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    7. Results Tab

    The ‘Results’ tab (Figure 1) executes a search for an event based on the search criteria and displays the results. Log in is required to download data and access all features on the Results tab.


    Figure 1 - HDDS Explorer Results Tab

    The left side of the page displays the results panel with the thumbnail and textual information for each scene returned from the search. The right side of the page is the Google Map which displays the search area and provides an interface for viewing footprints and browse images for the results (Figure 2).


    Figure 2 - Example Results tab

    The Search Results panel includes the following components:

    • Results Returned
    • Search Results List and Controls
    • Search Results Controls for Current Page
    • Export Metadata

    A.  Results Returned

    The results panel displays a thumbnail image and textual information for each scene returned from the search.

    If multiple events were selected, the results of the first event are displayed in the results panel. Use the ‘Event’ menu to select and view the results for each additional event (Figure 3).


    Figure 3 - Select Event Results

     The results list displays the first 10 results as shown in Figure 4.


    Figure 4 - Search Results Returned

     Click the information icon to see the total number of records for the query (Figure 5).


    Figure 5 - Total Search Results of query

    HDDS defaults to show 10 results per page. If you expect to view and/or download a large number of scenes, you may want to increase this number for easier data management. To increase the number of results shown per page, go to your user name on the top tool bar and select ‘Event Access’ from the pop down menu. Select ‘Interface Options’ from the menu on the right (Figure 6). Change the ‘Results per Page’ to 100 or higher.


    Figure 6 - Search Criteria - Number of records to return

    The default number of records to return is set at 1,000. The ‘Result Set Size’ can be increased to bring back a larger number of records. Click ‘Update’ at the bottom of the screen then select ‘Home’ on the top toolbar to return to the ‘Results’ tab.

    Additional items on the current page of results can be viewed by using the scroll bar.

    Page controls are shown at the top and bottom of the results list. These controls provide the following options for navigating through the results returned for the query:

    • Page Number ( ) - Selects a different page of results
    • Next - Displays the next page
    • Previous - Displays the previous page
    • First - Displays the first page
    • Last - Displays the last page

    B.  Search Results List and Controls

    Each search result record includes a thumbnail image, attribute information on each scene, and an icon menu for scene level result controls . Based on the type of data and user profile, some controls may not be available (Figure 7). Login is required for data download, bulk download, and Web Map Service (WMS) requests.


    Figure 7 - Example Scene Level Results

    The icon menu for scene level result controls includes the following:

    •   Show Footprint
    •   Show Browse Overlay
    •   Compare Browse
    •   Show Metadata and Browse
    •   Download Options
    •   Bulk Download
    •   Order WMS
    •   Exclude Scene

    For viewing and/or downloading a large number of scenes, the ‘Show Result Controls’ section covers result controls that apply to all results from the current page.

    1.  Show Footprint

    Select the ‘Show Footprint’ icon to display the footprint of the selected scene on the Google Map interface (Figure 8). When the footprint option is on, the footprint icon is highlighted. Click the highlighted icon to turn off the footprint option. Multiple footprints can be selected and displayed on the map. Each footprint displays in a different color.

    July 14, 2015 Notice:  The Google Map display is currently experiencing problems displaying the location icon  for a single point in Internet Explorer 11. This will affect the display on the Results tab for the single point footprints used for Civil Air Patrol results. Chrome and Firefox are good alternative web browsers until the issue is resolved.


    Figure 8 - Footprint Overlay

    2.  Show Browse Overlay

    Click the ‘Show Browse Overlay’  icon to display a preview image of the scene on the map (Figure 9). When the browse option is on, the browse icon is highlighted. Click the highlighted icon to turn off the browse option. Multiple browse can be selected and displayed on the map.


    Figure 9 - Browse Overlay

    3.  Compare Browse

    Click the ‘Compare Browse’  icon for all images that you would like to compare. Go to ‘Show Result Control’ and open the menu. Select ’Compare’. The new list will show the selected scenes and give the option to add to the map. Select ‘Home’ from the top tool bar to return to the full result listing.

