U.S. Department of the Interior U.S. Geological Survey Discover MODIS Land at your Desk January 17, 2007 Calli B. Jenkerson* MODIS Science Data Specialist.

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Presentation transcript:

U.S. Department of the Interior U.S. Geological Survey Discover MODIS Land at your Desk January 17, 2007 Calli B. Jenkerson* MODIS Science Data Specialist LP DAAC * SAIC, contractor to U.S. Geological Survey (USGS) Center for Earth Resources Observation and Science, Sioux Falls, SD. Work performed under USGS contract 03CRCN0001.

Rumors  Better resolution than AVHRR  Better repeat cycle than Landsat  Free data  Too many products  Weird map projection  Hard to find  Can I use MODIS data in my application?

Land Processes Distributed Active Archive Center at USGS Center for Earth Resources Observation and Science (LP DAAC at EROS)

MODIS Land Product Information

MOD09GA V5 MOD09GQ V5 MOD09CMG V5 MYD09GA V5 MYD09GQ V5 MYD09CMG V5

MOD09GA V5 MOD09GQ V5 MOD09CMG V5 MYD09GA V5 MYD09GQ V5 MYD09CMG V5

MOD09GA V5 MOD09GQ V5 MOD09CMG V5 MYD09GA V5 MYD09GQ V5 MYD09CMG V5

MODIS Land Product One-Pagers

MODIS Land Product One-Pagers

MODIS Land Product One-Pagers Terra, Aqua, and Combined V004 and V005: Surface Reflectance Land Surface Temp/Emissivity Land Cover / Land Cover Dynamics Vegetation Indices Thermal Anomalies/Fire LAI/fPAR Gross Primary Production BRDF/Albedo

EDG - Earth Observing System (EOS) Data Gateway Data Pool - LP DAAC On-Line Archive GloVis – USGS Global Visualization Viewer

Common Data Access Methods

Less Common Data Access Methods

Summary: Data Access  EDG  GloVis  Data Pool  MTMGW  Subscription  MODExtract

Considerations for Use  File Format (HDF-EOS)  Map Projection (Sinusoidal)  Bit-encoded Quality Information

MODIS Reprojection Tool (MRT)

MRT Capabilities Overview  Geographic  Hammer  Mollweide  Sinusoidal  UTM  Transverse Mercator  Integerized Sinusoidal  Goode’s Interrupted Homolosine  Lambert Azimuthal  Lambert Conformal Conic  Polar Stereographic  Albers Equal Area -Spatial Subset-Mosaic -Spectral Subset-Outputs.hdf,.bin,.tif -Resampling-Datum Conversion Reproject Sinusoidal to:

SinusoidalLambert Azimuthal MRT Capabilities Overview

MODIS Reprojection Tool (MRT) Utility MRT Capabilities Overview

Integerized Sinusoidal Lambert Azimuthal MRT Capabilities Overview

MODIS Swath Reprojection Tool (MRTSwath)

Developed for Level-2 MODIS Land Data Provides same general capabilities as MRT except -Requires Geolocation input (Level 1A MOD03) -Does not include mosaic function MRTSwath Overview

Level-2 Swath Level-2 Albers MRTSwath Overview

MODIS Land Data Operational Product Evaluation Tools (LDOPE)

MODIS LDOPE Tools  Perform any processing function necessary for manipulating MODIS Land data, except reprojection  QABits, mosaicking, subsetting, format conversion, multidimensionality, etc.  Stand-alone executables invoked from a command-line interface  Supported on Irix, Solaris, Linux, and Windows operating systems

MODIS Land Product Information: Collection Updates Product Characteristics QC-Bit Interpretation SDS Specifications Search and Order Tips Additional Links

MODIS Land Product Common Access: EDG Data Pool GloVis

MODIS Land Product Alternative Access: MTMGW Subscription MODExtract

MODIS Land Product Tools: HDF-EOS Tools MRT MRTSwath MODIS LDOPE

Download individual tiles in standard format Data Applications Model Search & Order MODIS tiles Conduct user-specified, local processing to create application-ready MODIS data Use MODIS data Historical Approach

Download individual tiles in standard format Data Applications Model Select MODIS tiles Download application – ready MODIS data Search & Order MODIS tiles Conduct user-specified, local processing to create application-ready MODIS data Initiate and monitor remote processing job Use MODIS data Historical Approach Future Approach Specify processing options Day 2 Thursday 9:00 – 9:30

Questions, Comments, or Concerns Calli Jenkerson MODIS Science Data Specialist LP DAAC (605)