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MODIS Land Products Workshop April 18, 2003 Instructors: Matt Reeves Numerical Terradynamics Simulation Group University of Montana Dave Verbyla Dept.

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Presentation on theme: "MODIS Land Products Workshop April 18, 2003 Instructors: Matt Reeves Numerical Terradynamics Simulation Group University of Montana Dave Verbyla Dept."— Presentation transcript:

1 MODIS Land Products Workshop April 18, 2003 Instructors: Matt Reeves Numerical Terradynamics Simulation Group University of Montana Dave Verbyla Dept. of Forest Sciences University of Alaska Fairbanks MODIS Land Products Workshop April 18, 2003 Instructors: Matt Reeves Numerical Terradynamics Simulation Group University of Montana Dave Verbyla Dept. of Forest Sciences University of Alaska Fairbanks

2 MODIS Land Products Workshop About The Instructors: Matt Reeves Research Assistant Numerical Terradynamics Simulation Group University of Montana Website: Phone: Dave Verbyla Professor of GIS/Remote Sensing Dept. of Forest Sciences University of Alaska Fairbanks Website: Phone: About The Instructors: Matt Reeves Research Assistant Numerical Terradynamics Simulation Group University of Montana Website: Phone: Dave Verbyla Professor of GIS/Remote Sensing Dept. of Forest Sciences University of Alaska Fairbanks Website: Phone:

3 MODIS Land Products Workshop Module 1: Introduction to MODIS Module 2: Ordering MODIS products Module 3: Browsing hdf-eos files Module 4: Reprojecting to GIS formats Break Module 5: MODIS Non-Vegetation Land Products Module 6: MODIS Vegetation Land Products Module 7: Quality Control Module 8: Cartographic Applications Lunch Exercise 1: Reprojecting Exercise 2: Quality Assessment Exercise 3: GIS Analysis Exercise 4: Cartographic Application Module 1: Introduction to MODIS Module 2: Ordering MODIS products Module 3: Browsing hdf-eos files Module 4: Reprojecting to GIS formats Break Module 5: MODIS Non-Vegetation Land Products Module 6: MODIS Vegetation Land Products Module 7: Quality Control Module 8: Cartographic Applications Lunch Exercise 1: Reprojecting Exercise 2: Quality Assessment Exercise 3: GIS Analysis Exercise 4: Cartographic Application

4 MODIS Land Products Workshop Module1: Introduction to MODIS

5 MODIS Land Products Workshop Direct to PI Websites EOS DataGateway Land Validation Home Site

6 MODIS Land Products Workshop December 18, 1999 Terra Satellite terra.nasa.gov 10:30 am equatorial crossing 10:30 am equatorial crossing Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Clouds & Earth's Radiant Energy System (CERES)Clouds & Earth's Radiant Energy System (CERES) Multi-angle Imaging Spectro-Radiometer (MISR)Multi-angle Imaging Spectro-Radiometer (MISR) Moderate-Resolution Imaging Spectroradiometer (MODIS) Measurements of Pollution in the Troposphere (MOPITT)Measurements of Pollution in the Troposphere (MOPITT) Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Clouds & Earth's Radiant Energy System (CERES)Clouds & Earth's Radiant Energy System (CERES) Multi-angle Imaging Spectro-Radiometer (MISR)Multi-angle Imaging Spectro-Radiometer (MISR) Moderate-Resolution Imaging Spectroradiometer (MODIS) Measurements of Pollution in the Troposphere (MOPITT)Measurements of Pollution in the Troposphere (MOPITT)

7 MODIS Land Products Workshop Atmospheric Infrared Sounder (AIRS)Atmospheric Infrared Sounder (AIRS) Advanced Microwave Scanning Radiometer(AMSR)Advanced Microwave Scanning Radiometer(AMSR) Advanced Microwave Sounding Unit (AMSU)Advanced Microwave Sounding Unit (AMSU) Clouds and Earths Radiant Energy System (CERES)Clouds and Earths Radiant Energy System (CERES) Humidity Sounder for Brazil (HSB)Humidity Sounder for Brazil (HSB) Moderate Resoultion Imaging Spectrometer (MODIS)Moderate Resoultion Imaging Spectrometer (MODIS) Atmospheric Infrared Sounder (AIRS)Atmospheric Infrared Sounder (AIRS) Advanced Microwave Scanning Radiometer(AMSR)Advanced Microwave Scanning Radiometer(AMSR) Advanced Microwave Sounding Unit (AMSU)Advanced Microwave Sounding Unit (AMSU) Clouds and Earths Radiant Energy System (CERES)Clouds and Earths Radiant Energy System (CERES) Humidity Sounder for Brazil (HSB)Humidity Sounder for Brazil (HSB) Moderate Resoultion Imaging Spectrometer (MODIS)Moderate Resoultion Imaging Spectrometer (MODIS) May 24, 2002 Aqua Satellite aqua.nasa.gov aqua.nasa.gov 1:30pm equatorial crossing1:30pm equatorial crossing