    4.  Show Browse and Metadata

    Click the thumbnail image or ‘Show Browse and Metadata’  icon to display the browse image and full metadata for the selected scene (Figure 10). The metadata may be customized through the profile screen.


    Figure 10 - Browse and Metadata View

    The Browse and Metadata view includes the following:

    • Standard Browse - The Browse image of the selected scene displays at the top center of the lightbox display.
    • Data Set Attributes - Each result has a set of attributes describing the metadata associated with the listed scene. Each attribute has a hyperlink to the data dictionary to provide detailed information on that particular attribute.
    • Attribute Value - The information associated with each attribute.
    • Open New Window - Click ‘Open New Window’ to display the selected browse and metadata in a separate window.
    • FGDC Format - Click the ‘FGDC Format’ button at the bottom of the Data Set Attributes screen to display the metadata in the Federal Geographic Data Committee (FGDC) format (Figure 11). Scroll down to the bottom of the FGDC view and Click ‘Table Format’ to return to the ‘Browse and Metadata’ view.


    Figure 11 - FGDC Format

    5.  Download Options

    Click the ‘Download Options’ icon  to display a list of download options for the scene (Figure 12).


    Figure 12 - Download Options

    Depending on the type of product, multiple options may be available for download. Select ‘Download’ for the desired product.

    A ‘File Download’ dialog box provides an option to save the file (Figure 13). Select ‘Save’ to download the file.


    Figure 13 - Download Scene Dialog

    6.  Add to Bulk Download

    The ‘Add to Bulk Download’ icon  adds the selected scene to the ‘Item Basket’ (Figure 14). Directions to add all results from the current page to the bulk download order are covered in the 'Search Result Controls for Current Page' section below.


    Figure 14 - Bulk Download and Item Basket

    Select the ‘Item Basket’ in the menu or at the bottom of the result list to display the ‘Bulk Download Item Basket’. Expand an event to view the list of ordered scenes (Figure 15). Based on the event, multiple options may be available for download. The product type defaults to Full Resolution. Select ‘Modify Options For All Scenes’ to change the type of product to download for the entire order.


    Figure 15 - Bulk Download Item Basket

    After identifying the type of product desired, select ‘Proceed to Checkout’ to review the bulk request (Figure 16).


    Figure 16 - Bulk Download Order Review

    Select the ‘Submit Order’ button to submit the bulk order for processing. The Bulk Download Method (Figure 17) defaults to the Bulk Download Application (BDA) which utilizes an easy-to-use interface to download large quantities of data.


    Figure 17 - Bulk Download Options

    The BDA can be used to automatically retrieve data with little to no user interaction. The application automatically iterates through the order and downloads each scene until all have been processed. First time users need to download, install and open the BDA. Returning users need to open the installed BDA to complete the bulk download request.

    The Bulk Media Application requires the submission of an external hard drive and a return shipping FEDEX or UPS account number. Contact eocustserve@usgs.gov to request the Bulk Media Application.

    The ‘Bulk Download Validation’ form (Figure 18) displays the order number and scenes requested through the bulk download interface.


    Figure 18 - Bulk Download Validation

    7.  Order Scene

    The ‘Order Scene’ icon can be used to place an order for a Web Mapping Service (WMS) product. All scenes can be added by selecting ‘Add All Results From Current Page to Order’ from the ‘Show Result Controls’ menu. The WMS data is created from the 90 percent quality medium resolution product. Note:  The ‘Order Scene’ icon is only available for georeferenced products. Detailed directions for placing an order can be found under the WMS On-Demand section.

    8.  Exclude Scene

    The Exclude Scene icon  can be used to exclude a scene from bulk download or the metadata export. Click ‘Restore Excluded Scenes’ at the top of the result list to return the excluded scenes to the list.

