Cover Conversion

MODIS Data Products

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MODIS Data Products

MODIS Data Products

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Provisional Land Cover Product June (Provisional Land Cover Product June (July 2000–Jan 2001)

MODIS data from

2727

The MODIS Global Vegetation Phenology product (MOD12Q2) provides estimates of the timing of vegetation phenology at global scales. As such, MOD12Q2 identifies the vegetation growth, maturity, and senescence marking seasonal cycles.

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EO-1: successfully launched on November 21, 2000

ALI - Advanced Land Imager consists of a 15° Wide Field Telescope (WFT) and partially populated focal plane occupying 1/5th of the field-of-view, giving a ground swath width of 37 km.

Hyperion – Hyper-spectral sensorsa grating imaging spectrometer having a 30 meter ground sample distance over a 7.5 kilometer swath and providing 10nm (sampling interval) contiguous bands of the solar reflected spectrum from 400-2500nm.

Hyperspectral dataHyperion sensor on board the EO-1 Satellite

Spectral profile in a single pixel location from 0.4 to 2.5 µm at 10 nm interval for a continuous coverage

over 220 bands

EO-1 launched November 21, 2000

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Imaging SpectrometryImaging SpectrometryImaging Spectrometry

Jensen, 2007Jensen, 2007

MultiMulti--angle Imaging angle Imaging SpectroradiometerSpectroradiometer(MISR)(MISR)

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AVIRIS imagery data of Ninigret Pond, Rhode Island

DisciplineDisciplineDiscipline EOS-AM InstrumentsEOSEOS--AM InstrumentsAM InstrumentsMeasurementMeasurementMeasurement

Atmosphere Cloud Properties MODIS, MISR, ASTERRadiative Energy Fluxes CERES, MODIS, MISRPrecipitationTropospheric Chemistry MOPITTStratospheric ChemistryAerosol Properties MISR, MODISAtmospheric Temperature MODISAtmospheric Humidity MODISLightning

AtmosphereAtmosphere Cloud Properties Cloud Properties MODIS, MISR, ASTERMODIS, MISR, ASTERRadiativeRadiative Energy FluxesEnergy Fluxes CERES, MODIS, MISRCERES, MODIS, MISRPrecipitationPrecipitationTroposphericTropospheric ChemistryChemistry MOPITTMOPITTStratospheric ChemistryStratospheric ChemistryAerosol PropertiesAerosol Properties MISR, MODISMISR, MODISAtmospheric TemperatureAtmospheric Temperature MODISMODISAtmospheric HumidityAtmospheric Humidity MODISMODISLightningLightning

Earth Observing System MeasurementsEarth Observing System MeasurementsEarth Observing System Measurements

Jensen, 2007Jensen, 2007Jensen, 2007

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Land Land Cover/Land Use Change MODIS, MISR, ASTERVegetation Dynamics MODIS, MISR, ASTERSurface Temperature MODIS, ASTERFire Occurrence MODIS, ASTERVolcanic Effects MODIS, MISR, ASTERSurface Wetness

LandLand Land Cover/Land Use ChangeLand Cover/Land Use Change MODIS, MISR, ASTERMODIS, MISR, ASTERVegetation DynamicsVegetation Dynamics MODIS, MISR, ASTERMODIS, MISR, ASTERSurface TemperatureSurface Temperature MODIS, ASTERMODIS, ASTERFire OccurrenceFire Occurrence MODIS, ASTERMODIS, ASTERVolcanic EffectsVolcanic Effects MODIS, MISR, ASTERMODIS, MISR, ASTERSurface WetnessSurface Wetness


Jensen, 2007Jensen, 2007Jensen, 2007


Ocean Surface Temperature MODISPhytoplankton MODIS, MISRDissolved Organic Matter MODIS, MISRSurface Wind FieldsOcean Surface Topography

OceanOcean Surface TemperatureSurface Temperature MODISMODISPhytoplankton Phytoplankton MODIS, MISRMODIS, MISRDissolved Organic MatterDissolved Organic Matter MODIS, MISRMODIS, MISRSurface Wind FieldsSurface Wind FieldsOcean Surface TopographyOcean Surface Topography

Cryosphere Land Ice Change ASTERSea Ice MODIS, ASTERSnow Cover MODIS, ASTER

CryosphereCryosphere Land Ice ChangeLand Ice Change ASTERASTERSea IceSea Ice MODIS, ASTERMODIS, ASTERSnow CoverSnow Cover MODIS, ASTERMODIS, ASTER

Solar Radiation Total Solar RadiationUltraviolet Spectral Irradiance

Solar RadiationSolar Radiation Total Solar RadiationTotal Solar RadiationUltraviolet Spectral IrradianceUltraviolet Spectral Irradiance


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Name of the Presentation - University of Rhode Island