LP DAAC User Services by hiy10027

VIEWS: 0 PAGES: 31

									                                                  LP DAAC User Services
     • Provide support to users on ASTER data related problems;
     • Resources on ASTER:
                   EROS Data Center Land Processes DAAC URL:
                   http://lpdaac.usgs.gov/main.html

                   EOS Data Gateway URL:
                   http://edcimswww.cr.usgs.gov/pub/imswelcome

                   ASTER On-Demand Gateway URL:
                   http://lpdaac.usgs.gov/asterondemand/index.html

                   JPL ASTER URL:
                   http://asterweb.jpl.nasa.gov

                   LPDAAC-JPL ASTER User Handbook URL:
                   ftp://asterweb.jpl.nasa.gov/outgoing/handbook/aster_user_guide_v2.pdf

                   GDS Japan URL:
                   http://www.gds.aster.ersdac.or.jp

                   HDF tool list link:
                   http://hdfeos.gsfc.nasa.gov/hdfeos/softwarelist.cfm

     • LP DAAC Contact Information:
              LP DAAC User Services                                          Voice:     605-594-6116
              USGS/EROS Data Center                                          Toll Free: 866-LPE-DAAC (573-3222)
              47914 252nd Street                                             Fax:        605-594-6963
              Sioux Falls, SD 57198-001                                      E-mail: edc@eos.nasa.gov
Land Processes Distributed Archive Center (LP DAAC)      http://lpdaac.usgs.gov/main.html
                                                LP DAAC User Services




Land Processes Distributed Archive Center (LP DAAC)   http://lpdaac.usgs.gov/main.html
                                                 LP DAAC User Services




Land Processes Distributed Archive Center (LP DAAC)   http://lpdaac.usgs.gov/main.html
                                     Other Tool for Searching ASTER Data

          •    ASTER Browse Tool --- USGS Global Visualization Viewer
               http://glovis.usgs.gov/
               http://edcdaac.usgs.gov/aster/glovis.html

          •    New release version 3.0 of GloVis support for display ASTER Decorrelated
               Stretch VNIR browse images by using Level 1B metadata.

          •    The inventory of ASTER granules is current through the end of May 2002.
               Infrastructure is being put into place to keep the inventory up-to-date on a
               daily basis, but it is not ready yet.

          •    Directly ordering ASTER granules is not yet supported as this time. We are in
               the process of designing the shopping cart option.




Land Processes Distributed Archive Center (LP DAAC)   http://lpdaac.usgs.gov/main.html
                                          USGS Global Visualization Viewer
  http://glovis.usgs.gov/




Land Processes Distributed Archive Center (LP DAAC)   http://lpdaac.usgs.gov/main.html
    GloVis Continue, http://glovis.usgs.gov/




Land Processes Distributed Archive Center (LP DAAC)   http://lpdaac.usgs.gov/main.html
                                      GloVis Continue, http://glovis.usgs.gov/




Land Processes Distributed Archive Center (LP DAAC)   http://lpdaac.usgs.gov/main.html
                       Is there any other way to access ASTER data except EDG?
          •    DataPool --- http://edcdaac.usgs.gov/tutorial/datapool.html

          •    The DataPool is an online archive that currently provides FTP access to
               selected ASTER and MODIS data products.

          •    Goals:
               --- Support increased electronic distribution
               --- Reduce need to pull data from archive
               --- Reduce need for order submissions
               --- Give science and applications users timely, direct access to data

          •    Currently Available ASTER product in the DataPool
               ASTER level-1B version 3 over United States Territories only




Land Processes Distributed Archive Center (LP DAAC)   http://lpdaac.usgs.gov/main.html
                                   DataPool, http://edcdaac.usgs.gov/tutorial/datapool.html




Land Processes Distributed Archive Center (LP DAAC)   http://lpdaac.usgs.gov/main.html
                                  DataPool, http://edcdaac.usgs.gov/tutorial/datapool.html




Land Processes Distributed Archive Center (LP DAAC)   http://lpdaac.usgs.gov/main.html
DataPool
DataPool, http://edcdaac.usgs.gov/tutorial/datapool.html
                                 DataPool, http://edcdaac.usgs.gov/tutorial/datapool.html




Land Processes Distributed Archive Center (LP DAAC)   http://lpdaac.usgs.gov/main.html
                                   DataPool, http://edcdaac.usgs.gov/tutorial/datapool.html




Land Processes Distributed Archive Center (LP DAAC)   http://lpdaac.usgs.gov/main.html
                             Where do I find the projection information within the
                                                  metadata?




Land Processes Distributed Archive Center (LP DAAC)   http://lpdaac.usgs.gov/main.html
                                     What software can read HDF-EOS format?


             •     HDF tool list link:
                   http://hdfeos.gsfc.nasa.gov/hdfeos/softwarelist.cfm

             •     WINVICAR

             •     ERDAS Imagine 8.5 (with update HDF importer patch)

             •     ENVI 3.5

             •     PCI Geomatics




Land Processes Distributed Archive Center (LP DAAC)   http://lpdaac.usgs.gov/main.html
                                 I. ASTER L1B data HDF conversion in WINVICAR

                http://winvicar.jpl.nasa.gov/
                From Beta test, register and then JPL will send you the software download instruction.
                Follow the instructions for installation.
                The command used for handling HDF format is “hdfextract”.




