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MODIS Land Products Workshop

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... Thermal Emission and Reflection Radiometer (ASTER) ... Spectro-Radiometer (MISR) ... Advanced Microwave Scanning Radiometer(AMSR) Advanced Microwave ... – PowerPoint PPT presentation

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Title: MODIS Land Products Workshop


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
2
About The Instructors Matt Reeves Research
Assistant Numerical Terradynamics Simulation
Group University of Montana Website
http//www.forestry.umt.edu/ntsg/ Email
reeves_at_ntsg.umt.edu Phone 406 243 6228 Dave
Verbyla Professor of GIS/Remote
Sensing Dept. of Forest Sciences University
of Alaska Fairbanks Website
http//nrm.salrm.uaf.edu/dverbyla Email
D.Verbyla_at_uaf.edu Phone 907-474-6184
3
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
Module1 Introduction to MODIS
5
EOS DataGateway
Land Validation Home Site
Direct to PI Websites
http//modis.gsfc.nasa.gov/cgi-bin/texis/organigra
m/weblinks
6
Terra Satellite terra.nasa.gov
  • 1030 am equatorial crossing
  • Advanced Spaceborne Thermal Emission and
    Reflection Radiometer (ASTER)
  • Clouds Earth's Radiant Energy System (CERES)
  • Multi-angle Imaging Spectro-Radiometer
    (MISR)
  • Moderate-Resolution Imaging Spectroradiometer
    (MODIS)
  • Measurements of Pollution in the Troposphere
    (MOPITT)

December 18, 1999
7
Aqua Satellite aqua.nasa.gov
  • 130pm equatorial crossing
  • Atmospheric Infrared Sounder (AIRS)
  • Advanced Microwave Scanning Radiometer(AMSR)
  • Advanced Microwave Sounding Unit (AMSU)
  • Clouds and Earths Radiant Energy System (CERES)
  • Humidity Sounder for Brazil (HSB)
  • Moderate Resoultion Imaging Spectrometer (MODIS)

May 24, 2002
8
The MODIS Instrument Moderate Resolution Imaging
Spectroradiometer
- Atmosphere, land, and ocean remote sensing -
Global coverage - 2330 km swath - 36 channels -
2 _at_ 250m pixels, 5 _at_ 500m, 29 _at_ 1km - On-board
calibration - Improved geo-referencing
9
(No Transcript)
10
MODIS Advantages
  • Global Coverage
  • 1-2 Day temporal resolution
  • Large swath width
  • Nominal Cost (free)
  • Products in Addition to Imagery

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

13
MODIS Product Levels
Level 0 Data (Not recommended for most users!)
Unprocessed instrument/payload data at full
resolution
Level 1A Data (Not recommended for most
users!) Raw, un-calibrated swath data Does
include lat, long reference
Level 1B Data (need special software to
process) Processed swath data to sensor units
(i.e. calibrated radiance) 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
14
10 degree by 10 degree tiles
Each tile is 1200 by 1200 1km pixels
15
MODIS Product Levelscontd
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
16
MODIS Product Versions
  • Three versions (referred to as COLLECTIONS)
  • 001
  • 003
  • 004 (most current) - new projection sinusoidal
  • Each collection represents progression of
  • algorithm maturity OR a mistake was found
  • Most people should use the latest version!!

17
Pixel Level Quality Codes
18
User-Guides/ Algorithm Theoretical Basis
Documents
19
HDF-EOS Files
Objects Grids (Swaths and Points) Data
Fields 2D arrays Coded biophysical values (8
- 16 bit) Defined Projection
Metadata QC Fields (for each grid) Pixel level
quality codes
Tile Level Metadata
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