8 MODIS Land Products Workshop - Atmosphere, land, and ocean remote sensing - Global coverage km swath - 36 channels - 250m pixels, 500m, 1km - On-board calibration - Improved geo-referencing - Atmosphere, land, and ocean remote sensing - Global coverage km swath - 36 channels - 250m pixels, 500m, 1km - On-board calibration - Improved geo-referencing The MODIS Instrument Moderate Resolution Imaging Spectroradiometer The MODIS Instrument Moderate Resolution Imaging Spectroradiometer

9 MODIS Land Products Workshop

10 MODIS Advantages: Global Coverage 1-2 Day temporal resolution Large swath width Nominal Cost (free) Products in Addition to Imagery Global Coverage 1-2 Day temporal resolution Large swath width Nominal Cost (free) Products in Addition to Imagery

11 MODIS Land Products Workshop MODIS Land Tiles/ Landsat Scenes Large swaths!

12 MODIS Land Products Workshop MOD 09Surface Reflectance MOD 11Land Surf. Temp. / Emissivity MOD 12Land Cover / Change MOD 13Vegetation Indices MOD 14Thermal Anomalies / Fire MOD 15 Leaf Area Index / FPAR MOD 16 Evapotranspiration/SR MOD 17Primary Production MOD 43BRDF / Albedo MOD 44Vegetation Continuous Fields MOD 09Surface Reflectance MOD 11Land Surf. Temp. / Emissivity MOD 12Land Cover / Change MOD 13Vegetation Indices MOD 14Thermal Anomalies / Fire MOD 15 Leaf Area Index / FPAR MOD 16 Evapotranspiration/SR MOD 17Primary Production MOD 43BRDF / Albedo MOD 44Vegetation Continuous Fields Short name MODIS Land Products

13 MODIS Land Products Workshop (Not recommended for most users!) Level 1A Data (Not recommended for most users!) = Raw, un-calibrated swath data = Does include lat, long reference Level 2 Data = More calibration, swath data = Does include lat, long reference Level 2G Data (minimal processing level for MOST users) = Calibrated = Integerized Sinusoidal Projection, tiled (Not recommended for most users!) Level 0 Data (Not recommended for most users!) = Unprocessed instrument/payload data at full resolution Level 1B Data (need special software to process) = Processed swath data to sensor units (i.e. calibrated radiance) = Does include lat, long reference MODIS Product Levels

14 MODIS Land Products Workshop H V 10 degree by 10 degree tiles Each tile is 1200 by km pixels H10 V4

15 MODIS Land Products Workshop Level 3 Data = Best pixel selection (e.g. one value/pixel) - often done using multi-temporal compositing Level 3 Data = Best pixel selection (e.g. one value/pixel) - often done using multi-temporal compositing Level 4 Data = Higher processing level than level 3 = Model output: leaf area index, photosynthesis Level 4 Data = Higher processing level than level 3 = Model output: leaf area index, photosynthesis MODIS Product Levels…contd

16 MODIS Land Products Workshop MODIS Product Versions Three versions (referred to as COLLECTIONS) (most current) - new projection = sinusoidal Three versions (referred to as COLLECTIONS) (most current) - new projection = sinusoidal Each collection represents progression of algorithm maturity OR a mistake was found Each collection represents progression of algorithm maturity OR a mistake was found Most people should use the latest version!!

17 MODIS Land Products Workshop Pixel Level Quality Codes QC (Bits 0,1) 00---Very best OK Not produced (clouds) Not produced (other) Algorithm (Bit 2) Empirical VI method Main RT method QC (Bits 0,1) 00---Very best OK Not produced (clouds) Not produced (other) Algorithm (Bit 2) Empirical VI method Main RT method Detectors (Bit 3) 0: Fine for up to 50% 1: Dead detectors > 50% Clouds (Bits 4,5) 00: Clear 01: Significant Clouds 10: Mixed pixel Detectors (Bit 3) 0: Fine for up to 50% 1: Dead detectors > 50% Clouds (Bits 4,5) 00: Clear 01: Significant Clouds 10: Mixed pixel

18 MODIS Land Products Workshop User-Guides/ Algorithm Theoretical Basis Documents

19 MODIS Land Products Workshop HDF-EOS Files Objects: Grids (Swaths and Points) Data Fields: 2D+ arrays Coded biophysical values ( bit) Defined Projection Objects: Grids (Swaths and Points) Data Fields: 2D+ arrays Coded biophysical values ( bit) Defined Projection Metadata QC Fields (for each grid) Pixel level quality codes Metadata QC Fields (for each grid) Pixel level quality codes Tile Level Metadata


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