Land Processes Distributed Archive Center (LP DAAC)   http://lpdaac.usgs.gov/main.html
                  II. Read ASTER L1B data in ERDAS 8.5 with georeferencing information:




                                                                                                   click on „OK‟ will bring you a pop up window:




                                                 Click on „Correction…‟,


    Check „Write Transform to Image‟, the „Transformation Order‟ 1 will be the default setting. Click on „OK‟, and you‟ll get imported image.
    For SWIR and TIR bands image import, just use „Next Image‟ on „Importer‟ window to identify bands needed to be imported with „Correction‟ option.
    The output image file is in Lat/Long geographic coordinate system. You can re-project it to UTM projection from there.

Land Processes Distributed Archive Center (LP DAAC)          http://lpdaac.usgs.gov/main.html
                                                      II. ERDAS 8.5 continue




Land Processes Distributed Archive Center (LP DAAC)   http://lpdaac.usgs.gov/main.html
                                                         II. ERDAS 8.5 continue
       HDF file imported with “Correction” option, it‟s in geographic Lat/Lon,   Projected from geographic to North-up UTM.




       HDF file imported to ERDAS without “Correction” option, georeference info. would not carry to the image:




Land Processes Distributed Archive Center (LP DAAC)       http://lpdaac.usgs.gov/main.html
                    III. Read ASTER L1B data in ENVI 3.5 with georeferencing information:




                   1.     Editing granule header file:

                   From „File‟ „Edit ENVI Header‟, “Edit Header Input File” window
                           will pop up.
                   Click „Open File‟ button on this window, highlight the ASTER granule
                           (VNIR, SWIR, or TIR) you‟d like to edit the header, click „OK‟.
                   Click last window „Edit Attributes‟ button.

Land Processes Distributed Archive Center (LP DAAC)      http://lpdaac.usgs.gov/main.html
                                                      III. ENVI 3.5 continue




                                                        Change Image Coord X, Y to 1.5, 1.5,
                                                        click „Change Proj …‟.




Land Processes Distributed Archive Center (LP DAAC)     http://lpdaac.usgs.gov/main.html
                                                  III. ENVI 3.5 continue
     2. Reproject to make a North-up image




Land Processes Distributed Archive Center (LP DAAC)   http://lpdaac.usgs.gov/main.html
                                                  III. ENVI 3.5 continue


                       Path-Oriented image                                     North-Up image, in UTM projection




Land Processes Distributed Archive Center (LP DAAC)   http://lpdaac.usgs.gov/main.html
                   IV. Read ASTER L1B data in PCI with georeferencing information:
               1. Setup Project:
        Start Ortho-engine main manual bar; „File‟  „New‟ to setup your new project criteria.




           Click on „Accept‟,

           Click „Metre‟ on “Set Projection” window, chose „UTM‟ from the drop down panel.
           Two popup windows will prompt you to choose UTM zones and rows.
Land Processes Distributed Archive Center (LP DAAC)    http://lpdaac.usgs.gov/main.html
                                                            IV. PCI continue




          After the selection step of „Output Projection‟ parameters, click
          on „Set GCP Projection based on Output Projection‟ bar near
          bottom, you‟ll see all the parameters from what you just
          defined.
                                                                                Click „Accept‟



Land Processes Distributed Archive Center (LP DAAC)        http://lpdaac.usgs.gov/main.html
                                                           IV. PCI continue
               2. Data Input:
               Select „Data Input‟ under „Processing Step‟,
               Click on the first button for reading ASTER HDF-EOS data in.




            You can either select a single band, or one group of telescope as shown next, click „read‟.




Land Processes Distributed Archive Center (LP DAAC)       http://lpdaac.usgs.gov/main.html
                                                         IV. PCI continue
    3. Ortho-image generation:
     a. Open image file:

    On OrthoEngine main manual bar, chose „Ortho Generation‟ under „Processing Step‟, click on first button to open image (*.pix) that
    just created from last step.




                                                             Select bands and click „Load & Close‟. Image view windows will popup.



Land Processes Distributed Archive Center (LP DAAC)      http://lpdaac.usgs.gov/main.html
                                                      IV. PCI continue
           b. Ortho image generation:




                                                                                 Click on the third button to schedule ortho generation,




                                                                               Chose from upper left panel from „Available Image‟
                                                                               list, click on the arrow button between „Available
                                                                               Image‟ panel and „Images to Process‟ panel.



Land Processes Distributed Archive Center (LP DAAC)   http://lpdaac.usgs.gov/main.html
                                                            IV. PCI continue




                                                                                    Change „Resampling:‟ under
                                                                                    „Processing Option‟ from default
                                                                                    „Nearest‟ to „Cubic‟,




     Click „Generate Orthos‟ button will start the processing.


     The ortho image of ASTER VNIR three bands will have the UTM projection information embedded in the *.pix file.




Land Processes Distributed Archive Center (LP DAAC)         http://lpdaac.usgs.gov/main.html
                                                          IV. PCI continue
   4. Export PCI image format to other image format:

   To export it to any other format, from OrthoEngine
   main manual bar, „File‟  „File Utility…‟ window,



                                   „File‟  „Export to …‟; you will see list of options for your output image format.
                                   Taking output to ERDAS Imagine format as an example here:




                                   Make your selection of data need to be exported, click „Add‟ will active „Export‟ button. Click „Export‟.



Land Processes Distributed Archive Center (LP DAAC)      http://lpdaac.usgs.gov/main.html

								
To top