seadas海洋遥感软件使用说明.pdf

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Korea Ocean Satellite Center KORDI Hee-Jeong HAN Nov 5, 2008

1.  SeaDAS overview 2.  Run SeaDAS 3.  PC-SeaDAS Installation 4.  PC-SeaDAS exercise(L1A->L2) 5.  GDPS overview

Software for satellite data analysis Seadas

  SeaDAS: SeaWiFS Data Analysis System   a comprehensive image analysis package fo r the processing, display, analysis, and qualit y control of ocean color data. http://oceancolor.gsfc.nasa.gov/seadas (SeaDAS web) 4

- Ocean Remote Sensing sensors supported on SeaDAS 1994.07 SeaDAS beta released. NIMBUS/CZCS ADEOS/OCTS Orbview2/SeaWiFS TERRA-AQUA /MODIS 1978 Sep to 1986 Jan 〜10 years blank period! 1996 Nov to 1997 Jun 1997 Sep to 2004 Dec (LAC around Asia) 2002 Jun to present (Aqua) 2007 Jan to present (Terra)

  Ocen Remote Sensing Sensors can generated on SeaD •  L1A, L1B, L2, L3, SMI, Browse image data processing •  L1A -> L0 reverse data processing •  L1A, L1B, L2, L3, SMI, Browse image AS –  SeaWiFS –  MODIS –  CZCS •  L1A, L1B, L2, L3, SMI –  OCTS •  L1A, L1B, L2, L3, SMI 6

  Various Data Display –  Available data formats •  All SeaWiFS data products •  Ocean related products of MODIS (L1A, L1B, L2, L2A, L2B, L2 SST, L3, L4) •  NASDA format of OCTS (L0, L1B, L2, L3-Binned Mapped) •  SeaDAS format of OCTS(L1B, L2) •  CZCS (Ocean Color format) •  General HDF format •  True Color Image and PNG format 7

–  General Functions slicing •  User-controlled display scaling •  Multiple frame buffers for image display •  Interactive annotation generation •  Histogram and color bar •  Color manipulation, multiple concurrent color tables, density •  Cursor location and data displaying •  Image data spreadsheet for raw and/or geophysical values •  Image looping/movie •  Scatter plot/contour plot/profile plot •  Data display across multiple bands •  Bathymetry generation •  Arithmetic band functions •  X-Y shifting •  User-defined band operations •  Postscript, PNG output image formats. •  ASCII, HDF, and binary flat file output data formats. 8

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