    C.  Search Result Controls for Current Page

    Expand the ‘Show Result Controls’ menu (Figure 19) to view options:

    • Display all footprints on the map interface from the search results list
    • Display all browse on the map display from the search results list
    • Add all search results displayed on this page to the bulk item basket
    • Add all search results from current page to order
    • Compare Browse tool
    • Modify Browse Opacity (defaults to 100%)


    Figure 19 - Search Result Controls

    1.  Show All Footprints

    Select ‘Show All Footprints From Current Page’ (Figure 20) to display all footprints from the current page of results. Deselect to clear the footprints.


    Figure 20 - Show All Footprints

    2.  Show All Browse

    Select ‘Show All Browse From Current Page’ (Figure 21) to display all browse from the current page of results. Deselect this option to clear all browse.


    Figure 21 - Show All Browse

    3.  Add All Results to Bulk Download

    Select ‘Add All Results from Current Page to Bulk Download’ to add all results from the current page to the item selection basket for a bulk download order. You must be logged in for this option to be displayed.

    Detailed directions for placing an order can be found under the Bulk Download Application section.

    4.  Add All Results to Order

    Select ‘Add All Results from Page to Order’ (Figure 22) to add all results displayed on the current page to the item selection basket for a WMS On-Demand order. You must be logged in for this option to be displayed.

     Detailed directions for placing an order can be found under the WMS On-Demand section.


    Figure 22 - Add All Results from Current Page to Order

    5.  Compare Browse

    Select ‘Compare’ to view the results that were selected with the scene level ‘Compare Browse’ result control . The new list will show the selected scenes and give the option to add the browse overlays to the map. Select ‘Home’ from the top tool bar to return to the full result listing. It may be helpful to adjust the Browse Opacity while comparing images.

    6.  Browse Opacity

    The ‘Browse Opacity’ slider adjusts the opacity level of the overlay browse images (Figure 23).


    Figure 23 - Browse Opacity Example

    D.  Export Metadata

    HDDS Explorer provides an option to ‘Export Metadata’ in a number of popular formats. To export metadata, select the ‘Click here to export your results’ icon (Figure 24).


    Figure 24 - Export Metadata

    In the Metadata Export Dialog Box (Figure 25), the Export Type can be set to select metadata results from the ‘Current Results’ or ‘Non-Limited Results’ to export metadata for all records included in the search results. 


    Figure 25 - Metadata Export Dialog Box

    Select an option from the Format menu (Figure 26).


    Figure 26 - Export Options

    The following metadata formats are supported:

    • KMZ - Generates a .kmz file with the returned, non-excluded results from a search. The information in this export includes the full metadata as displayed in the standard metadata dialog. The KML standard is used for this KMZ file. Select the ‘KMZ - Include Browse’ option to include browse images with the metadata. Note:  Exports with a large number of browse images will take longer to load in a GIS software package or mapping application.
    • Comma Delimited - Generates a .txt file of the Data Set Attributes, with the delimiter being a comma for easy ingest into Microsoft Excel.
    • Pipe Delimited - Generates a .txt file of the Data Set Attributes, with the delimiter being a pipe ‘|’ for easy ingest into popular database packages.
    • FGDC - Generates a FGDC format file in ISO 19115 format.
    • CSV – Creates a comma-separated values (CSV) file containing the Data Set Attributes. 
    • Shapefile - Generates a .zip file with the returned, non-excluded results from a search. Files included in the .zip file include a .shp, .shx, .dbf, and .prj. Shapefiles are generated using ERSI standards. 

    The export process is a batch process so as not to tie up the user’s metadata request. The link to the metadata requested is emailed to the customer’s email address in their profile. The message displayed (Figure 27) informs the user to check their email in a few minutes for their metadata results.


    Figure 27 - Export Message

    Figure 28 is an example email message for metadata results.


    Figure 28 - Example metadata results message

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