Missions: Emergency Response Education Research

Real-time data: NOAA AVHRR GOES-8 GVAR Orbview-2 SeaWiFS Terra/Aqua MODIS OCEANSAT-1 OCM RADARSAT/ERS-2 SAR

Earth Scan Lab, Coastal Studies Institute

Louisiana State UnviersityBaton Rouge, Louisiana

Directors: Oscar Huh, Nan Walker Associate Director: Larry Rouse System Manager: Alaric Haag

Coastal Applications for Remote Sensing

*Storm/hurricane tracking and impacts*Surveillance of high velocity shelf and slope

currents*Tracking/prediction of oil spills

* Map Coastal Flooding* Managing Eutrophication/Hypoxia

* Harmful algal blooms (HABs)* Managing river diversions - sediments, algal

blooms, and salinity* Assess Land Loss or Gain

*Surveillance of marsh/wetland changes

IR channels: 3.8-4.0 10.2-11.2 11.5-12.5 microns

Night-time composites were produced using

warmest pixels over 10 hours

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In-Situ Predicted SS

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SeaWiFS 670 nm Radiance (mW cm-2 µm-1 sr-1)

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Quantifying in-water substances with SeaWiFS

Chlorophyll a Suspended Sediment

Critical Resolution Needs

* Spectral: narrow bands

* Spatial: 250m-1 km

* Temporal: 15-30 minutes

* Radiometric: 12 bit

Remote Sensing Needs in Coastal Zone

Parameter Wavelength

Suspended sediments: 0.64 µmChlorophyll a, harmful algal blooms: 0.49 µm, 0.55 µmLand/water boundary, flooding: 0.86 µmSea surface temperature: 3.9, 11, 12 µm

Spatial resolution < 0.5 km visible, 1 km thermalTemporal resolution 15-30 minutes

Model R R2 RMS Error Bias

Ch 2,4,5 0.99 0.98 0.45 -0.003

Ch 2,4 0.99 0.98 0.47 0.003

Ch 2 0.99 0.98 0.48 0.003

Y= 1.51 + 1.04 (Ch2) + 0.39 (Ch 4 – Ch 5)

Y= 1.75 + 1.18 (Ch 2) + (-0.133) (Ch4)

Y = 1.51 + 1.06 (Ch2)

SST night-time algorithms: GOM region