By: Kathleen mimoy Silvano

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Assessing the quality of MODIS ocean colour
chlorophyll products for application to
upwellings in coastal and oceanic waters of the
Philippines???
By Kathleen mimoy Silvano Promoter Kevin
Ruddick (MUMM)
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Introduction Remote sensing
? area on earths surface ? resolution ? 1
datapoint
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Introduction Optical types of water
complex case 2
case 1
phyto
Tsm
cdom
phyto
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Introduction Fate of light
reflectance
absorbed
atmosphere
reflectance
transmit
photic depth 1/kd
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Introduction Case1 vs. Case2
case2
case1
reflectance
reflectance
reflectance
reflectance
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Introduction MODIS

• 36-channel color sensor for ocean color
  measurements
• orbit every 2 days
• LAC 1.13 km/pixel
• GAC 4.5 km/pixel

MODIS (Moderate Resolution Imaging
Spectroradiometer ) http//modis.gsfc.nasa.gov
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Rationale why chlorophyll???
Phytoplankton? Chlorophyll?
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Rationale why the fuss???
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Objectives

• analyze MODIS chl images
• Select algorithm variants and thresholds
• for preparing monthly composites
• Interpreting oceanographic features (upwellings,
  etc.)

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Methodology
Generate images
Interpretation Application upwelling
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(Preliminary) ResultsOutput MODIS parameters
Reflectance_443
Sea surf temp (SST)
Chl_a
Aerosol thickness
Aerosol epsilon
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