MODISMODIS

The MODerate-resolution Imaging Spectroradiometer

(MODIS )

Kirsten de Beurs

Lab 1: Introduction to MODIS + MODIS lab exercise

Kirsten M. de Beurs, Ph.D.

Assistant Professor of Geography

Center for Environmental and Applied Remote Sensing (CEARS)

Virginia Polytechnic Institute and State University

Kdebeurs@vt.edu

http://www.mapseasons.net

Madison LSP Workshop: 08 APR 2008

Terra Launch: Dec. 18, 1999First Image: Feb. 24, 2000

Aqua Launch: May 04, 2002First Image: June 24, 2002

Terra Launch on December 18,1999Aqua Launch on May 4, 2002

Land Algorithm Land Algorithm DependencyDependency

Previous Period’s

BRDF/AlbedoLand Surface Temp./Emissivity

Land Cover

L2/L2G Products

Snow/Sea-Ice Cover Surface Reflectance FireLand Surface Temp./Emissivity Grid Pointer Data Grid Angular Data

L3/L4 Products

Snow/Sea-ice Cover Surface Reflectance Land Surface Temp./EmissivityFire and Burned Areas Vegetation Indexes BRDF/Albedo

LAI/FPAR GPP/NPP Land Cover and Vegetation Dynamics Vegetation Cover Change and Continuous Fields Evaporation

Previous L3/L4 Products

Input Data

Calibrated Radiance Geolocation Fields Cloud Mask Aerosol

Precipitable Water DAO Data

Level 2G, 3 and 4 ProductsLevel 2G, 3 and 4 Products• Level 2G/3: earth-

gridded geophysical parameters

• Level 4: earth-gridded model outputs

• Daily, 8-day, 16-day, 32-day, monthly and yearly products

• 10º x 10º Tiles ( ) • Sinusoidal (equatorial);

7.5, 15 and 30 arcsec. resolution (roughly 250m, 500m and 1 km)

• LAEA (sea-ice products, polar projection)

Lambert Azimuthal Equal Area (LAEA)

Sinusoidal

MODIS Land Product Overview MODIS Land Product Overview (1/3)(1/3)

Radiation Budget Variables– Surface

Reflectance– Surface

Temperature and Emissivity

– Snow and Ice Cover

– BRDF and Albedo

MODIS Land Product Overview MODIS Land Product Overview (2/3)(2/3)

Ecosystem Variables– Vegetation

Indices– Leaf Area Index

(LAI) and Fractional Photosynthetically Active Radiation (FPAR)

– Vegetation Production

– Net Primary Productivity (NPP)

MODIS Land Product Overview MODIS Land Product Overview (3/3)(3/3)

Land Cover Characteristic– Fire and

Thermal Anomalies

– Land Cover– Vegetation

Cover Conversion

CURRENT MODIS PRODUCTSCURRENT MODIS PRODUCTS

MOD01 Level-1A Radiance Counts MOD02 Level-1B Calibrated Relocated Radiances MOD03 Relocation Data Set MOD04 Aerosol Product MOD05 Total Precipitable Water MOD06 Cloud Product MOD07 Atmospheric profiles MOD08 Gridded Atmospheric Product (Level-3) MOD09 Atmospherically-corrected Surface Reflectance MOD10 Snow Cover MOD11 Land Surface Temperature & Emissivity MOD12 Land Cover/Land Cover Change MOD13 Vegetation Indices MOD14 Thermal Anomalies, Fires & Biomass Burning MOD15 Leaf Area Index & FPAR MOD16 Surface Resistance & Evapotranspiration MOD17 Vegetation Production, Net Primary Productivity MOD18 Normalized Water-leaving Radiance

MOD19 Pigment Concentration MOD20 Chlorophyll Fluorescence MOD21 Chlorophyll_a Pigment Concentration

MOD22 Photosynthetically Active Radiation (PAR)

MOD23 Suspended-Solids Conc, Ocean Water MOD24 Organic Matter Concentration

MOD25 Coccolith Concentration MOD26 Ocean Water Attenuation Coefficient MOD27 Ocean Primary Productivity

MOD28 Sea Surface Temperature MOD29 Sea Ice Cover MOD31 Phycoerythrin Concentration

MOD32 Processing Framework & Match-up Database MOD35 Cloud Mask MOD36 Total Absorption Coefficient

MOD37 Ocean Aerosol Properties MOD39 Clear Water Epsilon MOD43 Albedo 16-day L3 MOD44 Vegetation Cover Conversion

MODISALB Snow and Sea Ice Albedo